PIONEER DEH-P3950 Service Manual

ORDER NO.

CRT3824

DEH-P3950MP/XU/ES

CD RECEIVER

DEH-P3950MP/XU/ES

DEH-P3950MP/XU/CN5

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

Model No.	Order No.					Mech.Module					Remarks
CX-3195	CRT3815					S10.5COMP2					CD Mech. Module : Circuit Descriptions, Mech. Descriptions, 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 2006

K-ZZA. OCT. 2006 Printed in Japan

1

2

3

4

SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.

AQualified 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.

- 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.

B

Caution:

1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept. 2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replaced only with the same or equivalent type recommended by the manufacture.

Discord used batteries according to the manufacture's instructions.

C

- 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

during power-on mode may damage the ICs inside

D

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.

5.Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic induction.

E

F

2		DEH-P3950MP/XU/ES
1	2		3	4

5

6

7

8

[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.

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.

A

B

C

D

E

F

		DEH-	P3950MP/XU/ES				3
5	6				7	8

	1	2	3	4
	CONTENTS
	SAFETY INFORMATION.....................................................................................................................................			2
	1. SPECIFICATIONS ............................................................................................................................................			5
A	2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................			8
	2.1 PACKING			8
	2.2 EXTERIOR...............................................................................................................................................			10
	2.3 CD MECHANISM MODULE.....................................................................................................................			12
	3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................			14
	3.1 BLOCK DIAGRAM ...................................................................................................................................			14
	3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)..............................................................................			16
	3.3 KEYBOARD UNIT....................................................................................................................................			22
	3.4 CD MECHANISM MODULE(GUIDE PAGE) ............................................................................................			24
	4. PCB CONNECTION DIAGRAM .....................................................................................................................			32
	4.1 TUNER AMP UNIT...................................................................................................................................			32
	4.2 KEYBOARD UNIT....................................................................................................................................			36
B	4.3 CD CORE UNIT(S10.5COMP2)...............................................................................................................			38
	5. ELECTRICAL PARTS LIST ............................................................................................................................			40
	6. ADJUSTMENT ...............................................................................................................................................			45
	6.1 CD ADJUSTMENT...................................................................................................................................			45
	6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT ....................................................			47
	6.3 ERROR MODE ........................................................................................................................................			49
	6.4 SYSTEM MICROCOMPUTER TEST PROGRAM ...................................................................................			50
	7. GENERAL INFORMATION.............................................................................................................................			51
	7.1 DIAGNOSIS .............................................................................................................................................			51
	7.1.1 DISASSEMBLY .....................................................................................................................................			51
	7.1.2 CONNECTOR FUNCTION DESCRIPTION..........................................................................................			54
C	7.2 PARTS......................................................................................................................................................			55
	7.2.1 IC ..........................................................................................................................................................			55
	7.2.2 DISPLAY ...............................................................................................................................................			65
	7.3 OPERATIONAL FLOW CHART ...............................................................................................................			67
	8. OPERATIONS ................................................................................................................................................			68

D

E

F

4		DEH-P3950MP/XU/ES
1	2		3	4

5

6

7

8

1.SPECIFICATIONS

-DEH-P3950MP/XU/ES

A

B

C

D

E

F

		DEH-	P3950MP/XU/ES				5
5	6				7	8

1

2

3

4

- DEH-P3950MP/XU/CN5

A

B

C

D

E

F

6		DEH-P3950MP/XU/ES
1	2		3	4

5

6

7

8

A

B

C

D

E

F

		DEH-	P3950MP/XU/ES				7
5	6				7	8

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 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.)

