Pioneer DEH-340, DEH-3400, DEH-34 Service Manual

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

ORDER NO.

CRT2759

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-340 XN/UC

DEH-340/XN/UC

CONTENTS

1. SAFETY INFORMATION ............................................3

2. EXPLODED VIEWS AND PARTS LIST.......................4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM...12

4. PCB CONNECTION DIAGRAM ................................26

5. ELECTRICAL PARTS LIST ........................................34

6. ADJUSTMENT..........................................................41

7. GENERAL INFORMATION .......................................45

7.1 DIAGNOSIS ........................................................45

7.1.1 DISASSEMBLY .........................................45

7.1.2 CONNECTOR FUNCTION DESCRIPTION.......48

7.2 PARTS .................................................................49

7.2.1 IC................................................................49

7.2.2 DISPLAY....................................................58

7.3 OPERATIONAL FLOW CHART...........................59

7.4 CLEANING ..........................................................60

8. OPERATIONS AND SPECIFICATIONS.....................61

- 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

DEH-3400 XN/UC
DEH-34 XN/UC

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

2

DEH-340,3400,34

- CD Player Service Precautions

1. For pickup unit(CXX1480) handling, please refer
to"Disassembly"(see page 45).
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 42).

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.

[ 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:

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.

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.

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.

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.

3

DEH-340,3400,34

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.

W

ARNING

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

1. SAFETY INFORMATION

4

DEH-340,3400,34

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

18

19

20

21

22

16

15

12

14

13

2

17

1

4

10

3

11

7

8

5

9

6

5

DEH-340,3400,34

Part No.

Mark No. Symbol and Description DEH-340/XN/UC DEH-3400/XN/UC DEH-34/XN/UC

1-1 Owner's Manual CRD3497 CRD3498 CRD3498

1-2 Installation Manual CRD3501 CRD3502 CRD3502
* 1-3 Card Not used ARY1048 ARY1048
* 1-4 Warranty Card CRY1070 Not used Not used

13 Carton CHG4550 CHG4547 CHG4549

14 Contain Box CHL4550 CHL4547 CHL4549
17 Case Assy CXB3520 CXB3520 Not used

(2) CONTRAST TABLE
DEH-340/XN/UC, DEH-3400/XN/UC and DEH-34/XN/UC are constructed the same except for the follow­ing:

- Owner's Manual, Installation Manual

Model Part No. Language

DEH-340/XN/UC CRD3497 English, French, Spanish

CRD3501
DEH-3400/XN/UC CRD3498 English, French, Spanish
DEH-34/XN/UC CRD3502

1-1 Owner’s Manual See Contrast table(2)

1-2 Installation Manual See Contrast table(2)
* 1-3 Card See Contrast table(2)
* 1-4 Warranty Card See Contrast table(2)

1-5 Polyethylene Bag CEG1116

2 Cord Assy CDE6468
3 Spring CBH1650
4 Screw Assy CEA2796
5 Screw CBA1002

* 6 Polyethylene Bag CEG-127

7 Screw CRZ50P090FMC
8 Screw TRZ50P080FMC

* 9 Polyethylene Bag CEG-158

10 Handle CNC5395
11 Bush CNV3930

12 Polyethylene Bag CEG1173
13 Carton

See Contrast table(2)

14 Contain Box See Contrast table(2)
15 Protector CHP2251
16 Protector CHP2252

17 Case Assy

See Contrast table(2)

18 Screw BPZ20P060FZK
19 Remote Control Unit CXB8743

* 20 Battery CEX1065

21 Accessory Assy CEA2773

22 Earth Plate CNC9450

Mark No. Description Part No. Mark No. Description Part No.

(1) PACKING SECTION PARTS LIST

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.)

