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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
TROUBLE SHOOTING GUIDE
1. NO POWER
NO POWER
CHECK C910 DC VOLTAGE? DC=MORE THAN 150V YES
NO
TROUBLE IN F901, R901, AND R910, D901 OPEN/SHORT
CHECK T901 PIN 3?
NO
CHECK IC901 PIN 6 ?
20V
NO
TROUBLE IN IC901, IC902, IC952, Q901, R917, R920, AND R921
YES YES TROUBLE IN Q901, R917, R920, AND R921
CHECK SMPS 2nd DC VOLTAGE ?
NO OUTPUT VOLTAGE
CHECK Q501, 2nd DC VOLTAGE LINE ?
NO
TROUBLE IN Q501, 2nd DC VOLTAGE LINE
6.3V/ 12V/ 12.5V 14V/ 72V YES
CHECK IC952 PIN 7 VOLTAGE (5V)?
NO
TROUBLE IN IC952
YES
TROUBLE IN OTHER PRIMARY CIRCUIT
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