PIONEER DEH-3750MP, DEH- 3770MP, deh-3770 Service Manual

ORDER NO.

CRT3399

DEH-3750MP/XU/GS

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

DEH-3750MP/XU/GS

DEH-3770MP/XU/CS

DEH-3750MP/XU/CN

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

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. DEC. 2004 Printed in Japan

5

6

7

8

1. SPECIFICATIONS

A

B

C

D

E

F

		DEH-	3750MP/XU/GS				5
5	6				7	8

1

2

3

4

A

B

C

D

E

F

6		DEH-3750MP/XU/GS
1	2		3	4

1	2	3	4
2. EXPLODED VIEWS AND PARTS LIST
NOTES : • 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.)

2.1PACKING

B	6	1	16
4
5	7	2
	9
	10
8			12
18

C

14

11

17

15

D

13

E

F

8		DEH-3750MP/XU/GS
1	2		3	4

		5	6			7	8
(1) PACKING SECTION PARTS LIST
Mark No.		Description	Part No.	Mark No.		Description	Part No.
	1	Accessory Assy	CEA4850		13	Contain Box	See Contrast table(2)
	2	Screw Assy	CEA3849		14	Protector	XHP7004	A
					15	Protector	XHP7003
	3	•••••
	4	Screw	CBA1650
*	5	Polyethylene Bag	CEG-127		16-1	Owner's Manual	See Contrast table(2)
					16-2	Installation Manual	See Contrast table(2)
	6	Screw	CRZ50P090FTC		16-3	Caution Card	See Contrast table(2)
	7	Screw	TRZ50P080FTC	*	16-4	Warranty Card	See Contrast table(2)
*	8	Polyethylene Bag	CEG-158		17	Cord Assy	XDE7008
	9	Handle	CNC5395
	10	Bush	CNV3930		18	Case Assy	YXB5005
				*	19	Battery	CEX1065
	11	Polyethylene Bag	CEG-162		20	Remote Control Unit	CXC3173	B
	12	Carton	See Contrast table(2)

(2) CONTRAST TABLE

DEH-3750MP/XU/GS, DEH-3770MP/XU/CS and DEH-3750MP/XU/CN are constructed the same except for the following:

Mark		No.		Description	DEH-3750MP/XU/GS	DEH-3770MP/XU/CS	DEH-3750MP/XU/CN
		12	Carton		YHG5020	YHG5019	YHG5023
		13	Contain Box		YHL5020	YHL5019	YHL5023
		16-1	Owner's Manual		YRD5021	YRD5025	YRB5011
		16-2	Installation Manual		YRD5024	YRD5026	YRB5013
		16-3	Caution Card		CRP1310	CRP1310	Not used
*		16-4	Warranty Card		Not used	Not used	ARY7046
Owner's Manual,Installation Manual
Part No.					Language
YRD5021				English, Traditional Chinese, Arabic
YRD5024				English, Traditional Chinese, Arabic
YRD5025				English, Spanish, Portuguese(B)
YRD5026				English, Spanish, Portuguese(B)
YRB5011				Casual Chinese
YRB5013				Casual Chinese

C

D

E

F

		DEH-	3750MP/XU/GS				9
5	6				7	8

1

2

2.2 EXTERIOR

A

13

B

42

43

33 53

C 71

2

2

D 12

14

E

F

36

35

41

2

5

54

10

7574

31

44 31

B

52

46

		50
	76	51
	48 47

39	49
	37

40 38

32 34

2

3

17 67 27

68

17

68

23 B

25

15

A

B

4 4

C

3 4

		60	62
			57
	61
66			64
			63
65
			56

31

31

45

16

30 28

22

20 21

A

4

65

59

C

55 5865

6

9

A

8

19

69

18

70

26

29

7

10		DEH-3750MP/XU/GS
1	2		3	4

	5	6
(1) EXTERIOR SECTION PARTS LIST
Mark No.	Description	Part No.
1	•••••
2	Screw	BSZ26P060FTC
3	Screw	BSZ30P060FTC
4	Screw	BSZ30P200FTC
5	Cable	YDE5008
6	Case	CNB2793
7	Holder	CNC8659
8	Earth Plate	CNC8915
9	Cushion	CNM8890
10	Panel	See Contrast table(2)

11•••••

12CD Mechanism Module(S10.1AACA) See Contrast table(2)

