PIONEER DEH-1770, DEH-1750, DEH-1750MP Service Manual

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 2004

ORDER NO.

CRT3377

DEH-1750/XN/GS

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-1750

DEH-1770

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

Model No. Order No. Mech.Module Remarks

CX-3110 CRT3178 S10.1 CD Mech. Module:Circuit Description, Mech. Description, Disassembly

/XN/CS

/XN/GS

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

K-ZZW. OCT. 2004 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

B

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 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-1750/XN/GS

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-1750/XN/GS

E

F

7

8

3

1234

1. SPECIFICATIONS

A

B

C

D

E

56

DEH-1750/XN/GS

F

7

8

5

1234

A

B

C

D

E

F

6

1234

DEH-1750/XN/GS

5678

A

B

C

D

E

56

DEH-1750/XN/GS

F

7

8

7

N

5

8

3

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 indicatesthe 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 lobricants 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

C

D

1

E

F

8

1234

DEH-1750/XN/GS

5678

PACKING SECTION PARTS LIST

Mark No. Description Part No.

1 Accessory Assy CEA4850 2 Screw Assy CEA3849 3 Screw CBA1650 * 4 Polyethylene Bag CEG-127 5 Screw CRZ50P090FTC

6 Screw TRZ50P080FTC * 7 Polyethylene Bag CEG-158 8 Handle CNC5395 9 Bush CNV3930 10 Polyethylene Bag CEG-162

11 Carton(DEH-1750) CHG5418 Carton(DEH-1770) CHG5419

Owner's Manual,Installation Manual

Part No. Language

CRD3910 English, Traditional Chinese, Arabic CRD3911 English, Traditional Chinese, Arabic CRD3912 English, Spanish, Portuguese(B) CRD3913 English, Spanish, Portuguese(B)

Mark No. Description Part No.

12 Contain Box(DEH-1750) CHL5347 Contain Box(DEH-1770) CHL5348 13 Protector CHP2664

14 Protector CHP2868 15-1 Owner's Manual(DEH-1750) CRD3910 Owner's Manual(DEH-1770) CRD3912 15-2 Installation Manual(DEH-1750) CRD3911 Installation Manual(DEH-1770) CRD3913

15-3 Caution Card CRP1310 16 Case Assy CXB3520 17 Cord Assy XDE7008

A

B

C

D

E

F

56

DEH-1750/XN/GS

7

8

9

1234

2.2 EXTERIOR

A

B

C

D

E

F

10

1234

DEH-1750/XN/GS

5678

EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

1 Screw BSZ26P060FTC 2 Screw BSZ26P100FTC 3 Cable CDE7702 4 Cord Assy XDE7008 5 Panel CNS8048

6 Case CNB2793 7 Holder CNC8659 8 Insulator CNM9145 9 Tuner Amp Unit(DEH-1750) CWM9601 Tuner Amp Unit(DEH-1770) CWM9605

10 Screw ASZ26P060FTC 11 Screw BMZ26P160FTC 12 Screw BPZ26P080FTC > 13 Fuse(10A) CEK1208 14 Pin Jack(CN352) CKB1059

15 Plug(CN901) CKM1376 16 Connector(CN831) CKS3581 17 Connector(CN651) CKS3835 18 Antenna Jack(CN401) CKX1056 19 Holder CND2413

20 Holder CND2414 21 Heat Sink CNR1762 22 FM/AM Tuner Unit CWE1912 23 Holder CND1054 24 Terminal(CN402) VNF1084

Mark No. Description Part No.

47 Spring CBH2367

48 Bracket CNC6791 49 Holder CNC8042 50 Cover CNM6276 51 Panel CNS8044 52 Arm CNV4692

53 Arm CNV4728 54 Arm CNV5576 55 Screw IMS20P030FZK 56 Chassis Unit CXC3600 57 CD Mechanism Module(S10) CXK5605

58 Screw ISS26P055FTC 59 IC(IC302) TDA7386 60 Transistor(Q921,991) 2SD2396

A

B

C

25 Detach Grille Assy(DEH-1750) CXC3538 Detach Grille Assy(DEH-1770) CXC3542 26 Screw BPZ20P100FZK 27 Button(VOLUME) CAC8924 28 Button(SELECT) CAC8925

29 Button(BTB,SRC) CAC8927 30 Button(LOUD,BAND) CAC8928 31 Button(1-6) CAC8929 32 Button(CD EJECT,AUDIO) CAC8930 33 Button(DETACH) CAC8931

34 Spring CBH2210 35 Cover CNS8042 36 LCD CAW1847 37 Connector(CN1801) CKS3580 38 Holder CND2412

39 Sheet CNM9144 40 Lighting Conductor CNV8190 41 Rubber CNV8191 42 Connector CNV8192 43 Grille Unit(DEH-1750) CXC3592

Grille Unit(DEH-1770) CXC3994 44 Button CAC4836 45 Spring CBH1835 46 Spring CBH2208

