Pioneer DEHP-840-MP, DEHP-8450-MP, DEHP-8400-MP Service manual

Service	DEH-P840MP/XN/UC
Manual	ORDER NO.
	CRT2845

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

DEH-P840MP XN/UC

DEH-P8400MP DEH-P8450MP

XN/UC

XN/ES

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

Model No.	Order No.	Mech. Module	Remarks
CX-3007	CRT2820	S9MP3	CD Mech. Module:Circuit Description, Mech.Description, Disassembly

CONTENTS

1.	SAFETY INFORMATION ............................................					3		7. GENERAL INFORMATION .......................................	65
2.	EXPLODED VIEWS AND PARTS LIST .......................					4		7.1 DIAGNOSIS ........................................................	65
3.	BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...					18		7.1.1 DISASSEMBLY .........................................	65
4.	PCB CONNECTION DIAGRAM ................................					38		7.1.2 CONNECTOR FUNCTION DESCRIPTION .......	74
5.	ELECTRICAL PARTS LIST ........................................					48		7.2 PARTS .................................................................	75
6.	ADJUSTMENT..........................................................					55		7.2.1 IC................................................................	75
								7.2.2 DISPLAY ....................................................	92
								7.3 OPERATIONAL FLOW CHART ...........................	93
								7.4 CLEANING ..........................................................	93
								8. OPERATIONS AND SPECIFICATIONS.....................	94

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

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 2002	K-ZZY. FEB. 2002 Printed in Japan

DEH-P840MP,P8400MP,P8450MP

[ 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.

- CD Player Service Precautions

1.For pickup unit(CXX1550) handling, please refer to"Disassembly"(see page 65)

During replacement, handling precautions shall be taken to prevent an electrostatic discharge(protection by a jumper-solder).

2.During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector is plugged or unplugged.

3.Please checking the grating after changing the service pickup unit(see page 59).

2

DEH-P840MP,P8400MP,P8450MP

1. SAFETY INFORMATION

CAUTION

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.

WARNING

This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 - Proposition 65

3

DEH-P840MP,P8400MP,P8450MP
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING (DEH-P840MP)
5	37	3
6
	30
7					27
	4	36 32
					28
8	35	33	21	29
	31				22
9
34					25	24
				26
					23
10
					13
			12
		2			1
				15
14
	19
18
17
	11
		18	17
20
				16
4

DEH-P840MP,P8400MP,P8450MP

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.)

-PACKING SECTION PARTS LIST (DEH-P840MP)

Mark	No.	Description	Part No.	Mark		No.	Description	Part No.
	1-1	Owner’s Manual	CRD3569			22	Screw Assy	CZE3169
	1-2	Installation Manual	CRD3570	*		23	Polyethylene Bag	CEG-127
*	1-3	Caution Card	CRP1268	*		24	Hexagonal Wrench	CZE3176
*	1-4	Warranty Card	CRY1070	*		25	Screw	RMZ30H060FBK
	1-5	Polyethylene Bag	CEG1116			26	Belt	CZN7661
	2	Cord Assy	CDE6563			27	Holder Assy	CZX3172
	3	Accessory Assy	CEA3142			28	Holder Assy	CZX3173
	4	Spring	CBH1650			29	Remote Control Assy	CZX3257
	5	Screw Assy	CEA3140			30	Screw Assy	CEA3144
	6	Screw	BPZ20P060FMC			31	Screw	BMZ50P060FMC
*	7	Polyethylene Bag	CEG-127			32	Screw	CBA-102
	8	Handle	CNC5395			33	Screw	CBA1002
	9	Bush	CNV3930	*		34	Polyethylene Bag	CEG-127
*	10	Polyethylene Bag	CEG-158			35	Screw	CMZ50P060FMC
	11	Polyethylene Bag	CEG1185			36	Nut	NF50FMC
	12	Case Assy	CXB8574			37	Strap	CNC5402
*	13	Battery	CEX1030
	14	Sub Carton	CHA3258
	15	Carton	CHG4661
	16	Contain Box	CHL4661
	17	Protector	CHP2538
	18	Protector	CHP2539
	19	Protector	CHP2541
	20	Protector	CHP2546
	21	Remote Control Assy	CXB9202

