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
Service
Manual
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 con-
nector 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.
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
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 follow-
ing:
- 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.)