2.1PACKING

	19
B	12

16

17

14

11

C

15

2

10	1
9	13

D

18

9

5 3

8

4

7

6

E

F

8		DEH-P3950MP/XU/ES
1	2		3	4

		5	6		7	8
(1) PACKING SECTION PARTS LIST
Mark No.		Description	Part No.	Mark No.	Description	Part No.
	1	Cord Assy	CDP1017	13	Protector	CHP3279
	2	Accessory Assy	CEA6708	14	Protector	CHP3280
	3	Screw Assy	CEA3849	15	Case Assy	See Contrast table(2)
	4	Screw	CBA1650
*	5	Polyethylene Bag	CEG-127	16	Remote Control Assy	CXC5719
				17	Carton	See Contrast table(2)
	6	Screw	CRZ50P090FTC	18	Contain Box	See Contrast table(2)
	7	Screw	TRZ50P080FTC	19-1	Owner's Manual	See Contrast table(2)
	8	Polyethylene Bag	CEG1160	19-2	Owner's Manual	See Contrast table(2)
	9	Handle	CND3707
	10	Bush	CNV3930	19-3	Installation Manual	See Contrast table(2)
				19-4	Caution Card	CRP1310
	11	Polyethylene Bag	CEG1373	* 19-5	Warranty Card	See Contrast table(2)
*	12	Battery	CEX1065

A

B

(2) CONTRAST TABLE

DEH-P3950MP/XU/ES and DEH-P3950MP/XU/CN5 are constructed the same except for the following:

Mark		No.		Description	DEH-P3950MP/XU/ES	DEH-P3950MP/XU/CN5
		15	Case Assy		CXB3520	Not used
		17	Carton		YHG5116	YHG5117
		18	Contain Box		YHL5116	YHL5117
		19-1	Owner's Manual		YRD5079	YRB5033
		19-2	Owner's Manual		YRD5080	Not used
								C
		19-3	Installation Manual		YRD5081	Not used
*		19-5	Warranty Card		Not used	ARY7046
Owner's Manual,Installation Manual
Part No.					Language
YRD5079				English, Spanish, Portuguese(B)
YRD5080				Traditional Chinese, Arabic
YRD5081				English, Spanish, Portuguese(B), Traditional Chinese, Arabic
YRB5033				Simplified Chinese
								D

E

F

		DEH-	P3950MP/XU/ES				9
5	6				7	8

		1			2			3				4
	2.2 EXTERIOR
A												14
								16
											18
		5					22					15
												17
					42
					53		43					13
												C
								43
					B
				62				43			11	12
				61
B		47 48							43
			47
	45	51
								58
		49
							68 63	57				6
	54			46	60
				59	56
					50
		55
				44				21
		64			52		2
C								23				A
				1				25	37
		1						65				26
					36					35		26
					34					66
		1		69				30
						67						24
	1				31		41	40
									27
												38
D									29
					32					28		39
							A
											33
				4	B
		20
E					8
					A
		9			B		3
												7
	10								2
				19	C
F

10		DEH-P3950MP/XU/ES
1	2		3	4

	5	6
(1) EXTERIOR SECTION PARTS LIST
Mark No.	Description	Part No.
1	Screw	BSZ26P060FTC
2	Screw	BSZ26P100FTC
3	Screw	BSZ26P180FTC
4	Cable	CDE8336
5	Cord Assy	CDP1017
6	Case	CNB2793
7	Holder	CND3598
8	Insulator	CNN1385
9	Remote Control Assy	CXC5719
10	Cover	CNS7068
11	Button(DETACH)	CAC4836
12	Spring	CBH2367
13	Spring	CBH2961
14	Spring	CBH2962
15	Cover	CNN1665
16	Panel	CNS8760
17	Arm	CNV9311
18	Arm	CNV9312
19	Chassis Unit	CXC7391
20	CD Mechanism Module(S10.5)	CXK5760
21	Screw	ISS26P055FTC
22	Panel	See Contrast table(2)
23	Tuner Amp Unit	See Contrast table(2)
24	Screw	BPZ26P080FTC
25	Screw	BSZ26P060FTC
26	Screw	BSZ26P160FTC
> 27	Fuse(10 A)	CEK1208
28	Pin Jack(CN351)	CKB1051
29	Plug(CN901)	CKM1376
30	Connector(CN101)	CKS3408
31	Connector(CN651)	CKS3829
32	Connector(CN831)	CKS5664
33	Antenna Jack(CN401)	CKX1056
34	Holder	CND3545
35	Holder	CND3703