6

DEH-340,3400,34

A

B

C

2.2 EXTERIOR(DEH-340/XN/UC)

DEH-340,3400,34

1 Screw BMZ30P040FZK
2 Screw BMZ30P100FMC
3 Screw BSZ26P060FMC
4 Screw BSZ30P060FMC
5 Cord Assy CDE6468

6 •••••
7 Cable CDE6610
8 Fuse(10A) CEK1136
9 Case CNB2686

10 Holder CNC5704

11 Holder CNC8659
12 Cushion CNM4870
13 Insulator CNM6948
14 Tuner Amp Unit CWM7960
15 Screw ASZ26P060FMC

16 Screw BPZ26P080FMC
17 Screw BSZ26P160FMC
18 Pin Jack(CN351) CKB1051
19 Terminal(CN404) CKF1059
20 Plug(CN901) CKM1330

21 Plug(CN750) CKS3537
22 Connector(CN501) CKS3835
23 Antenna Jack(CN402) CKX1056
24 Holder CNC8615
25 Holder CNC9618

26 Insulator CNM6949
27 Heat Sink CNR1614
28 FM/AM Tuner Unit CWE1563
29 Holder CNC8815
30 Chassis Unit CXB6100

31 Button(EJECT) CAC6839
32 Screw(M2x2) CBA1176
33 Washer CBF1038
34 Washer CBF1039
35 Spring CBH2428

36 Spring CBH2429
37 Spring CBL1512
38 Holder CNC9096
39 Cover CNM6854
40 Panel CNS6278

41 Pin CNV6486
42 Lighting Conductor CNV6487
43 Gear CNV6507
44 Arm CNV6508
45 Panel Unit CWM7375

46 Socket(CN1950) CKS3550
47 Connector(CN1951) CKS4206
48 Damper Unit CXB5070
49 Holder Unit CXB6356
50 Holder Unit CXB6357

51 Clutch Unit CXB6358
52 Screw IMS20P045FZK
53 Detach Grille Assy CXB8403
54 Screw BPZ20P100FZK
55 Button(1-6) CAC7225

56 Button(OPEN) CAC7227
57 Button(LOUD) CAC7229
58 Button(EQ) CAC7231
59 Button(CLOCK) CAC7233
60 Button(AUDIO) CAC7234

61 Button(LOCAL) CAC7235
62 Button(BSM) CAC7236
63 Knob CAC7528
64 Spring CBH2430
65 Spring CBH2431

66 Spring CBH2630
67 Cover CNS6740
68 Holder CNV6505
69 Holder CNV6506
70 Keyboard Unit CWM7961

71 LCD CAW1699
72 Connector(CN1901) CKS4524
73 Holder CNC9757
74 Sheet CNM7647
75 Connector CNV6440

76 Lighting Conductor CNV7244
77 Sub Grille Assy CXB8420
78

CD Mechanism Module(S9ANA)CXK5501

79 Screw ISS26P055FUC
80 Transistor(Q510,910) 2SD2396

81 IC(IC361) PAL007A
82 Panel CNS6935
83 Remote Control Unit CXB8743
84 Cover CNS7068

- EXTERIOR SECTION PARTS LIST

Mark No. Description Part No.

Mark No. Description Part No.

7

8

DEH-340,3400,34

A

B

C

2.3 EXTERIOR(DEH-3400/XN/UC, DEH-34/XN/UC)

9

DEH-340,3400,34

1 Screw BMZ30P040FZK
2 Screw BMZ30P100FMC
3 Screw BSZ26P060FMC
4 Screw BSZ30P060FMC
5 Cord Assy CDE6468

6 •••••
7 Cable CDE6610
8 Fuse(10A) CEK1136
9 Case CNB2686

10 Holder CNC5704

11 Holder CNC8659
12 Cushion CNM4870
13 Insulator CNM6948
14 Tuner Amp Unit CWM7974
15 Screw ASZ26P060FMC

16 Screw BPZ26P080FMC
17 Screw BSZ26P160FMC
18 Pin Jack(CN351) CKB1028
19 Terminal(CN404) CKF1059
20 Plug(CN901) CKM1330

21 Plug(CN750) CKS3537
22 Connector(CN501) CKS3835
23 Antenna Jack(CN402) CKX1056
24 Holder CNC8615
25 Holder CNC9619

26 Insulator CNM6949
27 Heat Sink CNR1614
28 FM/AM Tuner Unit CWE1563
29 Holder CNC8815
30 Chassis Unit CXB6100

31 Button(EJECT) CAC6839
32 Screw(M2x2) CBA1176
33 Washer CBF1038
34 Washer CBF1039
35 Spring CBH2428

36 Spring CBH2429
37 Spring CBL1512
38 Holder CNC9096
39 Cover CNM6854
40 Panel CNS6278

41 Pin CNV6486
42 Lighting Conductor CNV6487
43 Gear CNV6507
44 Arm CNV6508
45 Panel Unit CWM7375

46 Socket(CN1950) CKS3550
47 Connector(CN1951) CKS4206
48 Damper Unit CXB5070
49 Holder Unit CXB6356
50 Holder Unit CXB6357

51 Clutch Unit CXB6358
52 Screw IMS20P045FZK
53 Detach Grille Assy

See Contrast table(2)

