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Re: 52" rca model #p52930bl
The plastic screen itself never gets dirty on the inside, unless a spider has taken up residence nearby. What you are likely experiencing is dust built up on the CRT lens and mirror - which would cause the picture to look dull with low contrast and brightness. If that is the case, you may find on your model that the screen either pulls out or that there is a wood piece at the bottom that is hiding some screws or maybe the speaker grill needs to be removed to expose said screws. Be gentle cleaning the mirror, as it is surface coated and could be scratched easily.
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hello my name is rico i work on tvs sometimes. you need to remove trhe screws around the back of screen and the front of the tv, need to remove front panel screws around. please feel free call me if you needd more help with this problem. my phone number is 602-810-7149
2 types. If wooden top rail of screen surround: remove end screws of top rail by removing caps over screws on upper front sides. Remove the two screws. Remove top wooden screen bezel piece. Now pull up and out screens.
If sceen surround is plastic one-piece all-around: remove speaker grill board. Remove screws along lower front of screen bezel. Pull bottom of screen bezel out a 1/2 inch. Lift up on screen bezel to remove entire screen assembly.
Hi, much easier to access the front screens (there are 2 sandwiched together) by removing the top back cover, be prepared for lots of screws and when you get down to the last 2-3 screws get some help, on the inside of the back cover is a large mirror, some are made of mylar, do NOT clean or even touch a mylar mirror, the others are made of real glass and the back will be much heavier than you think (and very expensive if you break it)once the back is removed you should have access to the bug, good luck, video-tek
check conector j19105 to be seated properly.
if this dosent fix it
look in the uper right hand side of light box in the back of the set
you will see the convergence Power supply, remove and replace it.
save your self time and just replace the board.
The beeping noise is usually related to the Horizontal out put transistor or flyback being faulty or one of the coils are loose near the flyback. If you remove the rear cover without touching anything can you tell if the beeping is coming from the large transformer with the red wire coming out of the top or is it coming from a black transistor on a aluminum heat sink.
You can adj. from the front panel of the set using the channel and vol. buttons,if the set you have has a ptk 195 chassis,check and make sure you have adj. projection tv in screens of the menu,in not the convergence power supply has failed,replace the reg on the board,part number is 215530
First thing you want to do with this set would be to unplug it for at least a 24 hour period. if that does not work, the remote sebsor could be defective. if you want to just replace the sensor and not trouble shoot the set, it should be located behind a plasit cover in the front of the set, or located inside the reflection area of the TV set. Differant models are located at differant positions. If you have no electronic experience, play it safe and call in a trained tech to assist you in this repair. Good Luck
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