- Owner's Manual, Installation Manual

Part No.	Language
CRD3569	English, French
CRD3570	English, French

5

	DEH-P840MP,P8400MP,P8450MP
	2.2 PACKING (DEH-P8400MP)
	5	29	3
	6
		22
	7
		4	28 24
	8	27	25
		23
	9
	26
			21
	10		13
			12
		2	1
			15
	14
	19
	18
	17
	11
		18	17
	20
			16
	6

DEH-P840MP,P8400MP,P8450MP

- PACKING SECTION PARTS LIST (DEH-P8400MP)

Mark	No.	Description	Part No.	Mark		No.	Description	Part No.
	1-1	Owner’s Manual	CRD3571			17	Protector	CHP2538
	1-2	Installation Manual	CRD3572			18	Protector	CHP2539
*	1-3	Caution Card	CRP1268			19	Protector	CHP2541
*	1-4	Card	ARY1048			20	Protector	CHP2546
	1-5	Polyethylene Bag	CEG1116			21	Remote Control Unit	CXB8743
	2	Cord Assy	CDE6563			22	Screw Assy	CEA3144
	3	Accessory Assy	CEA3142			23	Screw	BMZ50P060FMC
	4	Spring	CBH1650			24	Screw	CBA-102
	5	Screw Assy	CEA3140			25	Screw	CBA1002
	6	Screw	BPZ20P060FMC	*		26	Polyethylene Bag	CEG-127
*	7	Polyethylene Bag	CEG-127			27	Screw	CMZ50P060FMC
	8	Handle	CNC5395			28	Nut	NF50FMC
	9	Bush	CNV3930			29	Strap	CNC5402
*	10	Polyethylene Bag	CEG-158
	11	Polyethylene Bag	CEG1185
	12	Case Assy	CXB8574
*	13	Battery	CEX1065
	14	Sub Carton	CHA3258
	15	Carton	CHG4662
	16	Contain Box	CHL4662

- Owner's Manual, Installation Manual

Part No.	Language
CRD3571	English, French
CRD3572	English, French

7

DEH-P840MP,P8400MP,P8450MP
2.3 PACKING (DEH-P8450MP)
		3
	30			27
	4	33
				28
8	35	21	29
	31			22
9
34				25	24
			26
				23
10
				13
		12
		2		1
			15
14
	19
18
17
	11
		17
20		18
			16
8

DEH-P840MP,P8400MP,P8450MP

- PACKING SECTION PARTS LIST (DEH-P8450MP)

Mark	No.	Description	Part No.	Mark		No.	Description	Part No.
	1-1	Owner’s Manual	CRD3573			19	Protector	CHP2541
	1-2	Owner’s Manual	CRD3574			20	Protector	CHP2546
	1-3	Installation Manual	CRD3575			21	Remote Control Assy	CXB9202
*	1-4	Caution Card	CRP1268			22	Screw Assy	CZE3169
	1-5	Polyethylene Bag	CEG1116	*		23	Polyethylene Bag	CEG-127
	2	Cord Assy	CDE6563	*		24	Hexagonal Wrench	CZE3176
	3	Accessory Assy	CEA3143	*		25	Screw	RMZ30H060FBK
	4	Spring	CBH1650			26	Belt	CZN7661
	5-7	•••••				27	Holder Assy	CZX3172
	8	Handle	CNC5395			28	Holder Assy	CZX3173
	9	Bush	CNV3930			29	Remote Control Assy	CZX3257
*	10	Polyethylene Bag	CEG-158			30	Screw Assy	CEA2941
	11	Polyethylene Bag	CEG1088			31	Screw	BMZ50P060FMC
	12	Case Assy	CXB8574			32	•••••
*	13	Battery	CEX1030			33	Screw	CBA1002
	14	Sub Carton	CHA3258	*		34	Polyethylene Bag	CEG-127
	15	Carton	CHG4663			35	Screw	CMZ50P060FMC
	16	Contain Box	CHL4663
	17	Protector	CHP2538
	18	Protector	CHP2539

- Owner's Manual, Installation Manual

Part No.	Language
CRD3573	English, Spanish
CRD3574	Portuguese(B), Arabic
CRD3575	English, Spanish, Portuguese(B), Arabic

