Pioneer DEH-2750MP, DEH-2770MP, DEH-2790MP Schematic

ORDER NO.

CRT3396

DEH-2790MP/XN/ID

HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER

DEH-2790MP

DEH-2750MP DEH-2770MP

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

Model No. Order No. Mech.Module Remarks

CX-3158 CRT3394 S10.1AAC CD Mech. Module : Circuit Description, Mech. Description, Disassembly

/XN/GS /XN/CS

/XN/ID

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 2004

K-ZZA. NOV. 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-2790MP/XN/ID

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-2790MP/XN/ID

E

F

7

8

3

1234

1. SPECIFICATIONS

A

B

C

D

E

56

DEH-2790MP/XN/ID

F

7

8

5

1234

A

B

C

D

E

F

6

1234

DEH-2790MP/XN/ID

5678

A

B

C

D

E

56

DEH-2790MP/XN/ID

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-2790MP/XN/ID

5678

(1) 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

Mark No. Description Part No.

11 Carton See Contrast table(2) 12 Contain Box See Contrast table(2) 13 Protector CHP2664 14 Protector CHP2868 15-1 Owner's Manual See Contrast table(2)

15-2 Installation Manual See Contrast table(2) 15-3 Caution Card CRP1310 16 Case Assy CXB3520 17 Cord Assy XDE7008

A

(2) CONTRAST TABLE

DEH-2790MP/XN/ID, DEH-2750MP/XN/GS and DEH-2770MP/XN/CS are constructed the same except for the following:

Mark No. Description DEH-2790MP/XN/ID DEH-2750MP/XN/GS DEH-2770MP/XN/CS

11 Carton CHG5470 CHG5434 CHG5435 12 Contain Box CHL5470 CHL5434 CHL5435 15-1 Owner's Manual CRD3939 CRD3939 CRD3937 15-2 Installation Manual CRD3940 CRD3940 CRD3938

Owner's Manual,Installation Manual

Part No. Language

CRD3939 English, Traditional Chinese, Arabic CRD3940 English, Traditional Chinese, Arabic CRD3937 English, Spanish, Portuguese(B) CRD3938 English, Spanish, Portuguese(B)

B

C

D

56

DEH-2790MP/XN/ID

E

F

7

8

9

1234

2.2 EXTERIOR

A

B

C

D

E

F

10

1234

DEH-2790MP/XN/ID

5678

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

1 Screw BSZ26P060FTC 2 Screw BSZ26P100FTC 3 Cable CDE7703 4 Cord Assy XDE7008 5 •••••

6 Case CNB2793 7 Holder CNC8659 8 Insulator CNM9145 9 Tuner Amp Unit See Contrast table(2) 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) CKS3837 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 25 Button(DETACH) CAC4836

26 Spring CBH1835 27 Spring CBH2208 28 Spring CBH2367 29 Bracket CNC6791 30 Holder CNC8042

31 Cover CNM6276

Mark No. Description Part No.

32 Panel CNS8044 33 Arm CNV4692 34 Arm CNV4728 35 Arm CNV5576

36 Screw IMS20P030FZK 37 Chassis Unit CXC3600 38 Detach Grille Assy See Contrast table(2) 39 Screw BPZ20P100FZK 40 Button(TA, VOLUME(+/-)) CAC8924

41 Button(UP, DOWN, LEFT, RIGHT) CAC8926 42 Button(BTB, SOURCE) CAC8927 43 Button(1-6, LOCAL/BSM) CAC8929 44 Button(EJECT, AUDIO) CAC8930 45 Button(DETACH) CAC8931

46 Button(DISPLAY, BAND) CAC8934 47 Spring CBH2210 48 Cover CNS8042 49 LCD CAW1848 50 Connector(CN1801) CKS3580

51 Holder CND2412 52 Sheet CNM9144 53 Lighting Conductor CNV8190 54 Rubber CNV8191 55 Connector CNV8192

56 Grille Unit See Contrast table(2) 57 58 Screw ISS26P055FTC 59 IC(IC302) PAL007A 60 Transistor(Q911, 921, 991) 2SD2396

61 Panel See Contrast table(2)

CD Mechanism Module(S10.1AACA)