13	Cord Assy	XDE7008
14	Insulator	XNM7106
15	Insulator	YNM5012
16	Tuner Amp Unit	See Contrast table(2)
17	Screw	ASZ26P060FTC
18	Screw	BPZ26P080FTC
19	Screw	BSZ26P160FTC
> 20	Fuse(10A)	CEK1208
21	Pin Jack(CN352)	CKB1057
22	Plug(CN901)	CKM1376
23	Connector(CN721)	CKS3837
24	•••••
25	Connector(CN831)	CKS4944
26	Antenna Jack(CN401)	CKX1056
27	Holder	CND1328
28	Heat Sink	CNR1668
29	Holder	CND1054
30	Holder	YNC5004
31	Screw	BPZ20P100FZK
32	Spring	CBH2210
33	Knob(VOLUME)	See Contrast table(2)
34	Button(DETACH)	YAC5027
35	Button(SOURCE)	YAC5030
36	Button(1-6, LOCAL/BSM)	YAC5031
37	Button(AUDIO, LOUDNESS)	YAC5032
38	Button(BAND)	YAC5033
39	Button(EJECT, DISPLAY)	YAC5034

	7	8
Mark No.	Description	Part No.
40	Button(DOWN, RIGHT)	See Contrast table(2)
41	Button(UP, LEFT)	See Contrast table(2)
42	Button(CLOCK, EQ)	YAC5039
43	Spring	YBL5001
44	Cover	YNS5038
45	Connector(CN1801)	CKS4943
46	Sheet	CNM7932
47	Connector	CNV7369
48	LCD(LCD1801)	See Contrast table(2)
49	Holder	YNC5005
50	Lighting Conductor	YNV5004
51	Lighting Conductor	YNV5005
52	Rubber Contact	YNV5006
53	Grille Unit	See Contrast table(2)
54	Chassis Unit	YXA5080
55	Button(DETACH)	CAC4836
56	Spring	CBH1835
57	Spring	CBH2208
58	Spring	CBH2367
59	Bracket	CNC6791
60	Holder	CNC8042
61	Cover	CNM6276
62	Arm	CNV4692
63	Arm	CNV4728
64	Arm	CNV5576
65	Screw	IMS20P030FZK
66	Panel	YNS5046
67	IC(IC921)	NJM2388F84
68	Transistor(Q911, 991)	2SD2396
69	IC(IC302)	PAL007A
70	FM/AM Tuner Unit(Z401)	CWE1646
71	Sheet	See Contrast table(2)
72	Remote Control Unit	CXC3173
73	Cover	CNS7068
74	Cushion	YNM5004
75	IC(IC1802)	TSOP4840SB1
76	Sheet	See Contrast table(2)

A

B

C

D

E

F

		DEH-	3750MP/XU/GS				11
5	6				7	8

1

2

3

4

(2) CONTRAST TABLE

DEH-3750MP/XU/GS, DEH-3770MP/XU/CS and DEH-3750MP/XU/CN are constructed the same except for the following:

A	Mark	No.	Description	DEH-3750MP/XU/GS	DEH-3770MP/XU/CS	DEH-3750MP/XU/CN
		10	Panel	YNS5045	YNS5045	CNS8046
		12	CD Mechanism Module(S10.1AACA)	CXK5668	CXK5668	CXK5669
		16	Tuner Amp Unit	YWM5037	YWM5073	YWM5039
		33	Knob(VOLUME)	YAA5002	YAA5002	YAA5001
		40	Button(DOWN, RIGHT)	YAC5038	YAC5038	YAC5035
		41	Button(UP, LEFT)	YAC5037	YAC5037	YAC5036
		48	LCD(LCD1801)	YAW5027	YAW5015	YAW5027
		53	Grille Unit	YXA5082	YXA5051	YXA5052
		71	Sheet	Not used	Not used	CNM9404
B		76	Sheet	YNM5011	Not used	YNM5011

C

D

E

F

12		DEH-3750MP/XU/GS
1	2		3	4

1	2	3	4
2.3 CD MECHANISM MODULE
42	5
A	13		81
	34
5		15	22
	5		E
13			F
		93

					13		92
					A
	44				B	82
		5	C	13	86	83	68
		54	D
1			52
B		53			86		28
		37					4
				4	71	23
				1
55
	5	36				87	38
					50
		4		73
		1
2			18 29		72
		64	51		10		75
	47
C				1
		2		I	76 B		59
24		1					49
		7

