PIONEER DEH 3450, DEH 2450F Service Manual

Service	DEH-3450/XN/ES
Manual	ORDER NO.
	CRT2758

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-3450 XN/ES

DEH-2450F XN/ES

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

Model No.	Order No.	Mech. Module	Remarks
CX-977	CRT2624	S9	CD Mech. Module:Circuit Description, Mech.Description, Disassembly

CONTENTS

1.	SAFETY INFORMATION ............................................					3		7. GENERAL INFORMATION .......................................	42
2.	EXPLODED VIEWS AND PARTS LIST .......................					4		7.1 DIAGNOSIS ........................................................	42
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...						10		7.1.1 DISASSEMBLY .........................................	42
4.	PCB CONNECTION DIAGRAM ................................					24		7.1.2 CONNECTOR FUNCTION DESCRIPTION .......	45
5.	ELECTRICAL PARTS LIST ........................................					32		7.2 PARTS .................................................................	46
6.	ADJUSTMENT..........................................................					38		7.2.1 IC................................................................	46
								7.2.2 DISPLAY ....................................................	55
								7.3 OPERATIONAL FLOW CHART ...........................	56
								7.4 CLEANING ..........................................................	57
								8. OPERATIONS AND SPECIFICATIONS.....................	58

For details, refer to "Important symbols for good services" on the next page.

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 2001	K-ZZD. NOV. 2001 Printed in Japan

DEH-3450,2450F

[ 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(CXX1480) handling, please refer to"Disassembly"(see page 42).

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 pickup unit(see page 39).

4.In this product, because the memory capacity of the microcomputer is insufficient, the test mode is not installed. However grating of the pickup unit can be confirmed.

2

DEH-3450,2450F

1. SAFETY INFORMATION

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.

3

DEH-3450,2450F

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

	20	19
7
8
5
6
		1
10		17
3
11		2
9		15

16

12

14 13

4

DEH-3450,2450F

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.)

(1) PACKING SECTION PARTS LIST

Mark No. Description			Part No.		Mark No. Description			Part No.
	1-1	Owner’s Manual	CRD3499	*		9	Polyethylene Bag	CEG-158
	1-2	Installation Manual	CRD3503			10	Handle	CNC5395
	1-3	Polyethylene Bag	CEG1116			11	Bush	CNV3930
	2	Cord Assy	CDE6468			12	Polyethylene Bag	CEG-162
	3	Spring	CBH1650			13	Carton	See Contrast table(2)
	4	•••••				14	Contain Box	See Contrast table(2)
	5	Screw	CBA1002			15	Protector	CHP2251
*	6	Polyethylene Bag	CEG-127			16	Protector	CHP2252
	7	Screw	CRZ50P090FMC			17	Case Assy	CXB3520
	8	Screw	TRZ50P080FMC			18	•••••
						19	Remote Control Unit	See Contrast table(2)
				*		20	Battery	See Contrast table(2)

(2) CONTRAST TABLE

DEH-3450/XN/ES and DEH-2450F/XN/ES are constructed the same except for the following:

			Part No.
Mark No. Symbol and Description		DEH-3450/XN/ES		DEH-2450F/XN/ES
13	Carton	CHG4545		CHG4641
14	Contain Box	CHL4545		CHL4641
19	Remote Control Unit	CXB8743		Not used
* 20	Battery	CEX1065		Not used

- Owner's Manual, Installation Manual

Model	Part No.	Language
DEH-3450/XN/ES	CRD3499	English, Spanish, Portuguese(B), Chinese, Arabic
DEH-2450F/XN/ES	CRD3503

