Magnavox 37mf231d will not turn on, only have steady flashing led light-continuous

Fault with main board. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

Hello, I think it either had a bad back light board or one of the florescent tubes in the display has gone bad. As these sets get older, I see more of the florescent tubes going bad. I think there are 9 in that set, and all it takes is one of them to go out to cause the set to shut down. You may also look for a bad connection on the transformers on the back light board.....thanks, let me know

hi make sure the lamp door is securely fitted has there is a safety switch, thanks

shaun

The power supply needs repaired NOW. I suggest you do not play it---unplug it ---and take it in for service. If you continue to play it you will price yourself into a new tv.

Since the TV is still receiving power, the problem is going to be with the TV's mainboard.  After you unplugged the TV and plugged it back in, you said the power light went out again, so I assume the standby light wasn't flashing again?  The flashing standby light is indicating an error code so my suggestion is to contact Sony for service options regardless if there is a warranty or not because service is the only solution to this situation.  Don't forget to provide them the error code or 4 flashes repeating.

Also changed swollen C2074 and C2081 and it now works perfectly! a bit daunting for a novice like myself but with a steady hand and decent 'put it back the way you took it apart' skills, all went well!

Circuit board inside the TV was loose!!

set the time on your tv and turn off the timer, sleep and wake funtions.

that depends on the value of the television and the cost of replacing the power supply and connections.
Most likely you have a short in your power supply or other connections causing the tv to protect itself by shutting down. You can check with our Repair Service lookup icon for a repair service near you.
Before you call them you may try unplugging your unit for 30 minutes or so and plugging it back in.

Calm down Calm down. The problem is quite simple. You need to change one maybe two capacitors. Upon removing back cover. Look to the left, after removing foil tape, remove screws and flipover the board. The first cap to go down may have abulge on top or black tar oozing out the top. It is a 25volt 2200mf cap gone bad. Replace it. Second, sometimes and just sometimes next to thatone is 35volt 1200mf cap goes bad......remember just sometimes. You may have to replace it as well.