hello masters,
need some help again
got a polaroid (cry) TV to fix. stanby led ok, turn green on power but goes red and the tv not start.
the power board is a chinese universal TPS.506.PC821 board
seems already have read this issue but i want to learn more !!! yeah !!
so the RB114 and RB115 resistor are burn (realy burn), seems to be an overcurent issue but not understand what could be the culprit, so first i have changed this two resitors, and the 2 new ones are dead too now.
i understand that the tv can't start cause 12V can't be created
but why this resistors burn ? can you help me ?
i attached the schematics i 've found
need some help again
got a polaroid (cry) TV to fix. stanby led ok, turn green on power but goes red and the tv not start.
the power board is a chinese universal TPS.506.PC821 board
seems already have read this issue but i want to learn more !!! yeah !!
so the RB114 and RB115 resistor are burn (realy burn), seems to be an overcurent issue but not understand what could be the culprit, so first i have changed this two resitors, and the 2 new ones are dead too now.
i understand that the tv can't start cause 12V can't be created
but why this resistors burn ? can you help me ?
i attached the schematics i 've found
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