9

DEH-P840MP,P8400MP,P8450MP

2.4 EXTERIOR(1)

10

DEH-P840MP,P8400MP,P8450MP

(1) EXTERIOR(1) SECTION PARTS LIST

Mark No.	Description	Part No.		Mark	No.	Description	Part No.
1	Screw	BMZ26P040FMC			26	Plug(CN811)	CKS-787
2	Screw	BSZ26P060FMC			27	•••••
3	Screw	BSZ30P050FZK	*		28	Plug(CN101)	CKS1058
4	Screw	BSZ30P080FMC			29	Connector(CN832)	CKS1082
5	Screw	BSZ30P160FMC	*		30	Connector(CN831)	CKS2211
6	Cord Assy	CDE6563			31	Connector(CN351)	CKS3606
7	Fuse(10A)	CEK1136			32	Connector(CN723)	CKS3835
8	•••••				33	Pin Jack(CN402)	CKX1046
9	Cap	CNS1472			34	Holder	CNC5399
10	Resistor	RS1/2PMF102J			35	Holder	CNC9711
11	Flat Cable	CDE7021			36	Holder	CNC9713
12	Cord Assy	CDE7026			37	Heat Sink	CNR1615
13	Antenna Cable	CDH1266			38	FM/AM Tuner Unit	CWE1563
14	Holder	CNC6469			39	Holder	CNC8815
15	Holder	CNC8659			40	Case Unit	CXB8524
16	Holder	CNC9708			41	Remote Control Assy	See Contrast table(2)
17	Cushion	CNM4870			42	Cover	See Contrast table(2)
18	Insulator	CNM7543			43	CD Mechanism Module(S9MP3)	CXK5556
19	Panel	CNS6863			44	IC(IC301)	PAL007A
20	Tuner Amp Unit	See Contrast table(2)			45	Screw	ISS26P055FUC
21	Screw	ASZ26P080FMC			46	Transistor(Q752,921)	2SD2396
22	Screw	BMZ26P140FMC			47	Remote Control Unit	See Contrast table(2)
23	Clamper	CEF1008			48	Cover	See Contrast table(2)
24	Clamper	CEF1009
25	Plug(CN981)	CKM1278

(2) CONTRAST TABLE

DEH-P840MP/XN/UC, DEH-P8400MP/XN/UC and DEH-P8450MP/XN/ES are constructed the same except

for the following:

Mark No. Symbol and Description			Part No.
		DEH-P840MP/XN/UC	DEH-P8400MP/XN/UC	DEH-P8450MP/XN/ES
20	Tuner Amp Unit	CWM8042	CWM8043	CWM8044
41	Remote Control Assy	CZX3257	Not used	CZX3257
42	Cover	CZN7655	Not used	CZN7655
47	Remote Control Unit	Not used	CXB8743	Not used
48	Cover	Not used	CNS7068	Not used

11

DEH-P840MP,P8400MP,P8450MP

2.5 EXTERIOR(2)

For lubricants points, please refer to"Disassembly"(see page 65)

