PIONEER DEH-1850 Service Manual

ORDER NO.

CRT3552

DEH-1850/XN/ES

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-1850

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

/XN/ES

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

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2005

K-ZZA. NOV. 2005 Printed in Japan

1234

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

A

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.

- Service Precaution

1. You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing 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

B

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.

C

D

E

F

2

1234

DEH-1850/XN/ES

5678

[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 by following 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 as radio/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 secure connections 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.

A

B

C

D

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.

3. Lubricants, Glues, and Replacement parts

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

4. Cleaning

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

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 be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

56

DEH-1850/XN/ES

E

F

7

8

3

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1. SPECIFICATIONS

A

B

C

D

E

56

DEH-1850/XN/ES

F

7

8

5

N

1234

2. EXPLODED VIEWS AND PARTS LIST

OTES : • 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.

A

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.)

2.1 PACKING

"

B

18

C

17

D

4

5

8

14

6

7

9

10

11

1

2

12

15

13

16

E

F

6

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DEH-1850/XN/ES

5678

PACKING SECTION PARTS LIST

Mark No. Description Part No.

1 Accessory Assy CEA4850

2 Screw Assy CEA3849

3 •••••

4 Screw CBA1650

* 5 Polyethylene Bag CEG-127

Mark No. Description Part No.

11 Polyethylene Bag CEG-162

12 Carton CHG5639

13 Contain Box CHL5639

14 Protector CHP2664

15 Protector CHP2868

A

6 Screw CRZ50P090FTC

7 Screw TRZ50P080FTC

* 8 Polyethylene Bag CEG-158

9 Handle CNC5395

10 Bush CNV3930

16-1 Owner's Manual CRD4039

16-2 Installation Manual CRD4030

16-3 Caution Card CRP1310

17 Cord Assy XDE7008

18 Case Assy CXB3520

Owner's Manual,Installation Manual

Part No. Language

CRD4039 English, Spanish, Portuguese(B), Traditional Chinese, Arabic

CRD4030 English, Spanish, Portuguese(B), Traditional Chinese, Arabic

B

C

D

E

F

56

DEH-1850/XN/ES

7

8

7

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2.2 EXTERIOR

A

B

C

59

D

E

F

8

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DEH-1850/XN/ES

5678

EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

1 Screw BSZ26P060FTC

2 Screw BSZ26P100FTC

3 Cord Assy XDE7008

4 •••••

5 Cable CDE7983

6 Case CNB2793

7 Holder CNC8659

8 Insulator CNM9145

9 Tuner Amp Unit CWN1271

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

17 Connector(CN651) CKS3832

18 •••••

19 Antenna Jack(CN401) CKX1056

20 Holder CND2414

21 Holder CND2413

22 Heat Sink CNR1762

23 FM/AM Tuner Unit CWE1952

24 Holder CND1054

25 Button(DETACH) CAC4836

Mark No. Description Part No.

50 Holder CND2949

51 Transistor(Q911,921,991) 2SD2396

52 IC(IC302) PAL007B

53 Lighting Conductor CNV8712

54 Rubber CNV8713

55 Connector CNV8714

56 Grille Unit CXC5278

57 Chassis Unit CXC3600

58 CD Mechanism Module(S10.5) CXK5701

59 Spacer CNN1238

A

B

C

26 Spring CBH1835

27 Spring CBH2208

28 Spring CBH2367

29 Bracket CNC6791

30 Holder CNC8042

31 Cover CNM6276

32 Panel CNS8404

33 Arm CNV4692

34 Arm CNV4728

35 Arm CNV5576

36 Screw IMS20P030FTB

37 Detach Grille Assy CXC5235

38 Screw BPZ20P100FTB

39 Button(DETACH) CAC9382

40 Button(VOLUME(+/ -)) CAC9384

41

42 Button(<, >EJECT) CAC9389

43 Panel CNS8389

44 Button(EQ,LOUDNESS) CAC9390

45 Button(SOURCE,BAND) CAC9383

46 Spring CBH2210

47 Cover CNS8367

48 LCD CAW1905

49 Connector(CN1801) CKS3580

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

CAC9385

D

E

F

56

DEH-1850/XN/ES

7

8

9

1234

2.3 CD MECHANISM MODULE

A

B

C

D

E

F

10

1234

DEH-1850/XN/ES

5678

CD MECHANISM MODULE SECTION PARTS LIST

Mark No. Description Part No.

