Pioneer DEHP-4850-MP, DEHP-4850-MPH Service manual

ORDER NO.

CRT3567

DEH-P4850MP/XU/ES

MULTI-CD CONTROL HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER

DEH-P4850MP/XU/ES

DEH-P4850MP/XU/CN

DEH-P4850MPH/XU/GS

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

Model No.	Order No.					Mech. Module			Remarks
CX-3164	CRT3583					S10.5COMP1			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 2005

K-ZZA. NOV. 2005 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 13cm from the focus lens must be kept. 2. During repair or tests, do not view laser beam for 10 seconds or longer.

C		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.

- CD Section Precaution

D1. 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 the unit.

3.To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder) by referring to "the DISASSEMBLY".

E4. After replacing the pickup unit, be sure to check the grating.

F

2		DEH-P4850MP/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.

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		DEH-	P4850MP/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.....................................................................................................................			14
	3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................			16
	3.1 BLOCK DIAGRAM ...................................................................................................................................			16
	3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)..............................................................................			18
	3.3 KEYBOARD UNIT....................................................................................................................................			24
	3.4 CD MECHANISM MODULE(GUIDE PAGE) ............................................................................................			26
	4. PCB CONNECTION DIAGRAM .....................................................................................................................			36
	4.1 TUNER AMP UNIT...................................................................................................................................			36
	4.2 KEYBOARD UNIT....................................................................................................................................			40
B	4.3 PANEL UNIT ............................................................................................................................................			41
	4.4 CD CORE UNIT(S10.5COMP1)...............................................................................................................			42
	5. ELECTRICAL PARTS LIST ............................................................................................................................			44
	6. ADJUSTMENT ...............................................................................................................................................			49
	6.1 CD ADJUSTMENT...................................................................................................................................			49
	6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT ....................................................			51
	6.3 ERROR MODE ........................................................................................................................................			53
	6.4 SYSTEM MICROCOMPUTER TEST PROGRAM ...................................................................................			54
	7. GENERAL INFORMATION.............................................................................................................................			55
	7.1 DIAGNOSIS .............................................................................................................................................			55
	7.1.1 DISASSEMBLY .....................................................................................................................................			55
C	7.1.2 CONNECTOR FUNCTION DESCRIPTION..........................................................................................			58
	7.2 PARTS......................................................................................................................................................			59
	7.2.1 IC ..........................................................................................................................................................			59
	7.2.2 DISPLAY ...............................................................................................................................................			69
	7.3 OPERATIONAL FLOW CHART ...............................................................................................................			71
	8. OPERATIONS ................................................................................................................................................			72

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F

4		DEH-P4850MP/XU/ES
1	2		3	4

5

6

7

8

1. SPECIFICATIONS

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C

D

E

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		DEH-	P4850MP/XU/ES				5
5	6				7	8

1

2

3

4

A

B

C

D

E

F

6		DEH-P4850MP/XU/ES
1	2		3	4

5

6

7

8

A

B

C

D

E

F

		DEH-	P4850MP/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

B

4

C

D

(1) PACKING SECTION PARTS LIST

Mark No.		Description	Part No.	Mark No.		Description	Part No.
	1	Polyethylene Bag	CEG-162		15	Bush	CNV3930
	2	Cord Assy	XDE7008
E	3	Accessory Assy	CEA4850		16	Remote Control Assy	CXC5719
	4	Case Assy	CXB3520	*	17	Battery	CEX1065
	5	Screw Assy	CEA3849		18	Carton	See Contrast table(2)
					19	Contain Box	See Contrast table(2)
	6	•••••			20	Protector	YHP5008
	7	Screw	CBA1650
*	8	Polyethylene Bag	CEG-127		21	Protector	YHP5009
	9	Screw	CRZ50P090FTC		22-1	Owner's Manual	See Contrast table(2)
	10	Screw	TRZ50P080FTC		22-2	Owner's Manual	See Contrast table(2)
					22-3	Installation Manual	See Contrast table(2)
*	11	Polyethylene Bag	CEG-158		22-4	Caution Card	CRP1310
F	12	Handle	CNC5395
	13	•••••		*	22-5	Warranty Card	See Contrast table(2)
	14	•••••

8		DEH-P4850MP/XU/ES
1	2		3	4

5

6

7

8

(2) CONTRAST TABLE

DEH-P4850MP/XU/ES , DEH-P4850MP/XU/CN and DEH-P4850MPH/XU/GS are constructed the same except for the following:

