Pioneer DEH 1800R Service Manual

5/28/2018 Pioneer DEH 1800R Service Manual

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ORDER

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2005

DEH-1800R/XN/EW

CRT35

HIGH POWER CD PLAYER WITH RDS TUNER

DEH-1800R

/XN/EW

DEH-1820R

/XN/EW

This service manual should be used together with the following manual(s):

Model No. Order No. Mech. Module Remarks

CX-3166 CRT3582 S10.5STD CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

For details, refer to "Important Check Points for Good Servicing".

K-ZZA. NOV. 2005 Printed in J


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SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.

Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely

repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.

If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so

and refer the repair to a qualified service technician.

-Safety Precautions for those who Service this Unit. When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable

results.

Caution:

1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.

2. During repair or tests, do not view laser beam for 10 seconds or longer.

-CD Section Precaution1. You should conform to the regulations governing

the product (safety, radio and noise, and other

regulations), and should keep the safety duringservicing by following the safety instructions

described in this manual.

2. Before disassembling the unit, be sure to turn off

the power. Unplugging and plugging the connectors

during power-on mode may damage the ICs inside

the unit.

3. To protect the pickup unit from electrostatic discharge

during servicing, take an appropriate treatment

(shorting-solder) by referring to "the DISASSEMBLY".

4. After replacing the pickup unit, be sure to check the

grating.


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[Important Check Points for Good Servicing]In this manual, procedures that must be performed during repairs are marked with the below symbol.Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment byfollowing the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such asradio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris.Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secureconnections and suitable usage. Please exchange the power cord if necessary.

0 Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.Adjustments should be performed in accordance with the procedures/instructions described in this manual.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, propercleaning should be performed to restore their performances.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance.Make sure the proper amount is applied.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should beinstalled before shipment. Please be sure to follow this method especially if it is specified in this manual.


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CONTENTS

SAFETY INFORMATION..................................................................................................................................... 2

1. SPECIFICATIONS ............................................................................................................................................ 5

2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6

2.1 PACKING ................................................................................................................................................... 6

2.2 EXTERIOR................................................................................................................................................. 8

2.3 CD MECHANISM MODULE..................................................................................................................... 10

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 12

3.1 BLOCK DIAGRAM ................................................................................................................................... 12

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 14

3.3 KEYBOARD UNIT.................................................................................................................................... 20

3.4 CD MECHANISM MODULE..................................................................................................................... 22

4. PCB CONNECTION DIAGRAM ..................................................................................................................... 26

4.1 TUNER AMP UNIT................................................................................................................................... 26

4.2 KEYBOARD UNIT.................................................................................................................................... 30

4.3 CD CORE UNIT(S10.5) ........................................................................................................................... 32

5. ELECTRICAL PARTS LIST ............................................................................................................................ 34

6. ADJUSTMENT ............................................................................................................................................... 38

6.1 CD ADJUSTMENT................................................................................................................................... 38

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT .................................................... 40

6.3 ERROR MODE ........................................................................................................................................ 42

7. GENERAL INFORMATION............................................................................................................................. 43

7.1 DIAGNOSIS ............................................................................................................................................. 43

7.1.1 DISASSEMBLY ..................................................................................................................................... 43

7.1.2 CONNECTOR FUNCTION DESCRIPTION.......................................................................................... 46

7.2 PARTS...................................................................................................................................................... 47

7.2.1 IC .......................................................................................................................................................... 47

7.2.2 DISPLAY ............................................................................................................................................... 55

7.3 OPERATIONAL FLOW CHART ............................................................................................................... 56

8. OPERATIONS ................................................................................................................................................ 57


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1. SPECIFICATIONS


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2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

NOTES : Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. The>mark found on some component parts indicates the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of identical designation.

Screw adjacent to mark on the product are used for disassembly.

For the applying amount of lubricants or glue, follow the instructions in this manual.

(In the case of no amount instructions,apply as you think it appropriate.)

"

1

7

6


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(1) PACKING SECTION PARTS LIST

(2) CONTRAST TABLE

DEH-1800R/XN/EW and DEH-1820R/XN/EW are constructed the same except for the following:

Owner's Manual,Installation Manual

Mark No. Description Part No.

1 Cord Assy CDE7704

2 Accessory Assy CEA3865

3 Fixing Screw(M2 x 4) CBA1994

4 Screw CBA1650

* 5 Polyethylene Bag CEG1160

6 Handle CNC5395

7 Bush CNV3930

8 Polyethylene Bag CEG-162 9 Carton See Contrast table(2)

10 Contain Box See Contrast tab

11 Protector CHP2664

12 Protector CHP2868

13-1 Owner's Manual CRD4031

13-2 Installation Manual CRD4025

* 13-3 Passport CRY1013

* 13-4 Warranty Card CRY1157 14 Case Assy CXB3520


Mark No. Description DEH-1800R/XN/EW DEH-1820R/XN/EW

9 Carton CHG5640 CHG5637

10 Contain Box CHL5640 CHL5637

Part No. Language

CRD4031 English, Spanish, German, French, Italian, Dutch, Russian

CRD4025 English, Spanish, German, French, Italian, Dutch, Russian


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2.2 EXTERIOR

57


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(1) EXTERIOR SECTION PARTS LIST

(2) CONTRAST TABLE

DEH-1800R/XN/EW and DEH-1820R/XN/EW are constructed the same except for the following:


1 Screw BSZ26P060FTC


3 Cord Assy CDE7704

4 Cap CXK-003

5 Cable CDE7983

6 Case CNB2793

7 Holder CNC8659

8 Insulator CNM91459 Tuner Amp Unit CWN1268

10 Screw ASZ26P060FTC

11 Screw BMZ26P160FTC

12 Screw BPZ26P080FTC

>

13 Fuse(10 A) CEK1208

14 Pin Jack(CN352) CKB1059

15 Plug(CN901) CKM1376

16 Connector(CN831) CKS3581


18 Chassis Unit See Contrast table(2)

19 Antenna Jack(CN401) CKX1056

20 Holder CND2414

21 Holder CND2413

22 Heat Sink CNR1762

23 FM/AM Tuner Unit CWE1951

24 Holder CND1054

25 Button(DETACH) CAC4836

26 Spring CBH1835

27 Spring CBH2208

28 Spring CBH2367

29 Bracket CNC6791

30 Holder CNC8042

31 Cover CNM6276

32 Panel CNS8403

33 Arm CNV4692

34 Arm CNV4728

35 Arm CNV5576

36 Screw IMS20P030FTB 37 Detach Grille Assy See Contrast tab

38 Screw BPZ20P100FTB

39 Button(DETACH) CAC9382

40 Button(VOLUME(+/ -)) CAC9384

41

Button(TA,1-6,LOCAL/BSM,AUDIO)

CAC9385

42 Button(,EJECT) CAC9389

43 CD Mechanism Module(S10.5) CXK5701

44 Button(EQ,LOUDNESS) CAC9390

45 Button(SOURCE,BAND) CAC9516

46 Spring CBH2210

47 Cover CNS8367

48 LCD CAW1900


50 Holder CND2949

51 Transistor(Q911,921,991) 2SD2396

52 IC(IC302) TDA7386

53 Lighting Conductor CNV8712

54 Rubber CNV8713

55 Connector CNV8714

56 Grille Unit See Contrast tab

57 Spacer CNN1238


Mark No. Description DEH-1800R/XN/EW DEH-1820R/XN/EW

18 Chassis Unit CXC5263 CXC5264

37 Detach Grille Assy CXC5232 CXC5233

56 Grille Unit CXC5269 CXC5270


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2.3 CD MECHANISM MODULE


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CD MECHANISM MODULE SECTION PARTS LIST


