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Re: tv will not come on
There is a good chance you a capacitor in the power supply that is not charging the way it should. It must be replaced. If you have not done any trouble shooting in TV's you'll have to take it to a service center. Not a major repair.
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check for any cold solder on the high voltage section of your tv A high voltage section is located at the power supply section, this is where the power cord is connected.resolder them,the horizontal section it is where the plyback transformer is located resolder them and the CRT board this is the boad that is attatched to the picture tube...good luck
Here's my suggestion , unhook all the external components to the TV
and leave the TV unplugged for more than a few minutes (a
day/overnight). The next day plug the TV into the wall outlet (not the
powerstrip) without anything hooked up to it, and turn it on. See if it
comes on. Sometimes unplugging for a few minutes/hours is not long
enough for it to reset itself.
Hi, Symptom shows Lamp is weak in result and causing restart of TV again and again. Your TV requires new lamp as per following part number... A1085447A* LAMP BLOCK ASSY XL-2200U It is available in Sony Accessories Store for $200 and replacement procedure is written in instruction manual of TV.
Always buy Sony original lamp for TV and avoid aftermarket / cheap lamp for TV safety.
I had the same problem. Can't remember where, but I had to re-solder some joints. If you look very closely to the bottom of the motherboard, you might be able to see a cracked solder joint, otherwise carefully touch each one to fix it. Easy fix and the tv's been running flawless for going on 3 years now.
Be careful to not touch anything on the high voltage side with your hands. Even with it unplugged.
Takes about 5 minutes for picture to appear... Then every one to two minutes the picture disappears. It comes back on for 1 - 2 minutes then repeats. When set if first turned on, the stereo/stand-by light (red) flashes on/off until just before picture first appears
.if your tv is very old than it might be due to crt getting weak
crt base loose
loose contact in power supply