Question about RCA P52937 52" Rear Projection Television

2 Answers

Rca p52927 chassis ptk 195 wont power up all of a sudden

I was using the unit and decided to move it from one side of the room to the other.  I unplugged the unit (not sure if powered off), moved it, plugged it in and it doesn't power on. Help!!!

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  • racinrob27 Oct 31, 2007

    I took it to a repair shop and they have quoted me $300 for a power supply and transistor- is that the norm?

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Any TV can have a bad solder connection problem after
moving.Unfortunately,the fix may not be easy.
1) pull light box out of cabinet or hire someone to do it
2) slide/tilt for servicing main PC board
3) examine solder connects with magnifier--solder any/all
    bad connects,esp around microprocessor
4) Check horiz output xistor =if ok,re-assemble,test
    If shorted,replace with first quality transistor and solder
    any/all suspect connects in horiz drive circuit,then assemble
  
  Let me know......T. 

Posted on Oct 24, 2007

  • Vista Electronics Oct 24, 2007

    If you need flyback or transistor part numbers,please provide

    service number from back of set....T.

  • Vista Electronics Oct 31, 2007

    Shop repair for 300.00 is normal.......T.

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Ctc chassis with the 195 chassis were famous for flyback transformer shorting and taking out the horizontal output transistor also.

Posted on Oct 24, 2007

  • g w Oct 31, 2007

    yes the price is with in reason if parts are also included.

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does the set have a chassis number on the rear---small label with something like ptk-195?

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The model indicated does not use the conventional chips or a kit--look and see if on the back is a chassis number like ptk-195 etc.

Double check and confirm actual model number and I will assist.

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The model indicated does not use the conventional chips or a kit--look and see if on the back is a chassis number like ptk-195 etc.

Double check and confirm actual model number and I will assist.

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Model indicated usually NEVER has convergence problems.

Look on back for "chassis" number, is it a PTK 195 chassis?

If it is I can tell you what is likely wrong and it is a do it yourself repair.

BEFORE YOU RATE THIS SOLUTION LET ME KNOW IF 195 CHASSIS.

SD TECH

Jul 27, 2011 | RCA P52937 52" Rear Projection Television

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Attention, SD TECH I read your 8/25/10 post on


This model does not use STK CHIPS. Look on back of set where model number is---what is PTK number---ie: PTK 169, OR PTK 195

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Where is the convergence power supply located on a RCA P52960?


TAKE A CLOSE LOOK AT THE LABEL ON THE BACK OF THE SET WITH THE MODEL NUMBER, IS IT MARKED PTK195?

THE PTK 195 uses a power supply mounted above the main boards and is about 10 inches wide and 4 inches deep.

It is very common on this model for one of the ten diodes to be shorted; confirm it is a 195 chassis and I will tell you how to locate the two diodes that fail. They supply voltage to the convergence circuit and I have seen dozens where one of them shorts.


Let me know what you find; is it a 195 chassis?


If this information has helped you rate this solution as I do this here for free, rate it "very helpful".

If it is a 195 chassis let me know and I will pinpoint the location of the two diodes and tell you how to check them.


REGARDS, SD TECH

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If the set is a ptk 195 chassis,check your menu in screens to see if the adj. projection tv is there,if not the convergence power supply is bad.

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RCA 52" Rear Projection P52930BL


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

Oct 04, 2007 | RCA P52930BL 52" Rear Projection...

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