1 CD Core Unit(S10.5) CWX3090



4 Screw BMZ20P025FTC


6 Screw(M2 x 3) CBA1511

7 Screw(M2 x 4) CBA1835

8 Washer CBF1038 9

10 Spring CBH2609

11 Spring CBH2612

12 Spring CBH2614

13 Spring CBH2616

14 Spring CBH2617

15 Spring CBH2620

16 Spring CBH2855

17 Spring CBH2937

18 Spring CBH2735

19 Spring CBH2854

20 Spring CBH2642

21 Spring CBH2856

22 Spring CBH2857

23 Spring CBH2860

24 Spring CBH2861

25 Spring CBL1686

26 Arm CND1909

27 Frame CND2582

28 Bracket CND2583

29 Arm CND2584 30 Lever CND2585

31 Arm CND2586

32 Bracket CND2587

33 Arm CND2588

34 Lever CND2589

35 Holder CNV7201

36 Gear CNV7207

37 Gear CNV7208

38 Gear CNV7209

39 Gear CNV7210

40 Gear CNV7211

41 Gear CNV7212

42 Rack CNV7214

43 Arm CNV7216

44 Roller CNV7218

45 Gear CNV7219

46 Guide CNV7361

47 Gear CNV7595

48 Guide CNV7799

49 Arm CNV7805

50 Rack CNV8342

51 Roller CNV8343

52 Holder CNV8344

53 Arm CNV8345

54 Guide CNV8347

55 Arm CNV8348

56 Arm CNV8349 57 Arm CNV8350

58 Clamper CNV8365

59 Arm CNV8386

60 Guide CNV8396

61 Arm CNV8413

62 Collar CNV8938

63 Motor Unit(M2) CXC4026

64 Arm Unit CXC4027

65 Chassis Unit CXC4028

66 Gear Unit CXC4029

67 Frame Unit CXC4031

68 Motor Unit(M1) CXC6742

69 Screw Unit CXC6359

70 Screw JFZ20P020FTC

71 Screw JGZ17P022FTC

72 Washer YE20FTC

73 Pickup Unit(P10.5)(Service) CXX1942

74 Screw IMS26P030FTC



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3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

PICKUP UNIT(P10.5)(SERVICE) D CD CORE UNIT(S10.5)

C

BRST,BRXEN,BSRQ

CN702

Q101

M

LASERDIODE

MONITORDIODE

S903DSCSNS

SPINDLEMOTOR

MCARRIAGEMOTORLOAD/

LD-

MD

15

5

HOLOGRAMUNIT

IC301BA5839FP

CDDRIVER

1VD

VD

16LOUT

11

CN101

16VO3(-)

15VO3(+)

18VO4(-)

17VO4(+)

22LDIN

19LOUT

9MUTE

AC,BD

F,E

S901HOME

S90412EJ

S9058EJ

LD+14

1LD

2PD

PA1/12SNS

PA4/CONT

PA6/LOEJ

PA0/HOME

36

35

41

39

VDD

PB1/VDCONT56

CD CONTROLLER

IC201PE5497B

54PC7/CDMUTE

2

VDD

9

BDATA,BSCK

VDD

15

5

FOCUS ACT.

TRACKING ACT.

FOP

TOP2

1 TOP

FOP

11VO1(-)

14VO2(+)

2

1

14

VDCONT

23

25

X201

XTAL

/XTAL

PA2/8SNS37

PA3/DSCSNS38

29RESET

8

10/RESET

CDMUTE

88VREF

REFO 93REFOUT

33FOM FOM

12VO1(+)

44TOM TOM

13VO2(-)

21CNT PA5/CLCONT

40

16.93MHz

Q102

VDD1212VCCVCC 42

PA7/CD3V

FD,TD

SD,MD

V+3A

TUN_Lch

CD_Lch

SYSTE

CN4011

2

CN651

TUNER AMP UNIT

LOUT

A

RDS

RD

RDS

RDS

TUN 3.3V

VCC(SYS 8V)

VDD

ANTENNA

TUNPDI

TUNPCK

TUNPDO

BRST,BRXEN,BSRQ

BDATA,BSCKCD VD

VD

VDCONT

IC962BD7802FP

CD 3V REGULATOR

1 3

5

19

12

10

13

11

B.UP

Q991

20

Q992

VDD

RESETNC

36

FM/AM TUNER UNIT

FMRF

ANT adjRF adj

FM ANT

T51 CF52

RFGND

OSCGND

DGND

AUDIOGND

NC

VCC

VDD_

3.3

3.3V 2.5V

IC 4

3.3V 2.5V

IC 2

2.5V

NC

CE2

ROM_

VDD

SL

DI

CK

CE1

LDET

DO

RDS_

CK

RDS_

DATA

RDS_

LOCK

RDS_

HSLK

7 6 13 5 10 9 8 11 14 18 19 20 21

1

3

2 12 15 2 2 16 4 17

IC 1

3.3V

AM ANT FMRF

ATT

LPFOSC

IC 3 EEPROM

5.0V

IC 5

5V 3.3V

ATT

MIXER, IF AMP DET, FM MPX,RDS DECODER

24

23

Rch

Lch


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5 6 7 8

FL-

FL+

RL-

RL+

3

9

11

12

10

1

6

2

BACK UP

GND

RR-

FR-

FL-

RL-

ACCGND

BACKUP

B.REM

ACC

B.REM

FUSE

10A

7

Rear_ L

IN1-L

IN2-L

1

IC151PML014A

ELECTRONIC VOLUME/SOURCE SELECTOR

TUN_Lch

2CD_Lch

6Front_ L

60

BSENS

ASENS

VDD

B.UP

63

64

48MUTE

23

21

3

5

FL-

FL+

RL-

RL+

BREM

ACC

RLIn12

22

4

POWER AMP

IC601(1/2)PE5517A

SYSTEM CONTROLLER

IC963BD4834G

IC302TDA7386(45W)

VDD

Q911

Q931

SYSPW

VDD

STBYMUTE

IC1801PD6340A

LCD DRIVER/KEY CONTROLLER

5

7

CN1801CN831Q801

KEYBOARD UN

VCK

,VDT

,VST

43SYSPW

Q452(1/2)

Q452(2/2)

MUTE

B.UP

Q821

18

20

DPDT

KYDT

LCD

MUTE

SYSTEM CONTROLLER

VDD REGULATOR

BACKUP SENSE

ACC SENSE

3

9

11

12

10

1

6

2

B

CN901

TUNPCE1

TUNPCE2

LDET

TUNPDI

R

ESET

TUNPDO

SL

56

55

11

61

12

76

TUNPCK13

TUNPDO

LDET

Q402

Q401

RDS_CK

RDS_DATA 57

RCK62

RDSLK58

RDS57K59

RDT

RDS_LOCK

RDS_HSLK

TUN3V

TUN 3V REG.

B.UP

SYS 8V REG.

TUNPDI

CE1

CE2

SL

TUNPCK

Q912

DALMON32

B.UP

6,20

6

4

8

3

5

7

6

4

8

3

SOURCE

5.1VSWVDD

SRC

DSENS

ILM

DPDT

KYDT

S1805SWVDD

21

66

DSENS65

ILMPW22

DPDT9

KYDT8

RLch

CN352

2

FLIn14

Q822

DSENS

SOURCE

SWVDD

BSENS

ASENS

X1

X2

70

X60112.58291MHz69

KEY DATAX0

X1

22

X18015MHz23

Q352

KEY MATRIX

EJECT

S1819S1829

BAND

S1820

AUDIO

S1818S1838

DISP/LOUD

S1826S1827

VOL-

S1807

CLOCK

S1809S1839

6ch/PAUSE

S1811

LOC

S1810

LEFT

S1813S1821

RIGHT

S1816S1824

4ch/RDM

S1812

UP

S1815S1823

DOWN

S1814S1822

5ch/RPT

S1802

BTB

S1803S1825

3ch

S1804

VOL+

S1801

2ch

S1806

RESET

IC601(2/2)PE5517A

IC901NJM2885DL1-33

SW5V

SOURCE

DPDT

KYDT

ILL

1ch

S1808

VCC

1 3

SWVDD

ILMPW

MUTE

1 2

49ANTPW

IC551TPD1018F

B.REMOTE

6 1

VCC(SYS 8V)

Q921

Q923

NC36


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3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

A a A b

A a A b

A ba

Large sizeSCH diagram

Guide page

Detailed page

Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or"ELECTRICAL PARTS LIST".

A-a

A

B CN1801

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

The>mark found on some component parts indicatesthe importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of

identical designation.

Symbol indicates a resistor.

No differentiation is made between chip resistors and

discrete resistors.

NOTE :

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and

discrete capacitors.

C CN702

FM/AMTUNERUNIT

CWE1957

CDRESET

SOURCE

STRKEY2


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A-b

CEK1208 10A

> BACKUPGND

RL

RL+

FL

FL+

B.REM

ACC

RR

RR+

FR

FR+

RR+

RR-

FR+

FR-

FL+

FL-

RL+

RL-

ACC

GND

B.REM

BACK

UP

>

A TUNER AMP UNIT

600H

STRKEY2


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D

F

A

B

E

A-a

A-b

A-a

A-a

A-b 1 2 3

C

CN702

FM/AMTUNERUNIT

CWE1957

SOURCE


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A

A4 5

B

CN1801

Decimalpointsforresistor

andcapacitorfixedvalues

areexpressedas:

2.2

2R2

0.022

R022

The>markfoundonsomecomponentpartsindicates

theimportanceofthesafetyfactorofthepart.

