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Crown PS200


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#1 eschecter

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Posted 31 October 2005 - 08:00 PM

I have a PS200 amp, and when powered up, both IOC led's come on, and a relay behind the power switch is buzzing badly. Measured + and- 45 volt dc on main filter caps and had correct voltage, with very low ripple. This problem exists whether or not there is a load on the amp and with or without input signal. I have no service manual or schematics. Can anyone please assist or am I better off sending it in for service?
Thanks!

#2 eschecter

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Posted 09 November 2005 - 11:36 AM

QUOTE(eschecter @ Oct 31 2005, 06:00 PM)
I have a PS200 amp, and when powered up, both IOC led's come on, and a relay behind the power switch is buzzing badly. Measured + and- 45 volt dc on main filter caps and had correct voltage, with very low ripple. This problem exists whether or not there is a load on the amp and with or without input signal. I have no service manual or schematics. Can anyone please assist or am I better off sending it in for service?
Thanks!
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Follow up: Repaired amp by replacing all electrolytic caps on the small ps board with relay: 4 @ 2.2uf/50v  1@6.8uf/63v. Problem solved..amp sounds great.