Pioneer DEH-3850-MP Service manual

ORDER NO.

CRT3556

DEH-3850MP/XU/ES

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

DEH-3850MP/XU/ES

DEH-3850MP/XU/CN

DEH-3850MPH/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 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 2005

K-ZZA. DEC 2005 Printed in Japan

1

2

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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.

		CAUTION
		Danger of explosion if battery is incorrectly replaced.
		Replaced only with the same or equivalent type recommended by the manufacture.
C		Discord used batteries according to the manufacture's instructions.

- CD Section 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.

D2. 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.

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F

2		DEH-3850MP/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-	3850MP/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 .....................................................................................................................			34
	4.1 TUNER AMP UNIT...................................................................................................................................			34
	4.2 KEYBOARD UNIT....................................................................................................................................			38
B	4.3 CD CORE UNIT(S10.5COMP1)...............................................................................................................			40
	5. ELECTRICAL PARTS LIST ............................................................................................................................			42
	6. ADJUSTMENT ...............................................................................................................................................			46
	6.1 CD ADJUSTMENT...................................................................................................................................			46
	6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT ....................................................			48
	6.3 ERROR MODE ........................................................................................................................................			50
	6.4 SYSTEM MICROCOMPUTER TEST PROGRAM ...................................................................................			51
	7. GENERAL INFORMATION.............................................................................................................................			52
	7.1 DIAGNOSIS .............................................................................................................................................			52
	7.1.1 DISASSEMBLY .....................................................................................................................................			52
	7.1.2 CONNECTOR FUNCTION DESCRIPTION..........................................................................................			55
C	7.2 PARTS......................................................................................................................................................			56
	7.2.1 IC ..........................................................................................................................................................			56
	7.2.2 DISPLAY ...............................................................................................................................................			66
	7.3 OPERATIONAL FLOW CHART ...............................................................................................................			68
	8. OPERATIONS ................................................................................................................................................			69

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4		DEH-3850MP/XU/ES
1	2		3	4

5

6

7

8

1. SPECIFICATIONS

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		DEH-	3850MP/XU/ES				5
5	6				7	8

1

2

3

4

A

B

C

D

E

F

6		DEH-3850MP/XU/ES
1	2		3	4

5

6

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8

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B

C

D

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		DEH-	3850MP/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

E

F

8		DEH-3850MP/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	Polyethylene Bag	CEG-162		15	Bush	CNV3930
	2	Cord Assy	XDE7008
	3	Accessory Assy	CEA4850		16	Remote Control Assy	CXC5719
	4	Case Assy	CXB3520	*	17	Battery	CEX1065
	5	Screw Assy	CEA3849		18	Carton	Contrast table(2)
					19	Contain Box	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	Contrast table(2)
	10	Screw	TRZ50P080FTC		22-2	Owner's Manual	Contrast table(2)
					22-3	Installation Manual	Contrast table(2)
*	11	Polyethylene Bag	CEG-158		22-4	Caution Card	CRP1310
	12	Handle	CNC5395
	13	•••••		*	22-5	Warranty Card	Contrast table(2)

14•••••

(2)CONTRAST TABLE

DEH-3850MP/XU/ES , DEH-3850MP/XU/CN and DEH-3850MPH/XU/GS are constructed the same except for the following:

Mark	No.	Description	DEH-3850MP/XU/ES	DEH-3850MP/XU/CN	DEH-3850MPH/XU/GS
	18	Carton	YHG5053	YHG5052	YHG5051
	19	Contain Box	YHL5053	YHL5052	YHL5051
	22-1	Owner's Manual	YRD5052	YRB5021	YRD5055
	22-2	Owner's Manual	YRD5053	Not used	Not used
	22-3	Installation Manual	YRD5054	YRB5022	YRD5056
*	22-5	Warranty Card	Not used	ARY7046	Not used

Owner's Manual,Installation Manual

Part No.	Language
YRD5052	English, Spanish, Portuguese(B)
YRD5053	Traditional Chinese, Arabic
YRD5054	English, Spanish, Portuguese(B),Traditional Chinese, Arabic
YRB5021,YRB5022	Traditional Chinese
YRD5055,YRD5056	English,Traditional Chinese, Arabic