12

DEH-P840MP,P8400MP,P8450MP

(1) EXTERIOR(2) SECTION PARTS LIST

Mark No.	Description	Part No.	Mark No.		Description	Part No.
1	Screw	BPZ20P060FMC		47	Screw	ISS26P055FUC
2	Screw	BPZ20P080FZK	48		Case Unit	CXB7968
3,4	•••••		49		Cover Unit	CXB8127
5	Screw(M2x2)	CBA1250	50		Spring	CBH2545
6	Holder	CNC9800	51		Cushion	CNM7550
7	Flexible PCB	CNP6498	52		Panel Unit	CXB7953
8	Keyboard Unit(OEL)	See Contrast table(2)	53		Drive Unit	CXB8138
9	Connector(CN1801)	CKS4175	54		Screw	BMZ26P040FMC
10	Holder	CNC9649	55		Screw(M2x3)	CBA1061
11	Tape	CNM7514	56		Screw(M2x2)	CBA1250
12	Holder	CNV6916	57		Screw(M2x1.4)	CBA1562
13	OEL Unit	MXS8018	58		Spring	CBH2525
14	Sub Grille Assy	See Contrast table(2)	59		Spring	CBH2526
15	Case Unit	CXB7967	60		Spring	CBL1557
16	Detach Grille Assy	See Contrast table(2)	61		Cord	CDE6737
17	Screw	BPZ20P080FZK	62		Holder	CNC9678
18	Button(EJECT)	CAC7241	63		Holder	CNC9679
19	Button(OPEN/BAND)	CAC7242	64		Gear	CNV6932
20	Button(SRC/PAUSE/CLK)	CAC7244	65		Gear	CNV6933
21	Button(1-6)	CAC7246	66		Gear	CNV6935
22	Button(CROSS)	CAC7247	67		Gear	CNV6936
23	Button(EQ)	CAC7248	68		Lever	CNV6937
24	Spring	CBH2543	69		Switch(S951)	CSN1051
25	Insulator	CNM7649	70		Spring Switch(S952)	CSN1052
26	Sheet	CNM7824	71		Switch(S953)	CSN1058
27	Lighting Conductor	CNV6913	72		Chassis Unit	CXB7956
28	Arm	CNV6963	73		Holder Unit	CXB7959
29	Keyboard Unit(LCD)	CWM8056	74		Holder Unit	CXB7960
30	LCD(LCD1901)	CAW1704	75		Arm Unit	CXB7961
31	Connector(CN1901)	CKS4549	76		Arm Unit	CXB7962
32	Holder	CNC9648	77		Arm Unit	CXB7963
33	Sheet	CNM7512	78		Arm Unit	CXB7964
34	Lighting Conductor	CNV6914	79		Arm Unit	CXB7965
35	Connector	CNV6915	80		Arm Unit	CXB7966
36	Grille Unit	See Contrast table(2)	81		Motor Unit(M951)	CXB8939
37	Knob Assy	CXB8026	82		Gear Unit	CXB8940
38	Spring	CBL1321	83		Washer	YE15FUC
39	Screw(M2x2)	CBA1250	84		Screw	CBA1559
40	Screw	CBA1561	85		Sheet	CNM7839
41	Spring	CBH2530	86		PCB	CNX3607
42	Cushion	CNM7551	87		Switch Unit	CWS1370
43	Arm	CNV6962
44	Guide	CNV6967
45	Guide	CNV6968
46	Flexible PCB	CNP6869

13

DEH-P840MP,P8400MP,P8450MP

(2) CONTRAST TABLE

DEH-P840MP/XN/UC, DEH-P8400MP/XN/UC and DEH-P8450MP/XN/ES are constructed the same except

for the following:

Mark No. Symbol and Description			Part No.
		DEH-P840MP/XN/UC	DEH-P8400MP/XN/UC	DEH-P8450MP/XN/ES
8	Keyboard Unit(OEL)	CWM8051	CWM8052	CWM8052
14	Sub Grille Assy	CXB9363	CXB9362	CXB9364
16	Detach Grille Assy	CXB8092	CXB8093	CXB8094
36	Grille Unit	CXB7942	CXB7941	CXB7943

14

DEH-P840MP,P8400MP,P8450MP

15

DEH-P840MP,P8400MP,P8450MP

2.6 CD MECHANISM MODULE

16

DEH-P840MP,P8400MP,P8450MP

- CD MECHANISM MODULE SECTION PARTS LIST

Mark No. Description		Part No.	Mark No. Description			Part No.
1	CD Core Unit(S9MP3)	CWX2618		46	Gear	CNV6320
2	Connector(CN901)	CKS4188	47		Arm	CNV6322
3	Connector(CN101)	CKS3486	48		Arm	CNV6323
4	Screw	BMZ20P025FMC	49		Arm	CNV6324
5	Screw	BSZ20P040FMC	50		Arm	CNV6888
6	Screw(M2x4)	CBA1362	51		Arm	CNV6889
7	Screw(M2x3)	CBA1527	52		Guide	CNV6327
8	Screw	CBA1545	53		Arm	CNV6924
9	Washer	CBF1037	54		Guide	CNV6921
10	Washer	CBF1038	55		Rack	CNV6923
11	Washer	CBF1039	56		Clamper	CNV6331
12	Washer	CBF1060	57		Arm	CNV6332
13	Spring	CBH2378	58		Guide	CNV6333
14	Spring	CBH2379	59		Cover	CNV6334
15	Spring	CBH2514	60		Arm	CNV6335
16	Spring	CBH2533	61		Guide	CNV6336
17	Spring	CBH2382	62		Roller	CNV6338
18	Spring	CBH2383	63		Damper	CNV6175
19	Spring	CBH2384	64		Damper	CNV6662
20	Spring	CBH2527	65		Guide	CNV6925
21	Spring	CBH2386	66		Chassis Unit	CXB7980
22	Spring	CBH2537		* 67 Arm Unit		CXB7983
23	Spring	CBH2390	68		Arm Unit	CXB7984
24	Spring	CBH2391	69		Arm Unit	CXB7985
25	Spring	CBH2523	70		Motor Unit(M2)	CXB5903
26	Spring	CBH2426	71		Screw Unit	CXB5904
27	Spring	CBH2444	72		Gear Unit	CXB8076
28	Spring	CBL1561	73		Bracket Unit	CXB7982
29	Spring	CBL1553	74		Motor Unit(M1)	CXB6007
30	Shaft	CLA3845	75		Arm Unit	CXB8504
31	Roller	CLA3910	76		Screw(M2x5)	EBA1028
32	Frame	CNC9654	77		Screw	JFZ20P020FMC
33	Lever	CNC9664	78		Screw	JGZ17P020FZK
34	Lever	CNC8949	79		Washer	YE15FUC
35	Arm	CNC9661	80		Washer	YE20FUC
36	Arm	CNC9016	81		Pickup Unit(Service)(P9MP3) CXX1550
37	Arm	CNC9017	82		Screw	IMS26P030FMC
38	Bracket	CNC9123	83		Guide	CNV6922
39	Frame	CNC9656	84		Roller	CNV6887
40	Belt	CNT1086	85		Spring	CBH2509
41	Gear	CNV6886	86		Spring	CBH2512
42	Gear	CNV6316	87		Spring	CBH2536
43	Gear	CNV6317	88		Collar	CNV6906
44	Gear	CNV6318
45	Gear	CNV6319

