Good day all,
I have some ICEPOWER modules that I am trying to bring back to life and any assistance would be greatly appreciated from anyone who can assist.
I have one that had two bulk caps in the primary that bulged, there are four, these were all replaced. When the unit is powered up the on board led goes straight to green in a blinking format at 120v. There is no output from the amp when load and signal is applied. The 120V DC buss is 96VDC, the 80VDC buss is 64VDC and the + and -12VDC is fluctuating at the same rate as the led going all the way up to 20VDC. Its as though its trying to start but there is an error. All major components are good (mosfets, diodes etc.)
PWM chip was replaced.
Any ideas or what next to look at?
thanks in advance.
I have some ICEPOWER modules that I am trying to bring back to life and any assistance would be greatly appreciated from anyone who can assist.
I have one that had two bulk caps in the primary that bulged, there are four, these were all replaced. When the unit is powered up the on board led goes straight to green in a blinking format at 120v. There is no output from the amp when load and signal is applied. The 120V DC buss is 96VDC, the 80VDC buss is 64VDC and the + and -12VDC is fluctuating at the same rate as the led going all the way up to 20VDC. Its as though its trying to start but there is an error. All major components are good (mosfets, diodes etc.)
PWM chip was replaced.
Any ideas or what next to look at?
thanks in advance.
maybe this thread helps a bit (post #43):
Sanyo/B&O Icepower 200AC Rev.D, schematic about rev. engin., not complete finished
Sanyo/B&O Icepower 200AC Rev.D, schematic about rev. engin., not complete finished
Last edited:
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