Afternoon everyone!
Had a friend call me over to look at her flat-screen that just suddenly lost all video display while she was watching a movie. The back-lights will turn on and stay on. I couldn't verify audio but she said it continued to work. The remote works and I get a red standby led when TV is off.
Found no bulging caps or any burnt components after a careful examination close up. I checked voltages from power supply and they are very close to spec while powered on. (Sorry I forgot my notes back at the office with exact readings).
I confirmed +12v from mainboard to TCON bored on both of the blue wires on the LVDS Connector. I also confirmed +12v on both sides of the fuse on the TCONN board.
I noticed the processor is getting slightly warm on the mainboard telling me that it's possibly operating.
Where should I go from here? The TCON board is bonded and not replaceable. A service manual would also be very helpfull, Have been unable to locate one at this point.
(Sorry for the crappy pics, they were only intended for my use, I should be able to get better ones tonight.) I've also included links to the same boards I have for a better view if it helps any.
RCA 40" LED:
P/N: LED40C45RQ
TCON (Is bonded to LCD, not replaceable):
P/N: MB7S60TS4LV0.3
http://www.ebay.com/itm/T-CON-Board-...8AAOSwa-dWiu7k
MainBoard:
P/N: 40RE01M3393LNA35-B4
http://www.ebay.com/itm/RCA-LED40C45...oAAOSwZ1lWeEn4
PowerSupply:
P/N RE46ZN0880
http://www.ebay.com/itm/146-RCA-LED4...EAAOSwDNdVnEsd
Had a friend call me over to look at her flat-screen that just suddenly lost all video display while she was watching a movie. The back-lights will turn on and stay on. I couldn't verify audio but she said it continued to work. The remote works and I get a red standby led when TV is off.
Found no bulging caps or any burnt components after a careful examination close up. I checked voltages from power supply and they are very close to spec while powered on. (Sorry I forgot my notes back at the office with exact readings).
I confirmed +12v from mainboard to TCON bored on both of the blue wires on the LVDS Connector. I also confirmed +12v on both sides of the fuse on the TCONN board.
I noticed the processor is getting slightly warm on the mainboard telling me that it's possibly operating.
Where should I go from here? The TCON board is bonded and not replaceable. A service manual would also be very helpfull, Have been unable to locate one at this point.
(Sorry for the crappy pics, they were only intended for my use, I should be able to get better ones tonight.) I've also included links to the same boards I have for a better view if it helps any.
RCA 40" LED:
P/N: LED40C45RQ
TCON (Is bonded to LCD, not replaceable):
P/N: MB7S60TS4LV0.3
http://www.ebay.com/itm/T-CON-Board-...8AAOSwa-dWiu7k
MainBoard:
P/N: 40RE01M3393LNA35-B4
http://www.ebay.com/itm/RCA-LED40C45...oAAOSwZ1lWeEn4
PowerSupply:
P/N RE46ZN0880
http://www.ebay.com/itm/146-RCA-LED4...EAAOSwDNdVnEsd
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