API 8200 repair

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nashkato

Well-known member
Joined
May 3, 2007
Messages
872
Location
Europe/Austria
hi there
i´ve got an API 8200 Aux mixer on the workbench right now .

it powers up , but when pressing the Mute button of channel 2 (led doesn´t work )  , all the leds from channels 1 to 4 are not lit anymore . channels 5 to 8 are still lit.
anyone got the service manual/schematics , or got a hint what the problem might be ?
thanks
PS : i haven´t opend it up completely up till now , neither did i check what it does to audio
 
ok
opened it up .
i found the the led of ch2 had a broken leg which caused the symptoms .
so far all seems to be in working order , gotta check out now how to test audio without the 7800 control room stereo master module.
 

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