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LCD TVs - LED
lcd philips 42 "does not turn on. help. !!
hace 5 años
hace 5 años
hello, I get a 42 inch philips lcd tv model 42pfl340355 that is totally dead, has no standby light or when connected to the electrical outlet does something .. the mosfet diodes capacitors resistors relay capacitors and others are fine . I commented that after checking the octocouplers I made a bridge to one between their legs and now the relay if it sounds and there is voltage, but the LED turns on for a moment like for 3 seconds and everything is off again but passing current with the bridge I did in the octocoupler, if I remove the bridge again there is no current anywhere, I need your help, thank you very much.
22.858
hace 5 años
hace 5 años
check everything related to the stanby voltage, if you have any doubt replace it like the optocouplers and the error amplifier u150 ... I leave the diagram .... greetings.
SCHEME + FONTE + PHILLIPS 42PFL3403 + + - + 42PFL5403 + - + 42PFL6403.pdf [495.12kb]
SCHEME + FONTE + PHILLIPS 42PFL3403 + + - + 42PFL5403 + - + 42PFL6403.pdf [495.12kb]
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