Quote:
Originally Posted by Geoff Bourquin
6 blinks is low B+ or over current protect. Sony manual suggests looking for loads on the +5 line.
7 blinks is loss of horizontal sweep.
I hate the blink codes, because half the time the steer me 180 degrees from where the trouble is.
I keep a couple of those MCZ3001 chips around at all times. IIRC, in this set, one is used to make the B+ supplies, and the other is the HV drive. Not like real TVs where the HV and horizontal sweep are the same circuit.
Those chips seem to go intermittent a lot. My first time troubleshooting a set with them I just about went nuts.
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This is why I quit troubleshooting those, and I just ordered new or rebuilt complete boards. $125-$200 for a new board, and a few minutes to address the eEprom, and you're done. No more 6PM-2AM troubleshooting sessions!
Charles