Mark		No.		Description	DEH-P4850MP/XU/ES	DEH-P4850MP/XU/CN	DEH-P4850MPH/XU/GS
		18	Carton		YHG5079	YHG5082	YHG5080
		19	Contain Box		YHL5056	YHL5059	YHL5057
		22-1	Owner's Manual		YRD5039	YRB5018	YRD5041
		22-2	Owner's Manual		YRD5040	Not used	Not used
		22-3	Installation Manual		YRD5044	YRB5020	YRD5045
*		22-5	Warranty Card		Not used	ARY7046	Not used
Owner's	Manual,Installation Manual
Part No.					Language
YRD5039				English, Spanish, Portuguese(B)
YRD5040				Traditional Chinese, Arabic
YRD5044				English, Spanish, Portuguese(B),Traditional Chinese, Arabic
YRB5018,YRB5020				Traditional Chinese
YRD5041,YRD5045				English,Traditional Chinese, Arabic

A

B

C

D

E

F

		DEH-	P4850MP/XU/ES				9
5	6				7	8

	1	2		3		4
	2.2 EXTERIOR
			59	56	70	64
				72	A
A	13		66		73	76

		58	75	D	74
	65
17		63	55
	57			61	6260
				69
35	57		68		67
45
35
B	35	57	77	71
34

B

42 43

35	16
46

39

	53		51
54		40		50
			59
				79
			52

84

48 47

			44	41	36
				38
C			37
			3		4	19
					81
					19
			3		81
					26
	3	3	83
D
					15
			12
	8				14
E						C
				B

2

10

A

78 F 11

	18	C	9
		33	21	7
				21
82 29
	32
		80
	27
B	2422		20
		23	30
25
				31

28

A

1

5 5

6

5

2

10		DEH-P4850MP/XU/ES
1	2		3	4

	5	6
(1) EXTERIOR SECTION PARTS LIST
Mark No.	Description	Part No.
1	Screw	ASZ26P050FTC
2	Screw	BMZ30P040FTB
3	Screw	BSZ26P060FTC
4	Screw	BSZ30P060FTC
5	Screw	BSZ30P200FTC
6	Holder	CNC8659
7	Earth Plate	CNC8915
8	Insulator	CNM7682
9	Cushion	CNM8890
10	Remote Control Assy	CXC5719
11	Cover	CNS7068
12	CD Mechanism Module(S10.5)	CXK5750
13	Cord Assy	XDE7008
14	Insulator	XNM7100
15	Cable	YDE5013
16	Case	YNB5008
17	Panel	See Contrast table(2)
18	Tuner Amp Unit	Contrast table(2)
19	Screw	ASZ26P060FTC
20	Screw	BPZ26P080FTC
21	Screw	BSZ26P160FTC
> 22	Fuse(10 A)	CEK1208
23	Pin Jack(CN353)	Contrast table(2)
24	Plug(CN901)	CKM1376
25	Plug(CN801)	CKS3537
26	Connector(CN701)	CKS3834
27	Connector(CN101)	CKS5271
28	Antenna Jack(CN401)	CKX1056
29	Holder	CND1352
30	FM/AM Tuner Unit	CWE1952
31	Holder	CND1054
32	Holder	Contrast table(2)
33	Heat Sink	YNR5004
34	Detachable Assy	Contrast table(2)
35	Screw	BPZ20P100FTB
36	Spring	CBH2210
37	Knob(SOURCE,VOLUME)	YAA5006
38	Button(OPEN)	Contrast table(2)
39	Button(EQ)	YAC5068
40	Button(BAND)	YAC5069
41	Button(1-6)	Contrast table(2)
42	Button(AUDIO,FUNCTION,SW) Contrast table(2)
43	Button(CLOCK,DISPLAY)	Contrast table(2)
44	Spring	YBH5003
45	Cover	YNS5113

	7	8
Mark No.	Description	Part No.
50	Spacer	YNM5016
51	Connector	YNV5030
52	Lighting Conductor	YNV5032
53	Grille Unit	Contrast table(2)
54	Button Unit(UP,DOWN,LEFT,RIGHT)	Contrast table(2)
55	Button(EJECT)	CAC7752
56	Screw(M2 x 4)	CBA1649
57	Screw(M2 x 4.5)	CBA1925
58	Washer	CBF1038
59	Spring	CBH2650
60	Spring	CBH2651
61	Spring	CBH2652
62	Spring	CBH2653
63	Spring	CBL1512
64	Holder	CND1254
65	Pin	CNV6486
66	Arm	CNV7400
67	Arm	CNV7401
68	Arm	CNV7402
69	Arm	CNV7403
70	Holder Unit	CXB9501
71	Holder Unit	CXB9502
72	Damper Unit	CXB9503
73	Gear	YNV5053
74	Panel Unit	YWM5099
75	Connector(CN1901)	CKS4806
76	Connector(CN1902)	CKS5192
77	Sub Panel Unit	YXA5160
78	Chassis Unit	YXA5131
79	IC(IC1801)	TSOP4840SB1
80	IC(IC301)	PAL007B
81	Transistor(Q702,Q911)	2SD2396
82	IC(IC921)	NJM2388F84
83	Sheet	Contrast table(2)
84	Sheet	Contrast table(2)

