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Re: rca mod. #P60920BL just beeping and will not turn on
Yes the flyback is one of the most likely components to fail on that chassis , and they are very easy to replace. You can get a new replacement at the following link and they provide free on line tech support with instant messageing to help you do the repair. You need flyback number 239111
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The PS50700 uses the 195 series chassis. The most common cause of the set not starting up is a shorted flyback (high voltage) transformer. Sometimes a shorted flyback will also cause the horizontal output transistor to short too. These parts need to be tested and/or replaced by a tech familiar with the RCA 195 chassis.
This is usually the flyback transformer (IHVT-integrated high voltage transformer) and the HOT( horizontal output transistor) The transistor will read shorted, with a multimeter, if it is bad. It is mounted to a heatsink straight back from the flyback. It may have a metal clip that holds it tight to the heatsink.
It is a pretty easy fix if you can solder.
While you have the board out, check for any discolored resistors and replace those as they will likely fail before long and cause more problems. Also check with a bright light and a magnifier for cracked solder joints and resolder any that you find.
This is a chassis PTK195 and acommon fault with these sets, that causes the symptom you describe, is the flyback transformer goes bad.
If you're at all familiar with electronic repair you could start checking there (and horizontal output transistor shorts). If not have an RCA approved warrany repairer give you an estimate/service call.
Note: the good thing about these sets is the chassis is very common and easily removed for service (without bringing in the whole set.) .
Usual cost to repair flyback/ dead set symptoms $200-$350.
Typically, the driver circuit is affected when the flyback transformer "dies". The most common device that fails with it is the deflection transistor/driver and associated components. Hope this helps...accordianman
Right in front of the flyback, on a metal heatsink, you will see a transistor. This is the Horizontal out transistor ans is probably shorted. Look at number on the front of the transistor for ordering. It will be 2SC5148, 2SD1878, or something like that.
Make sure the unit is unplugged while working on it
Beeping in that model usually refers to the flyback needing to be replaced or the Horizontal output transistor. Flyback is most likely the cause as the HOTransistor will usually blow a fuse causeing the set to be dead.
Here are some numbers to call for Flyback Replacement
you will need RCA chassis# PTK195s16p - flyback number1541938b.
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first tap the set to see if it comes on, if it does not then your power supply circuit needs to be resolder take it to a tech to do that for you, if you are not a tech.if it does not then you are having a serious problem that is to say the following could be defective regulator in the power supply microchip in the standby power supply.high voltage protection circuit.flyback transformer,and all associated components for the above.good luck.