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Help on Studer A820
Hello, I'm trying to repair my studer a820 1/2" machine. It keeps
popping a fuse on the cap/aux section ( or should I say the light doesn't light up on that section of the indicator lights after popping the fuse) Then of course the lcd screen reads "err: Power Supply" Any suggestions? I'm out in the sticks, and I really don't want to have to box this guy up and mail him 1/2 way across the country for repair. I'd like to do as much leg work as I can and then maybe mail in whatever circuit board I need to. I have tried pulling all the cards and powering up, but I still pop a fuse, so I'm guessing it's not a problem on one of the cards. Please help Aaron Householter studio1117 |
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#3
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In article . com,
wrote: Hello, I'm trying to repair my studer a820 1/2" machine. It keeps popping a fuse on the cap/aux section ( or should I say the light doesn't light up on that section of the indicator lights after popping the fuse) Then of course the lcd screen reads "err: Power Supply" Any suggestions? I'm out in the sticks, and I really don't want to have to box this guy up and mail him 1/2 way across the country for repair. I'd like to do as much leg work as I can and then maybe mail in whatever circuit board I need to. I have tried pulling all the cards and powering up, but I still pop a fuse, so I'm guessing it's not a problem on one of the cards. No, it's a power supply problem. Pull the supply module out and ship it off for repair. It's actually not THAT hard to work on the things, and if it's popping fuses the chances of it being a shorted cap are pretty good. But if you aren't used to working on supplies, send it off. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#4
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#5
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Yeah, all the test points show proper voltage, but the cap/aux one
shows -10v or something like that. I don't have a scheme or a manual unfortunately(although I'm looking.) I don't see a voltage listed on the board where the test points are. i'm not even sure which board houses the power supply stuff. I'm just trying to get a start on this before my tech comes around. actually if anyone could tell me what that voltage is suppose to be at the cap/aux test point and where the power supply board is located that would help tons. Thanks aaron Householter studio1117 |
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