Therefore,whenreplacing,besuretousepartsof

identicaldesignation.

Symbolindicatesaresistor.

Nodifferentiationismade

betweenchipresistors

and

discreteresistors.

NOT

E:

Symbolindicatesacapacitor.

Nodifferentiationismade

betweenchipcapacito

rsand

discretecapacitors.

FM/AMT

CDRESET

STRKEY2


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D

F

A

B

E

A-a

A-b

A-b 1 2 3

CEK1208

10A

>

BACKUP

GND

B.REM

ACC

>

A

TUNERAMPUNIT

600H


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5 6 7 8

A4 5

CEK1208

10A

>

BACKUP

GND

RL

RL+

FL

FL+

B.REM

ACC

RR

RR+

FR

FR+

RR+

RR-

FR+

FR-

FL+

FL -

RL+

RL -

ACC

GND

B.

REM

BACK

UP

600H


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F

A

B

E

3.3 KEYBOARD UNIT

B

LCD DRIVER

B KEYBOARD UNIT


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D1803-1809,

D1812-1821,D

1823-1825:

SML-310VT(DEH-1800R/XN/EW)

SML-310PT(DEH-1820R/XN/EW)

TA

A CN


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D

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3.4 CD MECHANISM MODULE

C

CD CORE UNIT(S10.5)

PICKUP UNIT(P10.5)(SERVICE)

C

F

T

T

F

T

T

F

F

S

S

T

T

F

FT

F

F

T

S

S

C

C

F

T

F

F

T

T

S

C

S S C C

9

08

5

$

4

7

@

#

%

M1 CXC6742SPINDLE MOTOR

M2 CXC4026LOADING/CARRIAGE MOTOR

CD DRIVER

SWITCHES:CD CORE UNIT(S10.5) S901:HOME SWITCH..........ON-OFF S903:DSCSNS SWITCH......ON-OFF S904:12EJ SWITCH.............ON-OFF S905:8EJ SWITCH...............ON-OFF

The underlined indicates the switch position.


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ACN651

FTCS

FTCS

^

6

&

!

FSIGNAL LINE

FOCUS SERVO LINE

TRACKING SERVO LINE

CARRIAGE SERVO LINE

SPINDLE SERVO LINE

T

C

S

CD DSP


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1 2 3 4

1 2 3 4

C

D

F

A

B

E

-Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram.2. Reference voltage REFO1(1.65 V)

1DSCSNS28SNS312SNS4LOEJ

5 V/div

5 V/div

5 V/div

5 V/div

12 cm CD Loading operation

Ref.:GND

Mode:

Normal


5 V/div

5 V/div

5 V/div

5 V/div

500 ms/div

Ref.:GND

Mode:

Normal

1DSCSNS5CLCONT4LOEJ6VD

5 V/div

5 V/div

5 V/div

10 V/div

500 ms/div

12 cm CD Loading operation 8 cm CD Loading operation

Ref.:GND

Mode:

Normal

CD-DA Play operation

Ref.:

REFO

Mode:

Normal

Ref.:

REFO

Mode:

Normal

$MDX7SIN

2 V/div

500 mV/div

50 ms/div $MDX7SIN

2 V/div

500 mV/div

5 s/div

Spindle waveform during play operation

Ref.:

REFO

Mode:

Normal

0FIN#FE

500 mV/div

500 mV/div

Focus Search waveform

Ref.:

REFO

Mode:

TEST

%RFAGC@TE9TIN

1 V/div

500 mV/div

500 mV/div

500 s/div

Ref.:

REFO

Mode:

TEST

@TE%RFAGC

500 mV/div

500 mV/div

2 ms/div

Track Open waveform 1 Track Jump waveform

Ref.:

REFO

Mode:

TEST

7SIN8CIN9TIN

1 V/div

500 mV/div

500 mV/div

12 cm CD-DA setup operation after loading Source On setup operation

Ref.:

REFO

Mode:

Normal

@TE#FE

500 mV/div

500 mV/div

200 ms/div

Ref.:

REFO

Mode:

Normal

0FIN!RFOK (MONI_2)

7SIN

200 mV/div

2 V/div

2 V/div

500 ms/div

12 cm CD-DA Source On setup operation

Ref.:

REFO

Mode:

Normal

500 ms/div

200 ms/div

2 s/div

#FE0FIN@TE9TIN

500 mV/div

500 mV/div

500 mV/div

500 mV/div

20 ms/div

Spindle waveform during play operation

(Wider)


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DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

%RFAGC@TE9TIN

1 V/div

500 mV/div

500 mV/div

500 s/div

4 Tracks Jump waveform

Ref.:

REFO

Mode:

TEST

%RFAGC@TE9TIN

1 V/div

500 mV/div

500 mV/div

2 ms/div

Ref.:

REFO

Mode:

TEST

%RFAGC@TE9TIN

1 V/div

500 mV/div

500 mV/div

1 ms/div

10 Tracks Jump waveform 32 Tracks Jump waveform

Ref.:

REFO

Mode:

TEST

1DSCSNS5CLCONT4LOEJ

5 V/div

5 V/div

5 V/div

500 ms/div

12 cm CD Eject operation

Ref.:

GND

Mode:

Normal

Ref.:

REFO

Mode:

Normal

8 cm CD Eject operation Black dot(800 m) during play

Ref.:

GND

Mode:

Normal

%RFAGC@TE8CIN7SIN

1 V/div

1 V/div

500 mV/div

2 V/div

200 ms/div

Search operation(Outter to Inner)

Ref.:

REFO

Mode:

Normal


5 V/div

5 V/div

5 V/div

5 V/div

500 ms/di


5 V/div

5 V/div

5 V/div

5 V/div

500 ms/div

Ref.:

GND

Mode:

Normal

^LOUT&ROUT

1 V/div

1 V/div

200 s/div

Analog audio waveform 12 cm CD Eject operation

Ref.:

AGND

Mode:

Normal

%RFAGC9TIN@TE0FIN

1 V/div

1 V/div

1 V/div

1 V/div

500 s/div


26/60

DEH-1800R/XN/EW26

1 2 3 4

1 2 3 4

C

D

F

A

B

E

4. PCB CONNECTION DIAGRAM

4.1 TUNER AMP UNIT

A

A TUNER AMP UNIT

CapacitorConnector

P.C.Board Chip PartSIDE B

SIDE A

NOTE FOR PCB DIAGRAMS1.The parts mounted on this PCB

include all necessary parts for

several destination.

For further information for

respective destinations, be sure

to check with the schematic diagram.

2.Viewpoint of PCB diagrams

CN651

B CN1801

C CN702

CORD ASSY

3

2

1


27/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

SIDE

FRONT

FM/AMTUNERUNIT

ANTENNA JACKREAR OUTPUT

1 42 3

2

1


28/60

DEH-1800R/XN/EW28

1 2 3 4

1 2 3 4

C

D

F

A

B

E

A

A TUNER AMP UNIT

IC151


29/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

SIDE

IC963


30/60

DEH-1800R/XN/EW30

1 2 3 4

1 2 3 4

C

D

F

A

B

E

4.2 KEYBOARD UNIT

B

B KEYBOARD UNIT B KEYBOARD UNITSIDE A SIDE B

D1810

R1815

R1814

R1813

R1812

R1808 R1809

R1807

R1811

A CN831

VOL+

VOL-

EQ

T

ALOUD

1ch

2ch

3ch

4ch

5ch

6ch

LOC

LEFT

RIGH

T

EJECT

SOURCE

AUDIO

BAND


31/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8


32/60

DEH-1800R/XN/EW32

1 2 3 4

1 2 3 4

C

D

F

A

B

E

4.3 CD CORE UNIT(S10.5)

C

C CD CORE UNIT(S10.5) SIDE A

18

CN702

IC301

M2LOADING

/CARRIAGEMOTOR

M1SPINDLEMOTOR

FE

REFO1

PICKUP UNIT(P10.5)(SERVICE)

ACN651

HOME

123


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DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

C CD CORE UNIT(S10.5) SIDE

C103

C20

5

C709

C301 Q

102

Q103

Q101

12EJ 8EJ

DSCSNS


34/60

DEH-1800R/XN/EW34

1 2 3 4

1 2 3 4

C

D

F

A

B

E

5. ELECTRICAL PARTS LIST

NOTE:

Parts whose parts numbers are omitted are subject to being not supplied.

