Pioneer XC-IS21MD User manual

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. 253 Allexandra Road, #04-01, Singapore 159936
PIONEER ELECTRONIC CORPORATION 1999
RRV2160
T – ZZY JUN 1999 Printed in Japan
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
XC-IS21MD
Type
ZBDXJ
ZLXJ/NC
XC-IS21MD
‡
‡
DC power supply from other system
DC power supply from other system
CD MD TUNER
Power Requirement Remarks
¶This service manual should be used together with the following manual(s):
Model Order No. Remarks
XC-IS21MD/ZUCXJ RRV2149

XC-IS21MD
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
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
1. Laser Interlock Mechanism
The loading position detect switch (in CD mechanism
assembly) is set to "CLMP ON(CD CLOSE)" (ON:low
level,OFF:high level) position, the system control
IC(IC5501) get the "CLMP" signal, and hand the laser
"LDON" signal to IC1101.
Then a laser diode can be lighted except when the level of
signal CLMP is low.
The interlock also does not function in the test mode*.
Laser diode oscillation will continue, if pin 1 of CXA1821M
(IC1101) on the CDMAIN UNIT is connected to GND, or
pin 19 is connected to low level (ON), or else the terminals
of Q1101 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 65.on the service manual RRV2149.
Additional Laser Caution
ZLXJ/NC type Only
(Right side view)

XC-IS21MD
3
2. CONTRAST OF MISCELLANEOUS PARTS
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.
Screws adjacent to mark on product are used for disassembly.
Reference Nos. indicate the pages and Nos. in the service manual for the base model.
NOTES:
When ordering resistors, first convert 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 J=5%,
and K=10%).
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
561
473
R50
1R0
5621
560
47k
0.5
1
RD1/4PU J
RD1/4PU J
RN2H K
RS1P K
56 x 101
47 x103
R50
1R0
561
473
5.62k RN1/4PC F562 x 1015621
XC-IS21MD/ZBDXJ, ZLXJ/NC and ZUCXJ types are constructed the same except for the following :
CONTRAST TABLE
Part No. Remarks
ZUCXJ type ZBDXJ type ZLXJ/NC type
PCB ASSEMBLEIES
NSP MD-COMP ASSY AWM7445 AWM7444 AWM7444
P7-1 U-COM ASSY AWU7331 AWU7330 AWU7330
NSP COMPLEX ASSY AWM7437 AWM7436 AWM7436
P7-3 AF ASSY AWU7302 AWU7301 AWU7301
PACKING
P3-3 Operating Instructions ARE7224 Not used Not used
(English/French)
P3-3 Operating Instructions Not used ARE7232 Not used
(English/Chinese/Spanish)
P3-3 Operating Instructions (English/ Not used Not used ARE7233
Chinese/Spanish/Portuguese)
P3-7 NSP Warranty Card ARY7033 Not used Not used
P3-12 Power Cord XDG3007 ADG1158 ADG1154
P3-18 Packing Case AHD7755 AHD7761 AHD7753
EXTERIOR (1/2)
P5-12 NSP Name Label AAL7238 AAL7236 AAL7235
P5-13 65 Label ARW7050 Not used Not used
P5-14 Label M ARW7065 ARW7065 Not used
Coution Label Not used Not used PRW1018 No.1
Ref.
No. Mark Symbol and Description
Note:
• The numbers in the remarks column correspond to the numbers on the exploded diagram, Refer to “Exploded views”
EXPLDED VIEWS
EXTERIOR SECTION
No.1
Rear Cover
ZLXJ/NC type
only

XC-IS21MD
4
R3063, R3064 RS1/10S0R0J RS1/10S152J
Mark Symbol and Description Part No.
AWU7302 AWU7301 Remarks
AF Assy
AWU7301 and AWU7302 are constructed the same except for the following:
R5511 RS1/10S103J RS1/10S223J
Mark Symbol and Description Part No.
AWU7331 AWU7330 Remarks
U-COM Assy
AWU7330 and AWU7331 are constructed the same except for the following:
CONTRAST OF PCB ASSEMBLIES
EF
CF