CXK5663

A

B

C

D

(2) CONTRAST TABLE

DEH-2790MP/XN/ID, DEH-2750MP/XN/GS and DEH-2770MP/XN/CS are constructed the same except for the following:

Mark No. Description DEH-2790MP/XN/ID DEH-2750MP/XN/GS DEH-2770MP/XN/CS

9 Tuner Amp Unit CWM9693 CWM9693 CWM9970 38 Detach Grille Assy CXC4395 CXC3748 CXC4391 56 Grille Unit CXC4239 CXC3643 CXC4236 61 Panel YNS5045 YNS5045 CNS8048

56

DEH-2790MP/XN/ID

7

8

E

F

11

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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-2790MP/XN/ID

5678

CD MECHANISM MODULE SECTION PARTS LIST

Mark No. Description Part No.

1 CD Core Unit(S10.1) CWX3096 2 Connector(CN101) CKS4182 3 Connector(CN901) CKS4017 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-2790MP/XN/ID

F

7

8

13

C

6

E

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3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

ANTENNA

B

C

TUNER AMP UNIT

A

FM/AM TUNER UNIT

CN401

1

2

AM ANT

1

3

FM ANT

ATT

ANT adj

FMRF

RF adj

VDD

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

AUDIOGNDNCVCC

VDD_3.3 17

SL

3.3V

TUN 3.3V VCC

DI

IC 5

←

5V 3.3V

IC 4

3.3V 2.5V

CK

NC

CE1

←

2.5V

DO

NCNCNC

NC

IC 2

2.5V

DET, FM MPX

Rch

24

Lch

23

E

TUN L

2

I

CDL

3

I

CD CORE UNIT(S10.1)

C

PICKUP UNIT (P10)(SERVICE)

LASER DIODE

D

HOLOGRAM

FOCUS ACT.

TRACKING ACT.

MONITOR

DIODE

M1

SPINDLE

MOTOR

M2

LOADING/CARRIAGE

MOTOR

UNIT

M

CN101

LD-

15

MD

5

AC,BD

FOP

1

TOP

4

LD+

14

E

V3R3D

Q101

E,F

S904 12EJ

3

NJM2885DL1-33

3.3V REGULATOR

V3R3D

142

LD

143

PD

RF AMP, CD DECODER, MP3 AND WMA DECODER, DIGITAL SERVO/DATA PROCESSOR

FD,TD

12

FOP

13

TOP

CD

DRIVER

16

SOP

15

SOM

18

LCOP

17

LCOM

IC 301

BA5835FP

S905

S903

8EJ

DSCSNS

IC 203

SD,MD

LOEJ

CONT

S901

HOME

IC 201

UPD63763GJ

53

22

9

47

32

31 30 97

1

VD2

COMPUTER

LOEJ

CONT

12EJ 8EJ DSCSNS

HOME

X701

X1

MICRO

IC 701

PE5454A

3VDD

1312

LOUT

X2

14

reset

49

VDCONT

3V REGULATOR

3

IC 703

S-812C33AUA-C2N

CN901

31

RESET

BRST,BRXEN,BSRQ

BDATA,BSCK

VD

VDCONT

2

VDD

LOUT

CN651

CD L

14

10

SYSTEM

IC

P

RESET

15

9

VD

VDD

VD2

VD

3

21

4

20

19

5

19

2

22

A

BRST,BRXEN,BSRQ,BDATA,BSCK

Q991

VDSENS

VDCONT

VDD

Q992

34

5

2

B.UP

78

VDSENS

F

14

1234

DEH-2790MP/XN/ID

TUN L

CDL

5678

RESET

A

TUNPDO

11

LDET

61

TUNPDI

12

SL

76

TUNPCK

13

CE1

56

CE2

55

ELECTRONIC VOLUME/

SOURCE SELECTOR

2

IN1-L

IC 151

3

PML010A

IN2-L

RESET

IC 961

S-80834CNY

60

RESET

TUNPDI LDET TUNPDO SL TUNPCK TUNPCE1 TUNPCE2

SYSTEM CONTROLLER

IC 601(1/2)