The part numbers shown below indicate chip components.

Chip Resistor

RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....)

CKS....., CCS....., CSZS.....The>mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

Meaning of the figures and others in the parentheses in the parts list.

Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding

PC board.

IC 301 (A, 91, 111) IC NJM2068V

Circuit Symbol and No. Part No.

Unit Number : CWN1268

Unit Name : Tuner Amp Unit

Unit Number: (DEH-1800R/XN/EW)

Unit Name : Keyboard Unit

Unit Number: (DEH-1820R/XN/EW)


Unit Number : CWX3090

Unit Name : CD Core Unit(S10.5)

AUnit Number : CWN1268Unit Name : Tuner Amp Unit

MISCELLANEOUS

IC 151 (B,133,80) IC PML014A

IC 302 (A,94,135) IC TDA7386

IC 551 (B,61,118) IC TPD1018F

IC 601 (B,87,62) IC PE5517A

IC 901 (B,143,29) IC NJM2885DL1-33

IC 962 (B,22,36) Regulator IC BD7802FP

IC 963 (B,62,83) IC BD4834G

Q 352 (B,160,129) Transistor UMH3N



Q 452 (B,139,128) Transistor UMD2N

Q 801 (B,80,29) Transistor 2SA1036K

Q 821 (B,43,15) Transistor 2SA1036K

Q 822 (B,31,17) Transistor DTC114EU

Q 911 (A,8,116) Transistor 2SD2396




Q 931 (B,61,107) Transistor UMX1N



D 551 (A,62,124) Diode MPG06G-6415G3

D 552 (A,59,124) Diode MPG06G-6415G3

D 901 (A,35,131) Diode MPG06G-6415G3

D 902 (A,35,128) Diode MPG06G-6415G3

D 911 (A,21,106) Diode MPG06G-6415G3

D 912 (A,18,120) Diode HZS6L(B2)

D 921 (A,24,87) Diode HZS9L(B3)

D 931 (A,69,115) Diode HZS7L(C3)

D 932 (A,54,108) Diode HZS7L(A1)

D 961 (A,56,74) Diode 1SS133

D 991 (A,20,66) Diode HZS7L(C3)

L 151 (A,146,93) Inductor LAU2R2K



L 404 (B,160,101) Inductor LCTAW220J2520

L 601 (A,93,85) Ferri-Inductor LAU100K

L 602 (A,103,67) Inductor LAU2R2KL 651 (A,41,38) Inductor LAU2R2K


L 901 (A,36,108) Choke Coil 600H CTH1280

X 601 (A,103,71) Radiator 12.58291MHz CSS1402

>FU352 (B,143,135) Fuse 3A CEK1286> Fuse 10A CEK1208AR401 (A,161,110) Surge Protector DSP-201M-S00B

