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Pioneer XR-A790 Service Manual

Stereo cd cassette deck receiver
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STEREO CD CASSETTE DECK RECEIVER
XR-A790
XR-A390
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
XR-A790
‡
DBDXJ
‡
DDXJ/AR
‡
YPWXJ
¶ This service manual should be used together with the following manual(s):
Model No.
XR-A6800/MYXJ
XR-A4800/MYXJ
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, 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
PIONEER CORPORATION 2001
Power Requiremen
XR-A390
‡
AC110-127V/220-230V/240V
‡
AC110-127V/220-230V/240V
‡
AC240V
Order No.
RRV2328
CONTENTS
1. SAFETY INFORMATION ...................................... 2
3. SCHEMATIC DIAGRAM ..................................... 17
4. PCB CONNECTION DIAGRAM .......................... 23
5. ADJUSTMENT .................................................... 24
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
RRV2502
The voltage can be converted
by the following method.
With the voltage selector
With the voltage selector
-------
Remarks
T - ZZK JULY 2001 Printed in Japan
ORDER NO.

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Summary of Contents for Pioneer XR-A790

  • Page 1: Table Of Contents

    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 EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2001 T –...

  • Page 2: Safety Information

    1. SAFETY INFORMATION LABEL CHECK IMPORTANT THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1. SERVICING OPERATION OF THE APPARATUS S H O U L D B E D O N E B Y A S P E C I A L L Y Printed on the Rear Panel INSTRUCTED PERSON.

  • Page 3: Contrast Of Miscellaneous Parts

    Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 562 x 10 5.62k 5621 RN1/4PC 5 6 2 1 CONTRAST TABLE for XR-A790 XR-A790/DBDXJ, DDXJ/AR, YPWXJ and XR-A6800/MYXJ are constructed the same except for the following : Part No. Ref. No. Mark Symbol and Description XR-A6800 XR-A790 XR-A790...
  • Page 4 XR-A790, XR-A390 Part No. Ref. No. Mark Symbol and Description XR-A6800 XR-A790 XR-A790 XR-A790 Remarks /MYXJ /DBDXJ /DDXJ/AR /YPWXJ Fuse (FU2, FU3 : T3.15A) Not used AEK1059 AEK1059 Not used Fuse Card (For FU2, FU3) Not used AAX7493 AAX7493 Not used...
  • Page 5 XR-A790, XR-A390 CONTRAST TABLE for XR-A390 XR-A390/DBDXJ, DDXJ/AR, YPWXJ and XR-A4800/MYXJ are constructed the same except for the following : Part No. Ref. No. Mark Symbol and Description XR-A4800 XR-A390 XR-A390 XR-A390 Remarks /MYXJ /DBDXJ /DDXJ/AR /YPWXJ PCB ASSEMBLIES MAIN ASSY...
  • Page 6 XR-A790, XR-A390 Part No. Ref. No. Mark Symbol and Description XR-A4800 XR-A390 XR-A390 XR-A390 Remarks /MYXJ /DBDXJ /DDXJ/AR /YPWXJ P7-25 CD ENT Button XAD3055 XAD3109 XAD3109 XAD3109 No.12 P7-26 Display Panel XAK3125 XAK3262 XAK3262 XAK3262 P7-27 EQ Panel XAK3149 Not used...
  • Page 7 XAD3107 SC Button L XAD3105 Visual Button XAD3108 SC Button R XAD3106 (2) CONTRAST TABLE XR-A790 and XR-A390 are constructed the same except for the following : Part No. Mark No. Symbol and Description Remarks XR-A790 XR-A390 Deck Door_L XAN3037...
  • Page 8 XR-A790, XR-A390 ÷ DECK MECHANISM UNIT SECTION (XYM3011) • DECK MECHANISM UNIT (1/2) Note : When part #17 or #60 or #104 is replaced, part #16 also need to be replaced at the same time.
  • Page 9 XR-A790, XR-A390...
  • Page 10 XR-A790, XR-A390 • DECK MECHANISM UNIT (2/2) Note : When part #17 or #60 or #104 is replaced, part #16 also need to be replaced at the same time.
  • Page 11 XR-A790, XR-A390...
  • Page 12 XR-A790, XR-A390 • DECK MECHANISM UNIT PARTS LIST Mark No. Description Part No. Mark No. Description Part No. Assy’y HD Holder 50-093-4373 Spring 01-081-4601 Frame HD 50-219-3024 Plate AZ 50-119-4046 Spring 01-082-4652 Spring AZ 50-160-4108 Spring 01-082-4651 Spring 01-082-4650 Lever HD...
  • Page 13 XR-A790, XR-A390 CONTRAST OF PCB ASSEMBLIES AF ASSY XWZ3303 and XWZ3310 are constructed the same except for the following : Part No. Mark Symbol and Description Remarks XWZ3310 XWZ3303 IC5751 BU1923F Not used Q5751 2SA1037K Not used Q5752 DTC124EK Not used...
  • Page 14 XR-A790, XR-A390 AF ASSY XWZ3288 and XWZ3297 are constructed the same except for the following : Part No. Mark Symbol and Description Remarks XWZ3297 XWZ3288 IC5751 BU1923F Not used Q5751 2SA1037K Not used Q5752 DTC124EK Not used L3333, L3334 ATH-133...
  • Page 15 XR-A790, XR-A390 PRIMARY ASSY XWZ3291, XWZ3294 and XWZ3312 are constructed the same except for the following : Part No. Mark Symbol and Description Remarks XWZ3312 XWZ3291 XWZ3294 VOLTAGE SELECTOR Not used XKX3001 Not used LINE FILTER ATF1136 Not used Not used H3–H6...
  • Page 16 XR-A790, XR-A390 Mark No. Description Part No. Mark No. Description Part No. ÷ PCB PARTS LIST C6215 CFTLA103J50 C6211,C6254,C6403,C6417 CKSQYB102K50 FM/AM TUNER MODULE (AXQ7065) C6201,C6205,C6210,C6237,C6276 CKSQYB103K50 C6278,C6280,C6281,C6402,C6409 CKSQYB103K50 SEMICONDUCTORS C6418 CKSQYB103K50 IC6201 LA1832ML C6251,C6252 CKSQYB153K50 IC6202 LC72131MD C6203,C6259 CKSQYB223K50 Q6402...

