Question about Televison & Video
The conversion chip is powered by seperate power from the transfomer + -- volts
here is I believe what your conversion chip # is stk392-110t and here is the NTE specs.
you can use the specs. to check voltage pins, ect.. ,if that is the numbers.
to see if the chip is faulty then check resistors, caps , and voltage to the chip , a pr or fuse may have blown for the - and + voltage to the chip. if it is bad it would be wise to replace the vertical deflection chip as well ( hopefully yours is still ok) , because of the vertical control in the conversion chip.
you can also check for the power on the wires from the CRT board that comes from the flyback transformer ( NOT the HIGH VOLTAGE wire ).
also after you have unplugged the tv and dicharged the flyback to the chassi ground you should check the components on the crt ( cathode ray tube ) board for any bad measurements of the components.
Posted on Oct 14, 2008
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Posted on Jan 02, 2017
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