Question about Televison & Video
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Posted on Jan 02, 2017
SOURCE: Tv flickers when first turned on
I have encountered this exact same problem with 2 Maxent MX-42X3 Plasma TV's. I found that C766, a 220uF, 16V surface-mount electrolytic capacitor on the main board is bad. This capacitor is located just to the left of the green multi-fin processor heat sink. This capacitor will test good using capacitor meter or an ESR meter, but if you spray it with Freeze-It with the power on, you will find out that this is the problem! To get it out, I found I had to remove the little 10uF 16V surface-mount capacitor just to the left of it. I then replaced these 2 capacitors with regular (radial), high-temperature, low-ESR capacitors. I cut the leads short, and bent the ends out just a little bit so you can solder them back onto the surface-mount pads. You can get these parts from Digi-Key Corp. I used Digi-Key part # P12383-ND ($0.32) for the 220uF capacitor, and P11212-ND ($0.30) for the 10uF capacitor. Both of these capacitors are rated for 25V and high temperature, so they won't go bad again. You can purchase surface mount capacitors there too, but I find them very difficult to solder back into those locations due to the tight placement of other capacitors in that area. Be careful, and good luck!
Posted on Nov 16, 2009
SOURCE: Currently the TV will not
i suspect it is capacitors on the power board that are failing on it. I am not familiar with this particular model. But i would say that is what it is, you can usually tell which ones are bad because they will be bulging at the top
good capacitors look like this below
Posted on Mar 10, 2011
Testimonial: "Thank you very much for the info. I really hope it is only a capacitor issue! Thanks again, Shad"
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