Pioneer dru 124 x 7 service manual

Page 1

GD PIONEER

The Art of Entertainment

I
Serv1ce
Manual

RRV1 355
CD-ROM DRIVE UNIT
0 Refer to the service manual RRV1273 for
DR-UA124X-3/ZUC/WL.
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODELISI AND TYPEISI.
Model
Type DR-U124X-7 DR-US124X-6 Power Requirement Remarks
ZUC/WL O 0 DC power supplied from other system component
CONTENTS
1. CONTRAST OF MISCELLANEOUS
PARTS ..................................... . 2

2r SCHEMATIC AND PCB DIAGRAMS
3' BLOCK DIAGRAM .....................
4_ 1c INFORMATION .............................. 12

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1»Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC{ PO. Box 1760, Long Beach, CA 90801-1760, USA
PIONEER ELECTRONIC [EUROPE] N.V . Haven 1087 Keetberglaan 1 9120 Melsele, Belgium
PIONEER ELECT RONICS ASIACENTRE PTE. LTD. 501 Orchard Road #10-00 Lane Crawlord Place. Singapore 0923
0 PIONEER ELECTRONIC CORPORATION 1995
TiDFY MAY 1995 Printed in Japan

Page 2

DR-U 1 24X-7, DR-US 1 24X-6

1. CONTRAST OF MISCELLANEOUS PARTS

NOTES :
0 Parts marked by NSF are generally unavailable because they are not in our Master Spare Parts List.
0 The A 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.
0 Parts marked by "© are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
0 When ordering resistors, first convezt resistance values into code form as shown in the following examples.
Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by I = 5%,
and K = 10%).
5600 - 56 x 1019561
471(5) -> 47 x103 6 473

-- RD1/8PMIE] [II I
~ RBI/4P5 m J
----- RNZHIE] IE K

0.59 e, 0R5 ....................
194010 ............................................. RSIPEJEIEK

Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors).
5.621: a 562 x 101 -> 5621 ------------------ RM1/4PCEI E E El F

DR-U124X-7/ZUC/WL, DR-US124X-6/ZUC/WL and DR-UA124X-3/ZUC/WL have the same construction ex-
cept for the following:

Part No.
""k slim 3 °°'°"P"°" DR-UA124X-3I DR-U124X-7I Dn-us124x-e/ "mm
ZUC/Wl. zucIWL ZUC/WL
MAINE ASSY DWM1490 DWM1489 DWM1495
NSP MOTHER BOARD ASSY (ATAPI) Dwx1574 Not used Not used
NSP MOTHER BOARD ASSY (SCSI) Not used DWX1573 DWX1592
EPAROM (10702) DYW1418 DYWMOI DYW14Z4
Label DRW1649 DRW1647 DRW1680
Packing case DHGlé47 DHGISG3 DHGIBGZ
Operating instructions (English/French) DRCIOZI DRC1025 DRC1024

O MOTHER BOARD ASSY (SCSI) IDWX1592l
DWX1592 and DWX1573 have the same construction except for the following :

Part No.
Mark Symbol & Description Remarks

DWX1 573 DWX 1 592
S702 DSGIO47 Not used
[.301 DTLlOlS Not used
L302 Not used OIL1040
C314 CCSRCHIOODSO Not used
C315 CKSRYBIOZKSD Not used
0316 CCSRCH220J50 Not used
C323 Not used CCSRCHIBOJSI]
0809 CCSRCHIBOJSO CCSRCH220150
R311 RSI/165511] Not used
R326 Not used RSI/165000]
R327 RSI/105000} Not used
X301 (33i8688MHz) ASS7000 Not used
X801 (37.2557MH2) D551063 Not used
X801 (33i8688MHz) Not used ASS7000