D

E

F

56

DEH-1750/XN/GS

7

8

11

1234

2.3 CD MECHANISM MODULE

42

A

5

13

5

81

34

5

15

22

E

F

93

13

A

44

B

5

B

1

54

53

C

52

13

D

86

82

83

4

37

71

4

29

51

1

73

50

72

10

1

I

76

B

55

5

36

4

1

18

2

64

47

C

24

2

1

7

61

2

M

1

23

87

75

E

63

57

62

58

1

G

L

1

N

R

1

2

1

40

56

D

O

16

P

1

33

1

P

19

J

12

3

20

39

1

69

30

2

21

M

D

79

2

1GEM1024 2GEM1045 3GEM1035

E

92

26

G

68

28

I

H

28

45

J

38

23

K

59

49

F

Q

A

27

H

77

90

48

8

67

17

78

25

70

60

80

N

L

K

43

46

6

60

11

89

10

14

74

R

31

41

85

C

91

F

C

65

1

2

3

85

66

35

O

31

Q

14

85

12

1234

DEH-1750/XN/GS

5678

CD MECHANISM MODULE SECTION PARTS LIST

Mark No. Description Part No.

1 CD Core Unit(S10) CWX3110 2 Connector(CN101) CKS4182 3 Connector(CN701) CKS4188 4 Screw BMZ20P035FTC 5 Screw BSZ20P040FTC

6 Screw(M2x4) CBA1362 7 Screw(M2x3) CBA1824 8 Screw(M2x3) CBA1825 9 ••••• 10 Washer CBF1038

11 Washer CBF1060 12 Spring CBH2390 13 Spring CBH2606 14 Spring CBH2607 15 Spring CBH2608

16 Spring CBH2609 17 Spring CBH2610 18 Spring CBH2735 19 Spring CBH2612 20 Spring CBH2613

21 Spring CBH2614 22 Spring CBH2615 23 Spring CBH2616 24 Spring CBH2617 25 Spring CBH2620

26 Spring CBH2621 27 Spring CBH2641 28 Spring CBH2642 29 Spring CBH2643 30 Spring CBH2659

31 Spring CBH2688 32 ••••• 33 Shaft CLA4441 34 Frame CNC9962 35 Frame CNC9963

36 Bracket CND2712 37 Bracket CND1895 38 Arm CNC9968 39 Arm CND1909 40 Lever CND2032

41 Lever CNC9984 42 Sheet CNM8134 43 Collar CNV7798 44 Guide CNV7799 45 Arm CNV8403

Mark No. Description Part No.

50 Gear CNV8379

51 Gear CNV8380 52 Gear CNV8381 53 Gear CNV8382 54 Gear CNV8383 55 Gear CNV8384

56 Rack CNV8385 57 Arm CNV8386 58 Arm CNV8387 59 Guide CNV8388 60 Roller CNV7218

61 Gear CNV8389 62 Arm CNV8391 63 Arm CNV8390 64 Arm CNV8392 65 Damper CNV7313

66 Damper CNV7314 67 Arm CNV8394 68 Arm CNV8395 69 Guide CNV8396 70 Guide CNV8397

71 Holder CNV8398 72 Arm CNV8402 73 Gear CNV8400 74 Damper CNV7618 75 Motor Unit(M1) CXC4440

76 Chassis Unit CXC2318 77 Screw Unit CXB8729 78 Gear Unit CXC2397 79 Arm Unit CXC2316 80 Arm CND1896

81 Arm CND1894 82 Motor Unit(M2) CXB8933 83 Bracket CNC9985 84 ••••• 85 Screw(M2x5) EBA1028

86 Screw JFZ20P020FTC 87 Screw JGZ17P022FTC 88 ••••• 89 Washer YE20FTC 90 Pickup Unit(P10)(Service) CXX1641

91 Screw IMS26P030FTC 92 Spring CBL1635 93 Clamper CNV8372

A

B

C

D

E

46 Rack CNV8374 47 Holder CNV8376 48 Holder CNV8377 49 Arm CNV8378

56

DEH-1750/XN/GS

F

7

8

13

Q

Q Q

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3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

TUNER AMP UNIT

A

VDD

FM/AM TUNER UNIT

B

ANTENNA

CN401

1

2

1

3

AM ANT

FM ANT

ATT

ANT adj

FMRF

RF adj

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

C

RFGND

OSCGND

DGND

212 1522 16 4 17

AUDIOGNDNCVCC

VDD_3.3

3.3V

SL

TUN 3V VCC

DI

IC 5

←

5V 3.3V

IC 4

3.3V 2.5V

CK

NC

CE1

←

2.5V

DO

NCNCNC

NC

DET, FM MPX, RDS DECODER

Rch

IC 2

2.5V

24

Lch

23

TUN L

2

CD L

VST,VCK,VDT

3

PICKUP UNIT

D

(P10)(SERVICE)

LASER DIODE

HOLOGRAM

UNIT

FOCUS ACT.

TRACKING ACT.

