Question about Toshiba 50HX81 50" Rear Projection Television

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Toshiba tz50v51 relay clicks on when pulled in but 5 volts are missing from emmpom

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Check for a short to ground on that line if you have not, the most common issue is convergence which can cause the set not to come on also, look at all the pico fuses in the power supply--two go to the convergence chips, if you get desperate and the fuses are ok unsolder both chips (stk-392-110) and see if set powers up ----if it does and the fuses are good both chips and one of the resistors around them is what is causing the problem.

Posted on Dec 04, 2012

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My tz50v51 shows a double picture


replace the 2 convergence ic stk392-110 they are located on the same boad with the divider
the transfromer that supplies the pic tubes. they cost about $20. each have any other questions my ermail is lakehickoryelectronics@yahoo.com

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Toshiba TZ50V51 fix blinking red light


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yes thats the correct link. That manual will make it easy to trouble shoot your toshibas power supply problem

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Toshiba MD20FP3 not turning on


Is a good thing the main fuse is not open,your problem is in the power supply ,as I understand you have no indication of power(no lights,No clicks)The 5 volts that power the microprocessor might be missing,this 5 volts usually come from a regulator,this regulator should have 12 volts in one side and the 5 volts in the other,the 12 volts come from the secondary of a transformer and it has its own fusible resistor,if the resistor is open is because the regulator is shorted and it need to be replaced.This is a good place to check.Be careful when checking this parts.If you are not too familiar with tv service seek the assistance of a servicer,it should not be too expensive.

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