Repair of Power Supply Part

check the LCD bulb it is located at the top and bottom of the LCD monitor maybe it is defective or maybe the power supply of the bulb is also defective.Replace the bulb or the power supply you can use the power supply of a cathode light that is usually use in motor cycles

Hi:
This may be due to bad capacitors in the power supply circuit, Have the power supply checked for leaky or puffed up tops on capacitors in the PS.

Hi
This TV should still be under warranty. Most new TV's have electronics warranty of 1 year.

Power supply or fuse is shot most likely. You can use a voltmeter and test power coming from power supply to main board. Some units use a high voltage transformer instead of a power supply. You can get parts at tigerdirect.com

Did they put in a used one, more likely? Did you getto see the old one, look for bad capacitors.
http://en.wikipedia.org/wiki/Capacitor_plague

I had the exact same problem with the Sony KDL46XBR4. The problem started 11 months after I purchased the TV (Dec 2007). Luckily I placed the call to Sony just before the 1 year warranty expired and they replaced the entire front panel which is basically the whole TV except for the stand and the plastic frame. Last month the same issue started happening again (5 months since the repair). I called Sony and they say they have a 90 day warranty on the replacement part so I would need to pay out of my own pocket to first have the problem diagnosed (it's the EXACT same problem!) and then pay to have the repair done since the warranty has expired. I asked how much the front panel costs and it's $1,400! I paid $2,100 for the TV when I purchased it. Interestingly, at the time that part was back-ordered.....hmmmm, I wonder why??? Perhaps a recall is warranted here (no pun intended). Needless to say, I have sworn off Sony products due to their lack of support for this issue.

Diagram of SANSUI LCT37SD.
Power supply default.

If you purchased the warrenty extra above the cost of the tv Sears will allow you to purchase another extended warrenty. Contact them and let them know your extended warrenty ran out and you would like to buy another. I would leave out the part about the tv being broken.

If your TV is not turning ON, the power supply is defective. It's a bit hard to find service parts for these TVs, the only way to fix the power supply is to replace the defective parts.
If you need more info let me know or you can write to [email protected]

This is a very common problem with RCA tV sets. But unfortanatly, RCA is no longer made in this country or even owned by RCA anymore. They are a Canadian company called Thompson Corp and could not give two hoots about any problems with TV sets sold here in america. I say this from experience and try to contact them and file a complaint. ther customer service is rude and basicly calls us idiots! Alot of class action suits are pending or have been dropped as for the amount of sets they company have sold,They have attorneys working for them and delaying the cases. It is really the fault of the US Judges that are total morons about these things and try to go by un written laws. They dont have a clue as most of the US goverment does not. Your problem is not a power supply problem, But a high voltage transformer and a horizontal output transistor, and the reason why the estimate was so high, is because the tranformer is no longer available. Thats why the estimate is so high. Because who in there right mind would spend so much on a set as this. You can buy a 32" RCA(BUT I WOULD NOT BUY TRASH)At Wally World for less the $250.00 bucks! I no longer accept RCA TVs in for repair as replacement parts are so much money and im not proud to say I work on RCA TV sets. Total garbage sets!!