Hi all,
Long time lurker on the forum but first post looking for some help!
I’m trying to restore a Bang & Olufsen M20 CRT set that I recently acquired. It was sold as a donor / parts chassis for an MX200 I received at the same time, but upon inspection it all seems complete and in good condition, so I’d love to get this set working too.
Using the MX2000 set as a reference for how to connect everything up, when I plugged the set in and switched it on the dreaded RIFA cap on one of the front small boards exploded and stank the place out. In it’s dramatic demise it seems to have ripped off the solder pads too. But I’ve seen a few posts online saying it should work ok without this being replaced?
Since then, I have the standby light, but when you switch it on there is no picture, and the set goes completely dead after around 2 or 3 seconds.
I’ve been through and reflowed any dry looking joints, recapped as many capacitors as I had available with Panasonic replacements, replaced the battery and started going through and checking any suspicious looking resistors & diodes. But the problem remains.
I also replaced the transistor at TP01, but upon checking this seems to have now been shorted.
The community here seems incredibly knowledgeable so any advice on where I can check next would be a massive help. I’m a beginner when it comes to electronics repair, but really enjoying learning about these old beauties and would love to get this old girl going again.
Thanks so much for any pointers.
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