		7	8
	Mark No.	Description	Part No.
	36	Holder	CND3706	A
	37	Heat Sink	CNR1668
	38	FM/AM Tuner Unit	CWE2025
	39	Holder	CND3466
	40	Terminal(CN402)	VNF1084
	41	Terminal(CN601)	VNF1084
	42	Detachable Assy	See Contrast table(2)
	43	Screw	BPZ20P100FTC
	44	Button(Detach)	CAC9941
	45	Button(AUDIO/FUNC)	CAC9942
				B
	46	Button(1-6)	See Contrast table(2)
	47	Button(L/R)	See Contrast table(2)
	48	Button(UP)	See Contrast table(2)
	49	Button(DOWN)	See Contrast table(2)
	50	Button(EJECT)	CAC9949
	51	Button(EQ/BAND)	CAC9950
	52	Spring	CBH2210
	53	Cover	CNS8758
	54	Knob Unit(SOURCE, VOLUME) CXC7055
	55	Spring	CBL1761	C
	56	LCD	See Contrast table(2)
	57	Jack(CN1802)	CKN1047
	58	Connector(CN1801)	CKS5663
	59	Holder	CND3646
	60	Connector	CNV9306
	61	Lighting Conductor	CNV9308
	62	Rubber	CNV9310
	63	Cushion	YNM5029	D
	64	Grille Unit	See Contrast table(2)
	65	Transistor(Q991)	2SD2396
	66	IC(IC301)	PAL007C
	67	IC(IC911)	BA4918-V12
	68	IC(IC1802)	GP1UX51RK
	69	Sheet	See Contrast table(2)

(2) CONTRAST TABLE

DEH-P3950MP/XU/ES and DEH-P3950MP/XU/CN5 are constructed the same except for the following:

Mark	No.	Description	DEH-P3950MP/XU/ES	DEH-P3950MP/XU/CN5	E
	22	Panel	YNS5190	CNS8762
	23	Tuner Amp Unit	YWM5131	YWM5159
	42	Detachable Assy	YXA5199	YXA5241
	46	Button(1-6)	CAC9943	CAC9866
	47	Button(L/R)	CAC9946	CAC9867
	48	Button(UP)	CAC9947	CAC9868
	49	Button(DOWN)	CAC9948	CAC9945
	56	LCD	CAW1931	CAW1930
	64	Grille Unit	YXC5042	YXC5043
	69	Sheet	Not used	CNM9404
					F

		DEH-	P3950MP/XU/ES				11
5	6				7	8

1

2

3

4

2.3 CD MECHANISM MODULE

A

B

C

D

E

F

12		DEH-P3950MP/XU/ES
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(S10.5COMP2)	CWX3350		50			Rack		CNV8342
2	Connector(CN101)	CKS4911
3	Connector(CN701)	CKS4808		51			Roller		CNV8343
4	Screw	BMZ20P025FTC		52			Holder		CNV8344
5	Screw	BSZ20P040FTC		53			Arm		CNV8345
				54			Guide		CNV8347
6	Screw(M2 x 3)	CBA1511		55			Arm		CNV8348
7	Screw(M2 x 4)	CBA1835
8	Washer	CBF1038		56			Arm		CNV8349
9	•••••			57			Arm		CNV8350
10	Spring	CBH2609		58			Clamper		CNV8365
				59			Arm		CNV8386
11	Spring	CBH2612		60			Guide		CNV8396
12	Spring	CBH2614
13	Spring	CBH2616		61			Arm		CNV8413
14	Spring	CBH2617		62			Collar		CNV8447
15	Spring	CBH2620		63			Motor Unit(M2)		CXC4026
				64			Arm Unit		CXC4027
16	Spring	CBH2855		65			Chassis Unit		CXC4028
17	Spring	CBH2937
18	Spring	CBH2735		66			Gear Unit		CXC4029
19	Spring	CBH2854		67			Frame Unit		CXC4031
20	Spring	CBH2642		68			Motor Unit(M1)		CXC7134
				69			Screw Unit		CXC6359
21	Spring	CBH2856		70			Screw		JFZ20P020FTC
22	Spring	CBH2857
23	Spring	CBH2860		71			Screw		JGZ17P022FTC
24	Spring	CBH2861		72			Washer		YE20FTC
25	Spring	CBL1686		73			Pickup Unit(P10.5)(Service)		CXX1942
				74			Screw		IMS26P030FTC
26	Arm	CND1909
27	Frame	CND2582
28	Bracket	CND2583
29	Arm	CND2584
30	Lever	CND2585
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	CNV8189
45	Gear	CNV7219
46	Guide	CNV7361
47	Gear	CNV7595
48	Guide	CNV8448
49	Arm	CNV7805
				DEH-	P3950MP/XU/ES					13
	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