5

DEH-3450,2450F

2.2 EXTERIOR

C

A

B

6

DEH-3450,2450F

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description		Part No.	Mark No.		Description	Part No.
1	Screw	BMZ30P040FZK	41		Pin	CNV6486
2	Screw	BMZ30P100FMC	42		Lighting Conductor	CNV6487
3	Screw	BSZ26P060FMC	43		Gear	CNV6507
4	Screw	BSZ30P060FMC	44		Arm	CNV6508
5	Cord Assy	CDE6468	45		Panel Unit	CWM7375
6	•••••		46		Socket(CN1950)	CKS3550
7	Cable	CDE6610	47		Connector(CN1951)	CKS4206
8	Fuse(10A)	CEK1136	48		Damper Unit	CXB5070
9	Case	CNB2686	49		Holder Unit	CXB6356
10	Holder	CNC5704	50		Holder Unit	CXB6357
11	Holder	CNC8659	51		Clutch Unit	CXB6358
12	Cushion	CNM4870	52		Screw	IMS20P045FZK
13	Insulator	CNM6948	53		Detach Grille Assy	See Contrast table(2)
14	Tuner Amp Unit	See Contrast table(2)	54		Screw	BPZ20P100FZK
15	Screw	ASZ26P060FMC	55		Button(1-6)	CAC7225
16	Screw	BPZ26P080FMC	56		Button(OPEN)	CAC7227
17	Screw	BSZ26P160FMC	57		Button(LOUD)	CAC7229
18	Pin Jack(CN351)	CKB1028	58		Button(EQ)	CAC7231
19	Terminal(CN404)	CKF1059	59		Button(CLOCK)	CAC7233
20	Plug(CN901)	CKM1330	60		Button(AUDIO)	CAC7234
21	Plug(CN750)	CKS3537	61		Button(LOCAL)	CAC7235
22	Connector(CN501)	CKS3835	62		Button(BSM)	CAC7236
23	Antenna Jack(CN402)	CKX1056	63		Knob	CAC7527
24	Holder	CNC8615	64		Spring	CBH2430
25	Holder	CNC9619	65		Spring	CBH2431
26	Insulator	CNM6949	66		Spring	CBH2630
27	Heat Sink	CNR1614	67		Cover	CNS6740
28	FM/AM Tuner Unit	CWE1563	68		Holder	CNV6505
29	Holder	CNC8815	69		Holder	CNV6506
30	Chassis Unit	CXB6100	70		Keyboard Unit	See Contrast table(2)
31	Button(EJECT)	CAC6839	71		LCD	See Contrast table(2)
32	Screw(M2x2)	CBA1176	72		Connector(CN1901)	CKS4524
33	Washer	CBF1038	73		Holder	CNC9757
34	Washer	CBF1039	74		Sheet	CNM7647
35	Spring	CBH2428	75		Connector	CNV6440
36	Spring	CBH2429	76		Lighting Conductor	CNV7244
37	Spring	CBL1512	77		Sub Grille Assy	See Contrast table(2)
38	Holder	CNC9096	78		CD Mechanism Module(S9ANA) CXK5501
39	Cover	CNM6854	79		Screw	ISS26P055FUC
40	Panel	CNS6278	80		Transistor(Q510,910)	2SD2396
			81		IC(IC361)	See Contrast table(2)
			82		Panel	See Contrast table(2)
			83		Remote Control Unit	See Contrast table(2)
(2) CONTRAST TABLE			84		Cover	See Contrast table(2)

DEH-3450/XN/ES and DEH-2450F/XN/ES are constructed the same except for the following:

Mark No. Symbol and Description			Part No.
		DEH-3450/XN/ES	DEH-2450F/XN/ES
14	Tuner Amp Unit	CWM7976	CWM8320
53	Detach Grille Assy	CXB8398	CXB8781
70	Keyboard Unit	CWM7979	CWM8370
71	LCD	CAW1707	CAW1724
77	Sub Grille Assy	CXB8415	CXB8787
81	IC(IC361)	PAL007A	TDA7386
82	Panel	CNS7070	CNS6332
83	Remote Control Unit	CXB8743	Not used
84	Cover	CNS7068	Not used