FM/AM Tuner Unit CWE1951

RESISTORS

R 301 (B,93,104) RS1/16S153J

R 353 (B,144,128) RS1/16S821JR 354 (B,164,128) RS1/16S821J

R 357 (B,145,133) RS1/16S223J

R 358 (B,164,135) RS1/16S223J

R 401 (B,144,52) RAB4C223J

R 405 (B,155,62) RS1/16S681J

R 406 (B,160,81) RS1/16S681J

R 407 (B,159,87) RAB4C681J

R 408 (A,153,49) RD1/4PU331J

R 409 (B,123,44) RS1/16S331J

R 414 (B,159,91) RS1/16S681J

R 420 (B,99,48) RS1/16S681J

R 454 (B,135,127) RS1/16S103J



35/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

R 455 (B,140,130) RS1/16S153J

R 456 (B,140,133) RS1/16S221J

R 457 (B,99,50) RS1/16S681J

R 601 (B,100,58) RS1/16S473J

R 606 (B,111,61) RS1/16S104J

R 607 (B,107,61) RS1/16S222J

R 608 (B,106,74) RS1/16S0R0J

R 609 (B,102,43) RS1/16S473J

R 610 (B,99,52) RS1/16S681J

R 612 (B,106,57) RS1/16S103JR 613 (B,72,54) RS1/16S104J

R 633 (B,53,73) RS1/16S104J

R 650 (B,50,50) RS1/16S102J

R 651 (B,58,36) RS1/16S104J

R 652 (B,60,38) RS1/16S102J

R 655 (A,76,51) RD1/4PU102J

R 659 (B,84,43) RS1/16S221J

R 660 (B,93,46) RS1/16S681J

R 662 (B,102,40) RS1/16S682J

R 663 (B,81,43) RS1/16S682J

R 670 (B,76,54) RS1/16S104J

R 671 (B,79,43) RS1/16S104JR 801 (B,77,29) RS1/16S153J

R 802 (B,95,25) RS1/16S153J

R 803 (B,104,23) RS1/16S222J

R 821 (B,34,18) RS1/16S562J

R 822 (B,74,29) RS1/16S102J

R 823 (B,38,15) RS1/16S103J

R 833 (A,80,17) RD1/4PU222J

R 834 (A,82,17) RD1/4PU222J

R 835 (A,68,20) RD1/4PU102J

R 836 (A,72,26) RD1/4PU104J

R 837 (A,78,25) RD1/4PU103J

R 838 (B,89,89) RS1/16S102J

R 841 (B,52,15) RS1/16S1R0J

R 848 (A,105,46) RD1/4PU102J

R 851 (A,103,46) RD1/4PU102J

R 852 (B,91,89) RS1/16S102J

R 911 (B,11,124) RS1/16S183J

R 912 (A,8,131) RD1/4PU152J

R 913 (B,18,110) RS1/16S0R0J

R 923 (A,19,90) RD1/4PU821J

R 931 (B,65,112) RS1/16S473J

R 932 (B,65,110) RS1/16S104J

R 933 (A,55,116) RD1/4PU102J

R 934 (B,61,110) RS1/16S473J

R 935 (B,55,106) RS1/16S473J

R 936 (B,57,110) RS1/16S223J

R 940 (B,86,81) RS1/16S104J

R 941 (B,89,81) RS1/16S104J

R 961 (B,67,78) RS1/16S102J

R 962 (B,62,78) RS1/16S183J

R 991 (A,20,61) RD1/4PU271J

R 992 (A,15,68) RD1/4PU221J

CAPACITORS

C 151 (B,160,73) CKSRYB224K10

C 152 (B,160,75) CKSRYB224K10

C 153 (B,130,69) CKSRYB105K6R3


C 154 (B,142,74) CKSRYB105K6R3

C 165 (B,136,91) CKSRYB104K16

C 166 (A,134,92) CEJQ470M10

C 167 (A,128,92) CEJQ100M16

C 301 (B,119,108) CKSQYB474K16

C 302 (B,128,111) CKSQYB474K16

C 303 (B,131,122) CKSQYB474K16

C 304 (B,123,107) CKSQYB474K16

C 305 (B,119,113) CKSRYB474K10

C 306 (B,131,114) CKSRYB474K10C 307 (B,134,124) CKSRYB474K10

C 308 (B,126,109) CKSRYB474K10

C 309 (B,136,132) CKSQYB225K10

C 310 (B,137,136) CKSQYB225K10

C 311 (A,97,122) CEJQ2R2M50

C 312 (A,104,125) CEJQ100M16

C 313 (B,100,142) CKSRYB104K16

C 353 (A,134,120) CEJQ2R2M50

C 354 (A,134,110) CEJQ2R2M50

C 401 (B,160,69) CKSRYB103K50

C 403 (A,151,58) CEJQ470M6R3

C 404 (A,151,95) CEJQ101M10

C 405 (B,167,97) CKSRYB103K50

C 407 (B,159,60) CKSQYB475K6R3

C 409 (B,147,56) CCSRCH470J50

C 420 (B,108,43) CCSRCH470J50

C 451 (A,132,132) CEJQ330M10

C 551 (B,68,120) CKSRYB103K50

C 552 (B,65,123) CKSRYB103K50

C 601 (B,69,83) CKSRYB103K50

C 604 (B,98,75) CCSRCH200J50

C 605 (B,102,75) CCSRCH200J50

C 606 (B,109,71) CKSRYB104K16

C 608 (B,91,48) CCSRCH101J50

C 610 (A,101,82) CEJQ4R7M35

C 611 (B,96,80) CKSRYB224K10

C 612 (B,89,75) CCSRCH470J50

C 651 (B,42,40) CKSRYB105K10

C 670 (B,44,42) CCSRCH221J50

C 801 (B,104,25) CKSRYB105K6R3

C 832 (B,49,13) CKSRYB104K16

C 901 (A,36,140) CEAT332M16(P45

C 911 (A,16,96) CEJQ470M10

C 912 (B,12,133) CKSRYB103K50

C 913 (A,19,137) CEAT102M16

C 921 (A,25,66) 330F/16V CCH1326

C 922 (A,24,82) CEJQ101M16

C 923 (B,23,85) CKSRYB103K50

C 961 (B,56,85) CKSRYB473K50

C 962 (B,60,75) CKSRYB105K6R3

C 964 (A,25,29) CEJQ220M10

C 965 (B,28,27) CKSRYB105K10

C 981 (B,135,25) CKSRYB334K10

C 983 (A,144,38) CEJQ470M10

C 991 (B,17,63) CKSRYB473K50

C 992 (A,17,54) CEJQ101M10

BUnit Number: (DEH-1800R/XN/EW)



36/60

DEH-1800R/XN/EW36

1 2 3 4

1 2 3 4

C

D

F

A

B

E


MISCELLANEOUS

IC 1801 (B,32,100) IC PD6340A

D 1803 (A,43,67) LED SML-310VT

D 1804 (A,43,79) LED SML-310VT

D 1805 (A,43,91) LED SML-310VT

D 1806 (A,28,29) LED SML-310VT

D 1807 (A,43,39) LED SML-310VTD 1808 (A,43,55) LED SML-310VT

D 1809 (A,28,42) LED SML-310VT

D 1810 (A,29,50) LED NESW505C-5273

D 1812 (A,17,12) LED SML-310VT

D 1813 (A,31,12) LED SML-310VT

D 1814 (A,12,154) LED SML-310VT

D 1815 (A,17,168) LED SML-310VT

D 1816 (A,31,168) LED SML-310VT

D 1817 (A,43,127) LED SML-310VT

D 1818 (A,43,115) LED SML-310VT

D 1819 (A,43,103) LED SML-310VT

D 1820 (A,28,136) LED SML-310VT

D 1821 (A,22,144) LED SML-310VT

D 1823 (A,42,140) LED SML-310VT

D 1824 (A,33,144) LED SML-310VT

D 1825 (A,28,152) LED SML-310VT

X 1801 (B,39,90) Ceramic Resonator 5.00MHz CSS1547

LCD CAW1900

RESISTORS

R 1801 (B,28,66) RS1/16S222J

R 1802 (B,30,66) RS1/16S222J

R 1807 (B,27,29) RS1/4SA471J

R 1808 (B,31,42) RS1/4SA471J

R 1809 (B,24,42) RS1/4SA681J

R 1810 (B,42,98) RS1/16S104J

R 1811 (B,21,29) RS1/4SA681J

R 1812 (B,30,123) RS1/4SA471J

R 1813 (B,35,128) RS1/4SA471J

R 1814 (B,32,133) RS1/4SA681J

R 1815 (B,40,136) RS1/4SA471J

CAPACITORS

C 1801 (B,42,102) CKSRYB103K50

C 1802 (A,28,45) CKSRYF104Z25

BUnit Number: (DEH-1820R/XN/EW)Unit Name : Keyboard Unit

MISCELLANEOUS

IC 1801 (B,32,100) IC PD6340A

D 1803 (A,43,67) LED SML-310PT

D 1804 (A,43,79) LED SML-310PT

D 1805 (A,43,91) LED SML-310PT

D 1806 (A,28,29) LED SML-310PT

D 1807 (A,43,39) LED SML-310PT

D 1808 (A,43,55) LED SML-310PT

D 1809 (A,28,42) LED SML-310PT


D 1810 (A,29,50) LED NESW505C-5273

D 1812 (A,17,12) LED SML-310PT

D 1813 (A,31,12) LED SML-310PT

D 1814 (A,12,154) LED SML-310PT

D 1815 (A,17,168) LED SML-310PT

D 1816 (A,31,168) LED SML-310PT

D 1817 (A,43,127) LED SML-310PT

D 1818 (A,43,115) LED SML-310PT

D 1819 (A,43,103) LED SML-310PT

D 1820 (A,28,136) LED SML-310PTD 1821 (A,22,144) LED SML-310PT

D 1823 (A,42,140) LED SML-310PT

D 1824 (A,33,144) LED SML-310PT

D 1825 (A,28,152) LED SML-310PT

X 1801 (B,39,90) Ceramic Resonator 5.00MHz CSS1547

LCD CAW1900

RESISTORS

R 1801 (B,28,66) RS1/16S222J

R 1802 (B,30,66) RS1/16S222J

R 1807 (B,27,29) RS1/4SA471J

R 1808 (B,31,42) RS1/4SA471J

R 1809 (B,24,42) RS1/4SA681J

R 1810 (B,42,98) RS1/16S104J

R 1811 (B,21,29) RS1/4SA681J

R 1812 (B,30,123) RS1/4SA471J

R 1813 (B,35,128) RS1/4SA471J

R 1814 (B,32,133) RS1/4SA681J

R 1815 (B,40,136) RS1/4SA471J

CAPACITORS

C 1801 (B,42,102) CKSRYB103K50

C 1802 (A,28,45) CKSRYF104Z25

CUnit Number : CWX3090Unit Name : CD Core Unit(S10.5)

