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ORDER NO.
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. 501 Orchard Road, #10-00 Wheelock Place, Singapore 238880
PIONEER ELECTRONIC CORPORATION 1998
KUC
AC120V
­­­­­­­­­­
RL
AC110­120V/220­240V
With the voltage selector
WY
AC220­240V
­­­­­­­­­­
COMPACT DISC PLAYER
RRV2027
T­DZY SEPT. 1998 Printed in Japan
CDJ-100S
1. SAFETY INFORMATION .................................... 2
2. EXPLODED VIEWS AND PARTS LIST ............. 4
3. SCHEMATIC DIAGRAM ................................... 10
4. PCB CONNECTION DIAGRAM ....................... 24
5. PCB PARTS LIST ............................................. 30
6. ADJUSTMENT .................................................. 33
CONTENTS
7. GENERAL INFORMATION .............................. 39
7.1 PARTS ....................................................... 39
7.1.1 IC ....................................................... 39
7.1.2 DISPLAY ........................................... 41
7.2 DIAGNOSIS ................................................ 42
7.2.1 ERROR DISPLAY ............................. 42
7.2.2 DISASSEMBLY ................................. 42
7.3 BLOCK DIAGRAM ...................................... 46
8. PANEL FACILITIES AND SPECIFICATIONS
....................................................... 47
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Power Requirement
Type
Model
CDJ-100S
The voltage can be converted by the following method.

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CDJ-100S
2
1. SAFETY INFORMATION
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained by using replacement components rated for
voltage, wattage , etc.
Replacement parts which have
these special safety
characteristics are identified in
this Service Manual.
Electrical components having such features are
identified by marking with a
on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in
the parts list in this Service Manual, may create shock,
fire, or other hazards.
Product Safety is continuously under review and
new instructions are issued from time to time. For
the latest information, always consult the current
PIONEER Service Manual. A subscription to, or
ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
(FOR USA MODEL ONLY)
Also test with plug
reversed
(Using AC adapter
plug as required)
Device
under
test
Test all exposed
metal surfaces
Earth ground
Leakage
current
tester
Reading should
not be above
0.5 mA
AC Leakage Test
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible
(fusible de type rapide) et/ou
(fusible de type lent) sur CCI indiquent que les
pièces de remplacement doivent avoir la même désignation.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols
(fast operating fuse) and/or
(slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.
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 Cod e Section 25249.6 ­ Proposition 65

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CDJ-100S
3
Additional Laser Caution
1. Laser Interlock Mechanism
The position of the switch (S1) for detecting loading
completion is detected by the system microprocessor, and
the design prevents laser diode oscillation when the switch
is not in LPS1 terminal side (when the mechanism is not
clamped and LPS1 signal is high level.) Thus, the interlock
will no longer function if the switch is deliberatery set to
LPS1 terminal side. ( if LPS1 signal is low level ).
In the test mode
the interlock mechanism will not function.
Laser diode oscillation will continue, if pin 33 of CXA1782CQ
(IC101) on the MOTHER BOARD ASSY is connected to
GND, or pin 43 of IC701 (LDON) is connected to low level
(ON), or else the terminals of Q101 are shorted to each
other (fault condition).
2. When the cover is opened, close viewing of the objective
lens with the naked eye will cause exposure to a Class 1
laser beam.
: Refer to page 34.
IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 5 mw
WAVELENGTH: 780 ­ 785 nm
LABEL CHECK (for WY type)

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CDJ-100S
4
9
1
10
2
12
11
5
3
4
6
8 (KUC type Only)
7
13 (RL type Only)
4
Packing Case
DHG1852
DHG1851
DHG1850
7
Operating Instructions (English)
DRB1232
Not used
Not used
7
Operating Instructions
Not used
DRB1229
Not used
(English/Spanish/Chinese)
7
Operating Instructions
Not used
Not used
DRB1227
(English/French/German/Italian/
Dutch/Spanish)
NSP
8
Limited Warranty
DRY1177
Not used
Not used
NSP
13
Caution Card 220V
Not used
ARR7003
Not used
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
(1) PACKING PARTS LIST
1
Pad (A)
DHA1411
2
Pad (B)
DHA1412
3
Pad (C)
DHA1413
4
Packing Case
See Contrast table (2)
5
Packing Sheet
Z23­026
(550
× 550 × 0.5)
6
Audio Cable (L= 1.5m)
VDE1033
7
Operating Instructions
See Contrast table (2)
NSP
8
Limited Warranty
See Contrast table (2)
9
Polyethylene Bag
Z21­038
(0.03
× 230 × 340)
10
Polyethylene Bag
DHL1106
NSP
11
Silica Gel
AEN7001
NSP
12
Caution SG
DRM1199
NSP
13
Caution Card 220V
See Contrast table (2)
NOTES :
Parts marked by " NSP " are generally unavailable because they are not in our Master Spare Parts List.
The
mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Screw adjacent to
mark on the product are used for disassembly.
Mark No.
Description
Part No.
Part No.
Remarks
Mark
KUC type
RL type
WY type
(2) CONTRAST TABLE
CDJ-100S/KUC, RL and WY are constructed the same except for the following:
No.
Symbol and Description

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CDJ-100S
5
KUC type Only
RL, WY types Only
30
4
31
28
28
Refer to "2.4 SLOT-IN
MECHANISM ASSY".
Refer to "2.3 EXTERIOR (2/2)".
14
28
28
19
15
28
20
9
23
22
23
22
22
22
23
28
6
28
28
24
21
3
12
28
1
27
7
8
17
31
10
32
11
28
28
25
13
28
28
2
27
5
18
28
23
28
28
26
29
16
32
28
28
6
28
A
B
B
C
C
A
2.2 EXTERIOR (1/2)