61	E

2	M	1		F
63			A	Q
	1			27
2				H
		G
21	L		J

M

57	1	N	O		D
		R		16
					12
79
	58
D			1		3	78
		1			33
			P
2
62		2			20
						80

1	40	1

	1GEM1024		1	39
	2GEM1045
				1	25
	3GEM1035		P		69
		56	19	30	70
E					14
	R			41
				31
91	C			65
			1		85
F	3	2			66

26

G

I H

28

45

J

23

K

77	90
		48
		8
67
		17
	60	46
		6
N		60
		11 89
L	43	10
	K
		74
		85
C		Q
		14

35

O

31

85

14		DEH-3750MP/XU/GS
1	2		3	4

	5	6					7		8
CD MECHANISM MODULE SECTION PARTS LIST
Mark No.	Description	Part No.			Mark No.			Description	Part No.
1	CD Core Unit(S10.1)	CWX3096		50			Gear		CNV8379
2	Connector(CN101)	CKS4182
3	Connector(CN901)	CKS4017		51			Gear		CNV8380
4	Screw	BMZ20P035FTC		52			Gear		CNV8381
5	Screw	BSZ20P040FTC		53			Gear		CNV8382
				54			Gear		CNV8383
6	Screw(M2x4)	CBA1362		55			Gear		CNV8384
7	Screw(M2x3)	CBA1824
8	Screw(M2x3)	CBA1825		56			Rack		CNV8385
9	•••••			57			Arm		CNV8386
10	Washer	CBF1038		58			Arm		CNV8387
				59			Guide		CNV8388
11	Washer	CBF1060		60			Roller		CNV8189
12	Spring	CBH2390
13	Spring	CBH2606		61			Gear		CNV8389
14	Spring	CBH2607		62			Arm(GS, CS)		CNV8391
15	Spring	CBH2608					Arm Unit(CN)		CXC3865
				63			Arm(GS, CS)		CNV8390
16	Spring	CBH2609					Arm Unit(CN)		CXC3864
17	Spring	CBH2610		64			Arm		CNV8392
18	Spring	CBH2735		65			Damper		CNV7313
19	Spring	CBH2612
20	Spring	CBH2613		66			Damper		CNV7314
				67			Arm		CNV8394
21	Spring	CBH2614		68			Arm		CNV8395
22	Spring	CBH2615		69			Guide		CNV8396
23	Spring	CBH2616		70			Guide		CNV8397
24	Spring	CBH2617
25	Spring	CBH2620		71			Holder		CNV8398
				72			Arm		CNV8402
26	Spring	CBH2621		73			Gear		CNV8400
27	Spring	CBH2641		74			Damper		CNV7618
28	Spring	CBH2642		75			Motor Unit(M1)		CXC4440
29	Spring	CBH2643
30	Spring	CBH2659		76			Chassis Unit		CXC2318
				77			Screw Unit		CXB8729
31	Spring	CBH2688		78			Gear Unit		CXC2397
32	•••••			79			Arm Unit		CXC2316
33	Shaft	CLA4441		80			Arm		CND1896
34	Frame	CND2443
35	Frame	CNC9963		81			Arm		CND1894
				82			Motor Unit(M2)		CXB8933
36	Bracket	CND2712		83			Bracket		CNC9985
37	Bracket	CND1895		84			•••••
38	Arm	CNC9968		85			Screw(M2x5)		EBA1028
39	Arm	CND1909
40	Lever	CND2032		86			Screw		JFZ20P020FTC
				87			Screw		JGZ17P022FTC
41	Lever	CNC9984		88			•••••
42	Sheet	CNM8134		89			Washer		YE20FTC
43	Collar	CNV8447		90			Pickup Unit(P10)(Service)		CXX1647
44	Guide	CNV8448
45	Arm	CNV8403		91			Screw		IMS26P030FTC
				92			Spring		CBL1635
46	Rack	CNV8374		93			Clamper		CNV8372
47	Holder	CNV8376
48	Holder	CNV8377
49	Arm	CNV8378
				DEH-	3750MP/XU/GS					15
	5	6						7	8

A

B

C

D

E

F

1

2

3

4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

A TUNER AMP UNIT

VDD

FM/AM TUNER UNIT

7

6

13

5

10

9

8

11

14

18

19

20

21

WC

CE2

VDD

SL

DI

CK

CE1

NC

DO

NC

NC

NC

NC

ROM_

IC 3 EEPROM

IC 5

5.0V

5V

← 3.3V

OSC

LPF

B

ANTENNA

CN401

AM ANT

FMRF

1

1

ATT

2

Rch 24

IC 2

FM ANT

IC 1

2.5V

3.3V

3

ATT

Lch 23

FMRF

MIXER, IF AMP

DET, FM MPX

RF adj

ANT adj

T51

CF52

CF51

RFGND

OSCGND

AUDIOGND

VDD 3.3

IC 4

C

DGND

VCC

3.3V 3.3V ←

2.5V 2.5V

TUN L

2

NC

CDL

2

12

15

22

16

4

17

3

TUN 3.3V

SYS 8V

C CD CORE UNIT(S10.1)