MISCELLANEOUS

IC 201 (A,39,54) IC PE5497B

IC 301 (A,33,18) IC BA5839FP

Q 101 (B,62,75) Transistor 2SA1577

Q 102 (B,20,28) Chip Transistor 2SB1689

X 201 (A,32,66) Ceramic Resonator 16.934MHz CSS1603

S 901 (A,58,41) Switch(HOME) CSN1067

S 903 (B,25,62) Switch(DSCSNS) CSN1067S 904 (B,44,71) Switch(12EJ) CSN1068

S 905 (B,30,72) Switch(8EJ) CSN1068

RESISTORS

R 101 (B,62,77) RS1/10SR2R4J

R 102 (B,65,77) RS1/10SR2R4J

R 103 (B,65,75) RS1/10SR2R7J

R 105 (B,19,31) RS1/16SS102J

R 106 (B,20,30) RS1/16SS473J

R 108 (B,63,68) RS1/16SS105J

R 109 (B,49,64) RS1/16SS102J

R 214 (A,48,45) RS1/16SS332J



37/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

R 215 (A,47,44) RS1/16SS183J

R 216 (A,50,52) RS1/16SS122J

R 217 (A,52,50) RS1/16SS562J

R 218 (A,52,53) RS1/16SS472J

R 232 (A,29,63) RS1/16SS0R0J

R 235 (A,41,34) RS1/16SS103J

R 236 (A,41,33) RS1/16SS103J

R 237 (B,29,51) RS1/16SS221J

R 240 (B,25,48) RS1/16SS473J

R 242 (A,33,36) RS1/16SS103JR 243 (A,32,36) RS1/16SS473J

R 245 (B,28,54) RS1/16SS104J

R 246 (A,49,43) RS1/16SS103J

R 252 (B,28,56) RS1/16SS104J

R 253 (B,28,55) RS1/16SS104J

R 254 (B,36,52) RS1/16SS104J

R 260 (B,26,44) RS1/16SS103J

R 262 (A,41,35) RS1/16SS472J

R 263 (A,41,32) RS1/16SS472J

R 264 (B,31,35) RS1/16SS102J

R 305 (A,39,24) RS1/16SS183J

R 306 (A,42,24) RS1/16SS183J

R 307 (A,40,26) RS1/16SS183J

R 308 (A,43,27) RS1/16SS183J

R 601 (A,38,72) RS1/16SS101J

R 602 (A,37,70) RS1/16SS101J

R 702 (A,27,45) RS1/16SS221J

R 706 (B,17,39) RS1/16SS221J

CAPACITORS

C 103 (B,59,68) CEVW101M16

C 203 (A,40,65) CKSSYB104K10

C 205 (B,48,55) CEVW220M6R3

C 206 (A,37,64) CKSSYB103K16

C 209 (A,33,64) CKSRYB104K16

C 210 (A,29,60) CKSSYB104K10

C 211 (A,29,59) CKSSYB104K10

C 212 (A,39,44) CKSSYB104K10

C 213 (A,48,43) CKSSYB103K16

C 214 (A,47,43) CKSSYB104K10

C 215 (A,43,45) CKSSYB104K10

C 216 (A,52,47) CKSSYB182K50

C 217 (A,52,52) CCSSCH560J50

C 218 (A,52,54) CCSSCH5R0C50

C 219 (A,48,51) CKSSYB104K10

C 220 (B,44,49) CKSSYB104K10

C 221 (A,48,48) CKSSYB104K10

C 222 (A,49,54) CKSSYB104K10

C 223 (A,51,58) CCSSCH680J50

C 224 (A,49,61) CCSSCH470J50

C 225 (A,49,64) CKSSYB103K16

C 229 (B,51,59) CKSSYB104K10

C 231 (B,38,37) CKSSYB102K50

C 232 (B,37,34) CKSSYB102K50

C 233 (B,31,55) CKSSYB103K16

C 236 (B,43,58) CKSSYB104K10

C 238 (A,39,70) CKSRYB104K16

C 240 (A,39,68) CKSRYB104K16

C 304 (A,40,24) CKSSYB472K25


C 305 (A,41,26) CKSSYB103K16

C 306 (A,26,14) CKSRYB105K10

C 705 (B,14,39) CCSSCH101J50

C 710 (B,15,37) CKSSYB102K50

Miscellaneous Parts List

Pickup Unit(P10.5)(Service) CXX1942

M 1 Motor Unit(SPINDLE) CXC6742

M 2 Motor Unit(LOADING/CARRIAGE) CXC4026



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6. ADJUSTMENT6.1 CD ADJUSTMENT

1) Cautions on adjustments

In this product the single voltage (3.3V) is used for the

regulator. The reference voltage is the REFO1 (1.65V)

instead of the GND.

If you should mistakenly short the REFO1 with the GND

during adjustment, accurate voltage will not be obtained,

and the servos misoperation will apply excessive shockto the pickup. To avoid such problems:

a. Do not mix up the REFO1 with the GND when

connecting the (-) probe of measuring instruments.

Especially on an oscilloscope, avoid connecting the (-)

probe for CH1 to the GND.

b. In many cases, measuring instruments have the same

potential as that for the (-) probe. Be sure to set the

measuring instruments to the floating state.

c. If you have mistakenly connected the REFO1 to the GND,

turn off the regulator or the power immediately.

Before mounting and removing filters or leads for

adjustment, be sure to turn off the regulator.

For stable circuit operation, keep the mechanism

operating for about one minute or more after the

regulator is turned on.

In the test mode, any software protections will not

work. Avoid applying any mechanical or electrical

shock to the mechanism during adjustment.

The RFI and RFO signals with a wide frequency range

are easy to oscillate. When observing the signals,

insert a resistor of 1k ohms in series.

The load and eject operation is not guarantied with themechanism upside down. If the mechanism is blocked

due to mistaken eject operation, reset the product or

turn off and on the ACC to restore it.

2) Test mode

This mode is used to adjust the CD mechanism module.

To enter the test mode.

While pressing the 4 and 6 keys at the same time, reset.

To exit from the test mode.

Turn off the ACC and back up.

Notes:

a. During ejection, do not press any other keys than the

EJECT key until the loaded disc is ejected.

b. If you have pressed the () key or () key during focus

search, turn off the power immediately to protect the

actuator from damage caused by the lens stuck.

c. For the TR jump modes except 100TR, the track jump

operation will continue even if the key is released.

d. For the CRG move and 100TR jump modes, the tracking

loop will be closed at the same time when the key is

released.

e. When the power is turned off and on, the jump mode

is reset to the single TR (91), the RF amp gain is set to 0dB,

and the auto-adjustment values are reset to the default

settings.


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5 6 7 8

[Key]

Contents

Display

[4] + [6] + Reset or

[4] + [6] + BU + ACC

Test Mode In

[CD] or [SOURCE]

Source On

TRK MIN SEC

Power On Power On(T.Offset is adjusted)

TRK MIN SEC

00 00 00

[3]

(T.Offset is not adjusted)

99 99 99

[2]

RF AMP

Gain switching

GG GG GG

*1[4]

SPINDLE

Speed switching

SP SP SP

[3]

Focus Close

S curve check

91 91 91

[6]

Focus Mode

switching

0X 0X 0X

*2

[1]

Tracking Servo

Close

00 00 00or 99 99 99

00 00 00or 99 99 99

00 00 00or 99 99 99

[>]

CRG +

[2]

Self-adjusting

switching *3*8

[]

CRG +

8X 8X 8Xor 9X 9X 9X

8X 8X 8Xor 9X 9X 9X

[]

CRG/TR Jump +

[] CRG + / TR Jump +

(Direction Of the external surface)

[


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6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT

REFO1E

F

Note :The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism

module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU

unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the

PU unit must be changed, the grating should be checked using the procedure below.

Purpose :To check that the grating is within an acceptable range when the PU unit is changed.

Symptoms of Mal-adjustment :If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform

track search operations, or taking a long time for track searching.

Method :

Measuring Equipment

Measuring Points

Oscilloscope, Two L.P.F.

E, F, REFO1

Disc TCD-782

Mode TEST MODE

Checking Procedure1. In test mode, load the disc and switch the 3V regulator on.

2. Using the and buttons, move the PU unit to the innermost track.

3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance

adjustment the display should now read "81". Press key 3. The display will change, returning to "81" on the

fourth press.

4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase

difference is within 75. Refer to the photographs supplied to determine the phase angle.

5. If the phase difference is determined to be greater than 75try changing the PU unit to see if there is any

improvement. If, after trying this a number of times, the grating angle does not become less than 75then the

mechanism should be judged to be at fault.NoteBecause of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be

seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the

average angle.

HintReloading the disc changes the clamp position and may decrease the "wobble".

100k

390pF

100k

390pF

E

VREF

F

VREF

Xch Ych

L.P.F.

L.P.F.

Oscilloscope

CD CORE UNIT(S10.5)


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DEH-1800R/XN/EW

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5 6 7 8

Grating waveform

45

0

75

60

30

90

Ech Xch 20mV/div, AC

Fch Ych 20mV/div, AC


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6.3 ERROR MODE

-Error Messages

If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of

the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from

the users and also for facilitating trouble analysis and repair work in servicing.

(1) Basic Indication Method

1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN

(minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNOremains in blank as before.

2) Head unit display examples

Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.

8-digit display 6-digit display 4-digit display

ERRORxx ERRxx Exx

(2) Error Code List

Code Class Displayed error code Description of the code and potential cause(s)

10 Electricity Carriage Home NG CRG can't be moved to inner diameter.

SERVO LSI Com- CRG can't be moved from inner diameter.

munication Error Failure on home switch or CRG move mechanism.

Communication error between microcomputer and SERVO LSI.

11 Electricity Focus Servo NG Focusing not available.

Stains on rear side of disc or excessive vibrations on REWRITABLE.

12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).

Subcode NG Failure on spindle, stains or damages on disc, or excessive vibrations.

A disc not containing CD-R data is found.

Turned over disc are found, though rarely.

CD signal error.

17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.

Damages or stains on disc, or excessive vibrations on REWRITABLE.

30 Electricity Search Time Out Failed to reach target address.

CRG tracking error or damages on disc.

44 Electricity ALL Skip Skip setting for all track.

(CD-R/RW)

50 Mechanism CD On Mech Error Mechanical error during CD ON.

Defective loading motor, mechanical lock and mechanical sensor.

A0 System Power Supply NG Power (VD) is ground faulted.

Failure on SW transistor or power supply (failure on connector).

Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).

Unreadable TOC does not constitute an error. An intended operation continues in this case.

Upper digits of an error code are subdivided as shown below:

1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.


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7. GENERAL INFORMATION7.1 DIAGNOSIS7.1.1 DISASSEMBLY

- Removing the CD Mechanism Module (Fig.1)

1

Fig

- Removing the Case (not shown)

Grille Assy

- Removing the Grille Assy (Fig.1)

1. Remove the Case.

CD Mechanism Module

1

1

1

1

FigTuner Amp Unit

- Removing the Tuner Amp Unit (Fig.2)

Remove the screw.1

Remove the four screws.