1 CD Core Unit(S10.5) CWX3090

2 Connector(CN101) CKS4182

3 Connector(CN702) CKS4185

4 Screw BMZ20P025FTC

5 Screw BSZ20P040FTC

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

Mark No. Description Part No.

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

A

B

C

D

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

56

DEH-1850/XN/ES

E

F

7

8

11

E

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

B

ANTENNA

C

TUNER AMP UNIT

A

FM/AM TUNER UNIT

CN401

1

2

1

3

AM ANT

FM ANT

ATT

ANT adj

FMRF

RF adj

VDD

TUNPCK

VDD_3.3

TUNPDI

DI

SL

IC 5

5V 3.3V

3.3V 2.5V

3.3V

TUN 3.3V

VCC(SYS 8V)

CK

NC

CE1

←

IC 4

←

2.5V

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

NC

CE2

ROM_VDD

IC 3 EEPROM

5.0V

OSC

LPF

IC 1

3.3V

MIXER, IF AMP

T51

CF52

RFGND

OSCGND

DGND

212 1522 16 4 17

AUDIOGNDNCVCC

TUNPDO

DO

NCNCNC

NC

IC 2

2.5V

DET, FM MPX

Rch

24

Lch

23

TUN_Lch

CD_Lch

1

2

PICKUP UNIT (P10.5)(SERVICE)

LASER

D

DIODE

MONITOR

DIODE

LOAD/

HOLOGRAM

FOCUS ACT.

TRACKING ACT.

SPINDLE

MOTOR

CARRIAGE

MOTOR

VCC

UNIT

VCC

LD-

MD

VREF

FOM

FOP TOP

TOM

LD+

M

E

CD CORE UNIT(S10.5)

C

D

Q102

CN101

V+3A

12

15

5

REFO

88

AC,BD

F,E

FOM

Q101

33

FOP

2

TOP

1

TOM

44

14

S904 12EJ

S905

8EJ

12

VO1(+)

11

VO1(-)

14

VO2(+)

13

VO2(-)

16

VO3(-)

15

VO3(+)

18

VO4(-)

17

VO4(+)

VDD

CD

DRIVER

IC301

BA5839FP

MUTE

S903

DSCSNS

LDIN

42

PA7/CD3V

2

PD

93

REFOUT

1

LD

CD CONTROLLER

FD,TD

SD,MD

21

40

CNT

PA5/CLCONT

22

41

PA6/LOEJ

9

39

PA4/CONT

36

PA1/12SNS

37

PA2/8SNS

38

PA3/DSCSNS

35

PA0/HOME

S901

HOME

IC201

PE5497B

PC7/CDMUTE

PB1/VDCONT

LOUT

XTAL

/XTAL

RESET

25

23

29

54

19

X201

16.93MHz

VDD

BRST,BRXEN,BSRQ

BDATA,BSCK

VD

56

CN702

LOUT

/RESET

CDMUTE

VDCONT

VDD

CN651

LOUT

16

5

SYSTEM

IC P

CD 3V REGULATOR

1

11

10

BD7802FP

RESET

10

11

13

8

VD

1

20

2

19

VDCONT

12

9

IC962

Q991

3

VDD

36

NC

BRST,BRXEN,BSRQ

Q992

BDATA,BSCK

B.UP

CD VD

F

12

1234

DEH-1850/XN/ES

5678

A

RESET

IC963

BD4834G

2

VDD

1

TUN_Lch

CD_Lch

SYSTEM CONTROLLER

TUNPDO

11

TUNPDI

12

SL

76

TUNPCK

13

CE1

56

CE2

55

ELECTRONIC VOLUME/

SOURCE SELECTOR

1

IN1-L

2

IN2-L

IC601(2/2) PE5518A

IC151

PML014A

VCK, VDT, VST

SYSPW

Front_ L

Rear_ L

MUTE

60

RESET

TUNPDI

TUNPDO

SL

TUNPCK

TUNPCE1

TUNPCE2

SYSTEM CONTROLLER

IC601(1/2)

PE5518A

6

7

48

43

DALMON

BSENS

ASENS

32

64

63

MUTE

Q452(2/2)

MUTE

Q452(1/2)

BSENS

ASENS

(SYS 8V)

TUN3V

VCC

VDD

TUN 3V REG.

