PIONEER ELECTRONIC CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC.
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER ELECTRONIC CORPORATION 1999
K-ZZY. FEB. 1999 Printed in Japan
ORDER NO.
CRT2316
UNIVERSAL MULTI-CD SYSTEM
CDX-FM657
X1N/UC
Service
Manual
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
3. SCHEMATIC DIAGRAM ...........................................14
4. PCB CONNECTION DIAGRAM ................................26
5. ELECTRICAL PARTS LIST ........................................34
6. ADJUSTMENT..........................................................38
7. GENERAL INFORMATION .......................................45
7.1 PARTS .................................................................45
7.1.1 IC................................................................45
7.1.2 DISPLAY ....................................................51
7.2 DIAGNOSIS ........................................................52
7.2.1 DISASSEMBLY .........................................52
7.2.2 TEST MODE ..............................................54
7.3 BLOCK DIAGRAM ..............................................60
8. OPERATIONS AND SPECIFICATIONS.....................62
- See the separate manual CX-892(CRT2356) for the CD mechanism description, disassembly and circuit
description.
- The CD mechanism employed in this model is one of C7 series.
CDX-FM657/X1N/UC
CDX-FM657 X1N/EW
CDX-FM657 X1N/ES
2
CDX-FM657
- CD Player Service Precautions
1. For pickup unit(CXX1285) handling, please refer
to"Disassembly"(See page 52). During replacement,
handling precautions shall be taken to prevent an
electrostatic discharge(protection by a short pin).
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 pick-
up unit (See page 39).
4. Since these screws protects the mechanism during
transport, be sure to affix it when it is transported for
repair, etc.
A transport screw has been attached to the
set in order to protect it during transporta-
tion. After removing the transport screw,
cover the hole with the supplied seal.
Be sure to remove the transport screw
before mounting the set. The removed
transport screw should be retained in the
accessory bag for use the next time the set
is transported.
Seal
After removing the trans-
port screw, cover the hole
with the supplied seal.
Transport screw
Attach to the original position before
transporting the set.
3
CDX-FM657
1. SAFETY INFORMATION
1.1 CDX-FM657/X1N/UC
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
1.2 CDX-FM657/X1N/EW
1. Safety Precautions for those who Service this Unit.
· Follow the adjustment steps (see pages 38 through 44)in the service manual when servicing this unit. When check-
ing or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.
Caution:
1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.
2. A "CLASS 1 LASER PRODUCT" label is affixed to the
rear of the player.
3. The triangular label is attached to the mechanism
unit frame.
4. Specifications of Laser Diode
Specifications of laser radiation fields to which human access is possible during service.
Wavelength
=
800 nanometers
4
CDX-FM657
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
26
33
27
28
17
24
35
4
8
6
11
10
7
9
32
31
25
18
16
15
21
22
20
13
16
2
14
19
23
12
3
5
1
29
30
29
36
30
42
43
40
41
45
44
37
34
50
46
48
47
49
51
5
CDX-FM657
Part No.
Mark No. Description
CDX-FM657/X1N/UC
CDX-FM657/X1N/EW
CDX-FM657/X1N/ES
1 Accessory Assy
CEA2494
CEA2493
CEA2495
2 Spring
CBH-865
Not used
CBH-865
3 Cord
CDE4289
CDE4289
CDE4289
4 Cord
CDE5812
CDE5813
CDE5812
5 Cord
CDE5814
CDE5814
CDE5814
6 Screw Assy
CEA1962
CEA1962
CEA1962
7 Screw
CBA1295
CBA1295
CBA1295
*
8 Polyethylene Sheet
CNM5158
CNM5158
CNM5158
9 Screw
HMB60P500FMC
HMB60P500FMC
HMB60P500FMC
10 Screw
HMF40P080FZK
HMF40P080FZK
HMF40P080FZK
11 Nut
NF60FMC
NF60FMC
NF60FMC
12 Screw Assy
CEA1965
Not used
CEA1965
*
13 Polyethylene Bag
CEG-127
Not used
CEG-127
14 Screw
IMS30P050FZK
Not used
IMS30P050FZK
15 Clamper
CEF1010
CEF1010
CEF1010
*
16 Polyethylene Bag
CEG-158
CEG-158
CEG-158
17 Polyethylene Bag
CEG1185
*E36-622
*E36-622
18 Battery
CEX1030
CEX1030
CEX1030
19 Bracket
CNC8061
Not used
CNC8061
20 Cushion
CNM3182
Not used
CNM3182
21 Fastener(Soft)
CNM3872
CNM3872
CNM3872
22 Fastener(Rough)
CNM4041
CNM4041
CNM4041
23 Panel
CNS5428
Not used
CNS5428
*
24 Polyethylene Bag
CEG1099
CEG1099
CEG1099
25 Polyethylene Bag
CEG1185
CEG1042
CEG1042
26 Carton
CHG3759
CHG3725
CHG3726
27 Sub Carton
CHG3763
CHG3733
CHG3734
28 Contain Box
CHL3759
CHL3725
CHL3726
29 Protector
CHP2133
CHP2133
CHP2133
30 Protector
CHP2135
CHP2135
CHP2135
31 Seal
CNM5599
CNM5599
CNM5599
32-1 Installation Manual
CRD2944
CRD2882
CRD2884
32-2 Owner's Manual
CRD2943
CRD2880
CRD2883
32-3 Owner's Manual
Not used
CRD2881
Not used
* 32-4 Warranty Card
Not used
CRY1087
Not used
* 32-5 Caution Card
CRP1205
CRP1205
CRP1205
33 Antenna Select Assy
CWM6445
CWM6445
CWM6445
34 Display Assy
CXB3248
CXB3247
CXB3248
35 Remote Control Assy
CXB3261
CXB3261
CXB3261
36 Magazine Assy
CXB4027
CXB4027
CXB4027
- 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.