ANTENNA CN401

SYS+B

SWVDD3V

1

ANTAM

IN-SL

IFA

IFB

REFA

REFB

LDET

DI

CK

CE1

DO

CE2

SLOUT

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

ANT

RFGND1

RFGND2

RFGND3

RFGND4

VCC

SLIN

IFOUTA

IFOUTB

DGND

REFINA

REFINB

LDET

VDD

DI

CK

CE1

DO

CE2

SLOUT

IC2

SL-IN

EEPROM

IFA

IFB

REFA

REFB

B

LDET

DI

CK

CE1

DO

VCO

LFP

CE2

SLOUT

ATT

ATT

TANK

IC1

MIX / IF / PLL

ATT

RF

LFP

ELECTRO

CF

SOURCE

C

FM/AM TUNER UNIT

TUNL

2

IN2_L

BUSL-

5

IN4−_L

BUSL+

4

IN4+_L IC

CDL

1

PM

IN1_L

	CN101
11	IN1−		VST
7	IN1+	SYSPW
	B14		VDT,
	Q101
8		B.UP	VCK,
BUS	Q102
_		27
IP			ASENBO

	B−	5				1	29	IPTX	SYSTEM M
5				IC 101		2	30
								IPRX	COMPU
	B+	6		HA12241FP
1
						8	28	IPPW	IC 601(2
									PN5011

D

C CD CORE UNIT(S10.5COMP2)

PICKUP UNIT

D

RF-AMP, CD DECODER,

(P10.5)(SERVICE)

MP3/WMA DECODER,

DIGITAL SERVO /

LASER

CN101

VDD

DATA PROCESSOR

CN701

CN651

REGULATOR IC

DIODE

LD- 15

15

141

LD

1

47

Q101

PWROFF

MD

5

5

142

PD

LOUT

55

LOUT

13

3

LOUT

SWVDD3V

6

2

36

/BSENS

VREF

REFO

133

7

IC 911

3

15

8

8

REFOUT

SYS+B

SYSPW

8

10

AC,BD,F,E

VDD3V

BA4918-V12

B.UP

HOLOGRAM

50

5

XTAL

9

UNIT

FOM

3

3

FOM

CD

X201

SW5V

FOP

FOP

/XTAL 52

16.93MHz

Q801

MONITOR

FOCUS ACT.

2

2

DRIVER

SW5V

TRACKING ACT.

