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Synth Fix synthesizer repair forums
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clack
Joined: 21 Oct 2010 Posts: 2
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Posted: Thu Oct 21, 2010 10:13 am Post subject: Octave Cat Power supply |
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Hello ive been repairing a cat and I noticed on the schematic that the tantalum (c82) and big electrolytic (c78) in the psu seems to be the wrong way round. the positive side of the cap should be on GND and the negative on -15? this is what I did but the service manual has them the other way round!
Is this correct?
based on schematic here
http://img229.imageshack.us/img229/284/92567996.jpg |
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xarolium
Joined: 25 Oct 2010 Posts: 4
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Posted: Mon Oct 25, 2010 5:37 am Post subject: |
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Dear clack,
Do you have the +15v and -15V on the P1A connector of the PSU?
Check if your Condensator was desold or not .
If not try to change your DC regulator
Best regard,
Xarolium |
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clack
Joined: 21 Oct 2010 Posts: 2
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Posted: Sat Nov 06, 2010 11:37 pm Post subject: |
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hey xarolium,
Sorry , I think you misunderstood, im trying to ask if the schematic is wrong or am I missing somthing? see those caps I mentioned and the + seems to be on -15 and - on 0v. It makes sense the current goes in the wrong direction , but I always get a nagging feeling that I am probably wrong!!! |
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