Question about RCA D32F750T TV
Had to replace shorted flyback. After installation the picture now sometimes (not all) has many noise lines through it in horizontal bands, and menu words are noisy and jitter. Sometimes its ok for a while then other times its awefully bad. Happens on all inputs.
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Posted on Jan 02, 2017
SOURCE: RCA D32F750T TV
Did you adjust the two controls on the new flyback? The top one is almost always the focus control and the bottom is the G2/screen control (brightness) If you adjust the G2 do it until the picture looks normal, too high and you will get retrace lines through the picture.
Posted on Jan 26, 2007
SOURCE: RCA pix tearing horizontal lines
Get an ESR meter and check all the electrolytic capacitors in the set! I am sure you will find many decoupler and coupling capacitors that are on the edge or too high in ESR.
Posted on May 25, 2008
Absolutely right about the transistor and also check any adjacent resistors to the transformer and to the line output transistor. Good luck.
Posted on Oct 03, 2008
hi there, seems you're encountering horizontal width suddenly adjusted by itself. i recommend you unscrew the back casing, clean the crt board a bit and look for the capacitor on the secondary output of the transformer voltage chopper. it has this diode series with the output and filtered with electrolytic capacitor. if you notice bulgy appearance replace it with same type and farrad rate. most of the times it is unnoticeable by just physical checking. Some are leaky and can be determined using capacitance tester. The supply of the Vertical IC is not stable cause by this capacitor. replacing most of the capacitor wouldn't cost you much. hope this helps, please rate and vote
Posted on Mar 26, 2011
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