17

1		2		3		4

DEH-P840MP,P8400MP,P8450MP

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

A

TUNER AMP UNIT

FM/AM TUNER UNIT

CN402

FM/AM 1ST IF 10.7MHz

MPXREF 41kHz

AMANT

AMRF

T51 Q51 CF51

CF52 CF53

AMDET

ANT

28

ATT

IC 2 FM MPX

L ch

2

6

R ch 5

ANT1 ADJ

IC1

COMP 21

MIXER, IF AMP, DET.

LDET 18

27 FMANT

ATT

26 RFGND

FMRF

CF202

RF ADJ

AM 2ND IF

X901

IC 3

EEPROM

10.25MHz

450kHz

NC

DI/DO

FMLOCL

NC

DGND CE2

CK CE1

SDBW

SL

FMSD

NL1

NL2

STIND

WC

NC

CREQ

VDD

ANT2 ADJ

VCC

23

LOCH

25

LOCL

7

17 20 22 10 19

14

24

9

11 12

15 16

8

13

2

3

4

1

VCC

VDD

B

Q101

ASENB1

BU

CN101

Q102

5

IP-BUS DRIVER

TX

1

5

IC 102

1

8

RX

D CD CORE UNIT(S9MP3)

6 HA12187FP 2

7

8

11

IPPW

IC 202

BUS-

MSM51V4265EP-70TS

BUS+

TUN L

PICKUP UNIT

DRAM

BUSL+

BUSL+

(SERVICE)(P9MP3)

BUSL-

BUSL-

CN101

V3R3D

CN901

CD L

LASER

CN723

L-OUT

DIODE

LD-

15

Q101

142

LD

IC 201

LOUT 35

14

8

MIC231

MD

UPD63760GJ

MUTE

Q602

5

141

PD

RF-AMP,CD DECODER,

Q603

AC,BD

VR231

HOLOGRAM

MP3 DECODER,

UNIT

F,E

DIGITAL SERVO / DATA PROCESSOR

FOCUS ACT.

FO+

1

FOP

BUZZER

TO+

TOP

MONITOR TRACKING ACT.

4

38

39

42

43

24

WAIT,

PEE

DIODE

LD+

TD/FD

SD/MD

14

RFOK

12

FOP

X201

X202

13

TOP

IC 702

SPECTRUM ANALYZER

SPINDLE

CD

IC 251

M

DRIVER

C

MOTOR

16

SOP

XWINT,

TC74VHCT08AFT

BA3834F

SYSTEM CONTR

15

SOM

XWAIT,

FOK

IC 601(2/2)