TOP

1

1

TOP

DIODE

TOM

TOM

IC301

VDD

4

4

TD,FD

IC201

Q802

1

SWVDD

LD+

14

14

BA5839FP

Q102

12

FOM

PE5547A

VCC

VDD 9

7

VDD3V

E

11

FOP

SD,MD

14

TOP

/PUEN

39

13

TOM

SPINDLE

M

MOTOR

16

16

/RESET

RESET

16

SOP

LOEJ

22

5

LOEJ

/RESET

8

8

CDRST

15

SOM

21

43

LOAD/ CARRIAGE

M

18

LCOP

CLCONT

CLCONT

BRST,BRXEN,BSRQ

BRST,BRXEN,BSRQ,BDATA,BSCK

MOTOR

17

LCOM

CONT

9

41

CONT

BDATA,BSCK

Q991

CD VD

VD

2

VD

VD

14

B.UP

Q992

8

12EJ

1

15

7

8EJ

5

6

DSCSNS

9

126

HOME

VDCONT

S904

S905

S901

12EJ

8EJ

HOME

SWVDD3V

VD

S903

Q601

85

DREG

DSCSNS

11

VDSENS

EEPROM

CS,SK

9

M-REGC

55

F

IC202

DI,DO

PLL_VDD

S-93C56BD0I-J8

57

DVDD3

94

DVDD2

121

DVDD4

14

DEH-P3950MP/XU/ES

1

2

3

4

5

6

7

8

A

SYSTEM MICRO

COMPUTER

IC 601(1/2)

PN5011A

CN351(1/2)

SL-IN

62

SWL

2

SL

IFA

77

IF_INA

Q351

IFB

78

IF_INB

CN351(2/2)

REFA

96

FREFA

FL

REFB

97

FREFB

2

LDET

99

LOCK

B

DI

100

TUNDO

Q352

CK

101

TUNCK

CE1

102

CE

DO

103

TUNDI

CE2

109

CE2

SLOUT

136

SL

CN901

ACC SENSE

B.UP

1

1

Q931

BACK UP

59

L_OUT

35

ASENS

ACC

3

3

/ASENS

ACC

2

2

GND

ELECTRONIC VOLUME/

SOURCE SELECTOR

TUNL

2

6

14

FLIn

FL−

23

FL−

10

10

IN2_L

Front_L

AMP

FL−

C

21

FL+

12

IC 301

FL+

12

12

BUSL-

5

Pre/SW_L

PAL007C

RL−

3

RL−

9

9

FL+

IN4−_L

12

5

RL+

RL−

BUSL+

Rear_L

7

RLIn

RL+

11

11

4 IN4+_L

IC 151

RL+

CDL

1

IN1_L

PML015B

22

MUTE

B.REM

25

BREM

6

6

AUX-L 1

3

AUXL

3

IC 751

B.REM

IN3_L

VCC

6

B.UP

NJM4558MD 2.6

AUXG

4

STBY

VCC

20

SYSPW

VDT, VST

VCK,

MUTE

27

Q201(1/2)

ASENBO

29

IPTX

SYSTEM MICRO

30

IPRX

COMPUTER

MUTE

28

IPPW

IC 601(2/2)

Q201(2/2)

PN5011A

44

MUTE

D

XOUT

82

X601

47

PWROFF

XIN

81

74.1MHz

36

/BSENS

15

SYSPW

B.UP

BU-X1

52

51

X602

B KEYBOARD UNIT

BU-X2

AUX IN

CN831

CN1801

1

2

1

AUXG

AUXL

CN1802

KEY MATRIX

SWVDD

S1801

S1802

S1805

AUXG

6

6

AUXG

S1804

DISP

S1803

SW

S1806

AUXL

AUXL

EJECT

SCRL

CLK

BASS

3

E

7

7

S1810

S1811

S1807

S1808

34

DSENSE

DSENS

S1809

S1814

S1816

16

DSENS

14

14

D1803-D1810

2

1

4

UP

LEFT

CDRST

ILMPW

D1812-D1821

D1823-D1825

S1815

S1817

Q821

S1812

S1813

B.UP

ILM+B

9

9

ILL+B

S1820

S1821

S1818

6

5

DOWN

RIGHT

EQ

Q822

S1819

S1822

S1823

B.UP

2

BAND

ILMPW

AUDIO

FUNC

ESC

SW5V

SW5V

3

3

SWVDD

126

VDCONT

S1827

33

SOURCE

SRC

/SRC

4

4

4

REM.CON.