Disconnect the connector and then remove the

CD Mechanism Module.

2 Release the two latchs and then remove

the Grille Assy.

2 2

1

2 22

3 33

Remove the three screws.2

Straighten the tabs at three locations

indicated and then remove

the Tuner Amp Unit.

3


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D

F

A

B

E

A

A

B

B

Upper Frame

Lower Frame

B

B

B

B

a

Damper

Carriage Mechanism

Damper

Do not squeeze this area.

-How to hold the Mechanism Unit

-Removing the Upper and Lower Frames1. With a disc inserted and clamped in the

mechanism, remove the two Springs (A),

the six Springs (B), and the four Screws.2. Turn the Upper Frame using the part "a" as

a pivot, and remove the Upper Frame.

3. While lifting the Carriage Mechanism,

remove it from the three Dampers.

Caution: When assembling, be sure to apply

some alcohol to the Dampers and assemble

the mechanism in a clamped state.

1. Hold the Upper and Lower Frames.

2. Do not hold the front portion of the Upper

Frame, because it is not very solid.


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Screw

Shorting Solder

CD Core Unit

Solder

Chassis

Pickup Rack

Pickup

Poly Washer Change Arm

Pickup Lock Arm

Feed Screw

Planet Gear

Inner Holder

-How to remove the CD Core Unit1. Apply Shorting Solder to the flexible cable of

the Pickup, and disconnect it from the

connector.

2. Unsolder the four leads, and loosen the

Screw.

3. Remove the CD Core Unit.

Caution: When assembling the CD Core Unit,

assemble it with the SW in a clamped state

so as not to damage it.

-How to remove the Pickup Unit1. Make the system in the carriage mechanism mode, and have it clamped.

2. Remove the CD Core Unit and remove the leads from the Inner Holder.3. Remove the Poly Washer, Change Arm, and Pickup Lock Arm.

4. While releasing from the hook of the Inner Holder, lift the end of the Feed Screw.

Caution: When assembling, move the Planet Gear to the load/eject position before setting the Feed Screw in the Inner

Holder.

Assemble the sub unit side of the Pickup, taking the plate (Chassis) in-between. When treating the leads of the Load

Carriage Motor Assy, do not make them loose over the Feed Screw.


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7.1.2 CONNECTOR FUNCTION DESCRIPTION

Pin No.

1

2

3

4

5

6

78

B.UP

GND

ACC

NC

NC

B.REMOTE

NCNC

Pin No.

9

10

11

12

13

14

1516

RL-

FL-

RL+

FL+

RR-

FR-

RR+FR+

16 2115

14

13

12

11

10

9

8

7

6

5

4

3

REAR OUTPUTANTENNA JACK


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7.2 PARTS7.2.1 IC

-Pin Functions (PE5517A)Pin No. Pin Name I/O Function and Operation

1

2,3

4

5,6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23-31

32

33

34

35

36

37

38

39

40

41,42

43

44-46

4748

49

50

51

52

53

54

55

56

57

58

59

60

6162

63

64

65

66

67

68

MODEL1

NC

AVSS

NC

AREF1

KYDT

DPDT

NC

TUNPDI

TUNPDO

TUNPCK

PCL

TESTIN

BSI

BDATA

BSCK

DORAON

NC

swvdd

ILMPW

NC

DALMON

VSS

BRST

BRXEN

CDRESET

ROMDATA

ROMCLK

ROMCS

RECEIVE

NC

SYSPW

NC

STRKEY2MUTE

ANTPW

NC

VST

VDT

VCK

NC

TUNPCE2

TUNPCE

RDT

RDSLK

RDS57K

RESET

LDETRCK

asens

bsens

dsens

source

VSS

VDD

I

I

O

I

O

O

O

I

I

O

O

O

O

O

O

I/O

O

O

O

O

O

O

IO

O

O

O

O

O

O

I

I

I

II

I

I

I

I

Model select input

Not used

GND

Not used

VDD

Display microcomputer data input

Display microcomputer communication data outputNot used

PLL data input

PLL data output

PLL clock output

Clock adjustment output

Test program input

Bus serial data input

Bus serial output data

Bus serial clock output

Not used

Not used

Display microcomputer chip select output

Illumination power output

Not used

Output for dark current reduction circuit / Stand-by mode : L output

GND

Bus reset output

Bus RX enable input/output

CD microcomputer reset signal output

ROM collection data output

ROM collection clock output

ROM collection chip select output

RDS decoder receiving output

Not used

System power output

Not used

Wired remote control input 2System mute output

Auto antenna control output

Not used

E.VOL strobe output

E.VOL data output

E.VOL clock output

Not used

PLL chip enable output 2

PLL chip enable output

RDS LK input

RDS clock input

RDS 57K input

Reset

PLL lock detection inputRDS clock input

ACC sense input

Back up sense input

Grille detach sense input

Source sense input

GND

VDD


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E

20 41

601

*PE5517A

40

61

80

21

69,70

71

72

73

74

75

76

77,78

79

80

X2,1

IC(VPP)

NC

VSS

AVDD

AVREF1

SL

NC

BSRQ

STRKEY1

I

I

I

Crystal oscillator connection pin

GND

Not used

VSS

VDD

VDD

Signal level input

Not used

Bus slave service request

Wired remote control input 1

Pin No. Pin Name I/O Function and Operation

IC's marked by * are MOS type.

Be careful in handling them because they are very

liable to be damaged by electrostatic induction.


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5 6 7 8

-Pin Layout

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

IN1_L

IN2_L

IN3_L

IN4+_L

IN4-_L

Front_L

Rear_L

Vcc

Vref

GND

IN1_

IN2_

IN3_

IN4+

IN4-

Fron

Rea

STB

CLK

DAT

-Block Diagram

Isolator

Isolator

Auto

Zero

Gain

Adjuster

InputSelectorTRE

BASS

LOUDNESS

Secondary

Vo

lume

Front_R

Rear_R

Front_L

Rear_L

Anti-Radiation

Filter

Anti-Alias

Filter

Primary

Volume

Digital

Block

IN1

_L

IN2

_L

IN3

_L

IN4+_

L

IN4-_L

IN4-_R

IN4+_

R

IN3

_R

IN2

_R

IN1

_R

STB

DATA

CLK

GND

Vcc

Vref

MID

Secondary

Vo

lumeS

upply

&

Reference

Secondary

Vo

lume

Secondary

Vo

lume

PML014A


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A

B

E

NJM2885DL1-33 BD7802FP

IN

1

GND

2

OUT

3

BandgapReference

ThermalProtection

+

-

-

+

Vref

321

OUTNCVCC

Driver

OCPTSD

- Pin Functions(PD6340A)Pin No. Pin Name I/O Function and Operation1-5 SEG4-0 O LCD segment output

6-9 COM3-0 O LCD common output

10 VLCD LCD drive power supply

11-14 KST3-0 O Key strobe output

15,16 KDT0,1 I Key data input (analogue input)

17 REW I Remote control reception input

18 DPDT I Display data input

19 NC Not used

20 KYDT O Key data output

21 MODA GND

22 X0 Crystal oscillator connection pin

23 X1 Crystal oscillator connection pin

24 VSS GND25,26 KDT2,3 I Key data input

27 NC Not used

28 KST4 O Key strobe output

29-32 NC Not used

33-55 SEG35-13 O LCD segment output

56 VDD Power supply

57-64 SEG12-5 O LCD segment output

* PD6340A

49

48

33

32

17

16

1

64


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-Pin Functions (PE5497B)

1

2

3

4

5

6

7

8

910

11

12

13

14

15

16

17

18

19

20

21

22

2324

25

26

27

28

29

30

31

32

33

34

35-42

43

4445

46

47-54

55-62

63

64

65

66

67

68

69

70

71

72

73

LD

PD

rst

INTQ

A0

stb

sck

SO

SID.VDD

D.GND

REG16

REGS

DA.VDD

ROUT

DA.GND

REGC

DA.GND

LOUT

DA.VDD

ICEMD

X.VDD

xtalX.GND

XTAL

VPP

C.VDD

C.GND

RESET

IO.GND

IO.VDD

ICECK

INT0

INT2

PA0-7

DOUT

SCKOLRCK

TX/EMPH

PC0-7

PB0-7

SD2

IO.GND

IO.VDD

FD

TD

SD

MD

TEST

AD.GND

AD.VDD

EFM

O

I

I

O

I

I

I

O

I

O

O

I

O

I

I

I

O

I

I

I/O

O

OO

O

I/O

I/O

O

O

O

O

O

I

O

Laser diode control current output

Photo diode signal (for detecting laser power) input

Reset (CD block)

Interrupt

Address 0

Strobe

Serial clock

Serial data output

Serial data inputPower supply for digital circuits

Ground for digital circuits

Capacitor connection for regulator (logic)

Capacitor connection for regulator (SRAM)

Power supply for Audio-DAC

R-channel audio signal output

Ground for Audio-DAC

Capacitor connection for regulator (RF amp.)

