Question about Toshiba 57HC85 57" Television

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Power comes on but has no picture

57hc85

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The most common issue with these sets is convergence, set will not have sound and power light will be on or off.

Does this sound like your issue?

Posted on Dec 04, 2012

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1 Answer

Tv will not turn on


Most common issue with this set is convergence--one of the two chips used (likely a stk-392-110 chip) has failed and either took a protection part or resistor with it.

Only easy way to be sure is remove both chips from the circuit by getting at them and removal of solder on all pins of both chips--18 pins each.

It is so common I do it first thing with one of these that are dead, sometimes set will even come on with chips out of circuit--will look bad but if comes on you know what you have.

see photo of chips:
12_10_2012_6_20_24_pm.jpg

Dec 10, 2012 | Toshiba 57HC85 57" Television

2 Answers

Projection tv


Please give us some more details about your TV (brand, model etc)

Oct 25, 2007 | Toshiba 57HC85 57" Television

1 Answer

My tv powers on good, but has no picture


I need some help, no picture, no sound either or what? Also was set doing anything unusual before it failed?

Dec 09, 2012 | Toshiba 57HC85 57" Television

1 Answer

No color only displays black and white


disconnect set and anything connected to it from power for a while to see if when power is connected back all the units will reboot--may help and is easy to try.

Oct 31, 2012 | Toshiba 57HC85 57" Television

1 Answer

The situation: My old cable box was constantly


You have reversed polarity in your outlet and probably not grounded. If you have any voltage setting on the ground of the hdmi then its your home electrical at fault. If you take the extension cord and reverse the plug from the tv to the ext cord you will probably not find any voltage on the hdmi.I know the neutral is wider but you can make it fit just to test. We ran into this years ago when cable boxes came out with older homes.

Dec 19, 2010 | Toshiba 57HC85 57" Television

1 Answer

Broken screens


Try Encompassparts.com

Oct 28, 2009 | Toshiba 57HC85 57" Television

1 Answer

My Projection Monitor won't show blue color anymore!


sounds like you lost the blue gun for some reason, could be high voltage related but the blue gun,or tube is not working for some reason

Jul 09, 2009 | Toshiba 57HC85 57" Television

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