hace 6 años
Good morning dear colleagues of yoreparo, I have a problem with the MC-059A chassis which I get with the following failure to check the voltage of + B this was short, which led me to isolate the line and I found that the Q402 (TT2170) was damaged, I proceeded to replace it, just like the capacitors of the + B line, the C814 (160V. 220MF) and the C822 (160V. 47MF), at this point the strange thing begins once the capacitors have been replaced before After installing the Q402 I prepared to measure the voltage of + B which gave me 110VOL, but when I installed the Q402 (TT2222 REPLACEMENT) it turned on a few seconds and then this voltage dropped to zero, the TV is playing (tic, tic, tic) coming from the re-lay, raise the collector pin Q402 and the voltage again stabilized, I measured the Q402 and it is in good condition raise the Q16 and nothing still remains the same. I need your collaboration.
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