7

DEH-3450,2450F

2.3 CD MECHANISM MODULE

(UD321BR)

(GEM1035)

D

8

DEH-3450,2450F

- CD MECHANISM MODULE SECTION PARTS LIST

Mark No. Description		Part No.	Mark No. Description			Part No.
1	Control Unit	CWX2481		46	Gear	CNV6320
2	Connector(CN701)	CKS1959	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	CNV6339
19	Spring	CBH2384	64		Damper	CNV6340
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)(P9)	CXX1480
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

9

1		2		3		4

DEH-3450,2450F

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1BLOCK DIAGRAM

A TUNER AMP UNIT

A

FM/AM TUNER UNIT

FM/AM 1ST IF 10.7MHz

MPXREF 41kHz

ANTENNA

CN402

AMRF

T51 Q51 CF51

CF52 CF53

AMDET

AMANT

28

ATT

IC 2 FM MPX

L ch

6

R ch

5

ANT ADJ

IC1

COMP 21

MIXER, IF AMP, DET.

LDET

18

27

FMANT

ATT

26 RFGND

FMRF

CF202

6

IMG ADJ

AM 2ND IF

X901

IC 3

76

EEPROM

450kHz

10.25MHz

FMLOCL

VDD

DI/DO

DGND

SDBW

FMSD

STIND

14

RF ADJ

VCC

CREQ

CE2

CE1

NL1

NL2

PCE1

WC

NC

NC

NC

CK

SL

13

LOCH

LOCL

PCK

23

25

7

17

20

22

10

19

14

24

9

11

12

15

16

8

13

2

3

4

1

48

Q410

PDIO

PCE2

PCK

PCE1

SL

SD

PCE2

12

PDIO

11

LOCL

57

VCC

VDD

B

2

I

3

I

PICKUP UNIT

D CONTROL UNIT

(SERVICE)(P9)

LASER

CN101Q101

CN701

CN501

DIODE

LD-

15

9

LDO

RFRPIN 24

38

RFI

L_OUT

85

L-OUT

14

14

CDL

MD

5

8

MDI

FEO

16

43

FEI

78

HOLOGRAM

AC,BD

TEO

14

46

TEI

RF-AMP

SERVO

79

UNIT

F,E

FO+

FOP

CONTROL,

FOCUS ACT.

4

DSP,

TO+

TOP

MONITOR

TRACKING ACT.

1

IC 101

LPF, DAC

DIODE

LD+

14

TA2153FN

VDD

12

FOP

TD/FD

IC 201

14

TOP

SD/MD

TC9495F2

SPINDLE

M

CD

DRIVER

C

MOTOR

16

SOP

15

SOM

LOAD/ CARRIAGE

M

17

LCOP

18

LOEJ

22

LOEJ

10

10

LOEJ

34

LOEJ

MOTOR

LCOM

MUTE

9

CONT

11

11

CONT

23

CONT

IC 401

BA5996FM

DSCSNS

17

17

79

DSCSNS

HOME

16

16

32

HOME

S901

Q510

SYSTE

HOME

VD

VD

2

2

VD

B.U

CONTROL

12EJ

DISC

+5V REGULATOR

CLAMP SENSE 8EJ SENSE

IC 610(2/

SENSE

SENSE

IC 701

2

PE5262

VDD

4

Q511

BA05SFP

1

CD5VON

1

1

CD5VON

VDCONT

21

VDCONT

35

CD5VON

D

10

1

2

3

4

5		6		7		8

DEH-3450,2450F

CN351

Q 351

SYSTEM

CONTROLLER

IC 610 (1/2)