PE5447A

10

F Lch

11

R Lch

DALMON

BSENS

ASENS

A

CN352

REAR OUTPUT

2

VDD

VDD REGULATOR

VDD

32

64

63

BSENS

ASENS

Q911

BACKUP SENSE

Q931

Q912

B.UP

ACC

ACC SENSE

B.UP

IC 302

PAL007A

STBY

4

20 6

BREM

23

FL-

21

FL+

3

RL-

5

RL+

25

POWER AMP

14

FLIN

12

RLIN

22

MUTE

Q352

R Lch

B. REMOTE

CN901

B

FUSE

1

3

2

10 12

9

11

6

BACK UP

10A

3

ACC

2

GND

10

FL-

12

FL+

9

RL-

11

RL+

6

B.REM

C

SYSTEM CONTROLLER

IC 601(2/2)

PE5447A

78

VDSENS

VCK, VDT, VST

MUTE

SYSPW

70

X1

69

X2

21

SWVDD

66

INTRQ

65

DSENS

22

ILMPW

48

43

X601

12.58291MHz

VDD

SWVDD

SOURCE

DSENS

B.UP

Q822

Q801

Q821

MUTE

Q452(1/2)

MUTE

Q452(2/2)

5

6

8

7

SWVDD

SOURCE

DSENS

ILM

VCC

SYS 8V REG.

Q921

Q923

B.UP

SYSPW

TU 3.3V

TUN 3V REG.

IC 901

BA33BC0FP

D

KEYBOARD UNIT

B

CN1801CN831

5

SW5V

SOURCE

6

8

7

KEY MATRIX

E

DPDT

KYDT

9

8

DPDT

4

KYDT

3

SW5V

DEH-2790MP/XN/ID

56

18

DPDT

20

KYDT

10

VLCD

17

REM

56

VDD

7

KEY DATA

LCD DRIVER/

KEY CONTROLLER

IC 1801

PD6340A

22

X0

X1801 5MHz

23

X1

F

LCD

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

CN901

C

A-a A-b

A-a

A-b

Large size

SCH diagram

Guide page

A-b

Detailed page

A-a

B

C

FM/AM TUNER UNIT

DEH-2770MP/XN/CS

DEH-2750MP/XN/GS DEH-2790MP/XN/ID

bsrq

AVREF1

VSS

AVDD

source

dsene

D

brxen

STRKEY2

RECEIVE

BSI BDATA BSCK

XTALEN

brst

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-2790MP/XN/ID

1234

5678

A-b

TUNER AMP UNIT

A

>

B

C

>

CEK1208

10A

BACKUP GND

ACC

B.REM

RL—

D

FL—

RL+

FL+

RR—

FR— RR+ FR+

E

56

DEH-2790MP/XN/ID

F

A

7

8

17

A

B

A-b

1234

1

2

dsene

source

3

CN901

C

A-b A-a

A-a

D

VSS

AVDD

AVREF1

bsrq

DEH-2750MP/XN/GS

DEH-2790MP/XN/ID

DEH-2770MP/XN/CS

E

F

A-a

18

FM/AM TUNER UNIT

DEH-2790MP/XN/ID

1234

DEH

2750MP/XN/GS

U

5678

A

3

4

5

6

A-b

DEH-2790MP/XN/ID

STRKEY2

BSI

BDATA

BSCK

RECEIVE

brxen

brst

XTALEN

B

←

CN1801

←

A-b A-a

A-a

B

C

D

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

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.

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

NOTE :

identical designation.

F

FM/AM T

A-a

56

DEH-2790MP/XN/ID

7

8

19

1234

ACC

BACKUP

A

10A

>

CEK1208

B

>

B.REM

GND

TUNER AMP UNIT

C

A-b A-a

D

E

A

F

A-b

20

1

2

3

DEH-2790MP/XN/ID

1234

>

BACKUP

10A

CEK1208

5678

FR—

FL—

RL+

B.REM

RL—

ACC

GND

FR+

FL+

RR+

RR—

A

B

A-b A-a

C

D

E

F

3

4

5

DEH-2790MP/XN/ID

56

6

7

8

A-b

21

1234

3.3 KEYBOARD UNIT

A

B

C

D

E

F

B

22

1234

DEH-2790MP/XN/ID

Pioneer DEH-2750MP, DEH-2770MP, DEH-2790MP Schematic

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)

3.3 KEYBOARD UNIT