Hello everyone.
I beseech the help of this forum in hopes there can be a resolution to my television dilemma.
Bear with me as what I layout might be long, but the slight detail may mean the difference between solution and failure.
Overview
I received this tv from my brother. I am told that after a week of idle (a vacation) the tv did not turn on. He took it for repair and was told nothing was wrong and that it did in fact work. And lo it did work until the next prolonged idle time. After a year delay he gave it to me to explore and play around with.
The status of the tv as I took ownership of it:
When plugged in, the red standby light comes on. Upon pushing the power button, standby flashes five times and the Power Supply relay clicks once. After a short delay the relay clicks again and the sequence can be repeated again. No LCD, no backlight, no sound.
The testing and prodding:
-No noticeable physical damage of any sort (ie burn,crack,leak)
-The PS fuses test good
-The PS electrolytic capacitors test within the +-10% (no esr meter test though) {out of circuit}
-The PS transistors seem to measure fine (in and out of circuit)
-PS Bridge rectifier seems to measure fine (in circuit)
-PS Diodes seem to measure fine (in circuit)
-The outputs of the PS to the main board all test to spec of the legend
-The main board seems to measure voltage correctly (according to the service manual trouble shooting)
-The outputs to the backlight seem to measure the appropriate voltage, HOWEVER, I have yet to get it to turn on via PS power. The LEDs on their own light up (via multi meter one at a time) but I don't have a battery/supply big enough to light them all up. The wiring tests good continuity.
-The Tcon board does not have any voltage going into it. The fuse tests good continuity, as does the lvds cable. I cannot measure any voltage on the main board side either.
At the current stage, the tv has no backlight and no voltage to tcon but PS and Main seem to check out fine.
This has turned into an odd quandary for me as I have exhausted my limited experience. According to the internet, this is an odd combination and I cannot find similar situations. Also due to the age of the tv, exact parts may be a struggle to find. I am under the impression that there is no such thing as universal components (mofets in particular) and if it is not a match to the coding then it won't work.
At this point I would just like to understand what is at error. If there is a check/test I have overlooked, I would be pleased with the assistance.
Thank you for your consideration.
Model: UN55c6300SFXZC
PS: BN44-00358B
Main: BN94-03366E
Tcon: V460H1-CH7
I beseech the help of this forum in hopes there can be a resolution to my television dilemma.
Bear with me as what I layout might be long, but the slight detail may mean the difference between solution and failure.
Overview
I received this tv from my brother. I am told that after a week of idle (a vacation) the tv did not turn on. He took it for repair and was told nothing was wrong and that it did in fact work. And lo it did work until the next prolonged idle time. After a year delay he gave it to me to explore and play around with.
The status of the tv as I took ownership of it:
When plugged in, the red standby light comes on. Upon pushing the power button, standby flashes five times and the Power Supply relay clicks once. After a short delay the relay clicks again and the sequence can be repeated again. No LCD, no backlight, no sound.
The testing and prodding:
-No noticeable physical damage of any sort (ie burn,crack,leak)
-The PS fuses test good
-The PS electrolytic capacitors test within the +-10% (no esr meter test though) {out of circuit}
-The PS transistors seem to measure fine (in and out of circuit)
-PS Bridge rectifier seems to measure fine (in circuit)
-PS Diodes seem to measure fine (in circuit)
-The outputs of the PS to the main board all test to spec of the legend
-The main board seems to measure voltage correctly (according to the service manual trouble shooting)
-The outputs to the backlight seem to measure the appropriate voltage, HOWEVER, I have yet to get it to turn on via PS power. The LEDs on their own light up (via multi meter one at a time) but I don't have a battery/supply big enough to light them all up. The wiring tests good continuity.
-The Tcon board does not have any voltage going into it. The fuse tests good continuity, as does the lvds cable. I cannot measure any voltage on the main board side either.
At the current stage, the tv has no backlight and no voltage to tcon but PS and Main seem to check out fine.
This has turned into an odd quandary for me as I have exhausted my limited experience. According to the internet, this is an odd combination and I cannot find similar situations. Also due to the age of the tv, exact parts may be a struggle to find. I am under the impression that there is no such thing as universal components (mofets in particular) and if it is not a match to the coding then it won't work.
At this point I would just like to understand what is at error. If there is a check/test I have overlooked, I would be pleased with the assistance.
Thank you for your consideration.
Model: UN55c6300SFXZC
PS: BN44-00358B
Main: BN94-03366E
Tcon: V460H1-CH7
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