Question about Standard (CRT) Televisions
WHEN COLD SMPS TRIPS, THEN AFTER A WHILE SWITCHES ON. USES A MC 44608P40 IC. IN THE PRIMARY SIDE.
SOURCE: Sanyo ST-21G1 dead set
There should be a small valued cap in the primary side (22ufd?) at 250V. Check that. Also, look for other small caps int he range of 2.2ufd with 200V ratings in the same general area.
Posted on May 07, 2008
Ur tv it is taken aparts wright now?Yes.Plug in ur tv to see the problems and take the hard end handle of the screw driver and taps around the vertical deflection ic for cold soldering joints,will require resoldering the ic,if the vertical hold flickers or bounced back to normal.No bounce back vertical hold check all the sorrouding capacitors transistors resistors for dead components parts to be replaced,if all the sorrouding parts are good,than that vertical deflection ic it self it is dead and require replacing.
Posted on May 09, 2011
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