Hi guys need some help with this Loewe 525 Indvidual Subwwoofer which doesn't seem to be powering on.
AC is coming through, bridge rectifier is ok and outputting I think was 350v and main filter cap is reading 350v across it. A little further ahead there were a couple of blown 470k Resisters I think which are around 1w (Though not sure)
I replaced these resisters with 470k 0.6w !! which I thought would be ok just to test. I did buy 2w ones but lost them on the way home and they were the last two in store so had to go with 0.6w ones which again I thought would be ok to test until I get 2w ones.
Anyhow this hasn't made a difference, I'm not getting any voltages further down for example of the 2 big caps up top am not getting any DC voltage.
The blown resistors are connected to pin 3 VCC of the 1M0880 FPS so thinking it could possibly be the cause?
How do I test this?
AC is coming through, bridge rectifier is ok and outputting I think was 350v and main filter cap is reading 350v across it. A little further ahead there were a couple of blown 470k Resisters I think which are around 1w (Though not sure)
I replaced these resisters with 470k 0.6w !! which I thought would be ok just to test. I did buy 2w ones but lost them on the way home and they were the last two in store so had to go with 0.6w ones which again I thought would be ok to test until I get 2w ones.
Anyhow this hasn't made a difference, I'm not getting any voltages further down for example of the 2 big caps up top am not getting any DC voltage.
The blown resistors are connected to pin 3 VCC of the 1M0880 FPS so thinking it could possibly be the cause?
How do I test this?
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