LOAD/CARRIAGE

M

18

LCOP

22

31

CDMUTE 33

MOTOR

17

LCOM

LOEJ

LOEJ

P-BUS

PD5740A(E

P-BUS

CONT

9

29

CONT

IC 701

PD5741A(U

IC 301

PE5269A

VD

VD

CD CONTROLLER

VD

2

20

BA5996FM

78

Q752

DSCSNS

3

19

80

HOME

WMA DECODER

Q751

28

S901

CD3VON

IC 501

BU

HOME

UPD61002GC

12EJ

DISC

VDCONT

27

15

7

VDCONT

CLAMP SENSE

8EJ SENSE

SENSE

SENSE

+3.3V REGULATOR

1

1

4,5

IC 502

3VDD

IC 703

1

21

VDD

V2R5

4

2

Q811

BA25BC0WFP

S-818A33AUC-BGN

BU

5VDD

+2.5V REGULATOR

Q812

1

V3R3D

4

IC 203

2

VD

11

FLPPW

BA033SFP

+3.3V REGULATOR

CN811

4

5

AUTOMATIC

6

MOTOR1

3

IC 811

6

66

FLPOPN

D

M

FLAP MOTOR

5

MOTOR2

14

BA6288FS

11

65

FLPCLS

E SWITCH PCB

CLOSE

4

FCLSW1

69

fclssw

OPEN

3

FOPSW1

68

fopnsw

EJECT

2

FEJSW1

67

flpejsw

1

18

1

2

3

4

5

6

7

8

DEH-P840MP,P8400MP,P8450MP

A

HIGH OUT

CN351

RL

11 IN5

OUT1

18

SW

11

SW

IC 571

Q351

PA2028A

PL

7

OUT3

16

FL

7

FL

IN1

Q352

FL

9 IN3

OUT5

14

RL

3

RL

SYSTEM CONTROLLER

Q353

IC 601(1/2)

PD5740A(ES)

VDD REGULATOR

5V REGULATOR

PD5741A(UC)

Q901

Q911

VDD

VDD2

ACC

ACC

50

SD

BACKUP SENSE

BU

CN981

97

73

BACK UP

FUSE

SL

B.UP

bsens

1

72

74

Q931

10A

ACC

TUNPCE

asens

5

ACC

57

TUNPCK

B

71

tunpce@

ACC SENSE

Q941

55

TUNPDO

isens

83

ILL SENSE

ILL

3

ILM

82

ASENBO

Q951

VDD

TELMUTE

TX

RX IPPW

10

8

MUTE

TELIN

30

29 81

TELEPHONE MUTE

ELECTRONIC VOLUME/

GND

2

GND

POWER AMP

TUN L

42

SOURCE SELECTOR

IN3-L

PL

12

FL-

3

FL-

10

FL-

USL+

43

IN4+L

IC 131

12

IC 301

FL+

5

FL+ 12

FL+

USL-

44

IN4-L

FL

10

FLIN

PAL007A

RL-

23

RL-

9

RL-

IN1-L

PML009A

RL

11

14

RLIN

D L

41

RL+

21

RL+

11

RL+

IN2-L

MIC_IN

MUTE

STBY B.REMOTE

13

22

4

25

B.REM

4

B.REM

MUTE

Q503

BU

SYS+B REGULATOR

Q921

Q922

SYS+B

BU

Q301

MUTE

87

SYSPW

23

SYSPW

Q923

Q501

XOUT

13

MUTE

X601

TEM CONTROLLER

XIN

15

B KEYBOARD UNIT(OEL)

C

IC 601(2/2)

OEL+B REGULATOR

CN831

PD5740A(ES)

Q871

Q1807

6

IC 871

1

OEL+B

OEL+B

8

IC 1802

PD5741A(UC)

BU

5

4

OEL UNIT

NJM2360M

PD8091A

Q872

Q1806

(DEH-P840MP)

PD8092A

DPDT1

4

5

DPDT2

(DEH-P8400MP,P8450MP)

OELPW

22

KYDT1

6

3

KYDT2

27

GRILLE -COM

ROM

Q831

DPDT

4

IC 1806

2

28

IC 1801

DPDT1

31

VDD2

SWVDD5V

1

8

SWVDD5V2

KYDT

TC7SET08FU

PD5745A

KYDT1

32

11 XOUT

SWVDD1

40

ILM+B2

2

7

ILM+B2

5

IC 1805

1

X1801

13

XIN

S-818A33AUC-BGN

3.3V

RESET

Q832

RESET

12

1

IC 651

2

VDD

CN1801

S-80735ANDZI

Q833

KEY MATRIX

ILMPW1

42

F CONNECTOR PCB

C KEYBOARD UNIT(LCD)