PICKUP UNIT

(P10)(SERVICE)

V3R3D

LASER

CN101

DIODE

LD- 15

15

Q101

142

LD

IC 201

UPD63763GJ

MD

143

CN901

CN721

5

5

PD

RF AMP, CD DECODER,

D

HOLOGRAM

AC,BD

LOUT

31

LOUT

10

14

CD L

MP3 AND WMA DECODER,

UNIT

E,F

DIGITAL SERVO/DATA PROCESSOR

FOCUS ACT.

FOP

1

1

FOP

MONITOR

TRACKING ACT.

TOP

4

4

TOP

SYSTEM

DIODE

LD+

14

14

FD,TD

SD,MD

X701

IC

12

FOP

P

13

TOP

12

13

M1

CD

X1

X2

M

MICRO

DRIVER

SPINDLE

MOTOR

16

SOP

LOEJ

22 53

COMPUTER

14

RESET

15

9

RESET

RST

A

15

SOM

LOEJ

reset

18

M2

M

LCOP

CONT

9

47

CONT

LOADING/CARRIAGE

17

LCOM

MOTOR

IC 301

IC 701

BRST,BRXEN,BSRQ

XSI,XSCK,CLAMSW,VDCONT,XAO

BA5835FP

PE5454A

BDATA,BSCK

Q991

VD

VD1

32

VD

3

21

Q992

B.UP

12EJ

4

20

4

3

E

31

8EJ

VDCONT 49

30

DSCSNS

97

HOME

CD3VON

46

5

VDCONT 19

5

VDCONT

S904

S905

S903

S901

3V REGULATOR

12EJ

8EJ

DSCSNS HOME

3VDD

3

IC 703

2

VDD

5

19

VDD

V3R3D

3

IC 203

1

VD2

S-812C33AUA-C2N

NJM2885DL1-33

VDD

3.3V REGULATOR

VD2

Q993

2

22

VD2

CD3VON

Q994

1

23

CD3VCONT

F

16

DEH-3750MP/XU/GS

1

2

3

4

5

6

7

8

A

CN352 REAR OUTPUT

RESET

R Lch

2

IC 961

A

RST

VDD

Q352

S-80834CNY

60

3

RESET

TUNPDO

11

TUNPDI

TUNPDI

12

TUNPDO

TUNPCK

13 TUNPCK

VDD REGULATOR

CE1

56

TUNPCE1

Q911

CE2

55

TUNPCE2

VDD

B

Q912

SYSTEM CONTROLLER

IC 601(1/2)

32

PE5460A

DALMON

BACKUP SENSE

B.UP

CN901

BSENS

64

BSENS

1

FUSE

1

BACK UP

10A

Q931

63

ASENS

ACC

ASENS

3

3

ACC

ACC SENSE

2

2

GND

B.UP

POWER AMP

20 6

ELECTRONIC VOLUME/

VCC VCC

TUN L

2

SOURCE SELECTOR

10

14

IN1-L

F Lch

FLIN

IC 302

FL-

23

10

10

FL-

C

IC 151

21

PAL007A

FL+

12

12

PML003AM

FL+

CDL

3

11

12

3

R Lch

RLIN

IN2-L

RL-

9

9

RL-

5

RL+

11

11

RL+

22

MUTE

STBY

B. REM

25

B. REM

6

6

B. REM

4

VST

SYS8V

VDT,

MUTE

TUN 3V REG.

SYS 8V REG.

VCK,

Q453

IC 981

IC 921

TU 3.3V

B.UP

BA33BC0FP

NJM2388F84

MUTE

Q452

MUTE

48

SYSPW

43

SYSPW

SYSPW

D

SYSTEM CONTROLLER

IC 601(2/2)

PE5460A

X1

70

X601

X2

69

12.58291MHz

B KEYBOARD UNIT

B.UP

Q801

CN831

CN1801

SWVDD 3

VDD

3

SWVDD

SWVDD

21

SWVDD

E

SOURCE

66

SOURCE

4

SRC

4

SOURCE

DSENS

65

DSENS

10

DSENS 10

Q821

ILM

B.UP

5

5

REM.CON.

