Question about Hitachi 53FDX20B 53" Rear Projection Television

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No picture, no sound

I have a 53FDX20B, the remote turns on the little red indicator light but I have no picture and no sound. I pulled the power supply card and both fuses on the card are OK. Any ideas on repair or troubleshooting steps I can take to narrow in on the problem? I have digital and analog multimeters but no scope or high voltage probes

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Re: no picture, no sound

First thing to check, would be that there is no oily liquid or residue around or on the printed circuit boards underneath where the picture tubes are. If there is, one or more of the tubes are leaking out the coolant and the seals will need to be repaired as well as the board, if it is not beyond repair. If that does not work, check out the power supply voltage . Check to see if the horizontal output transistor is shorted, or that the convergence Ic's are not causing the set not to start up. Good Luck

Posted on Jul 15, 2007

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Hitachi Model No. 53FDX20B - picture has gone out. power light is on but no picture or sound

Replace Both of the STK ICs they will have Part Number on them,example STK392-570
Mats Electronics has ICs 1-800-628-1118

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The TV has no picture or sound but the red light on the front comes on?

The red light on the front is part of the system control (computer) in your television it indicates likely your power supply and computer are functioning. There are a multitude of problems that can cause no picture and no sound. Power supply troubles are most likely. The system control will have it's own little power supply which is always on so it can listen to the front panel or your remote. It will continue to operate when the heavy duty power supply might not. This suggests a shop repair would be in order. House calls can't fix something like this unless they are VERY lucky and find something obvious. You will still pay for the house call even if they can't fix it.

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It powers up but no picture? In my experience with Hitachi TV's this has been an issue with the convergence IC's failing. You will need to have a technician replace those if needed.

Jul 23, 2009 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

TV has sound but no picture

It is possible one of the internal fuses blew out.
It could be a bad horizontal outut transistor.
It could be a bad secondary of the power supply went bad
And many other things.
If it's just a fuse, it won't cost much, but a lot of them do not look like you would expect a fuse to look like.It might be a little yellow, green, or gray rectangualar box shaped part. :D

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1 Answer

Lost picture

sounds like video card failure mode, a technically adroit person?

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Hitachi Projection TV power problems

Good Day,
If TV wont turn on check Q912, Q913 & I901. If no click of relay Check Q003, als chech the Convergence IC's.
Good Luck, big IRISH.

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1 Answer

No picture no sound

There are lights on the board about 8 you should look at which comes on and which stay on this by hitachi standards tells you what is wrong. Most of the time its convergence amps bad.

Sep 14, 2007 | Hitachi 53FDX20B 53" Rear Projection...

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