Ground for Audio-DAC

L-channel audio signal output

Power supply for Audio-DAC

Selected to ICE

Power supply for the crystal oscillator

Crystal connectionGround for the crystal oscillator

Crystal connection

Programming power supply

Power supply for digital circuits(Power supply for the CPU)

Ground for digital circuits(Ground for the CPU)

Reset

Ground for the digital port

Power supply for the digital port

Clock for ICE

Interrupt

Interrupt

General port A

Data output (audio)

Serial clock output (audio)LR clock (audio)

Transmit data/Emphasis information output

General port C

General port B

Sled drive

Ground for the digital port

Power supply for the digital port

Focus drive output (PWM)

Tracking drive

Sled drive

Motor drive output (PWM)

Test

Ground for the A/D converter

Power supply for the A/D converterEFM signal

Pin No. Pin Name I/O Function and Operation


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25 51

751

* PE5497B

50

76

100

26

I/O Function and Operation

74

75

76

77

78

79

80

81

82

8384

85

86

87

88

89

90

91

92

93

94

95

96

9798

99

100

ASY

ATEST

A.VDD

A.GND

RFI

AGCO

C3T

AGCI

RFO

EQ2EQ1

RF2-

RF-

A.GND

A.VDD

A

B

F

E

REFOUT

FE-

FEO

ADCIN

TE-TEO

TE2

TEC

I

O

I

O

I

O

I

I

I

I

I

I

O

I

O

I

IO

O

I

Slice level

Analog test

Power supply for the analog system

Ground for the analog system

RF signal input

AGC amp output

Capacitance connection for 3T signal detecting circuit

AGC amp input

RF amp output

Equalizer parts connection for RF ampEqualizer parts connection for RF amp

Impedance connection to RF amp for negative feedback

Impedance connection to RF amp for negative feedback

Ground for the analog system

Power supply for the analog system

Error signal input

Error signal input

Error signal input

Error signal input

Reference output

Impedance connection to focus error amp for negative feedback

Focus error amp output

A/D converter input

Impedance connection to tracking error amp for negative feedbackTracking error amp output

Tracking error amp output multiplied by two

Tracking error comparator

Pin No. Pin Name


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5 6 7 8

-Pin Functions(BA5839FP) Pin No. Pin Name Function and Operation

1 VR Input pin for reference voltage

2 OPIN2(+) Input pin for non-inverting input for CH2 preamplifier

3 OPIN2(-) Input pin for inverting input for CH2 preamplifier

4 OPOUT2 Output pin for CH2 preamplifier


6 OPIN1(-) Input pin for inverting input from CH1 preamplifier

7 OPOUT1 Output pin for CH1 preamplifier

8 GND Ground pin

9 MUTE Mute control pin 10 POWVCC1 Power supply pin for CH1, CH2, and CH3 at "Power" stage

11 VO1(-) Driver CH1 - Negative output

12 VO1(+) Driver CH2 - Positive output







19 POWVCC2 Power supply pin for CH4 at "Power" stage

20 GND Ground pin

21 CNT Control pin

22 LDIN Loading input

23 OPOUTSL Output pin for preamplifier for thread

24 OPINLSL Input pin for preamplifier for thread

25 OPOUT3 CH3 preamplifier output pin

26 OPIN3(-) Input pin for inverting input for CH3 preamplifier


28 PREVCC PreVcc

BA5839FP

114

15 28


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No. Symbol I/O Explain

1 AMANT I AM antenna input AM antenna input high impedance AMANT pin is connected with

an all antenna by way of 4.7H. (LAU type inductor) A series circuit

including an inductor and a resistor is connected with RF ground for

the countermeasure against the hum of power transmission line.

2 RFGND RF ground Ground of antenna block

3 FMANT I FM antenna input Input of FM antenna 75 Surge absorber(DSP-201M-S00B) is necessary.

4 VCC power supply The power supply for analog block. D.C 8.4V 0.3V

5 SL O signal level Output of FM/AM signals level

6 CE2 I chip enable-2 Chip enable for EEPROM Lowactive

7 NC non connection Not used

8 CE1 I chip enable-1 Chip enable for AFRF Highactive

9 CK I clock Clock10 DI I data in Data input

11 LDET O lock detector Lowactive

12 OSCGND osc ground Ground of oscillator block

13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of

micro computer.

14 DO O data out Data output

15 DGND digital ground Ground of digital block

16 NC non connection Not used

17 VDD_3.3 power supply The power supply for digital block. 3.3V 0.2V

18 RDS_CK O RDS clock Output of RDS clock(2.5V)

19 RDS_DATA O RDS data Output of RDS data(2.5V)

20 RDS_LOCK O RDS lock Output unit Highactive(2.5V) (RDS_LOCK turns over by the

external transistor. Lowactive)

21 RDS_HSLK O RDS high speed Output unit Highactive(2.5V)(RDS_HSLK turns over by thelock external transistor. Lowactive)

22 AUDIOGND audio ground Ground of audio block

23 L ch O L channel output FM stereo L-chsignal output or AM audio output

24 R ch O R channel output FM stereo R-chsignal output or AM audio output

FMRF

ANT adjRF adj

FM ANT

T51 CF52

RFGND

OSCGND

DGND

AUDIOGND

NC

VCC

VDD_

3.3

3.3V 2.5V

IC 4

3.3V 2.5V

IC 2

2.5V

NC

CE2

ROM_

VDD

SL

DI

CK

CE1

LDET

DO

RDS_

CK

RDS_

DATA

RDS_

LOCK

RDS_

HSLK

7 6 13 5 10 9 8 11 14 18 19 20 21

1

3

2 12 15 2 2 16 4 17

IC 1

3.3V

AM ANT FMRFATT

LPFOSC

IC 3 EEPROM

5.0V

IC 5

5V 3.3V

ATT

MIXER, IF AMP DET, FM MPX,RDS DECODER

24

23

Rch

Lch

- FM/AM Tuner Unit


55/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

7.2.2 DISPLAY

- LCD(CAW1900)

SEGMENT

COMMON


56/60

DEH-1800R/XN/EW56

1 2 3 4

1 2 3 4

C

D

F

A

B

E

7.3 OPERATIONAL FLOW CHART

AREF1, VDD, AVDD, AVREF1=5 V

Pin 7, 68, 74, 75

Power ON

bsens=L

asens=L

bsens

Pin 64

asens

Pin 63

swvddL

Pin 21

Source keys

operative

Completes power-on operation.(After that, proceed to each source operation.)

SYSPWH

Pin 43

Starts communication with Grille microcomputer.

Source ON

300 ms

300 ms

In case of the above signal, the communication

with Grille microcomputer may fail.

If the time interval is not 300 msec, the oscillator

may be defective.


57/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8

8. OPERATIONS


58/60

DEH-1800R/XN/EW58

1 2 3 4

1 2 3 4

C

D

F

A

B

E

About the fixing screws for the front panel

If you do not operate the Detaching and Replacing

the Front Panel Function, use the supplied fixing

screws and fix the front panel to this unit.

Fixing screw

(CBA1994)

Fixing screw

(CBA1994)


59/60

DEH-1800R/XN/EW

5 6 7 8

5 6 7 8


60/60

DEH-1800R/XN/EW60

1 2 3 4

C

D

F

A

B

E

Before shipping out the product, be sure to clean theollowing portions by using the prescribed cleaning

too s:

Portions to be cleaned Cleaning tools

CD pickup lenses Cleaning liquid : GEM1004

Cleanin

g paper : GED-008

-Jigs List

Test Disc

L.P.F.

TCD-782 Checkin

g the grating

Checking the grating (Two pieces)

Name Jig No. Remarks

-Grease List

Grease

Grease

GEM1024

GEM1045CD Mechanism Module

CD Mechanism Module

Name Grease No. Remarks

Pioneer DEH 1800R Service Manual

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Transcript of Pioneer DEH 1800R Service Manual