Q359

6

PE5262B

VDD REGULATOR

SD

Q913

76

SL

VDD

B.U

PCE1

14

TUNPCE

13

TUNPCK

PCK

48

TUNPCE2

PCE2

12

TUNPDO

PDIO

11

TUNPDI

VST

VCC REGULATOR

57

VCK

Q910

Q911

LOCL

VDT

VCC

CN901

B.U

SYSPW

B.U

BACKUP

2

Q912

FUSE

IC 361

10A

DEH-3450/XN/ES

PAL007A

2

DEH-2450F/XN/ES

TDA7386

1

1

2

IN2_L

VST/ VCK/ VDT

POWER AMP

ELECTRONIC VOLUME

23

FL-

10

10

3

IC 301

Frontout_L

10

14

FL

IC 361

21

FL+

12

12

IN3_L

11

12

3

RL-

9

Rearout_L

RL

9

PML003AM

5

RL+

11

11

MUTE

STBY

25

22

4

Q921

Q361 MUTE

SYSPW

Q920

asens

ACC

3

3

bsens

B.U

64

ASENS

63

BSENS

52

DEH-3450/XN/ES

ANTIN

38

TELIN

DEH-2450F/XN/ES

42

B.REMOTE

34

LOEJ

SYSPW

6

IC 901

1

B.REM

6

6

TPD1018F

23

44

CONT

MUTE

RESET

60

1

IC 603

2

VDD

RESET

S-80834ANY

79

DSCSNS

64

B

PANEL UNIT

C

KEYBOARD UNIT

DSENS

32 HOME

S750

DSENS

SYSTEM

CN750

CN1950

CN1951

CN1901 S1922 VOLUME

CONTROLLER ROT0

37

ROT0

13

13

9

4

ROT0

ROT1

36

ROT1

12

12

7

6

ROT1

IC 610(2/2) CSENS

80

CSENS

4

4

3

10

CSENS

KEY CONTROL

PE5262B

LCD DRIVER

	KYDT	8		KYDT 14		14	8	5	KYDT		20	KYDT
	DPDT	9		DPDT	11	11	10	3	DPDT		18 DPDT
		Q751
21	VDCONT			ILB+	7	7	ILLUMINATION 4	9	IL+B			LCD
		B.U
	ILMPW	40	B.U	FILM+	5	5			ILLUMINATION
		Q753	Q752	FILM-					DEH-3450/XN/ES			IC 1900
		20			6	6
	FLPILM								REMOTE CONTROL
												PD6340A
	EJECTS	53		EJECT	8	8			SENSOR
									OPT IN
35		VDD					S1950
	CD5VON	41							IC1902	1	17	REM
							EJECT
	SWVDD	Q750		GND	9	9			RS-140
									4			KEY MATRIX
				SW5V	10	10	5	8	SW+5V		56 VDD
											10	VLCD

A

REAR L CH

B

BACK UP

GND

FL-

FL+

RL-

RL+

ACC

C

B.REM

D

11

5		6		7		8

1		2		3		4

DEH-3450,2450F

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
A-a	A-b	SCH diagram
A-a	A-b	Guide page
A-a	A-b	Detailed page

B

C

D

					A-a
FM(100%):-19.5dBs AM(30%):-30dBs			272
			272
	183	183	162	162	ELECTRONIC
UNIT
FM/AM TUNER					R791
					0R0
					SYST
ANTENNA					4.194MHz
JACK
					CSS1023
					104
					393
UNIT
CONTROL					DSENS
D
				UNIT
				KEYBOARD	EJECT
				C
					B PANEL UNIT

12	A	A		B
1

For resistors and capacitors in the circuit diagrams, their resistance values or capacitance values are expressed in codes:

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

2 3 4

A

5	6	7		8
			DEH-3450,2450F
	A-b				A
		A TUNER AMP UNIT
VOLUME		CD:+9.4dBs
			PRE OUT
			RR
			RL
	FM(100%):+3.6dBs
	AM(30%):-6.9dBs
	CD:+10.2dBs
		MUTE
					B
EM CONTROLLER
		600 H
	POWER AMP	2450F/XN/ES-DEH
	3450/XN/ES-DEH		FM(100%):+29.6dBs
			AM(30%):+19.1dBs
				CD:+36.2dBs
			CEK1136
			>
			10A	BACK UP
				GND
				ACC
				B.REM	C
	VDD REGULATOR	DEH-3450/XN/ES		RL-
				FL-
				RL+
	DEH-2450F/XN/ES			FL+
				RR-
				FR-
	VCC REGULATOR			RR+
				FR+
		SYS+B REGULATOR
	BACK UP SENSE
	ACC SENSE
		DEH-3450/XN/ES
					D
	B.REMOTE
				A 13
5	6	7		8

