Proscan 40" TV from Best BUy - screen freeze, screen goes blank

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: My proscan 32LB30QD new tv does not have sound

the fuse to the audio compartment might be blown

SOURCE: Proscan 32'' VGA port; TV says not supported on VGA input

Sounds like your resolution on your computer is set too high for your tv to accept. Try putting your computer resolution down to 1024x768 or lower and see if that works.

SOURCE: Have 40 inch Proscan TV. Am trying to program my

RCA code 10019 worked for me

SOURCE: Proscan 40" LCD-Screen Freezes

They actually state that you have to unplug it and replug it in to fix this problem in the owners manual so it's not just a isolated issue. I to have this problem daily now and this is the 2nd set after returning the first one due to same reason.