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It was magic after so many years to still be able to source this info. It was equally amazing to return my Pioneer receiver to it near new sound quality AFTER NEARLY 30 YEARS! Thank you for this ability!
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Very quick and easy website to use and fast download of manual, quality of manual is excellent and will be pleased to use this service again in the future, thanks so much!
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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
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Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
AV-21L31 AV-25L31
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power supply cord. 2. Remove the 7 screws marked � and 4 screws maked ı as shown in Fig.1. 3. Withdraw the Rear cover toward you. [CAUTION] When reinstalling the rear cover, carefully push it inward after inserting the Main PWB into the rear cover groove.
�
REMOVING THE MAIN PW BOARD
� After removing the rear cover.
1. Slightly raise the both sides of the Main PWB by hand, take off the PB stopper marked � from the front cabinet. 2. Withdraw the Main PWB backward. (If necessary, take off the wire clamp and connectors, etc.)
REMOVING THE SPEAKER
� After removing the rear cover.
1. Remove the 2 screws marked � and 2 screws maked ´ as shown in Fig.1. 2. Follow the same steps when removing the other hand speaker.
CHECKING THE MAIN PW BOARD
1. To check the back side of the Main PWB. 1) Pull out the Main PWB. (Refer to REMOVING THE MAIN PW BOARD). 2) Erect the Main PWB vertically so that you can easily check its back side. [CAUTION] Before turning on power, make sure that the CRT earth wire and other connectors are properly connected. When repairing, connect the Deg. coil to the DEG. connector on the Main PWB.
� �
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire. 2. Never remove the cable tie used for tying the wires together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.
6
No. 51969
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