54 Screw BPZ20P100FZK
55 Button(1-6) CAC7225

56 Button(OPEN) CAC7227
57 Button(LOUD) CAC7229
58 Button(EQ) CAC7231
59 Button(CLOCK) CAC7233
60 Button(AUDIO) CAC7234

61 Button(LOCAL) CAC7235
62 Button(BSM) CAC7236
63 Knob CAC7527
64 Spring CBH2430
65 Spring CBH2431

66 Spring CBH2630
67 Cover CNS6740
68 Holder CNV6505
69 Holder CNV6506
70 Keyboard Unit

See Contrast table(2)

71 LCD CAW1707
72 Connector(CN1901) CKS4524
73 Holder CNC9757
74 Sheet CNM7647
75 Connector CNV6440

76 Lighting Conductor CNV7244
77 Sub Grille Assy

See Contrast table(2)

78 CD Mechanism Module(S9ANA)CXK5501
79 Screw ISS26P055FUC
80 Transistor(Q510,910) 2SD2396

81 IC(IC361) PAL007A
82 Panel CNS7070
83 Remote Control Unit CXB8743
84 Cover CNS7068

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

Part No.

Mark No. Symbol and Description DEH-3400/XN/UC DEH-34/XN/UC

53 Detach Grille Assy CXB8400 CXB8402

70 Keyboard Unit CWM7979 CWM7980

77 Sub Grille Assy CXB8417 CXB8419

(2) CONTRAST TABLE
DEH-3400/XN/UC and DEH-34/XN/EW are constructed the same except for the following:

10

DEH-340,3400,34

D

(GEM1035)

(UD321BR)

2.4 CD MECHANISM MODULE

11

DEH-340,3400,34

Mark No. Description Part No. Mark No. Description Part No.

1 Control Unit CWX2481
2 Connector(CN701) CKS1959
3 Connector(CN101) CKS3486
4 Screw BMZ20P025FMC
5 Screw BSZ20P040FMC

6 Screw(M2x4) CBA1362
7 Screw(M2x3) CBA1527
8 Screw CBA1545
9 Washer CBF1037

10 Washer CBF1038

11 Washer CBF1039
12 Washer CBF1060
13 Spring CBH2378
14 Spring CBH2379
15 Spring CBH2514

16 Spring CBH2533
17 Spring CBH2382
18 Spring CBH2383
19 Spring CBH2384
20 Spring CBH2527

21 Spring CBH2386
22 Spring CBH2537
23 Spring CBH2390
24 Spring CBH2391
25 Spring CBH2523

26 Spring CBH2426
27 Spring CBH2444
28 Spring CBL1561
29 Spring CBL1553
30 Shaft CLA3845

31 Roller CLA3910
32 Frame CNC9654
33 Lever CNC9664
34 Lever CNC8949
35 Arm CNC9661

36 Arm CNC9016
37 Arm CNC9017
38 Bracket CNC9123
39 Frame CNC9656
40 Belt CNT1086

41 Gear CNV6886
42 Gear CNV6316
43 Gear CNV6317
44 Gear CNV6318
45 Gear CNV6319

46 Gear CNV6320
47 Arm CNV6322
48 Arm CNV6323
49 Arm CNV6324
50 Arm CNV6888

51 Arm CNV6889
52 Guide CNV6327
53 Arm CNV6924
54 Guide CNV6921
55 Rack CNV6923

56 Clamper CNV6331
57 Arm CNV6332
58 Guide CNV6333
59 Cover CNV6334
60 Arm CNV6335

61 Guide CNV6336
62 Roller CNV6338
63 Damper CNV6339
64 Damper CNV6340
65 Guide CNV6925

66 Chassis Unit CXB7980

* 67 Arm Unit CXB7983

68 Arm Unit CXB7984
69 Arm Unit CXB7985
70 Motor Unit(M2) CXB5903

71 Screw Unit CXB5904
72 Gear Unit CXB8076
73 Bracket Unit CXB7982
74 Motor Unit(M1) CXB6007
75 Arm Unit CXB8504

76 Screw(M2x5) EBA1028
77 Screw JFZ20P020FMC
78 Screw JGZ17P020FZK
79 Washer YE15FUC
80 Washer YE20FUC

81 Pickup Unit(Service)(P9) CXX1480
82 Screw IMS26P030FMC
83 Guide CNV6922
84 Roller CNV6887
85 Spring CBH2509

86 Spring CBH2512
87 Spring CBH2536
88 Collar CNV6906

- CD MECHANISM MODULE SECTION PARTS LIST

12

DEH-340,3400,34

A

1

234

B

C

D

12

34

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

VDCONT

Q510

Q511

B.U

ANTENNA

CN402

LOCL

Q410

VCC

VDD

PCE2

PCK

PCE1

SL

SD

PDIO

S
S

T
T
T
T

L

I

I

6

76

14
13
48
12

57

2

3

CN501

CDL

SYSTEM

CONTROLL

IC 610(2/

PE5262B

CD5VON

34

23

79
32

21

35

VDCONT

HOME

DSCSNS

LOEJ

CONT

LOEJ

CONT

T

11

PDIO

TUNER AMP UNIT

VD

CD5VON

IC 3

EEPROM

FM/AM TUNER UNIT

28

27

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51

CF52 CF53

IC1

MIXER, IF AMP, DET.