A

B

C

D

E

46	Connector(CN1801)	CKS5207
47	LCD(LCD1801)	Contrast table(2)	F
48	Holder	YNC5013
49	Sheet	YNM5015

		DEH-	P4850MP/XU/ES				11
5	6				7	8

1

2

3

4

(2) CONTRAST TABLE

DEH-P4850MP/XU/ES , DEH-P4850MP/XU/CN and DEH-P4850MPH/XU/GS are constructed the same except for the following:

A	Mark	No.	Description	DEH-P4850MP/XU/ES	DEH-P4850MP/XU/CN	DEH-P4850MPH/XU/GS
		17	Panel	YNS5114	YNS5157	YNS5156
		18	Tuner Amp Unit	YWM5097	YWM5093	YWM5089
		23	Pin Jack(CN353)	CKB1051	CKB1057	CKB1057
		32	Holder	YNC5014	YNC5019	YNC5019
		34	Detachable Assy	YXA5110	YXA5108	YXA5106
		38	Button(OPEN)	YAC5067	YAC5067	YAC5099
		41	Button(1-6)	YAC5070	YAC5070	YAC5100
		42	Button	YAC5072	YAC5096	YAC5095
			(AUDIO,FUNCTION,SW)
B		43	Button	YAC5073	YAC5098	YAC5097
			(CLOCK,DISPLAY)
		47	LCD(LCD1801)	YAW5051	YAW5051	YAW5060
		53	Grille Unit	YXA5157	YXA5156	YXA5158
		54	Button Unit	YXC5022	YXC5025	YXC5024
			(UP,DOWN,LEFT,RIGHT)
		83	Sheet	Not used	CNM9404	Not used
		84	Sheet	Not used	Not used	YNM5017

C

D

E

F

12		DEH-P4850MP/XU/ES
1	2		3	4

5

6

7

8

A

B

C

D

E

F

		DEH-	P4850MP/XU/ES				13
5	6				7	8

1

2

3

4

2.3 CD MECHANISM MODULE

A

B

C

D

E

F

14		DEH-P4850MP/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(S10.5COMP1)	CWX3176		50			Rack		CNV8342
2	Connector(CN101)	CKS4808
3	Connector(CN901)	CKS5284		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)		CXC6742
				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-	P4850MP/XU/ES					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

VDD5

TUNPDI TUNPCK

TUNPDO

FM/AM TUNER UNIT

7

6

13

5

10

9

8

11

14

18

19

20

21

NC

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

RFGND

OSCGND

AUDIOGND

VDD 3.3

IC 4

DGND

VCC

3.3V

3.3V← 2.5V

2.5V

TUNL

2

C

NC

2

12

15

22

16

4

17

5

VDD_3.3V

4

VCC8

1

CN101

11

BUSL−

7

BUSL+

B14

Q101

8

B.UP

BUS

Q102

_

ASENBO

40

IP

ASENBO

1

30

TX

29

D

5

B−

5

IC 101

2

RX

1

B+

6

HA12241FP

27

RX2

8

52

IPPW

PICKUP UNIT

CD CD CORE UNIT(S10.5COMP1)

SYSTEM CONT

(P10.5)(SERVICE)

IC 601(2/

PEG155

LASER

CN101

V3R3D

CN901

CN701

DIODE

LD- 15

15

142

LD

31

LOUT

LOUT

Q101

IC201

LOUT

16

16

MD

5

5

143

PD

UPD63763CGJ

REFO

VREF

8

8

133

REFOUT

RF-AMP,CD DECODER,

AC,BD

34

HOLOGRAM

MP3 , WMA, DECODER,

XTAL

UNIT

F,E

DIGITAL SERVO / DATA PROCESSOR

X201

FOM

FOM

/XTAL 35

16.93MHz

3

3

FOCUS ACT.