IC901

1

NJM2885DL1-33

VDD REGULATOR

Q911

BACKUP SENSE

Q931

ACC SENSE

POWER AMP

14

FLIn

IC302

PAL007B(50W)

12

RLIn

22

MUTE

STBY

4

3

SYSPW

Q912

ACC

6,20

VCC

BREM

SYS 8V REG.

Q921

B.UP

CN352

2

RLch

MUTE

Q352

B

CN901

FUSE

1

10A

3

2

B.UP

23

FL-

21

FL+

3

RL-

5

RL+

BREM

Q923

25

B.UP

10

12

9

11

6

BACK UP

ACC

GND

FLFL+ RL-

RL+

B. REM

C

D

70

X1

X601

12.58291MHz

69

36

NC

X2

CN1801CN831

SW5V

5

6

8

7

4

3

SOURCE

DSENS

ILL

DPDT

KYDT

5.1V

S1805

SOURCE

SWVDD

SRC

DSENS

ILMPW

DPDT

KYDT

SWVDD

Q801

ILMPW

Q821

SWVDD

SOURCE

DSENS

ILM

DPDT

KYDT

VDD

21

SWVDD

66

65

B.UP

Q822

22

9

8

DEH-1850/XN/ES

56

S1801

VOL+

S1807

VOL-

S1812

4ch/RDM

S1818 S1838

AUDIO

18

DPDT

20

KYDT

7

KEY MATRIX

S1803 S1825

S1802

5ch/RPT

S1809

S1808

S1839

1ch

CLOCK

S1813 S1821

LEFT

DOWN

S1819 S1829

EJECT

KEY DATA

LCD DRIVER/

KEY CONTROLLER

IC1801

PD6340A

BTB

S1814 S1822

S1820 BAND

S1804

3ch

S1810

LOC

S1815 S1823

UP

S1826 S1827

DISP/LOUD

KEYBOARD UNIT

B

S1806

2ch

S1811

6ch/PAUSE

S1816 S1824

RIGHT

22

X0

X1801 5MHz

23

X1

E

F

LCD

8

13

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3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

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

A

Large size

A-b

SCH diagram

Guide page

Detailed page

A-a A-b

A-a

B

A-a

C

CN702

C

SOURCE

FM/AM TUNER UNIT

D

STRKEY2

CDRESET

E

CN1801

B

NOTE :

Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors.

Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors.

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

F

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

Decimal points for resistor and capacitor fixed values are expressed as :

←

2.2 2R2

←

0.022 R022

A

14

1234

DEH-1850/XN/ES

SOURCE

5678

A

A-b

TUNER AMP UNIT

A

B

>

CDRESET

STRKEY2

600 H

C

CEK1208 10A

>

D

E

56

DEH-1850/XN/ES

F

A

7

8

15

A

A-b

1234

1 2 3

SOURCE

B

CN702

C

A-b

A-a

D

E

F

A-a

16

FM/AM TUNER UNIT

DEH-1850/XN/ES

1234

U

5678

A

4 5

STRKEY2

CDRESET

A-b

B

CN1801

B

←

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

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

Symbol indicates a resistor.

No differentiation is made between chip resistors and

discrete resistors.

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and

discrete capacitors.

NOTE :

identical designation.

A-b

A-a

C

D

E

FM/AM T

F

A-a

56

DEH-1850/XN/ES

7

8

17

1234

A

>

CEK1208 10A

B

>

TUNER AMP UNIT

600µH

A

C

A-b

A-a

D

E

F

A-b

18

1 2 3

DEH-1850/XN/ES

1234

CEK1208 10A

5678

A

>

B

600µH

A-b

A-a

C

D

E

4 5

DEH-1850/XN/ES

56

F

A-b

7

8

19

PIONEER DEH-1850 Service Manual

SAFETY INFORMATION

CONTENTS

1. SPECIFICATIONS

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

2.2 EXTERIOR

2.3 CD MECHANISM MODULE

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)