6

21
18

LDET

COMP

222510 14 12 15 16 8 13 2 3 4

CF202

VDD
VCC

DI/DO

CE2CKCE1

SDBWSLFMSD

NL1

NL2

IC 2 FM MPX

AMANT

FMANT

ATT

ATT

AMRF

FMRF

IMG ADJ

RF ADJ

X901

10.25MHz

ANT ADJ

LOCL

23

LOCH

AMDET

MPXREF 41kHz

AM 2ND IF

450kHz

19

CREQ

11

DGND

1

STIND

L ch

5

R ch

924

NC

FMLOCL

20177

NCNCWC

26

RFGND

CN701

Q101

M

LASER
DIODE

MONITOR

DIODE

CLAMP
SENSE

DISC

SENSE

FOCUS ACT.

SPINDLE

MOTOR

M

CARRIAGE

MOTOR

LOAD/

TRACKING ACT.

LD-

MD

FO+
TO+

15

5

1

4

PICKUP UNIT
(SERVICE)(P9)

HOLOGRAM

UNIT

IC 401

BA5996FM

IC 201

TC9495F2

IC 701

BA05SFP

+5V REGULATOR

SERVO

CONTROL,

DSP,

LPF, DAC

CD

DRIVER

17

DSCSNS

2

VD

VD

VDD

11

CONT

10

LOEJ

14

L-OUT

1

CD5VON

CN101

TOP

FOP

16

SOP

15

SOM

17

LCOP

18

LCOM

22

1

2

LOEJ

78

85

L_OUT

79

9

MUTE

12

FOP

TD/FD

AC,BD

F,E

SD/MD

38

RFI

43

FEI

4

14

TOP

S901

HOME

12EJ

SENSE

8EJ

SENSE

HOME

16

LD+

14

VDD

9

LDO

8

MDI

IC 101

TA2153FN

RFRPIN

FEO

TEO

24

16

14

46

TEI

RF-AMP

CONTROL UNIT

17

2

11

10

14

1

16

A

D

PCE1
PCK
PCE2

DEH-340,3400,34

5

6

7

8

A

B

C

D

5

6

7

8

13

KYDT
DPDT

IC 1900

PD6340A

5
3

8

14
11

10

KEY MATRIX

SD
SL

TUNPCE
TUNPCK
TUNPCE2
TUNPDO

LOCL

IN2_L

IN3_L

6

76

14
13
48
12

57

2

3

SYSTEM

CONTROLLER

IC 610 (1/2)

PE5262B

VST
VCK
VDT

B.U

VDD

Q913

B.U

BACKUP

FL­FL+
RL­RL+

ACC

2
1

10
12

9

11

3

ELECTRONIC VOLUME

IC 301

PML003AM

SYSTEM

CONTROLLER

IC 610(2/2)

