Proscan 40LC45S 40 in. LCD TV Hello, I have a proscan 40lc45s that has sound but no picture (black screen). Does anyone have any ideas? I have checked for the obvious blown caps and saw nothing.
This TV has a well known problem with the back light inverter board.
See
https://www.youtube.com/watch?v=cDAwGTP3RLY
Hope this helps!
SOURCE: Proscan 40' 40LC45S has a high pitched hum when it
Same problem here, there is a high-pitched sound in standby. As soon as the light turns blue and the TV is on it's gone. I actually exchanged this TV three times at Best Buy but all the models made the same buzz in standby. I was told that it's normal and in the store you can't hear it since there is too much humming from other TVs around. The power is transformed down to a minimum, just for the remote controls, internal clock etc. and this causes the buzz, like when you dim your lights at home. I hooked it up to a surge-protector for clean power and just switch it off over night. During the day it's hard to hear anyway. - Again, since this is my third (!) Proscan 40' exchange I can definitely say that this is normal for this model. I was just surprised that nobody mentioned the same problem so far on the Best Buy reviews.
SOURCE: I need a remote code for my proscan 40
Try to codes for RCA. RCA and Proscan use the same code. It works for me for AT&T U-verse.
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Yeah, I am thinking the same thing. I attempted to illuminate the screen with a high powered flashlight and only saw static on the screen while hearing good audio. I hate to purchase a power supply on just a hunch.
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