A

B

C

D

E

F

		DEH-	3850MP/XU/ES				9
5	6				7	8

	1		2				3
	2.2 EXTERIOR
						53	59
A							60
						65
	11
					15
						64
			30
				31			64
			B	42	31		54
		49				31
				43
B	37						31
	36
		50
		39				46
	51			47	67
	34			48
		38	44	72
	41		35 45			16
		32
		40
C	71	2	3	17
					69
						28
				70
	2		17			26
							68
			70
					B
			23		24	22
	2						20
	2						21
D						A	25
	10	12

		8
E	9		14
			A
			4
			B
			4
		52	4

C

F

4

61

56

63

62

55

58

C

57 64

13

A 7

6

29

19

19

18 66

27

1

5

10		DEH-3850MP/XU/ES
1	2		3	4

	5	6
(1) EXTERIOR SECTION PARTS LIST
Mark No.	Description	Part No.
1	Screw	ASZ26P050FTC
2	Screw	BSZ26P060FTC
3	Screw	BSZ30P060FTC
4	Screw	BSZ30P200FTC
5	Holder	CNC8659
6	Earth Plate	CNC8915
7	Cushion	CNM8890
8	Remote Control Assy	CXC5719
9	Cover	CNS7068
10	CD Mechanism Module(S10.5)	CXK5750
11	Cord Assy	XDE7008
12	Cable	YDE5013
13	Case	YNB5008
14	Insulator	YNM5012
15	Panel	Contrast table(2)
16	Tuner Amp Unit	Contrast table(2)
17	Screw	ASZ26P060FTC
18	Screw	BPZ26P080FTC
19	Screw	BSZ26P160FTC
> 20	Fuse(10 A)	CEK1208
21	Pin Jack(CN351)	CKB1057
22	Plug(CN901)	CKM1376
23	Connector(CN701)	CKS3834
24	Connector(CN803)	CKS4944
25	Antenna Jack(CN401)	CKX1056
26	Holder	CND1328
27	Holder	CND1054
28	Holder	YNC5020
29	Heat Sink	YNR5004
30	Detachable Assy	Contrast table(2)
31	Screw	BPZ20P100FTB
32	Spring	CBH2210
33	•••••
34	Knob(SOURCE,VOLUME)	YAA5005
35	Button(1-6,SW)	YAC5059
36	Button(UP,DOWN,LEFT,RIGHT)	Contrast table(2)

		7	8
Mark No.		Description	Part No.
	37	Button(CLOCK,AUDIO,FUNCTION)	YAC5061
	38	Button(EJECT,DISPLAY)	YAC5062
	39	Button(EQ,BAND)	YAC5063
	40	Button(DETACH)	YAC5071
	41	Spring	YBH5003
	42	Cover	YNS5103
	43	Connector(CN1801)	CKS4943
	44	LCD(LCD1801)	Contrast table(2)
	45	Holder	YNC5012
	46	Cushion	YNM5029
	47	Lighting Conductor	YNV5024
	48	Lighting Conductor	YNV5025
	49	Rubber	YNV5026
	50	Connector	YNV5033
	51	Grille Unit	Contrast table(2)
	52	Chassis Unit	YXA5128
	53	Panel Unit	YXA5154
	54	Button(DETACH)	CAC4836
	55	Spring	CBH1835
	56	Spring	CBH2208
	57	Spring	CBH2367
	58	Bracket	CNC6791
*	59	Holder	CNC8042
	60	Cover	CNM6276
	61	Arm	CNV4692
	62	Arm	CNV4728
*	63	Arm	CNV5576
	64	Screw	IMS20P030FTB
*	65	Panel	YNS5046
	66	FM/AM Tuner Unit	CWE1952
	67	IC(IC1802)	TSOP4840SB1
	68	IC(IC301)	PAL007B
	69	IC(IC921)	NJM2388F84
	70	Transistor(Q911, 702)	2SD2396
	71	Sheet	CNM9404
	72	Sheet	Contrast table(2)