SWVDD3V

ROT1

111

ROT1

10

10

ROT1

1

SWVDD

3

IC1802

1

ROT0

110

ROT0

11

11

ROT0

2

GP1UX51RK

85

17

DREG

VOLUME

REM

KEY DATA

XO

22

PUSH:SOURCE

X1801

9

M-REGC

23

DPDT

DPDT

18

5MHz

55

DPDT

13

13

DPDT

XI

23

PLL_VDD

LCD DRIVER/

F

24

57

DVDD3

KYDT

KYDT

12

12

KYDT

20

KYDT

KEY CONTROLLER

94

DVDD2

10

VLCD

IC 1801

LCD1801

PD6340A

121

56

DVDD4

VDD

5

6

DEH-P3950MP/XU/ES

7

8

15

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
		Large size
A-a	A-b	SCH diagram	C CN701
A-a	A-b	Guide page
A-a	A-b	Detailed page

B

FM/AM TUNER UNIT

C

SYSTEM CONTROLLER

D

E

B CN1801

F

A

16		DEH-P3950MP/XU/ES
1	2		3	4

C646

C646

5								6

74.100MHz

4.7186MHz

POWER

SUPPLY IC

102/6R3

5

6

7

8

A-b

A TUNER AMP UNIT

>

3A

3300/16

BA4918-V12

A

	SUB WOOFER
	L CH
	SUB WOOFER	B
	R CH
	FRONT
	L CH
	FRONT
	R CH

C

CEK1208	D
10A

>

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.

For resistors and capacitors in the circuit diagrams, their resistance values or

capacitance values are expressed in codes:

Ex. *Resistors

Code

Practical value

123

12k ohms

103

10k ohms

*Capacitors

Code

Practical value

103

0.01uF

101/10

100uF/10V

F

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

A

identical designation.

DEH-

P3950MP/XU/ES

17

7

8

1

A

B UNITAMP

A TUNER

C

a-A b-A

D

E

F

A-b

18

1

2

3

4

SUB WOOFER L CH				SUB WOOFER R CH	FRONT L CH	FRONT R CH

> 3A

1

3300/16

74.100MHz 4.7186MHz

C646

2

DEH-P3950MP/XU/ES

2

3

4

4.7186MHz

POWER

5	SUPPLY IC

3

102/6R3

6

DEH	4
P3950MP/XU/ES-

7

5

8
19	b-A

F

E

D

CEK1208

10A

>

BA4918-V12

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 capacitance values are expressed in codes:

Ex. *Resistors
Code	Practical value
123	12k ohms
103	10k ohms
*Capacitors
Code	Practical value
103	0.01uF
101/10	100uF/10V

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 A-b

C

B

A

5

6

7

8

1	2	3	4

A A-b

	CN701
B	C

C

A-a A-b

D

E

F

1

2

FM/AMTUNERUNIT

SYSTEM CONTROLLER

A-a

20		DEH-P3950MP/XU/ES
1	2		3	4

5

6

7

3

4

5

CONTROLLER
SYSTEM	CN1801	B

DEH-P3950MP/XU/ES

5

6

7

8

A-b A

B

C

A-a A-b

D

E

F

A-a

21

8

1

3.3 KEYBOARD UNIT

A

BUTTON LED

COLOR

RED/BLUE VOL

GREEN

B

C

D

E

(CN5)

(ES)

F

2

D1803-D1809

D1812-D1816 D1817,D1819

D1820,D1821 D1823,D1825

SML-310VT CL-197HB1-D(CDE)

SML-310PT SML-310PT

LCD DRIVER/

KEY CONTROLLER

3

4

D1818		C1804,C1806		R1803,R1804			R1810	R
D1824		C1807,C1809		R1805,R1806		R1808	R1811	R
NM		104YF		561		681	0R0	8
SML-310PT		NM		471		561	NM	4

B

22		DEH-P3950MP/XU/ES
1	2		3	4