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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
C
C
C
C
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PIONEER ELECTRONIC CORPORATION 1998
DVD-ROM CHANGER
RRV1984
DRM-1004V40
T­ZZY JULY 1998 Printed in Japan
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Remarks
Power Requirement
Type
Model
VY/WL
O
AC100V/120V/230V
O
DC power supply from other system
ZUCYV/WL
O
DC power supply from other system
DVD-ROM DRIVE UNIT
DR-V02XI
DRM-1004V40
DR-V02XI
DVD-D302
OPTION DVD-ROM DRIVE UNIT
DVD-D302
Refer to the service manual RRV1772 for DRM-1004X40/VYWL.
CONTENTS
1. SAFETY INFORMATION .................................... 2
2. CONTRAST OF MISCELLANEOUS PARTS ..... 3
3. EXPLODED VIEWS AND PARTS LIST ............. 3
4. SCHEMATIC DIAGRAM ..................................... 8
5. PCB CONNECTION DIAGRAM ....................... 17
6. PCB PARTS LIST ............................................. 22
7. ADJUSTMENT .................................................. 24
8. GENERAL INFORMATION .............................. 28
8.1 IC ................................................................ 28
8.2 DIAGNOSIS ................................................ 33
8.2.1 DISASSEMBLY ....................................... 33
8.3 BLOCK DIAGRAM ...................................... 34
DR-V02XI and DVD-D302/ZUCYV/WL are all mentioned in this manal.


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DRM-1004V40, DR-V02XI, DVD-D302
2
1. Laser Interlock Mechanism
The position of the switch (S601) 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 deliberately
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 19 or 20 of
µPC2510 (IC50) on the MAIN board assy connected to
high level, or else the terminais of Q50 or Q51 are shorted
to each other .
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.
1. SAFETY INFORMATION
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: 7 mw
WAVELENGTH: 640 nm(DVD) , 780 nm(CD-ROM)
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
Additional Laser Caution
* Refer to page 25.
LABEL CHECK


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DRM-1004V40, DR-V02XI, DVD-D302
3
2. CONTRAST OF MISCELLANEOUS PARTS
3.1 PACKING for DVD-D302/ ZUCYV/WL (Option DVD-ROM Drive unit only)
Mark No.
Description
Part No.
Parts List
1
Operating Instructions
DRM1213
(English/French/German/Japanese)
2
Pad
DHA1366
3
Packing Case
DHG1860
4
Bag
DHL1052
5
DVD Badge
DAM1079
6
Polyethylene Bag
Z21-038
CONTRAST TABLE
DRM1004V40 and DRM1004X40 are constructed the same except for the following :
Remarks
Ref. No.
VYWL
Symbol and Description
Mark
DRM-1004V40
Part No.
DRM-1004X40
VYWL
PACKING
P4 - 3
Operating Instructions
DRC1050
DRC1091
(English/French/German/Japanese)
P4 - 7
Packing Case
DHG1731
DHG1859
P4 - 10
Packing Case Lavel
DRW1856
Not used
MAIN SECTION (1)
P7 - 5
NSP
Reader Drive Unit ( x four units)
DR-D12XI
Not used
P7 - 5
NSP
DVD-Rom Drive Unit ( x four units)
Not used
DR-V02XI
Note
P7 - 14
Tray Bezel
DNK3293
DNK3590
P7 - 50
Caution Label
DRW1813
Not used
P7 - 50
NSP
Caution Label
Not used
DRW1872
P7 - 51
Caution Label
DRW1811
Not used
P7 - 51
NSP
Caution Label
Not used
DRW1873
P7 - 52
Caution Label
DRW1812
Not used
P7 - 52
NSP
Caution Label
Not used
DRW1874
MAIN SECTION (2)
P10 - 59
Rear Panel B
DNC1451
DNC1488
DVD-ROM DRIVE UNIT for DR-V02XI and DVD-D302/ ZUCYV/ WL.
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.
÷ Reference Nos. indicate the pages and Nos. in the service manual for the base model.
÷ Screw adjacent to mark on the product are used for disassembly.
÷ When ordering resistors, first convert resistance values into code form as shown in the following examples.
3
2
6
5
1
4
3. EXPLODED VIEWS AND PARTS LIST
Note: DVD-Rom Drive unit (DR-V02XI and DVD-D302/ZUCYV/WL) are all mentioned in this manual (Refer to pages 3 - 34 ).


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DRM-1004V40, DR-V02XI, DVD-D302
4
3.2 EXTERIOR SECTION
a
a
A
20
20
20
15
12
12
63
11
14
67
68
55
56
19
16
17
18
60
57
57
57
54
53
22
59
52
5
7
6
8
9
21
57
51
55
10
13
58
59
40
43
59
24
23
69
20
18
26
20
3 (1/2)
20
42
31
73
70
30
29
20
32
27
28
20
20
1 : Froil
1
1
1
*
*
*
*


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DRM-1004V40, DR-V02XI, DVD-D302
5
72
48
45
4
72
45
48
72
45
48
Refer to"2.3 SERVO
MECHANISM ASSY SECTION".
25
1
49
44
A
41
50
66
47
37
65
57
57
57
33
62
3 (2/2)
62
39
38
64
37
37
36
57
57
61
35
57
39
10
9
2
57
38
33