Pioneer DEHP-77-MP 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

C PIONEER CORPORATION 2003

K-ZZA. FEB. 2003 Printed in Japan

ORDER NO.

CRT3072

MULTI-CD/DAB CONTROL HIGH POWER CD/MP3/WMA PLAYER WITH RDS TUNER

DEH-P77MPEW

DEH-P77MP/EW

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

Model No. Order No. Mech. Module Remarks

CX-3057 CRT3026 S10MP3

CD Mech. Module:Circuit Description, Mech.Description, Disassembly

For details, refer to "Important symbols for good services".

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DEH-P77MP/EW

- CD Player Service Precautions

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

power. Unplugging and plugging the connectors dur-

ing power-on mode may damage the ICs inside the

unit.

2. To protect the pickup unit from electrostatic dis-

charge during serviving, take an appropriate treat-

ment(shorting-solder) by referring to "the DISAS-

SEMBLY" on page 54.

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

grating.(See p.50.)

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

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. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.

3

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.

1. 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.

2. A “CLASS 1 LASER PRODUCT” label is affixed to the bottom of the player.

3. The triangular label is attached to the mechanism unit frame.

4. Specifications of Laser Diode

Specifications of laser radiation fields to which human access is possible during service. Wavelength = 800 nanometers

CLASS 1 LASER PRODUCT

5

6

7

8

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D

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B

A

5

6

7

8

DEH-P77MP/EW

SAFETY INFORMATION

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DEH-P77MP/EW

1. SPECIFICATIONS

6

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DEH-P77MP/EW

1 Cord Assy CDE7153 2 Accessory Assy CEA3376 3 Spring CBH1650 4 Screw Assy CEA3848 5 Fixing Screw BPZ20P060FZK

6 Screw CBA1650

* 7 Polyethylene Bag CEG-127

8 Screw CRZ50P090FTC 9 Screw TRZ50P080FTC

* 10 Polyethylene Bag CEG-158

11 Handle CNC5395 12 Holder CND1249 13 Holder CND1250 14 Bush CNV3930 15 Polyethylene Bag CEG-162

* 16 Polyethylene Bag CEG1116

17 Carton CHG5036 18 Contain Box CHL5036 19 Protector CHP2663 20 Protector CHP2664

21-1 Owner’s Manual CRD3754 21-2 Owner’s Manual CRD3755 21-3 Owner’s Manual CRD3756 21-4 Installation Manual CRD3757

* 21-5 Passport CRY1013

* 21-6 Warranty Card CRY1157

22 Case Assy CXC1507

Mark No. Description Part No. Mark No. Description Part No.

- PACKING SECTION PARTS LIST

NOTE:

- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

- Screws 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. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

7

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DEH-P77MP/EW

- Owner's Manual, Installation Manual

Model Part No. Language DEH-P77MP/EW CRD3754 English, Spanish

CRD3755 German, French CRD3756 Italian, Dutch CRD3757 English, Spanish, German,

French, Italian, Dutch

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DEH-P77MP/EW

2.2 EXTERIOR

9

5

6

7

8

F

E

D

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B

A

5

6

7

8

DEH-P77MP/EW

1 Screw BMZ30P040FZK 2 Screw BSZ26P060FTC 3 Screw BSZ30P060FTC 4 Screw BSZ30P200FTC 5 Cord Assy CDE7019

6 Cord Assy CDE7129 7 Cord Assy CDE7153 8 Flat Cable CDE7208 9

CD Mechanism Module(S10MP3)

