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-ZZS. NOV. 2002 Printed in Japan
ORDER NO.
CRT2978
HIGH POWER CASSETTE PLAYER WITH FM/MW/LW TUNER
KEH-3031
XM/EE
Service
Manual
3
6
2
5
1
4
B
BAND
BAND
BASS/TREBLE BOOSTER
BASS/TREBLE BOOSTER
KEH-3031
KEH-3031
KEH-3031/XM/EE
For details, refer to "Important symbols for good services".
CONTENTS
SAFETY INFORMATION ............................................2
1. SPECIFICATIONS........................................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
2.1 PACKING ...............................................................4
2.2 EXTERIOR .............................................................6
2.5 CASSETTE MECHANISM ASSY..........................8
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10
3.1 BLOCK DIAGRAM ..............................................10
3.2 OVERALL CONNECTION DIAGRAM.................12
3.3 KEYBOARD UNIT ...............................................14
3.4 CASSETTE MECHANISM ASSY........................16
4. PCB CONNECTION DIAGRAM ................................18
4.1 TUNER AMP UNIT .............................................18
4.2 KEYBOARD UNIT ..............................................22
4.3 CASSETTE MECHANISM ASSY........................24
5. ELECTRICAL PARTS LIST ........................................25
6. ADJUSTMENT..........................................................27
7. GENERAL INFORMATION .......................................28
7.1 DIAGNOSIS ........................................................28
7.1.1 DISASSEMBLY .........................................28
7.1.2 CONNECTOR FUNCTION DESCRIPTION ...29
7.2 PARTS .................................................................30
7.2.1 IC................................................................30
7.2.2 DISPLAY ....................................................35
7.3 OPERATIONAL FLOW CHART ...........................36
7.4 CLEANING ..........................................................37
8. OPERATIONS ...........................................................38
2
1
234
12
34
F
E
D
C
B
A
KEH-3031/XM/EE
[ 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.
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
5
6
7
8
F
E
D
C
B
A
5
6
7
8
KEH-3031/XM/EE
1. SPECIFICATIONS
Backup current....................Less than 3 mA
4.76 cm/sec. (+0.14cm/sec., -0.05cm/sec.)
4
1
234
12
34
F
E
D
C
B
A
KEH-3031/XM/EE
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
16
3
2
4
18
19
17
1
7
5
12
13
11
10
15
14
8
6
9
5
5
6
7
8
F
E
D
C
B
A
5
6
7
8
KEH-3031/XM/EE
*
1-1 Warranty Card
CRY1157
1-2 Owner's Manual
CZR2962
1-3 Installation Manual
CZR2963
2 Case Assy
CXB3520
3 Cord Assy
CZD2976
4 Polyethylene Bag
CZE2903
5 Accessory Assy
CZE2954
6 Spring
CBH1650
7 Handle
CNC5395
8 Bush
CNV3930
*
9 Polyethylene Bag
CZE2908
10 Screw Assy
CZE2952
11 Screw
CBA1002
12 Fixing Screw(M2x4)
CBA1488
*
13 Polyethylene Bag
CEG-127
14 Screw
CRZ50P080FMC
15 Screw
TRZ50P080FMC
16 Protector
CZH5592
17 Protector
CZH5591
18 Carton
CZH6607
19 Contain Box
CZH6608
Mark No. Description
Part No.
Mark No. Description
Part No.
- 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.)
- Owner's Manual, Installation Manual
Model
Part No.
Language
KEH-3031/XM/EE
CZR2962
English, Russian
CZR2963
English, Russian