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B

C

D

(2) CONTRAST TABLE

DEH-3850MP/XU/ES , DEH-3850MP/XU/CN and DEH-3850MPH/XU/GS are constructed the same except for the following:

Mark	No.	Description	DEH-3850MP/XU/ES	DEH-3850MP/XU/CN	DEH-3850MPH/XU/GS
	15	Panel	YNS5104	YNS5132	YNS5133
	16	Tuner Amp Unit	YWM5111	YWM5109	YWM5107
	30	Detachable Assy	YXA5116	YXA5115	YXA5114
	36	Button	YAC5060	YAC5089	YAC5101
		(UP,DOWN,LEFT,RIGHT)
	44	LCD(LCD1801)	YAW5055	YAW5055	YAW5067
	51	Grille Unit	YXA5149	YXA5148	YXA5147
	72	Sheet	Not used	Not used	YNM5020

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		DEH-	3850MP/XU/ES				11
5	6				7	8

1

2

3

4

2.3 CD MECHANISM MODULE

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D

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12		DEH-3850MP/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-	3850MP/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

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

1

2

12

15

22

16

4

17

VDD_3.3V

VCC8

D

PICKUP UNIT

CD CD CORE UNIT(S10.5COMP1)

SYSTEM

(P10.5)(SERVICE)

IC

P

LASER

CN101

V3R3D

CN901

CN701

DIODE

LD- 15

15

142

LD

31

LOUT

LOUT

IC201

LOUT

16

16

Q101

MD

5

5

143

PD

UPD63763CGJ

REFO

VREF

8

8

133

REFOUT

RF-AMP,CD DECODER,

AC,BD

34

HOLOGRAM

MP3 , WMA, DECODER,

XTAL

DIGITAL SERVO / DATA PROCESSOR

UNIT

F,E

X201

FOM

FOM

/XTAL 35

16.93MHz

3

3

MONITOR

FOCUS ACT.

FOP

2

2

FOP

LOCK/RFOK

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

Q702

VD

VD

12

VD

1

1

B.UP

32

X1

12EJ

2

2

3

Q701

31

X701

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

14

DEH-3850MP/XU/ES

1

2

3

4

5

6

7

8

A

CN351

RESET

SWL

2

IC 961

1

2

VDD5

Q351

BD4843G

12

RESET

TUNPDO

68

TPDI

TUNPDI

86

TPDO

TUNPCK

67 TPCK

VDD5V REG.

CE1

66

TUNPCE1

Q911

CE2

65

TUNPCE2

VDD5

B

Q912

SYSTEM CONTROLLER

IC 601(1/2)

47

PEG158B

DALMON

BACKUP SENSE

B.UP

CN901

BSENS

19

BSENS

FUSE

1

BACK UP

1

Q931

10A

20

ASENS

ACC

ASENS

3

3

ACC

ACC SENSE

2

2

GND

B.UP

AMP

20

6

ELECTRONIC VOLUME/

VCC

VCC

TUNL

SOURCE SELECTOR

6

14

2

IN2−_L

FRONT_L

FLIN

IC 301

FL−

23

FL−

10

10

FL-

1

PRE/SW_L

12

PAL007B

FL+

21

FL+

12

12

FL+

C

IN1_L

3

RL−

REAR_L

7

12

RLIN

RL−

9

9

RL-

IC 151

RL+

5

RL+

11

11

RL+

PML015A

22

MUTE

STBY

B.REM

25

BREM

6

6

B. REM

4

MUTE

VCC8

VST

Q453

B.UP

TUN 3V REG.

SYS 8V REG.

VDT,

3

IC 401

1

2

IC 921

1

VCK,

VDD_3.3V

NJM2885DL1-33

NJM2388F84

B.UP

Q451

4

MUTE

53

48

SYSPW

SYSPW

SYSPW

D

SYSTEM CONTROLLER

IC 601(2/2)

