An expert who has achieved level 2 by getting 100 points
An expert who has answered 20 questions.
An expert that has over 10 points.
An expert whose answer got voted for 2 times.
Re: RCA P60920BL 60 in. Rear Projection Television Fuse
I am assuming that you preplaced the flyback and horizontal out together. Even if you did, was it blowing fuses before? Usually with this chassis, the horizontal will not blow the fuse. It will just keep the swith mode power supply from operating. Double check and make sure you didn't have a soldered blob get away from the iron and "splash" somewhere on the board
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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.
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.
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.