CXK5671

10 Case CNB2870

11 Holder CNC8659 12 Earth Plate CNC8915 13 Cushion CNM4870 14 Insulator CNM7935 15 Insulator CNM8174

16 Panel CNS7418 17 Tuner Amp Unit CWM8750 18 Screw ASZ26P060FTC 19 Screw BPZ26P080FTC 20 Screw BSZ26P160FTC

21 Clamper CEF1008 22 Fuse(10A) CEK1208 23 FM/AM Tuner Unit CWE1645 24 Holder CND1054 25 Pin Jack(CN351) CKB1051

26 Plug(CN981) CKM1376 27 Plug(CN702) CKS-787 28 Plug(CN352) CKS1238 29 Connector(CN101) CKS3408 30 Plug(CN841) CKS3537

31 Connector(CN701) CKS3841 32 Connector(CN821) CKS4124 33 Antenna Jack(CN401) CKX1056 34 Case CNC8138 35 Holder CND1270

36 Holder CND1352 37 Insulator CNM6249 38 Insulator CNM8245 39 Heat Sink CNR1668 40 Terminal(CN402) VNF1084

41 Button(EJECT) CAC7752 42 Screw(M2x4.5) CBA1647 43 Screw(M2x4) CBA1649 44 Washer CBF1038 45 Spring CBH2650

46 Spring CBH2651 47 Spring CBH2652 48 Spring CBH2653 49 ••••• 50 Holder CND1254

51 ••••• 52 ••••• 53 Gear CNV5997 54 ••••• 55 •••••

56 Arm CNV7400 57 Arm CNV7401 58 Arm CNV7402 59 Arm CNV7403 60 Panel Unit CWM8758

61 Socket(CN1950) CKS3550 62 Connector(CN1951) CKS4462 63 Holder Unit CXB9501 64 Holder Unit CXB9502 65 Damper Unit CXB9503

66 Service Panel Unit CXX1694 67 Spring CBL1512 68 Cover CNM6854 69 Panel CNS7310 70 Pin CNV6486

71 Lighting Conductor CNV6487 72 Detach Grille Assy CXC1026 73 Screw BPZ20P100FZK 74 Button(-) CAC7901 75 Button(1-6) CAC7903

76 Button(EQ) CAC8200 77 Button(OPEN) CAC8201 78 Button(D) CAC8202 79 Button(B) CAC8203 80 Spring CBH2704

81 Double-sided Tape CNM8498 82 Cover CNS7417 83 Lighting Conductor CNV7546 84 Keyboard Unit CWM8756 85 LCD(LCD1801) CAW1807

86 Connector(CN1801) CKS4524 87 Holder CND1442 88 Holder CND1444 89 Spacer CNM6696 90 Sheet CNM8114

91 Lighting Conductor CNV7545 92 Connector CNV7558 93 Knob Unit CXC1480 94 Chassis Unit CXC1190 95 Service Grille Unit CXX1706

96 Screw ISS26P055FTC 97 Choke Coil(L981) CTH1280 98 Transistor(Q782, 913) 2SD2375 99 IC(IC301) PAL007A

100 IC(IC1804) TSOP4840SB1

101 Cap CKX-003

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

10

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DEH-P77MP/EW

2.3 CD MECHANISM MODULE

D

1

2

1

2

1

2

1

2

1

3

1

1GEM1024 2GEM1045 3GEM1035

C

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

11

Mark No. Description Part No. Mark No. Description Part No.

1 CD Core Unit(S10MP3) CWX2745 2 Connector(CN101) CKS4182 3 Connector(CN901) CKS4021 4 Screw BMZ20P035FTC 5 Screw BSZ20P040FTC

6 Screw(M2x4) CBA1362 7 Screw(M2x3) CBA1511 8 Screw(M2x3) CBA1527 9 Washer CBF1037

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 CBH2611 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 Spring CBL1614