Q822

3

IC1802

1

KEY MATRIX

22

ILMPW

TSOP4840SB1

IL1801

SWVDD

S1827

36

ROT1

LAMP

ROT1

6

6

ROT0

35

7

ROT0

7

17

VOLUME

REM

KEY DATA

XO

22

X1801

DPDT

9

8

DPDT

8

17

DPDT

XI

23

5MHz

LCD DRIVER/

F

8

KYDT

9

KYDT

9

19

KYDT

KEY CONTROLLER

10

VLCD

IC 1801

LCD1801

PD6340A

57

VDD

DEH-3750MP/XU/GS

7

17

5

6

8

1

2

3

4

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 CN901
				1	2	3	4	5	6	7	8	9	10 11 12 13 14 15 16 17 18 19 20 21 22 23
		Large size
A-a	A-b	SCH diagram
A-a	A-b	Guide page
A-a	A-b	Detailed page
				471/16

B

C

GS,CN	STRKEY1	DISCSENS	AVREF1	AVDD	VSS

source

dsens

bsens

asens

D	ADPW
	SYSTEM CONTROLLER

UNIT	swvdd
FM/AMTUNER		brst	brxen
	BDATA

E

ANTENNA

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.

		For resistors and capacitors in the circuit diagrams, their resistance values or		B
		capacitance values are expressed in codes:		CN1801
		Ex. *Resistors
		Code	Practical value
		123	12k ohms
		103	10k ohms
F		*Capacitors
		Code	Practical value
		103	0.01uF
		101/10	100uF/10V
	A	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.
	18		DEH-3750MP/XU/GS
		1	2	3	4

isens

STRKEY2

RECEIVE bsrq

source

dsens

bsens

asens

TROLLER

isens

STRKEY2

RECEIVE bsrq

5

6

7

8

A-b				A
		A	TUNER AMP UNIT

>

CEK1286

3A

332/16	FM:	29.6dB
	AM:	19.1dB

CD: 36.45dB

DEH-3750MP/XU/GS

5

6

7

REAR

L CH

REAR

R CH

B

C

CEK1208
>	D
10A

E

F

A

19

8

1

A

A-b

B

	C	19 20 21 22 23
	CN901	12 13 14 15 16 17 18
	C	10 11
		9
	-b	8
		7
	A	6
	-a
		5
	A	4
		3
	D	1 2

E

F

A-a

20

1

2

3

4

asens bsens dsens source

VSS

AVDD

AVREF1

DISCSENS

STRKEY1

GS,CN

471/16

DEH-3750MP/XU/GS

2

3

4

asens bsens dsens source

VSS AVDD AVREF1

DISCSENS STRKEY1

GS,CN

5

6

7

8

A

			1	2	A-b
isens	STRKEY2		bsrq
			RECEIVE
CONTROLLER
SYSTEM			brxen		B
			brst
ADPW		BDATA	swvdd

C

							A-b
					CN1801		A-a
				B			D
	ANTENNA	:NOTE resistor.aindicatesSymbol madeisdifferentiationNo between chip resistors and resistors.discrete	capacitor.aindicatesSymbol madeisdifferentiationNo between chip capacitors and capacitors.discrete	values or	*ResistorsEx. valuePracticalCode ohms12k123 ohms10k103	*Capacitors valuePracticalCode 0.01uF103 100uF/10V101/10	someonfoundmarkThe>component parts indicates safetytheofimportancethefactor of the part. replacing,whenTherefore,be sure to use parts of designation.identical
				capacitorsandresistorsForin the circuit diagrams, their resistance expressedarevaluescapacitancein codes:
							E
	FM/AMTUNERUNIT						F
							A-a
	DEH-3750MP/XU/GS	7					21
5	6					8

1

A

B UNIT

AMPTUNER

A

C

A-a A-b

D

E

F

A-b

22

1

2

3

4

REAR L CH		REAR R CH

3A > CEK1286

29.6dB	19.1dB	36.45dB
FM: AM: CD:
332/16

DEH-3750MP/XU/GS

2

3

4

5

6

7

CEK1208

>

10A

1

DEH-3750MP/XU/GS

5

6

7

8

A

B

C

A-a A-b

D

E

F

2 A-b

23

8

1

3.3 KEYBOARD UNIT

A

B

C

D

E

GS,CN : YAW5027

F

B

24

1

2

3

4

LCD DRIVER/

KEY CONTROLLER

DIS

CS : YAW5015

DEH-3750MP/XU/GS

2

3

4