Question about Hitachi 60FX20B 60" Rear Projection Television

Hitachi 60FX20B The TV turned off by itself. When trying to turn it back on, no luck. Unplugged for a few minutes. Plugged back in and turned on, Power supply game on but no picture. The on light is the only thing that shows any power. Checked any fuses i could find on the first power board. What can i check on the convergience board, bad soldier joint also? Thanks, Chris

Chris Gomez Jul 06, 2006

Should I be looking for a broken soldier joint or another type of malfunction?

Thanks,

Chris

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1 Answer

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Master
3,130 Answers

If you hear the unit comming on and theres no sound or Picture, then theres a fault in the horizontal sweep/HI Voltage circuit. This should not be fooled with unless you know the safty issues with HI voltage as theres voltage in these sets even after they are unplgged for a while. Good Luck

Posted on Jul 06, 2006

Anonymous Jul 06, 2006

It could be a solder connection BUT your gonna need to measure the voltage to see if the power regulators working and see if the units going into HI voltage shutdown. This is done by mneasureing the x ray protection signal feeding back into the sweep drive IC. The horizontal drive transformer or flyback transformer may have cold solder connections on it too.

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