MONITOR

DIODE

SPINDLE

MOTOR

CARRIAGE

LOADING/

MOTOR

LD+

MD

FOP TOP

M

E

CD CORE UNIT(S10)

C

D

CN101

Q101

14

5

FOP

1

TOP

4

12EJ 8EJ DSCSNS

3R3V

12 13

16 15 17 18

FOP TOP

ACT,MOTOR

DRIVER

SOP SOM LCOM LCOP

LOEJ

CONT

IC 301

BA5835FP

AC, F, E, BD

FD, TD, SD, MD

22

9

HOME

1

LD

2

PD

SERVO

CONTROL,

DSP,

LPF, DAC

IC 201

UPD63712AGC

42

LIMIT

3R3V

20

LOUT

23

xtal

X201

24

XTAL

12

SO

VD

3.3V REGULATOR

3

IC 701

CN701

LOUT

CONT

DSCSNS

1

LOEJ

CN651

8

14

SYSTEM CONTROLLER

XSI LOEJ CONT DISCSENS

VDSENS

INTRQ

66

41

VDCONT

8

IC 601(2/2)

PE5449A

KYDT

DSENS

9

65

DPDT

21

XSI

16

5

7

6

VD

1

2

IC 652

24

6

TC7SET08FU

17

15

16

VDSENS

20

21

Q991

Q992

B.UP

16 29 28 79

78

swvdd

22

MUTE

SYSPW

ILMPW

48

70

X1

X601

69

X2

43

B.UP

VDD

NJM2885DL1-33

F

14

1234

DEH-1750/XN/GS

5678

A

RESET

CE2

55

TUNPCE2

CE1

56

TUNPCE1

DO

11

TUNPDI

DI

12

TUNPDO

CK

13

TUNPCK

76

SL

1

S-80834CNY

60

reset

SYSTEM CONTROLLER

IC 601(1/2)

PE5449A

IC 961

2

DALMON

bsens

asens

ANTPW

VDD

RCA OUT

CN352

RL

VDD REGULATOR

VDD

32

64

63

49

Q911

BACKUP SENSE

Q931

ACC SENSE

Q912

B.UP

ACC

B REMOTE

TPD1018F

IC 551

6

15

Q352

CN901

2

FUSE

16

10A

14

11

15 15

RL

B

16

14

11

BACK UP

ACC

B.REM

GND

C

TE

X1

X2

W

CD L

VST,VCK,VDT

48

70

69

43

TUN L

X601

B.UP

VDD

ELECTRONIC VOLUME/

SOURCE SELECTOR

2

IN1-L

IC 151

PML010A

3

IN2-L

CN831

Q821

ILM

7

Q822

Q801

SWVDD

5

SOURCE

66

DPDT

4

DSENS

KYDT

3

FL RL

CN1801

7

5

4

88

KYDT

3

10

11

ILL

SW5V

SOURCE

DPDT

DSENS

MUTE

Q452

SOURCE

18

DPDT

20

KTDT

10

56

VDD

VLCD

LCD DRIVER/

KEY CONTROLLER

PD6340A

IC 1801

14 12

KEY DATA

POWER AMP

IC 302

FLIN

TDA7386

RLIN

STBYMUTE

22 4

SYS 8.4V REGULATOR

VCC

TUNER 3.3V REGULATOR

TUN 3V

Q921

IC 901

BA33BC0FP

6,20

FLFL+ RLRL+

Q923

B.UP

23 21

3 5

SYSPW

31

VCC

KEYBOARD UNIT

B

KEY MATRIX

LCD

B.UP

7

5

8

6

FLFL+ RL-

RL+

D

E

56

DEH-1750/XN/GS

F

7

8

15

1234

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

A-a

C

A-a A-b

A-a

A-b

Large size

SCH diagram

Guide page

CN701

A-b

Detailed page

CD:+0.4dBs

A-a

B

FM:-20.4dBs

AM:-31.3dBs

C

D

ANTENNA

E

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. 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

B

CN1801

F

16

A

DEH-1750/XN/GS

1234

4

5678

A

A-b

TUNER AMP UNIT

A

dBs

FM: +2.8dBs AM: -8.1dBs CD:+10.6dBs

>

REAR L REAR R

FM:+2.0dBs AM: -8.9dBs CD:+9.8dBs

B

C

>

CEK1208

10A

BACKUP

GND

ACC

B.REM

RL–

FM:+29.3dBs AM:+18.4dBs CD:+36.6dBs

FL– RL+ FL+

RR–

FR– RR+ FR+

D

56

DEH-1750/XN/GS

E

F

A

7

8

17

A

A-b

1234

1

CD:+0.4dBs

2 3 4

B

CN701

C

A-b A-a

A-a

D

E

F

A-a

18

FM:-20.4dBs

AM:-31.3dBs

1234

DEH-1750/XN/GS

5678

3 4 5

A

6

A-b

B

CN1801

←

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

A-b A-a

A-a

C

D

E

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 :

ANTENNA

DEH-1750/XN/GS

56

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.

A-a

7

8

F

19

PIONEER DEH-1770, DEH-1750, DEH-1750MP 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)