PEG158B

XOUT

13

X601

XIN

15

B KEYBOARD UNIT

CN803

CN1801

KEY MATRIX

Q851

VDD5

SWVDD

3

3

SWVDD

S1801

S1802

S1804

S1805

Q852

S1803

S1806

7

FUNC

BAND

1

4

2

E

SWVDD

S1811

S1813

18

DSENS 10

DSENS

D1803,

S1807

S1809

S1810

S1812

S1814

DSENS

10

D1805-D1810,

AUDIO

6

5

DOWN

UP

D1812,D1813

21

D1815-D1818

S1815

CDRST

Q841

S1817

S1819

B.UP

ILMB+

5

5

ILM

S1816

S1818

S1820

S1821

EQ

RIGHT

LEFT

DISP

Q842

IL1801

S1822

S1825

S1828

S1829

ILMPW

1

LAMP

S1824

EJECT

SW/BB

CLOCK

3

B.UP

92

S1827

SWVDD

SSENS

SSENS

4

4

SRC

4

REM.CON.

ROT1

3

ROT1

6

6

ROT1

1

3

IC1802

1

ROT0

4

ROT0

7

7

ROT0

2

TSOP4840SB1

17

SOURCE

REM

KEY DATA

22

VOLUME

XO

X1801

DPDT

35

DPDT

8

8

DPDT

18

DPDT

XI 23

5MHz

LCD DRIVER/

F

KYDT

36

KYDT

9

9

KYDT

20

KYDT

KEY CONTROLLER

10

VLCD

IC 1801

LCD1801

PD6340A

56

VDD

5

6

DEH-3850MP/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

						Large size
						SCH diagram
	A-a			A-b

A-a

B

C

D

E

	A-a	A-b	Guide page	FM:-24dBs
				AM:-24dBs
	A-a	A-b	Detailed page

FM/AM TUNER UNIT

C CN901

471/16

CD:0.35dBs

			15.000MHz
RESET	VCC	XIN	VSS	XOUT
CD-

NC

NC

SYSTEM CONTROLLER

TU

VCC

VSS

CE2

CE1

TUNPCK

TUNPDI

B

CN1801

F

A

16		DEH-3850MP/XU/ES
1	2		3	4

5

6

7

8

A-b

A

A TUNER AMP UNIT

B

>

3A

FM,AM:-2.9dBs

CD:10.45dBs

C

15.000MHz		332/16
VSS	XOUT
	AVCC
	VREF
	AVSS		CEK1208 10A
		600µH	>
NTROLLER
	TUNPDO

TUNPDI

471/16

FM,AM:23.1dBs

CD:36.45dBs

D

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.

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

A

		DEH-	3850MP/XU/ES				17
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

18

1

2		3	4

	AVCC VREF	AVSS	TUNPDO
2			CONTROLLERSYSTEM
CD:0.35dBs	XOUT
000MHz.15	VSS
	XIN
	VCC
	CD-RESET

NC

NC

471/16

FM/AMTUNERUNIT

DEH-3850MP/XU/ES

2

3

4

5

6

7

	TUNPDO
	3	4
CONTROLLER	CE2
	TUNPDI
	TUNPCK
SYSTEM	CE1
	VSS
	VCC

NC

CN1801

B

DEH-3850MP/XU/ES

5

6

7

8

A

A-b

B

C

A-a A-b

D

E

F

A-a

19

8

1

A

B UNITAMP TUNER

A

C

A-a A-b

D

E

F

A-b 1

20

1

2

3

4

10A
CEK1208	>

>	3A	600µH
		332/16

FM,AM:-2.9dBs

CD:10.45dBs

AVCC VREF

AVSS

TUNPDO

2

DEH-3850MP/XU/ES

2

3

4

TUNPDO

5

3

6

7

4 3850MP/XU/ES-DEH

8

471/16

FM,AM:23.1dBs

CD:36.45dBs

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

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

5

6

7

8

1

3.3 KEYBOARD UNIT

A

B

C

D

E

F

B

22

1

2

3

4

FU

5.00MHz

LCD DRIVER/

KEY CONTROLLER

YAW5055(ES,CN) YAW5067(GS)

DEH-3850MP/XU/ES

2

3

4

5

6

7

8

A

B KEYBOARD UNIT

FUNCTION	B

A

CN803

CEL1651

CLOCK 40mA,14V

DISPLAY

C

D

SML-310PT

E

F

B

		DEH-	3850MP/XU/ES				23
5	6				7	8