PE5262B

ASENS

64

BSENS

63

TELIN

38

SYSPW

42

MUTE

44

KYDT

8

DPDT

9

RESET

60

SWVDD

41

Frontout_L

10

Rearout_L

11

POWER AMP

IC 361

PAL007A

14
12

22 4

5

3

21

23

FL

MUTE STBY

RL

B.U

bsens

asens

Q920

Q361 MUTE

Q921

KEYBOARD UNIT

CN1901CN750

LCD

20
18

Q750

RESET

IC 603

S-80834ANY

VDD

12

SYSPW

6

B.REM

FUSE

10A

N

TUNPDI

11

PDIO

VST/ VCK/ VDT

VDD

VDD

VLCD

56
10

CN901

Q 351

CN351

REAR L CH

Q359

BACK UP

FL­FL+

RL­RL+

B.REM

ACC

GND

C

PCE1
PCK
PCE2

ANTIN

52

KYDT
DPDT

SW5V

KEY CONTROL

LCD DRIVER

2

1

10
12

9

11

3

6

SYSPW

Q910

Q911

B.U

VCC

Q912

RESET

IC 603

S-80834ANY

12

VCC REGULATOR

VDD REGULATOR

14
11

10

CN1950

8

10

5

CN1951

13 13

88

S1950
EJECT

EJECTS

53

12 12

94
76

S1922 VOLUME

ROT0
ROT1

ROT0
ROT1

ROT0
ROT1

37
36

Q 341

FRONT L CH

IC1902

RS-140

4

1

REM

17

REMOTE CONTROL

SENSOR

OPT IN

PANEL UNIT

B

DEH-340/XN/UC

25

S750

DSENS

Q751

B.U

Q753

B.U

Q752

99

66

55

77

44 310

CSENS

ILB+

FILM+

FILM-

EJECT

µGND

CSENS

KYDT
DPDT

IL+B

SW+5V

94

ILLUMINATION

ILLUMINATION

ILMPW

40

FLPILM

20

DSENS

64

CSENS

80

14

DEH-340,3400,34

A

1

234

B

C

D

12

34

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-b

A-aA-a

A-b A-b

A-b A-b

A-a A-a

Large size

SCH diagram

Guide page

Detailed page

A

FM(100%):-19.5dBs

AM(30%):-30dBs

D

CONTROL UNIT

FM/AM TUNER UNIT

A

C

KEYBOARD UNIT

B

PANEL UNIT

183

183

162

162

272

272

104 393

CSS1023 4.194MHz

0R0

R791

DSENS

EJECT

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

ANTENNA

JACK

SYST

ELECTRONIC

A-a

B

15

DEH-340,3400,34

5

6

7

8

A

B

C

D

5

6

7

8

A

FM(100%):+3.6dBs

AM(30%):-6.9dBs

CD:+10.2dBs

CD:+9.4dBs

FM(100%):+29.6dBs

AM(30%):+19.1dBs

CD:+36.2dBs

A

TUNER AMP UNIT

RR+

RR-

FR+

FR-

FL+

FL-

RL+

RL-

ACC

GND

B.REM

BACK UP

CEK1136

>

10A

RR

FR

FL

RL

PRE OUT

600µH

MUTE

POWER AMP

VOLUME

VDD REGULATOR

SYS+B REGULATOR

BACK UP SENSE

ACC SENSE

VCC REGULATOR

DEH-340/XN/UC

A-b

16

DEH-340,3400,34

A

1

234

B

C

D

12

34

A-a

A-a

A-b

FM(100%):-19.5dBs

AM(30%):-30dBs

FM/AM TUNER UNIT

183

183

162

162

272

272

3

CSS1023 4.194MHz

0R0

R791

ANTENNA

JACK

SYSTEM CO

ELECTRONIC VOLU

1

17

DEH-340,3400,34

5

6

7

8

A

B

C

D

5

6

7

8

A-a

A-b

D

CONTROL UNIT

A-

C

KEYBOARD UNIT

B

PANEL UNIT

104 393

DSENS

EJECT

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

6

5

2

3

4

7

A-a

B

18

DEH-340,3400,34

A

1

234

B

C

D

12

34

A-a

A-b

A-b

FM(100%):+3.6dBs

AM(30%):-6.9dBs

CD:+10.2dBs

CD:+9.4dBs

FM(100%):+29.6dBs

AM(30%):+19.1dBs

CD:+36.2dBs

A

TUNER AMP UNIT

RR

FR

FL

RL

PRE OUT

600µH

MUTE

POWER AMP

DEH-340/XN/UC

1

19

DEH-340,3400,34

5

6

7

8

A

B

C

D

5

6

7

8

A-b

A-a

A-b

FM(100%):+29.6dBs

AM(30%):+19.1dBs

CD:+36.2dBs

RR+

RR-

FR+

FR-

FL+

FL-

RL+

RL-

ACC

GND

B.REM

BACK UP

CEK1136

>

10A

VDD REGULATOR

SYS+B REGULATOR

BACK UP SENSE

ACC SENSE

VCC REGULATOR

6

5

2

3

4

7

20

DEH-340,3400,34

A

1

234

B

C

D

12

34

3.3 KEYBOARD UNIT

CLOC

←

←

LCD

5

DEH-340/XN/UC
SML-310PT
CSG1107
CSG1107
CSG1107
CAW1699

D1919,1920
S1900
S1901-1906
S1908-1916
LCD

DEH-3400/XN/UC
SML-310PT
CSG1107
CSG1107
CSG1107
CAW1707

DEH-34/XN/UC
SML-310DT
CSG1133
CSG1117
CSG1117
CAW1707

KEY CONTROL AND
DISPLAY DRIVER

REMOTE CON

C