Quote:
Originally Posted by chorumluum
My technian measure that top side 2 resistor and said me top side value will be differet horizontal wll be 49 k ohm and pl-500 will be 0m. That is possible? Sorry for my english.
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PL-500 is the input voltage line so if the value in Ohm is near 0 there is a short. To localize that short, remove PL500 (1 in pic) and desoldered PJP500 and PJP501. If you have 0 Ohm on:
point a -> short on main B+ 19V line (the problem is in another location)
point b -> remove capacitors 1 2 3 4 if the short persist probably PU500 is broken.
There are probably other components that concern PU500 but without the scheme I cannot help you.