Pioneer xra 780 service manual

Page 1

Service
Manual

Pioneer

STEREO CD CASSETTE DECK RECEIVER

XR-A780
XR-A38O

XR-A380G R

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

ORDER NO.
RRV2416

T Model P R _ t The voltage can be converted
we XR-A780 xn-Asso xn-AssoGR °e' equ'reme by the following method.
DBDXJ/AR O O O AC110-127V/220-23OV/240V With the voltage selector

o This service manual should be used together with the following manual(s):

Model No. Order No. Remarks
XFl-A6800/MYXJ RRV2328
XFl-A4800/MYXJ
CONTENTS

1. CONTRAST OF MISCELLANEOUS PARTS -------- 2

2. SCHEMATIC DIAGRAM ---------------
3. PCB CONNECTION DIAGRAM-
4. ADJUSTMENT ..............................

........ 13
'19
...20

5- MUSIC PAD ....................................................... 21

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE, INC. P.O. BOX1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

©P|ONEER CORPORATION 2000

T - ZZK NOV. 2000 Printed in Japan

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XR-A780, XR-A380, XR-A380GR

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 /I\\ markfound 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 Screws adjacent to Y mark on product are used for disassembly.

lReference Nos. indicate the pages and Nos. in the service manual for the base model.
I When ordering resistors, first convert resistance values into codeform as shown in thefollowing examples.
Ex] When there are 2 effective digits (any digit apartfrom 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,

and K=10%).

560 - 56 X 10 - 561
47k a 47X 10 a 473
0.5 - R50
l - 1R0 -- -

Ex.2 When there are 3 eflective di ts (such as in high prec ion metalfilm re.
5.6Zk * 562 X 10 _ 5621

l CONTRAST TABLE for XR-A780

tors ).
----- RNI/4PC-

----- REP-EEK

IF

XR»A780/DBDXJ/AFI and XR-A6800/MYXJ are constructed the same except for the following :

Part No.
Ref. No. Mark Symbol and Description XR-A6800 XR-A780 Remarks
/MYXJ /DBDXJ/AR
PCB ASSEMBLIES
MAIN ASSY XWM3163 XWM3161
P5- 1 L AF ASSY XWZ3310 XWZ3303
COMPLEX ASSY XWM3168 XWM3165
P5- 3 PRIMARY ASSY XWZ3312 XWZ3291
P7- 1 DISPLAY ASSY XWZ3311 XWZ3305
P5- 4 FM/AM TUNER Module AXQ7068 AXQ7065
PACKING SECTION
P3- 1 A Power Cord ADG1154 XDG3009
P3- 2 FM Antenna ADH7005 ADH7004
P3- 6 NSP Dry Cell Battery (FISP, AA) VEM-O13 Not used
P3-10 Packing Case XHD3143 XHD3130
P3-11 NSP Warranty Card ARY7022 Not used
P3-13 Operating Instructions (English/French) XRE3030 Not used
P3-14 Operating Instructions (Italian/Dutch/German) XRC3020 Not used
P3-15 Operating Instructions (Portuguese/Swedish/Spanish) XR63021 Not used
Operating Instructions (English/Chinese/Spanish) Not used XRE3032
EXTERIOR SECTION
P5- 6 A Ceramic Capacitor (C1) CKPUYB102K50 Not used
P5-15 Rear Panel XNC3058 XNC3061
P5-17 Earth Plate XNGGO15 Not used
P5-3O Caution Label HE PFIW1233 Not used
P5-31 Caution Label VFIW1094 Not used
P5-36 NSP Getter XAX3169 XAX3172
A Fuse (FU2, FU3 :T3.15A) Not used AEK1059 *1
Fuse Card (For FU2, FU3) Not used AAX7493 *2
NSP Name Label Not used XAL3063 *3
FRONT PANEL SECTION
P7-26 Display Panel XAK313O XAK3132
P7-36 Power Button XAD3044 XAD3043
P7-38 SC Button XAD3046 XAD3060
P7-42 Sub Panel XAK3199 XAK3200

Notes : For PCB ASSEMBLIES, Refer to CONTRAST OF PCB ASSEMBLIES", 2. SCHEMATIC DIAGRAM and 3. PCB CONNECA

TION DIAGRAM".

*1 Refer to 2. SCHEMATIC DIAGRAM.
*2 Stick Fuse Card on the PRIMARY ASSY.
*3 Stick Name Label on the Rear Panel.