33 Shaft CLA3845 34 Frame CNC9962 35 Frame CNC9963

36 Bracket CNC9966 37 Bracket CNC9967 38 Arm CNC9968 39 Arm CNC9973 40 Lever CNC9983

41 Lever CNC9984 42 Sheet CNM8134 43 Collar CNV6906 44 Guide CNV6925 45 Arm CNV7198

46 Rack CNV7199 47 Holder CNV7201 48 Holder CNV7202 49 Arm CNV7203 50 Gear CNV7207

51 Gear CNV7208 52 Gear CNV7209 53 Gear CNV7210 54 Gear CNV7211 55 Gear CNV7212

56 Rack CNV7214 57 Arm CNV7215 58 Arm CNV7216 59 Guide CNV7217 60 Roller CNV7218

61 Gear CNV7219 62 Arm CNV7221 63 Arm CNV7220 64 Arm CNV7222 65 Damper CNV7313

66 Damper CNV7314 67 Arm CNV7341 68 Arm CNV7342 69 Guide CNV7360 70 Guide CNV7361

71 Holder CNV7437 72 Arm CNV7444 73 Gear CNV7595 74 Damper CNV7618 75 Motor Unit(M1) CXB6007

76 Chassis Unit CXB8728 77 Screw Unit CXB8729 78 Gear Unit CXB8731 79 Arm Unit CXB8732 80 Arm Unit CXB8735

81 Arm Unit CXB8852 82 Motor Unit(M2) CXB8933 83 Bracket CNC9985 84 Screw JFZ20P020FTC 85 Screw(M2x5) EBA1028

86 Screw JFZ20P020FTC 87 Screw JGZ17P022FTC 88 Washer YE15FTC 89 Washer YE20FTC 90 Pickup Unit(Service)(P10) CXX1641

91 Screw IMS26P030FMC 92 Connector(CN902) CKS2195

- CD MECHANISM MODULE SECTION PARTS LIST

12

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34

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DEH-P77MP/EW

BRST,BRXEN,BSRQ

Q602

Q603

MUTE

D

CN901

Q101

M

LASER DIODE

MONITOR

DIODE

CLAMP

SENSE

DISC

SENSE

FOCUS ACT.

SPINDLE

MOTOR

M

CARRIAGE

MOTOR

LOAD/

TRACKING ACT.

LD-

MD

FO+ TO+

15

5

1 4

PICKUP UNIT (SERVICE)(P10)

HOLOGRAM

UNIT

IC 301

BA5996FM

IC 201

UPD63760GJ

IC 703

+3.3V REGULATOR

RF-AMP,CD DECODER,

MP3 DECODER,

DIGITAL SERVO / DATA PROCESSOR

CD

DRIVER

5

VD1

3VDD

12

L-OUT

7

CN101

TOP

FOP

16

SOP

15

SOM

18

LCOP

17

LCOM

22

4,5

LOEJ

43

35

LOUT

42

9

CONT

12

FOP

TD/FD

AC,BD

F,E

SD/MD

1

13

TOP

HOME

12EJ

SENSE

8EJ

SENSE

LD+

14

142

LD

141

PD

CD CORE UNIT(S10MP3)

X202

DSCSNS

CONT

LOEJ

HOME

75

77

28

26

VDD

IC 203

BA033SFP

+3.3V REGULATOR

V3R3D

2

4

VD2

CD3VON

25

VDCONT

24

1

S-812C33AUA-C2N

CD CONTROLLER

IC 701

PE5352B

33

CDMUTE

6

V3R3D

WINT, WAIT, RFOK

IC 501(2/2)

UPD61002GC

DRAM

IC 202

MSM51V4265EP-70TS

WMA DECODER

TC74VHCT08AFT

IC 702

XWINT, XWAIT,

FOK

18

1

BDATA,BSCK, CD5VON,DSPMUTE, DSPOK,CDA/D

IC 502

BA25BC0WFP

+2.5V REGULATOR

V2R5

2

4

VD2

1

4

Q701

17

ADENA

14 VCC

VDD

15

5

1 4

14

CLAMP

93

VD2

VDCONT

IC 501(1/2)

UPD61002GC

CN902

3

38

XTAL1

MCK

3635

X2 X1

X701

DOUT,LRCK,

BCK

ASENBO

85

MUTE

XIN

XOUT

PEE

22

38

80

28

27

79

SYSTEM CONTROLLER

IC 601(2/2)