  • Page 17: Schematic Diagram

    3. SCHEMATIC DIAGRAM Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST" 3.1 AF (3/3) ASSY 3/3F AF ASSY (XR-A790 : XWZ3303) (XR-A390 : XWZ3288) FRONT SPEAKERS XR-A790 : XKE3004...
  • Page 18 XR-A790, XR-A390 3.2 FM/AM TUNER MODULE MIX AMP RF AMP 1T378A BUFFER IF AMP FM +B SW MW RF TUNING BLOCK AKX7041...
  • Page 19 XR-A790, XR-A390 FM/AM TUNER MODULE (AXQ7065) AF AMP AF AMP CN6201 KP200IA14L REGULATOR...
  • Page 20 XR-A790, XR-A390 3.3 PRIMARY ASSY POWER TRANSFORMER XR-A790 : XTS3037 XR-A390 : XTS3036...
  • Page 21 • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS ONLY. PRIMARY ASSY XR-A790 : AEK1059 (T3.15A) (DBDXJ, XR-A390 : AEK1057 (T2A) DDXJ/AR, DBDXJ, DLXJN/NC, DDXJ TYPES DDXJ : XWZ3291)
  • Page 22 XR-A790, XR-A390 3.4 DISPLAY ASSY DISPLAY ASSY (XR-A790 : AWU7797) (XR-A390 : AWU7791) X5501 ASS7034 10MHz D5601-D5608, D5621, D5622 : SLR-343MC(NPQ) XR-A790 ONLY...

  • Page 23: Pcb Connection Diagram

    XR-A790, XR-A390 4. PCB CONNECTION DIAGRAM 4.1 FM/AM TUNER MODULE CN3051 FM/AM TUNER MODULE VR6201 Q6204 Q6203 SIDE A FM/AM TUNER MODULE (ANP7159-B) Q6202 Q6201 Q6304 Q6302 Q6303 Q6301 IC6201 Q6401 Q6214 IC6202 Q6306 Q6403 Q6402 Q6404 Q6205 SIDE B...

  • Page 24: Adjustment

    XR-A790, XR-A390 5. ADJUSTMENT Note : Adjustment of XR-A790 are the same as those of XR-A6800 except for the following: Adjustment of XR-A390 are the same as those of XR-A4800 except for the following: FM Tuner Section • Set the mode selector to FM BAND.

This manual is also suitable for:

Xr-a390Rrv2502