	1	2		3	4
DEH-3450,2450F
b				1
-		ELECTRONICVOLU
A-a A					SYSTEMCO
A
					CSS1023194MHz.4
B
			R791	0R0
C
		162
		162
	272	272
		183
		183
D					ANTENNA JACK
	AM(30%):-30dBs		FM/AMTUNERUNIT
	FM(100%):-5dBs.19
14	A-a			3	4
	1	2

5
2	3	4
		DSENS

104

393

6		7	8
			DEH-3450,2450F
5	6	7	-b
			A
			A-a
			A	A
				B

	EJECT	B PANEL UNIT	circuit diagrams, their resistance values or	in codes:	*Capacitors	Code Practical value	103 0.01uF	101/10 100uF/10V
	CKEYBOARDUNIT		capacitorsandresistorsFor in the	arevaluescapacitanceexpressed	*ResistorsEx.	PracticalCodevalue	ohms12k123	ohms10k103
DCONTROLUNIT
			A-a AB						15
5	6	7						8

C

D

A

B

C

D

1		2		3		4

DEH-3450,2450F

A-b
A-a	PRE OUT	RR	RL	FM(100%):+29.6dBs AM(30%):+19.1dBs CD:+36.2dBs

16 A-b

1

UNIT	CD:+9.4dBs
TUNER AMP				600 H
A			MUTE
				H-2450F/XN/ES
				H-3450/XN/ES
				POWER AMP
	FM(100%):+3.6dBs	AM(30%):-6.9dBs	CD:+10.2dBs
	C VOLUME			TEM CONTROLLER
				1
	2		3	4

5

6

7

8

DEH-3450,2450F

FM(100%):+29.6dBs AM(30%):+19.1dBs CD:+36.2dBs

CEK1136

>

10A

GND

ACC

B.REM

RL-

FL-

RL+

FL+

RR-

FR-

RR+

FR+

-b

a-A A

BACKUP

REGULATOR

DEH-2450F/XN/

DEH-3450/XN/ES

2450F/XN/ES-DEH

REGULATORVCC

SYS+B

SENSEACC

DEH-3450/XN/ES

B.REMOTE

DEH-3450/XN/E

VDD REGULATOR

BACK UP SENSE

2

3

4

5

6

7

A-b

17

5

6

7

8

A

B

C

D

1		2		3		4

DEH-3450,2450F

3.3 KEYBOARD UNIT

REMOTE CON

A

KEY CONTROL AND

DISPLAY DRIVER

B

5

LCD

CLOC

←

C

←

	DEH-3450/XN/ES	DEH-2450F/XN/ES
IC1902	RS-140	Not used
LCD	CAW1707	CAW1724
R1900	Not used	473
R1905	121	Not used
R1965	2R2	Not used
C1901	100/6R3	Not used

D

18 C

1		2		3		4

	5	6		7	8
					DEH-3450,2450F
CONTROL SENSOR				C KEYBOARD UNIT		A
				VOLUME
					CSD1077
	S1900-1906,1908-1916 : CSG1107
		SOURCE			B
	EQ				CN1951
						B
5	3	2	1
	SML-310PT
CLOCK	CSG1111	6	4
	LOCAL
←	←	BAND	LOUD	9159	9159
				-	-
				NSSW440	NSSW440	C
			BSM
←	←	AUDIO	CSG1111
			SML-310PT
						D
					C 19
	5	6		7	8