PD5854A

CN401

1

2

BUS-

BUS+

BUS+L

BUS-L

TX

RX

IPPW

swvdd

BU

CN701

Q781

Q782

TUNER AMP UNIT

13

X601

11

VST,VC

TUN L

BUS+L

BUS-L

CD L

33

DPDT

34

KYDT

1

SYSPW

41

ILMPW

39

dsens

A

5

8

1

7

CN101

11

BUZZER

22

21

7

16

23

IC 101

HA12187FP

IP-BUS DRIVER

1

2

8

6

5

TX

RX

IPPW

BU

Q101

TUN 3.3V

SYS 8.5V

VDD

ANTENNA

CDDAL

90

OUTLV

LEVEL

BU

Q8

20

LCDPW

BZ 601

35

ROT136ROT0

VDD

BRST,BRXEN,BSRQ

BDATA,BSCK, CD5VON,DSPMUTE, DSPOKOUT,CDA/D

EJTIN

42

FLPILM

40

VD

Q783

24

VD

NJM4580M

IC 751

IC 731

PCM1716E-3

16

DAC

DOUT,LRCK,BCK

dacrst,DACMD,

DACMC,DACML

CN702

68

KEYD

92

KEYAD

BU

Q801

DAC5V REGULATOR

Q802

NJM2872F33

1

5

TC7S04FU

IC 772

24

TC7SU04FU

IC 771

24

X771

55

DAC5V

CD5VON

3

IC 801

MCK3.3V REGULATOR

5

3

MCK

57

CD5VON

FMRF

ANT adj

RF adj

FM ANT

T51

CF52

CF51

RFGND

OSCGND

DGND

AUDIOGNDNCVCC

VDD_3.3

3.3V

2.5V

IC 4

3.3V 2.5V

←

IC 2

2.5V

WC

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

212 1522 16 4 17

IC 1

3.3V

AM ANT

FMRF

ATT

LPF

OSC

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

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

13

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

10

1

BSENS

ASENS

VDD

BU

72

73

10

FL

11

RL

85

ILB

SWDVDD

23

21

3

5

FL-

FL+

RL-

RL+

ACC

IN3-L

42

IN4+L

43

IN4-L

44

IN2-L

41

FLIN

14

RLIN

12

22 4

RESET

POWER AMP

IC 601(1/2)

PD5854A

IC 131

PML009A

IC 651

IC 301

PAL007A

reset

VDD

Q901

Q931

SYSPW

ELECTRONIC VOLUME/

SOURCE SELECTOR

STBYMUTE

Q891

13

X601

11

2

VST,VCK,VDT

TUN L

BUS+L

BUS-L

CD L

DPDT

KYDT

SYS 8.5V

BU

Q911

Q912

1

BU

Q301

MUTE

FL

PL

Q352

12

PL

7

2

11

14

7

2

11

14

CN1950

CN1951

4

2

10

8

PANEL UNIT

MUTE

S841

DSENSE

SYSTEM CONTROLLER

Q951

VDD

TELIN

8

25

B.REMOTE

FL-

FL+

RL-

RL+

VDD REGULATOR

BACKUP SENSE

ACC SENSE

TELEPHONE MUTE

SYS 8.5V REGULATOR

14

8

6

5

7

16

9

11

14

8

6

5

7

16

9

11

15 15

B

CN981

Q502

BU

CN351

BACK UP

GND

RR

+

RR

FR

+

FR

FL

+

FL

RL

+

RL

-

ACC

GND

BACK

UP

B.

