Question about Hitachi 43FDX20B 43" Rear Projection Television

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Set comes on by itself sometimes for short intervals and occasionally for hours.

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This can happen for a few different reasons. The first being the most popular, is that something around the set or in the same general area is giving off a similar signal that the on command gives on the remote. This actually happens from time to time at my home. Also it could be because a button is stuck or sticking on the remote or the front of the set. good luck

Posted on May 07, 2010

  • rube_render Jun 15, 2011

    Keep the $12 bucks.

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Francis Francis X1. Why does it work sometimes and sometimes heater trips GFCI?


take it to an appliance repair shop to have it checked out
the trip is working but if you ignore the problem you may get electrocuted

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We have the RCA HD52w59 projection tv. The tv shuts itself off at different intervals. It takes approximately 1 minute to be able to turn the power button back on, however, I have to do that many times...


A problem in the deflection board. Could be a Cap. Resoldering the deflection board may take care of the problem. You need to call a TV man to do this kind of work.

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WWW.AAATVSERVICE.COM

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Lexsor 32" widescreen LCD TV


sounds like av panel needs replacing................
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Mar 26, 2011 | Televison & Video

1 Answer

Why are there 6 hour 8 hour an 10 hour timers to defrost a self defrosting refrigerator


Good day,
The decision as what the time interval of a timer should be is determined by engineers and field tests.
There is more to the timer than interval. Timers are usually listed as 8 hours 21 minutes, 8 hours 30 minutes ect. The minutes is used to designate the time the control stays in defrost.
A general rule is if the interval is longer, the minutes in the defrost cycle is extended to compensate.
Other factors come into play such as the wattage of the defrost heaters and the defrost thermostat temperature.

The trend today, with timers is to extend the interval to make the machine more energy efficient.

There is never an issue to defrost more often then the original, but it will run the heaters more often, and cause increased operating cost and shortened heater life.
The short and long of it is you can use a 6 hour timer in any machine if the timer motor wiring is the same and the duration is long enough, but with the costs listed above.

Jul 22, 2010 | Jenn-Air Refrigerators

1 Answer

I want a programmable timer that can, eg, switch on a single phase electric motor for 10 seconds every hour. It may be 9 secs or 11 secs.


You need a programmable interval timer.

http://waterheatertimer.org/Intermatic-timers-and-manuals.html#ET70
Intermatic and Tork make digital timers with interval settings that can be set for specific short-duration with 1 minute minimum.
(Or set to pulse bell ringing with 1-127 seconds.
10 minutes is 600 seconds)
For example ET70115 single-channel timer.
The timer would be set for 24-hour operation, and then programmed for Pulse, and then set timer with 24 programs, with 1 program for each hour.

Mechanical cycle timers from Intermatic:
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#cycle
1) Talento 1 hour cycle timer/ each tripper represents 1.25 minutes
2) Model C8835/ each tripper represents 15 seconds.
To operate these timers certain hours of the day, add another timer in-line.
The in-line timer could be digital, but remember digital timers are not protected from power surge and tend to have more problems, and do not have replaceable clock motors and trippers.

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1 Answer

TV Turns Off Automatically While Watching


Stop trying to turn on the set. You are causing more damage. The hissing sound you are hearing is either a High Voltage Transformer on the SMPS (Switched Mode Power Supply) indicating a short somewhere in the set or some capicitors that have shorted out. Also there can be a CRT that is leaking cooling fluid onto the Main bd or the Power/Deflection bd or both bds. Have a trained Samsung tech troubleshoot the set.

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1 Answer

Fan or light goes on sporadically by itself.


It could be that a neighbor has a ceiling fan with the same CODE that yours is set at. It does actually occur.
Try setting the REMOTE(Transmitter) AND the RECEIVER, located tucked in among the electrical wiring inside the CANOPY which is also called the 'Hanger Bracket', to a different but SAME CODE for each device. The RECEIVER, which will have four 'dip switches', as does the REMOTE, will be a small rectangular box with a short antenna from one end.
Good luck. :)

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1 Answer

Vizio shuts itself off


I have found that turning off the power for awhile will work as a temp fix for a couple of days and then just repeat the process.

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2 Answers

Black has turned blue and shutting off


That usually means the x-ray protect circuit was triggered. The set is going into protect shutdown for some reason. It may be a valid trigger to a lame problem or a fault in the detection circuit itself. I would hang a scope on there and just watch to see if there is a strange movement in voltage values, and if so, troubleshoot it from there. The blue picture is a result of a convergence problem. If you don't know much abou TV repair, I would suggest taking it to a Toshiba authorized servicer for proper diagnosis.

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