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Pioneer A-109 Service Manual
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Pioneer A-109 Service Manual

Pioneer a-109 stereo amplifier service manual
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STEREO AMPLIFIER
A-109
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
A-109
MYXJ
MVXJ
MLXJ
SBDXJ
¶ This service manual should be used together with the following manual(s):
Model No.
A-209R/MYXJ
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2000
Power Requirement
AC220-230V
AC220-230V
AC220-230V
AC110V/120-127V/220V/240V
Order No.
RRV2283

CONTENTS

2. SCHEMATIC DIAGRAM ....................................... 4
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
RRV2284
The voltage can be converted by
the following method.
–––––
–––––
–––––
With the voltage selector
Remarks
T – ZZK APR. 2000 Printed in Japan
ORDER NO.

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Summary of Contents for Pioneer A-109

  • Page 1 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 N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2000 T –...
  • Page 2 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 A-109/MYXJ, MVXJ, MLXJ, SBDXJ and A-209R/MYXJ are constructed the same except for the following : Part No. Ref. No. Mark Symbol and Description A-209R A-109 A-109...
  • Page 3 A-109 Part No. Ref. No. Mark Symbol and Description A-209R A-109 A-109 A-109 A-109 Remarks /MYXJ /MYXJ /MVXJ /MLXJ /SBDXJ P5-42 Voltage Selector (S2) Not used Not used Not used Not used AKX-507 P5-43 Fuse (FU2, FU3 : 800mA) Not used...

  • Page 4: Schematic Diagram

    A-109 2. SCHEMATIC DIAGRAM 2.1 AF ASSY : AUDIO SIGNAL ROUTE AF ASSY AWX7111 C313,C337 : IDLE ADJ. (L CH) C314,C338 : IDLE ADJ. (R CH) CN501...
  • Page 5 A-109 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST" CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491001 MFD, BY LITTELFUSE INK. FOR IC454 (AEK7009).
  • Page 6 A-109 2.2 FRONT L ASSY FRONT L ASSY AWX7120 FRONT L ASSY S701 : SPEAKER A S702 : LOUDNESS...