REM

FUSE

10A

ACC

TELMUTE

B.REM

ldet

SL

tunce@

TUNPCE1

TUNPDI

TUNPDO

17

95

69

70

98

99

TUNPCK

100

ce@

CE1

Q402

Q401

RDS_CK

RDS_LOCK

45

rck

16

RDT

46

rds%&k

44

rdslk

RDS_DATA

RDS_HSLK

4

8

BA033FP

IC 921

13

SYS 8.5V

TUN 3.3V

TUNER 3.3V REGULATOR

Q913

DO

DI

CK

Q902

DALMON

67

BU

6,20

Q501

10 10 5

Q351

RL

Q353

2

CN352

PL

FL

RL

Q941

isens

81

ILM SENSE

ILM

12

IN1-L

40

CDDAL

NJM4558MD

IC 752

67

90

1

SEL_OUT_L

LEVEL INDICATOR

BU

Q872

Q871

ILB

Q881

13 13 9

12 12 7

ROT1

ROT0

VDD

ILM

S-80835CNMC-B8U

NON-FAD/SW L

FRONT L

REAR L

42

8

S1970

EJECT

9

BU

5

6

5

6

40

CN841

Q841

5

PA2028A

IC 381

1411

HIGH OUTPUT

169

187

CN821

1

3

2

68

92

KEYD KEYAD

DAC5V

53

MIC

13

MICIN

MICROPHONE

MIC 231

ILB

SW5V

IC 1801

PD2068B

LCD DRIVER/

KEY CONTROLLER

KEY MATRIX

9

11

KEY DATA

VDD

5

CN1801

KEYBOARD UNIT

3

5

DPDT

KYDT

IC 1804

TSOP4840SB1

REMOTE CONTROL SENSOR

OPT IN

4 1

11

REMIN

21

20

SI

SO

LCD

C

8

BL+B

Q1801

DIMMER

DIM

7

ILLUMINATION

X1

X0

2

X1801

3

S1814

3

2

1

4

6

ROT1

ROT0

ROT1

ROT0

S-80834CNMC-B8T

IC 1802

2

1

reset

8

RESET

LCD BACKLIGHT

kst#

kdt@

4

5

VOLUME/SRC

14

1

234

12

34

F

E

D

C

B

A

DEH-P77MP/EW

D

C

CN1801

CN901

CN902

PANEL UNIT

B

FM/AM TUNER UNIT

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 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.

EJECT

GRILLE

FM

AM

IP

CDDA

MP3,WMA

A B

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-b

A-a

Large size

A-b

SCH diagram

Guide page

A-a A-b

A-a

A-b

Detailed page

A-a

15

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

4

6

5

7

8

2

1

3

4

3

2

1

FRONT R CH

FRONT L CH

SUBWOOFER R CH

SUBWOOFER L CH

BACKUP

GND

RL—

RL+

FL—

FL+

B.REM

ILL

ACC

TEL

CEK1208 10A

RR—

RR+

FR—

FR+

>

TUNER AMP UNIT

A

600µH

REAR L CH

REAR R CH

RR

+

RR

FR

+

FR

FL

+

FL

RL

+

RL

-

ACC

GND

ILL

BACK

UP

B.

REM

M:-16.5dBs M:-27.0dBs IP: +2.2dBs

FM:+4.6dBs

AM: -3.9dBs

IP:+8.3dBs

CD:+8.1dBs

(CDDA,MP3,WMA)

FM:+30.6dBs

AM:+22.1dBs

IP:+34.3dBs

CD:+34.1dBs

(CDDA,MP3,WMA)

FM:+15.1dBs AM: +6.6dBs

IP:+18.8dBs

CD:+18.6dBs

(CDDA,MP3,WMA)

A

A-b

16

1

234

12

34

F

E

D

C

B

A

DEH-P77MP/EW

A-a

A-b A-a

A-a

A-b

2

1

D

CN901

CN902

FM:-16.5dBs

AM:-27.0dBs

IP: +2.2dBs

CDDA: +5.0dBs

MP3,WMA: 0dBs

17

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

A-a

A-b A-a

A-b

A-a

B

3

4

C

CN1801

PANEL UNIT

B

FM/AM TUNER UNIT

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

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.