FOP

2

2

FOP

LOCK/RFOK

MONITOR TRACKING ACT.

TOP

1

1

TOP

56

DIODE

TOM

TOM

TD,FD

SD,MD

XRST,XASTB,ADO,XCK,

4

4

LD+

14

14

CD

XSO,XSI,WAIT,XINT

12

VDD

E

11

FOPFOM DRIVER

Q701

14

TOP

SWVDD

VDD 11

11

VDD5

13

TOM

63

SPINDLE

M

IC301

LOCK

/CD3VON

43

MOTOR

16

BA5835FP

21

14

/RESET 10

10 /RESET

21

SOP CLCONT

41

CLCONT

RESET

CDRST

15

SOM

22

40

CDMUTE 39

CDMUTE 8

8

LOAD/ CARRIAGE

M

18

LCOP

LOEJ

LOEJ

IC701

BRST,BRXEN,BSRQ

BRST,BRXEN,BSRQ,BDATA,BSCK

MOTOR

17

LCOM

CONT

9

47

CONT

PE5505A

BDATA,BSCK

CD CONTROLLER

VD

VD

Q702

12

VD

1

1

B.UP

32

X1

Q701

12EJ

2

2

31

X701

3

4

8EJ

13

4.00MHz

5

30

X2

DSCSNS

2

42

HOME

S904

S905

S901

VDCONT

49

VDCONT

9

9

VDCONT

12EJ

8EJ

HOME

CD3VON

S903

46

DSCSNS

F

4

IC203

1

V3R3D

NJM2886DL3-33 3

VD

+3.3V REGULATOR

16

DEH-P4850MP/XU/ES

1

2

3

4

5

6

7

8

CN351

SWL

2

RESET

Q351

1

IC 961

2

VDD5

BD4843G

12

RESET

CN353

TUNPDO

68

RCFL

2

TPDI

Q353

TUNPDI

86

TPDO

TUNPCK

67

TPCK

VDD5V REG.

DEH-P4850MP/ES only

CE1

66

TUNPCE1

Q911

CE2

65

TUNPCE2

VDD5

SYSTEM CONTROLLER

Q912

IC 601(1/2)

47

PEG155B

DALMON

CN901

BACKUP SENSE

B.UP

19

FUSE

BSENS

BSENS

1

1

BACK UP

Q931

10A

20

ACC

ASENS

ASENS

3

3

ACC

ACC

SENSE

AMP

B.UP

2

2

GND

20

6

ELECTRONIC VOLUME/

VCC

VCC

TUNL

SOURCE SELECTOR

14

2

IN2−_L

FRONT_L

6

FLIN

IC 301

FL−

23

FL−

10

10

FL-

PRE/SW_L

12

PAL007B

FL+

21

FL+

12

12

FL+

3

RL−

7

12

RL−

9

9

RL-

5

IN4−_L

REAR_L

RLIN

5

RL+

RL+

11

11

RL+

4

IC 151

IN4+_L PML015A

22

25

BREM

MUTE

STBY

B.REM

6

6

B. REM

4

1

IN1_L

MUTE

VCC8

VST

B.UP

Q453

TUN3V REG.

SYS 8V REG.

VDT,

3

IC 401

1

2

IC 921

1

VCK,

VDD_3.3V

B.UP

NJM2885DL1-33

NJM2388F84

53

Q451

4

MUTE

40

ASENBO

SYSPW

30

TX

48

SYSPW

29

SYSPW

RX

27

BUZZ

RX2

52

BZ601

IPPW

PEE

26

SYSTEM CONTROLLER

IC 601(2/2)

PEG155B

XOUT

13

XIN

15

X601

D

PANEL UNIT

B

KEYBOARD UNIT

CN801

CN1902

CN1901

CN1801

D1804-D1826

KEY MATRIX

Q841

ILMB+

ILMB+

ILM

10

10

B.UP

8

8

S1801

S1803

S1804

S1805

S1806

Q842

1

DOWN

2

BAND

ILMPW

1

S1901

DISP

S1807

S1808

S1809

S1810

2

EJECT

DGND

DGND

LEFT

3

AUDIO

EJTIN

14

14

1

1

UP

21

CDRST

B.UP

Q802

FLPILM

12

S1811

S1812

S1813

S1814

12

Q801

EJECT

FLPILM

6

4

SW/BB

RIGTH

FUNC

Q851

SWVDD

S1815

S1816

S1817

S1818

10 SWVDD 10

5

5

SWVDD

6

P

VDD5

5

EQ

CLOCK

7

Q852

S1827

SWVDD

VOLUME

SWVDD

PUSH:SOUCE

REM.CON.

