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Mitsubishi TV 65 inch rear projection. WS 65809 I went thru the convergence ic chip replacement years ago. Love the TV. My problem now is that the brightness goes from full bright to full dim then corrects itself. It does this all by itself. I am able to "chase" a proper setting by adjusting the brightness control manually. It does this with the "iris" in auto and not in auto.

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The old Mitsubishi units had a super capacitor in the logic circuit instead of a backup battery. This capacitor became leaky over time, causing the problem you describe among others. Number one symptom is set has audio and dark or black picture when powered up. As the super cap charges to full voltage, picture comes and goes.

Posted on Nov 27, 2014

  • tsuperfrugal Nov 27, 2014

    Capacitor c-what ? On what board please ?

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Posted on Jan 02, 2017

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SOURCE: Mitsubishi WS 65809 65" Rear Projection TV. Turns

Hello There, Its seems that the circuit board has problems. You'll have to get it replaced ASAP before the board is ruined completely.
The same thing also happened to me 2-3 weeks ago. the techs came in and had to replace the board since 1 circuit was damaged.
It will cost around $100
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Posted on Jan 16, 2011

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SCREEN HAS VARIES RED -BLUE-WHITE- LINE SHOWING, I TRIED USE THE


It needs to be repaired by having the convergence ICs replaced or resoldered (if intermittent).

Parts are STK 392-570. Be sure to use thermal paste on the ICs.

Jul 02, 2010 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

Mitsubishi WS-65809 convergence problem


I know these sets very well and have posted instructions here for the chip replacement many times.

If you really need help I am in California and will be online noon until 11 pm tomorrow- (Pacific time) if you really want help post a question in the Premium section here attention SD TECH and I will help you more.

SD TECH

Jan 28, 2010 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Image problem with WS-65809 65" Mitsubishi Projection TV


WS-65809?, if convergence is skewed and comes and goes, uses two of the STK-392-570 CONVERGENCE IC chips.

I have seen a lot of the Mitsubishi sets that use these two chips where the convergence jumps in and out. You need to replace both chips and adjust the set.

You can buy a pair of the chips on EBAY for less than 13 dollars plus shipping.

I HAVE START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR IN THE SETS THAT USE THESE TWO CHIPS.

If you or someone you know can do the repair you can save the set and a lot of money--most shops are going to get at least 300 for this kind of repair--I know as I have done hundreds of them here.

The instructions tell you everything you will need and how to do the repair. I have helped many people here do this based on my instructions.

If you want the instructions let me know and I will either post them here or send them to you.

If this information has helped you, rate this solution as I do this here for FREE.

SD TECH

Nov 30, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Mitsubishi 65 inch rear projection 7 years old, the screen strted to look like a 3D picture without the glases on, then went off completly, no green light and will not power up


replace toe to big ics in the center of main board the # on the ic stk560
because you kept on running it then check for fusable resisters thay look like little black resisters with no colors on them

Sep 27, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Mitsubishi Rear Projection 65" tv picture becomes blurred bouncing right to left and color is red & green. TV is 8 years old approx. Any suggestions. Have not had any problems prevoiusly. First it woudl...


Sounds like possible solder connections on the convergence ICs. If so, you will see the red, green, and blue not lining up on ever input and even the mits menu. If you can bump it to correct, its just a solder connection, but if its out all the time then the ICs need replaced. This is a difficult repair only recommended for skilled technicians (40 solder connections + possible re-alignment needed)

Dec 03, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Convergence problem I have an intermittent vertical convergence problem. I have to shut off the TV and turn it back on to get a normal picture again. Need to fix this problem. The TV is a Mitsubishi...


Good Day;

You have poor connections on your "convergence IC's. Middle board IC's on large silver heat sink. Redo solder before total failure. Good Luck, big IRISH.

Oct 17, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Convergence ics


www.matelectronics.com Check resisters (low ohmage) in front of IC's, usually discolor or change value.

May 25, 2007 | Mitsubishi WS-65809 65" Rear Projection...

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