Question about Hitachi 70SBX74B 70" Rear Projection Television

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Set will not turn on. I replaced the fuse and plugged it in. Two green lights came on then the rest of the green lights came on. After a few seconds they faded and a red flashing light came on.

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On this model there is a common failure with some capacitors and fuses. Its a simple fix if you know which parts to use/avoid and how to do the repair. You can get complete instrucitons and parts for your model from www.TvRepairKits.com . Their kits include step by step color instruction guide as well as the correct parts to fix this issue.

Posted on Apr 18, 2010

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Panasonic TH37PX80B tv won t turn on


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Apr 02, 2014 | Televison & Video

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I have a Mitsubishi Model WS-65511 the green light on the front was flahing (would not stop) I replaced the 7 Capacitors as was suggested. The light flashed for a while then stopped and turned green


I think I advised you before (on this page you will find a "make a comment button" which allows follow up questions and answers without posting another question.

Green power light now comes on and goes out in few seconds:

On front of set (not the remote) press and hold when that happens both the menu and input buttons for at least 5 seconds and release both.

Power light will blink a 2 digit code like 2 blinks, 2 blinks, pause and repeat that several times---this is an error code---let me know what code you find.

Note: if you have unplugged the set it clears the error codes and you have to plug back and try to turn set on--let it fail and repeat the self check.

SD TECH

Apr 22, 2012 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Mitsubishi 65" WS-65869 Blinking Green Light 3-2 pattern,


two ideas:

Make sure you tested the pico fuses inside the unit with the caps==two or three of them.


Also from front of set behind speaker grill unplug both plugs that go up to front keyboard--set will still work with remote===if set functions now then the reset micro switch is bad/damaged.

Mar 12, 2012 | Mitsubishi WS-65869 65" Rear Projection...

1 Answer

Worked fine this morning. Unplugged it to rearrange. Plugged it back in and the green "timer" light flashes and it will not turn on. Any ideas? Thanks, Bill


bill! any time that you have power turn on issues, you should make sure that you have the proper ac supply voltage at the wall outlet. plug in a lamp at the same outlet as the tv set!. if it works unplug the tv set for a few minutes to attempt a reset of a possibly bad turn on relay or power circuit. try turning on the set by the power button on the front panel. then try using the power on the remote control. each time listen for a click of the power relay and static build up for the high voltage circuits. if you have niether! unplug the set and open up the back bottom panel and check for a open fuse any where on the the circuit board. now bill put on some rubber dish washing gloves before you attempt to replace any fuses upon reaching onto the circuit board suface area. there is a danger of electric shock! at the projector picture tubes an the flyback tranformer areas. if you find any blown fuses and intend to replace them, they must be replaced with ones of the same voltage and amperage rating or your could cause a fire and burn up your set or your home. if the fuse at the ac line cord circuit is not blown ,then you have a open on short circuit in the high voltage section of the set. replace the blown fuse and power of the set again, if it should blow the fuse then you need some professional help unless you are familar with testing and changing out the horizontal output transistor in which maybe causing the short.

Dec 30, 2009 | Mitsubishi WS-55859 55" Rear Projection...

1 Answer

Will not turn on, only blinking green light


Ok, your on the right track... Check the main fet or fets that is located right by the caps. Normally if the fet is short, it will pop the fuse, but if your caps poped instead, it could have prevented this. With the set unplugged, you can take a meter set to ohms (lowest setting possible) and if you read a value across any of the 3 pins on the fet (short), then it shot.. If that checks out ok, then take a peek at all the other smaller caps that are on the hot side of the board (the bottom of the board will be labled hot and cold. If one of these was out, it would prevent any of the other voltages from being present. The 5v is a standard test signal, it will normally notify the rest of board to power up when there is a draw on it (kind of like a computer power supply). But I highly recommend replacing all the caps on the hot side of the board and it should fix your problems.

Apr 06, 2008 | Akai PDP4294 42 in. EDTV-Ready Plasma...

3 Answers

Where is the fuse located?


first question does any lights on front panel come on does the green light flash.... if so then i will not be the fuse... otherwise just follow the main power cord back into the set to the back cuircit board behind the green board.

Mar 13, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Mitsubishi WS-65313 - Will not turn on


The most common failure are the two convergence integrated circuits part # 267P173010. The two pico fuses may be open as well, which come from the power supply and provide +24 volts and -24 volts.

Feb 15, 2008 | Mitsubishi WS-65313 65" Rear Projection...

1 Answer

Maxent 50" plasma problem


We seem to have had the same problem. Green light keeps blinking but will not turn set on or off. I unplugged the set for a few minutes, plugged back in and works fine but will happen from time to time for no reason.

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