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ORDER NO.
PIONEER 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 Allexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 1999
c
RRV2202
DR-R7181
1. SAFETY INFORMATION ....................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................. 3
3. SCHEMATIC DIAGRAM ........................................ 6
4. PCB CONNECTION DIAGRAM ........................... 10
5. PCB PARTS LIST ................................................ 12
CONTENTS
6. ADJUSTMENT ..................................................... 13
7. GENERAL INFORMATION .................................. 13
7.1 DISASSEMBLY/ASSEMBLY .......................... 13
7.2 DIAGNOSIS ................................................... 19
8. PANEL FACILITIES AND SPECIFICATIONS ....... 22
T ­ ZZY SEPT. 1999 Printed in Japan
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
CD-R DRIVE UNIT
Remarks
Type
Model
DR-R7181
Power Requirement
ZUCYV/WL
O
DC Power supply from other system


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DVD-D7361
2
1. 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.
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
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 26 mw
WAVELENGTH: 790 nm
IMPORTANT
The pickup of this device conforms to Class 3b of the FDA Laser Restrictions
(CFR21 PART 1040), and the device, which conforms to Class A as a total
product, is not to be disassembled for repair in the U.S.A. or its territories.
In other districts, the device must be disassembled for repair only by a
specially instructed person with sufficient care against laser light.
When the cover is opened, close viewing of the objective lens
with the naked eye will cause exposure to a Class 3b laser
beam.
Additional Laser Caution


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DR-R7181
3
2. EXPLODED VIEWS AND PARTS LIST
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.
2.1 PACKING
NSP
1
Warranty Card
ARY1093
2
Operating Instructions
DRC1111
(English/ French/ German/ Japanese)
NSP
3
Polyethylene Bag
Z21-010
(100x230x0.018)
4
Polyethylene Bag
Z21-038
(230x340x0.03)
5
Pad
DHA1455
6
Packing Case
DHG1918
7
Bag
DHL1052
NSP
8
Label
VRW1629
Mark No.
Description
Part No.
PARTS LIST
4
5
2
1
3
8
6
7
1
CD-R Drive-S
DXX2461
2
Polyethylene Bag
DHL1114
3
Pad
DHA1414
4
Packing Case
DHG1991
Mark No.
Description
Part No.
PARTS LIST
2
4
3
1
3
CD-R DRIVE-S (DXX2461) for Service
CD-R DRIVE UNIT (DR-R7181)


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DR-R7181
4
2.2 EXTERIOR
E
A
D
A
A
B
B
C
C
D
E
27
73
73
16
26
31
71
71
79
79
88 (2/3)
88 (1/3)
88 (3/3)
44
71
90
45
12 64
68
69
57
86
58
69
51
49
49
15
37
39
71
75
42
72
32
73
40
71
23
77
71
38
71
19
33
83
84
68
59
61
68
55
3
78
54
10
10
11
13
13
47
53
48
87
50
58
71
60
6
2
71
80
7
5
67
4
14
24
56
80
34
29
80
91
33
30 71
81
25
81
17
68
89
46
83
28
20
73
76
82
68
73
18
41
35
80
36
80
21
43
22
9
8
10
10
65
65
68
66
80
57
43
47
66
70
70
63
41


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DR-R7181
5
1
· · · · ·
2
WIFB BOARD ASSY
DWX1964
3
IDSB BOARD ASSY
DWS1297
4
Capacitor (C1)
CFTLA224J50
5
Connector Assy
DKP3281
6
Connector Assy
DKP3456
7
Connector Assy
DKP3471
8
Connector Assy
DKP3500
9
Connector Assy
DKP3486
10
Sheet
DEB1435
11
Sheet
DEC2337
12
Edge guard
DEC2339
13
Float Stopper
DNH2217
14
Connector Assy
PF02PY-B15
NSP
15
Servo Mechanism Assy
DXB1726
16
Disc Holder Spring
DBH1342
17
Spring
DBK1134
18
Earth Plate
DBK1139
19
Cushion
DEB1355
20
Slide Sheet
DEC2034
21
Disc Holder Sheet
DEC2203
22
Clamper Stay S
DND1206
23
Switch Bracket
DNF1539
24
Clamper Base
DNH2283
25
Joint Arm
DNH2284
26
CL Disc Holder
DNK3253
27
Motor Gear
DNK3254
28
CL Gear (B)
DNK3256
29
CL Gear (C)
DNK3257
30
Disc Holder (L)
DNK3289
31
Disc Holder (R)
DNK3290
32
Disc Stopper
DNK3291
33
Rack Plate
DNK3292
34
CL Gear (A)
DNK3363
35
Side Rack (L)
DNK3364
36
Side Rack (R)
DNK3365
37
Clamper Bracket HW
DNK3715
38
Lever Switch
DSK1003
NSP
39
Clamper
DNK3720
NSP
40
Motor
PXM1002
41
Tape (G)
REH1010
42
Damper Assy
VXA1153
43
Floating Screw
DBA1072
44
PL Lock Spring
DBH1447
45
PL Lock Arm
DBK1187
Mark No.
Description
Part No.
46
PL Earth Plate
DBK1174
47
Floating Rubber
DEB1333
48
Froat Base
DNH2438
49
Froat Weight
DNH2439
50
Froat Guard
DNH2440
NSP
51
Card Spacer
DEC1770
52
· · · · ·
53
Player Base HW
DXB1723
54
Under Cover
DNH2441
55
PL Rear Panel HW
DNC1513
56
PL Upper Cover
DNE1372
57
PL Angle HW
DNF1633
58
Float Spring
DBH1458
59
PL Grip
DNH2399
60
PL Rail
DNK3665
61
PL Lock Cap
DNK3667
62
· · · · ·
NSP
63
Plate Spring
DBK1177
NSP
64
Edge Sadle
DEC1807
65
Screw
PMA26P050FMC
66
Screw
PMB30P080FMC
67
65 Label
ARW7050
68
Screw
BBT30P060FZK
69
Screw
ABZ30P060FMC
70
Screw
AMZ26P040FMC
71
Screw
BBZ30P060FMC
72
Screw
BBZ30P080FZK
73
Screw
BPZ30P080FCU
74
· · · · ·
75
Screw
PMA20P050FMC
76
Screw
PMH20P040FMC
77
Screw
PMH26P060FMC
78
Screw
TBZ40P060FMC
NSP
79
Cord Clamper
ZCB-069Z
80
Washer
WT26D047D050
81
Washer
WT36D072D050
82
E Ring
YE30FUC
83
Binder
ZCA-SKB90BK
84
Damper Braket
DNF1541
85
· · · · ·
NSP
86
MAIN ASSY
DWX2017
NSP
87
FRONT ASSY
DWX2018
NSP
88
CD-R Drive
CD-R58S
89
Label
DAL1130
90
Cord Clamper
RNH-184
91
CD-R Drive-S
DXX2461
Mark No.
Description
Part No.
EXTERIOR PARTS LIST