Question about Televison & Video
My Sanyo t.v. model number DS25320 just stopped working. The screen does not come on, but there is a high pitch sound that comes from the T.V. while it is plugged in. What suggestion do you have?
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Posted on Jan 02, 2017
SOURCE: Sanyo DS31520 went dead
If still under warranty or if you have no electronic repair experience you should take the set back to the shop or to a repair person. Some of the solutions described below can be dangerous, TV's are very hazardous to service. Even when plugged out, TV's can store very high voltages. Squealing noise is from the power supply teling you that there is an overload condiction. The overload is shifting the operational frequency of the power supply into upper audio hearing range. Check the diodes and caps in the supply circuit and the active components in the deflection circuit. also resolder the LOPT, h-output, h-driver, and h-driver transformer. Good luck
Posted on Jun 21, 2006
Yes,it can be repaired,sometimes for no reason components fail and they need to be replaced,if you are familiar with tv service you can check the horizontal output transistor,it might have gone bad(shorted out)and is all is going to take to get the set back running,sometimes the output trasformer damages the transistor and both have to be replaced,first just change the transistor and if it blows up again then replace the transformer,if you are not too familiar with servicing a tv be safe and call for assistance from a servicer,if you take the set to them it should be expensive.Let Us know how it goes or if you need more information.
Posted on Nov 08, 2006
SOURCE: High pitched hum/buzz
By high-pitched, you mean it is not that same frequency as when it's cooking? Is the tone near or the same as the beep you hear when you press a key? Please post a little more information so we can help better.
Posted on Nov 28, 2006
check for high voltage s3ection of your TV. A Flyback transformer is defective especially in the high voltage cale of your flyback....
Posted on Oct 20, 2007
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