Q834

ILM+B REGULATOR

CN832

CN1901

LCD

Q962

4

IC 1901

OPT IN

BU

ILM+B

4

4

ILM+B

SW5V

RS-140

Q963

Q651

RESET

1

RST1

5

5

RST

17

GRILLE -COM

REM

XO 22

D

ILMPW2

43

DPDT2

10

10

DPDT

18

DPDT

IC 1902

X1901

KYDT2 11

KYDT

20

PD6340A

11

KYDT

XI 23

Q971

SWVDD5V

DPDT2

35

VDD2

SWVDD5

6

6

SW5V

KYDT2

36

SWVDD2

79

VDD

7

7

Q972

KEY MATRIX

19

5

6

7

8

1		2		3		4

DEH-P840MP,P8400MP,P8450MP

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

				Large size
	A			SCH diagram
		A-a	A-b

B

C

D

			The > mark
			the importan
			Therefore, w
A-a	A-b	Guide page	identical desi
			VD REG
A-a	A-b	Detailed page

E-VO

IP-BUS

DRIVER

D CN901

FM:-20.5dBs

AM:-31.0dBs

IP-BUS:+2.2dBs

CD:0.0dBs

	TUNER
FM(100%):-19.5dBs AM(30%):-30.0dBs	SYSTEM C
UNIT	PD5
	(DEH-P840
TUNERFM/AM	PD5
	(DEH-P

FLAP MOTOR

AND SENSE

OEL+B REG

SW VDD

A	E		M951		M	CSN1052	(CLOSE) CSN1051 (OPEN) CSN1058	(EJECT)	E	B CN1801	F
			CXB8939
			AUTOMATIC FLAP
				SWITCH PCB
20	A	E

1		2		3		4

5		6		7		8

DEH-P840MP,P8400MP,P8450MP

A-b

A

found on some component parts indicates ce of the safety factor of the part.

hen replacing, be sure to use parts of ignation.

A TUNER AMP UNIT

	SPECTRUM
	ANALYSER
	ASL
L	HI-OUT
			RCA OUT
		12	SUB
		11	WOOFER
			L CH
		10	SUB
		9
			WOOFER
		8	R CH
		7	FRONT
			L CH
		6
		5	FRONT
			R CH
		4
		3	REAR
			L CH
		2
		1	REAR	B
			R CH
			FM:+10.1dBs
			AM:-0.4dBs
FM:+2.6dBs	MUTE		IP-BUS:+15.8dBs
			CD:+15.6dBs
AM:-7.9dBs
IP-BUS:+8.3dBs
CD:+8.1dBs
	POWER AMP	PAL007A

			RESET
					5V REG
CONTROLLER
5741A					>
					CEK1136
					10A
MP, P8400MP)					GND
5740A	**	**		SYS+B REG	ILL
					B.REM
8450MP)					ACC
					TEL
					RL—
					VDD REG
					FL—
					RL+
	**				FL+
	DEH-P840MP		R626	R628	RR—
			Not used	100K	FR—
	DEH-P8400MP		100K	Not used
					RR+
	DEH-P8450MP		Not used	100K
					FR+
					FM:+28.6dBs
					AM:+18.1dBs
				MUTE	IP-BUS:+34.3dBs
					CD:+34.1dBs
					SENSE
					TEL MUTE
	SW
	VDD
	BL+B
	REG

C

ILM+B

REG

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.

Decimal points for resistor				D
and capacitor fixed values
are expressed as :
2.2	←	2R2
0.022		←	R022

A A 21

5		6		7		8

1		2

DEH-P840MP,P8400MP,P8450MP

	-A	The>mar importathe Therefore,w identicalde	E-V
	b - A
A	Aa-b

B

3		4

1

FM:-20.5dBs AM:-31.0dBs BUS:+2.2dBs	CD:0.0dBs
IP-

D CN901

C

D

VD REG

IP-BUS DRIVER

TUNER

M(30%):-0dBs.30 M(100%):-5dBs.19

A-a

22 A-a

1		2		3		4

5

SYSTEM		PD (DEH-P84	PD (DEH

6 7 8

DEH-P840MP,P8400MP,P8450MP

	F	A-b	b
			a-
2			- A
			A	A

OEL+B REG

	SW VDD	B CN1801
		E	PCB
		(EJECT)
		CSN1058
MOTORFLAP	SENSEAND	(OPEN)	SWITCH
		M951 FLAPAUTOMATIC CXB8939
		CSN1051
		(CLOSE)
		CSN1052
		M

B

A-a A-b

C

	AM(30%):-30	FM/AMTUNERUNIT
	FM(100%):-19

D

A-a E

A-a E 23

5		6		7		8

D

24			b-A
1	A
			> mark found on some component parts indicates
	-
			importance of the safety factor of the part.
	b
			refore, when replacing, be sure to use parts of

ntical designation.