EJECT

GRILLE

18

1

234

12

34

F

E

D

C

B

A

DEH-P77MP/EW

A-a

A-b

2

1

4

6578213

432

1

FRONT

R CH

FRONT

L CH

SUBWOOFER

R CH

SUBWOOFER

L CH

TUNER AMP UNIT

A

REAR

L CH

REAR

R CH

FM:+4.6dBs

AM: -3.9dBs

IP:+8.3dBs

CD:+8.1dBs

(CDDA,MP3,WMA)

FM:+15.1dBs

AM: +6.6dBs

IP:+18.8dBs

CD:+18.6dBs

(CDDA,MP3,WMA)

19

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

A-a

A-b

3

4

BACKUP

GND

RL—

RL+

FL—

FL+

B.REM

ILL

ACC

TEL

CEK1208

10A

RR—

RR+

FR—

FR+

>

600µH

RR

+

RR

-

FR

+

FR

-

FL

+

FL

-

RL

+

RL

-

ACC

GND

ILL

BACK

UP

B.

REM

FM:+30.6dBs

AM:+22.1dBs

IP:+34.3dBs

CD:+34.1dBs

(CDDA,MP3,WMA)

20

1

234

12

34

F

E

D

C

B

A

DEH-P77MP/EW

C

RESET

REMOTE

CONTROL

SENSOR

LCD DRIVER / KEY CONTROLLER

3.3 KEYBOARD UNIT

21

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

C

SOURCE/ VOLUME

TA

SELECT

B

C

KEYBOARD UNIT

CN1951

22

1

234

12

34

F

E

D

C

B

A

DEH-P77MP/EW

SWITCHES: CD CORE UNIT

S901 : HOME SWITCH.....ON-OFF

S902 : CLAMP SWITCH....ON-OFF

S903 : DSCSNS SWITCH....ON-OFF

S904 : 12EJ SWITCH....ON-OFF

S905 : 8EJ SWITCH....ON-OFF

The underlined indicates the switch position.

M1 CXB6007

M2 CXB8933

LOADING/CARRIAGE

MOTOR

SPINDLE MOTOR

CN101

PICKUP UNIT(SERVICE)(P10)

1

8

6

5

0

!

2

3

7

@

#

F

T

F

C

S

T

F

C

S

T

F

C

S

T

F

T

S

C

S

C

F

T

3.4 CD MECHANISM MODULE(GUIDE PAGE)

D

D-a

23

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

D

CD CORE UNIT (S10MP3)

A

CN701

CN901

CN902

A

CN702

4

9

$

%

^

&

*

F

T

C

S

SIGNAL LINE FOCUS SERVO LINE

TRACKING SERVO LINE

CARRIAGE SERVO LINE

SPINDLE SERVO LINE

D-b

D

24

1

234

12

34

F

E

D

C

B

A

DEH-P77MP/EW

A-a

D-b D-a

D-a

D-b

CN101

PICKUP UNIT(SERVICE)(P10)

0

!

#

F

T

F

C

S

T

F

C

S

T

F

T

25

5

6

7

8

F

E

D

C

B

A

5

6

7

8

DEH-P77MP/EW

A-a

D-b D-a

D-a

D-b

1

2

3

4

SWITCHES:

CD CORE UNIT

S901 : HOME SWITCH.....ON-OFF

S902 : CLAMP SWITCH....ON-OFF

S903 : DSCSNS SWITCH....ON-OFF

S904 : 12EJ SWITCH....ON-OFF

S905 : 8EJ SWITCH....ON-OFF

The underlined indicates the switch position.

M1 CXB6007

M2 CXB8933

LOADING/CARRIAGE

MOTOR

SPINDLE MOTOR

1

8

6

5

2

3

7

@

C

S

T

F

T

S

C

S

C

Pioneer DEHP-77-MP Service manual

SAFETY INFORMATION

CONTENTS

1. SPECIFICATIONS

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

2.2 EXTERIOR

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

3.3 KEYBOARD UNIT

3.4 CD MECHANISM MODULE(GUIDE PAGE)