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Re: Sony Trinotron TV:
You will have to buy a service manual to fix your problem. Click HERE to buy a service manual.Once you are at the site just buy the service manual from that list.If you want there are diagrams given there you can also check that out.
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U check the power source?Take the tv aparts,check or replaced the power fuse,might get lucky.Not,than sorry,this tv can't be repair,without replacing electronic's componnents parts.Hire the same shop to do the repair.Ur tv power ICS inverter are dead.
that problem is very common on a sony tv,the sound IF and video IF of your tv is bad..video and sound IF is located near the tuner section of your tv.some sony model,the IF section and TUNER section are packed in one enclosure. it your tv sound IF is packed together with the tuner,then replace the tuner with a new one.some are packed separately so you need to replace just the IF module only..you can also try to adjust the IF by using a plastic smsll screw driver adjust the IF clock wise or counter clock wise untill you achive a good reception do it with the tv power is on..be carefull with the high voltage...
There maybe a switch in the back of your tv.... behind the cover where you LCD lamp goes.... make sure you have put the cover back on correctly... there may be a blue switch and it is touchy.... try that and if that is not the problem .... it may be time to replace your tv lamp. :) It is not hard find your band on the internett and have the mail it to you....... it is easy to install. :)
Will the TV turn on using the power button on top of the TV itself?If not,open the back of the TV,and look at the can shaped items called capacitors on the circuit boards.If any of them have the tops,or bottoms bulged out,they need to be replaced.This should get it working again.I hope this helps.If you have any questions,please let me know.Thank You very much!
I really have to say there is no miracle cure for TV's I have 20years of experience in fixing TV's I don't suggest for you to try to fix this as TV's run on high voltage and you could kill yourself.
If you really cannot find a tech to check it for you the only thing you can try is to check for a broken fuse.
You Must Take Great Caution.
If you are a person that like to take things apart you may try to take the back off . Start by disconnect the power cable and follow the main power cable inside , normally it goes where the main switch is located and there you should find a Time Fuse normally the value is around 2.5 amps T for time it should say on circuit board & on fuse.Check for a faulty fuse.If faulty replace with the same type fuse and before you plug it in put back all covers than you may try to put on TV.
If fuse is good than fit back cover and take to a professional.
Check soldered in fuse R607 in power supply circuit =
If open, replace it and bad converter xistors ( 2SC4834)
Next, replace shorted horizontal output transistor w/ first Quality.
Solder any / all bad connects,esp.horiz drive to base of horiz.
o / p xistor. Soldering is critical or it will blow up again......
The most common problem with TV was the failure of the Horizontal Output Transistor, this will also damage 2 transistors in the power supply and a resistor in the power supply also. (From memory): Horizontal Output location # Q501, 2 power supply transistors Locations Q601, Q602, and resistor Location R607. Also solder the Horizontal drive transformer, you can find it by following the circuit board from the base of the Horizontal output. Some models used an IC instead of the 2 transistors in the powersupply, it will have six legs and check like 2 transistors. Good Luck.