ASL

E-VOL

2

3

FM:+2.6dBs

AM:-7.9dBs

IP-BUS:+8.3dBs

CD:+8.1dBs

1

4

C		B		A

A-a A-b

A-a A-b

A TUNER AMP UNIT

SPECTRUM

ANALYSER

HI-OUT

RCA OUT

	12	SUB
	11	WOOFER
		L CH
	10	SUB
	9
		WOOFER
	8	R CH
	7	FRONT
		L CH
	6
	5	FRONT
		R CH
	4
	3	REAR
		L CH
	2
	1	REAR
		R CH

MUTE

POWER AMP

PAL007A

RESET

5V REG

FM:+10.1dBs

AM:-0.4dBs

IP-BUS:+15.8dBs

CD:+15.6dBs

2 1 P840MP,P8400MP,P8450MP-DEH

3

4

SYSTEM CONTROLLER

PD5741A

(DEH-P840MP, P8400MP)

PD5740A

(DEH-P8450MP)

5

2

6

7

F

b-A 25 b-A 8

				5V REG
				>
				CEK1136
				10A
				GND
**	**		SYS+B REG	ILL
				B.REM
				ACC
				5
				TEL
				RL—
				VDD REG
				FL—
**				RL+
				FL+
		R626	R628
DEH-P840MP		Not used	100K	RR—
DEH-P8400MP		100K	Not used	FR—
DEH-P8450MP		Not used	100K	RR+
				FR+
				FM:+28.6dBs
				AM:+18.1dBs
			MUTE	IP-BUS:+34.3dBs
				CD:+34.1dBs
				SENSE
				6
				TEL MUTE

SW

VDD

BL+B

REG

ILM+B

REG

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.

A-a A-b

Decimal points for resistor and capacitor fixed values are expressed as :

2.2	←	2R2
0.022		←	R022

A-a A-b

8 7 P840MP,P8400MP,P8450MP-DEH

D		C		B		A

1		2		3		4

DEH-P840MP,P8400MP,P8450MP

3.3 KEYBOARD UNIT(OEL)

A

A CN831

B

C

D

B

26 B

1		2		3		4

5		6		7		8

DEH-P840MP,P8400MP,P8450MP

B KEYBOARD UNIT(OEL)

A

ROM

PD8091A(DEH-P840MP)

PD8092A(DEH-P8400MP, P8450MP)

GRILLE -COM

B

C

D

OEL UNIT MXS8018

B

B 27

5		6		7		8

A

1		2

DEH-P840MP,P8400MP,P8450MP

3.4 KEYBOARD UNIT(LCD)

A CN832

F

CONNECTOR

PCB

3		4

	VOLUME
RESET	REMOTE CONTROL
	SENSOR

B

CLK

PAUSE

SRC

C

D

C F

28 C

1		2		3		4

5		6		7		8

DEH-P840MP,P8400MP,P8450MP

C KEYBOARD UNIT(LCD)

A

GRILLE -COM

B

C

LCD

D

C C

29

5		6		7		8

1		2		3		4

DEH-P840MP,P8400MP,P8450MP

3.5 CD MECHANISM MODULE(GUIDE PAGE)

D-a

SIGNAL LINE

A F FOCUS SERVO LINE

T TRACKING SERVO LINE

C CARRIAGE SERVO LINE

S SPINDLE SERVO LINE

PICKUP UNIT
(SERVICE)(P9MP3)
		3300P
		R022
		#
F	F
B	T	F
	T	F
		T
F	F	T
	F
	F	0
		!

S

C

T

F

S

C

T

F

	SWITCHES:
C	CD CORE UNIT(S9MP3)
	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.
							1
									@
								T		S
								7	5
										C
								F	6
								8		3
	SPINDLE MOTOR								2
	M1 CXB6007						S			R750
							S	F
								F	C
							C	T	C
							C	T	S
									S
D
	LOADING/CARRIAGE
	MOTOR
	M2 CXB5903
										PD9023A
30	DD							3		4
	1						2