SSENS

92

9

SSENS

9

SSENS

3

3

SSENS 4

3

ROT1

ROT1

6

6

ROT1

1

3

IC1802

1

ROT1

4

6

ROT0

6

ROT0

ROT0

2

TSOP4840SB1

ROT0

5

5

8

8

57

CSENS

93

13

CSENS

13

CSENS

12

12

CSENS

REM

KEY DATA

X0

54

X1801

DPDT

35

4

DPDT

4

DPDT

9

9

DPDT

50

SI

LCD DRIVER/

X1

55

5MHz

KYDT

36

S801

3

KYDT

3

KYDT

11

11

KYDT

49

SO

KEY CONTROLLER

46

V3

IC 1801

LCD1801

18

PD6538A

47

DSENS

VDD

A

B

C

D

E

F

		DEH-	P4850MP/XU/ES				17
5	6				7	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
							Large size
							SCH diagram
		A-a			A-b

C CN901

FM:-24dBs

B

AM:-24dBs

1

A-a	A-b	Guide page
A-a	A-b	Detailed page

UNIT	471/16
FM/AM TUNER

CD:0.35dBs

2

C

D

IP-Bus:2.21dBs

E

			15.000MHz
RESET	VCC	XIN	VSS	XOUT
CD-

NC

NC

VCC

VSS

CE2

CE1

TUNPCK

TUNPDI

3

B

CN1801

EJECT

F

D PANEL UNIT

4

DSEN

A D

18		DEH-P4850MP/XU/ES
1	2		3	4

1

2

15.000MHz
VSS	XOUT

AVCC

VREF

AVSS

TUNPDO

TUNPCK

TUNPDI

3

4

DSENS

5

6

7

8

			A-b	A
			A TUNER AMP UNIT
				B
			ES
			>
471	471	471	471
FM,AM:-2.9dBs
CD:10.45dBs			3A
IP-Bus:10.31dBs

C

332/16

	CEK1208	10A
600 H	>
471/16		D
FM,AM:23.1dBs
CD:36.45dBs
IP-Bus:36.31dBs

E

NOTE :
			Symbol indicates a resistor.	For resistors and capacitors in the circuit diagrams, their resistance
			No differentiation is made between chip resistors and	values or capacitance values are expressed in codes:
			discrete resistors.
			Symbol indicates a capacitor.	Ex. *Resistors
			No differentiation is made between chip capacitors and	Code	Practical value
			discrete capacitors.	123	12k ohms
				103	10k ohms
			The > mark found on some component parts indicates
			the importance of the safety factor of the part.	*Capacitors
			Therefore, when replacing, be sure to use parts of	Code	Practical value
			identical designation.	103	0.01uF

101/10 100uF/10V F

A

		DEH-	P4850MP/XU/ES				19
5	6				7	8

1

A

A-b 1

B	CN901
	C

C

A-a A-b

D

-FM:24dBs	-AM:24dBs
E

F

A-a

20

1

2		3	4

AVCC VREF

AVSS

TUNPDO

2

	XOUT
000MHz.15	VSS
CD:0.35dBs	XIN
	VCC
	CD-RESET

NC

NC

471/16

FM/AMTUNERUNIT

DEH-P4850MP/XU/ES

2

3

4

5

6

7

TUNPDO

3

4

TUNPDI

TUNPCK

CE1

CE2

VSS

VCC

NC

IP-Bus:2.21dBs

B

CN1801

DEH-P4850MP/XU/ES

5

6

7

8

DSENS		A
	A-b

B

C

	A-b
	A-a
EJECT	D
	UNIT
	PANEL
	D
	E

F

A-a D

21

8

1	2		3	4
				10A	>
A				CEK1208
UNIT	ES	>	3A	332/16	600 H
AMPTUNER
B
A
C
			471
A-b			471
A-a
			471
D			471

E

IP-Bus:10.31dBs

CD:10.45dBs

FM,AM:-2.9dBs

F

AVCC VREF

AVSS

TUNPDO

	A-b	1		2
	22			DEH-P4850MP/XU/ES
		1	2	3	4

TUNPDO

5

3

6

	P4850MP/XU/ES-DEH
7
	4
8	DSENS

471/16

FM,AM:23.1dBs

CD:36.45dBs

IP-Bus:36.31dBs

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.

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

23	-A
	b				A-a	A-b
		F	E	D			C	B	A

5

6

7

8