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We understand that your problem is: hello, I have

We understand that your problem is: hello, I have a RCA 52 " (R52WH74) chasis (ITC222A) that wont power on .. like other posts it blinks 3 times and never comes on I have isolated the problem to power board but need pointers on how to check the the Flyback trans FYI I have already checked the continuity for 400ma fuses, cp150 and visually inspected all other capacitors...... also is there any other borad that could cause these problems?

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Shuttle83
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SOURCE: RCA R52WH74 turns off 3 times

Hello Kira-chan,

You are going to have to take those capacitors out of the Tv and check them on a capacitance tester. Some digital multi-meters have them, but I would suggest using the LC102 by Sencore That way you can check the ESR, and the dielectric absorption of the capacitor. It is my suspicion that these caps are bad, but should be checked before replacing them.

In addition check the BLUE and RED CRTs for cracks around the neck oy the tube, BE CAREFUL.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Posted on Jul 27, 2009

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R52WH74 shuts off


The deflection board needs replacement. You would require the ITC222a chassis deflection board which is available at the following link
http://tvrepairworld.com/rca_crt_projection_tvcircuit_boards/rca_rear_projection_tv_deflection_power_boards

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