Question about Mitsubishi VS-5043 50" Rear Projection Television

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Blown fuses I have found fuses F9A04/F9A05 blown. Once I replace it I'm worried that I can't find was caused them to blow. I have found some posts that say it's the convergence output board. Can you help.

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It is most likely in the power supply

Posted on Aug 25, 2008

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1 Answer

Won't turn on


The five amp fuses are very fast acting pico fuses, by design.
You say you replaced both convergence IC's or not?
Let me know....T.

PS What quality,price and part # IC's.....?

Dec 19, 2007 | Mitsubishi WS-55807 TV

1 Answer

My Mitsubishi WS-65809 displays a 2 blink pause 2 blink sequence when the menu and input buttons are pressed and held at the same time. What does that indicate?


tHats indicating a short. Check the two green pico fuses F9A04 and F9A05 on the center board if they are blown replace the two 5 amp picos and the convergence Ics.

Jun 10, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

I just replaced the 2 ic chips (stk392-570) and the 2 pico fuses at f9a04 and f9a05 that were blown. The tv powed up for about 10 seconds then turned off again. Now i'm getting the same 3 second power...


You have bias resistors close to the IC's, I would guess you have a few that have changed in value and therefore have destroyed the IC's again. Now you must start over again. The resistors will be very low Resistance and tolerance and they must check exact.

Jun 04, 2009 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Installed new 393-110 and still does not work


did you replace both of the 5 amp pico fuses F9A04 and F9A05? They will usually blow when the old IC fails

May 05, 2009 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Mitsubishi WS-55819 Won't turn on


If F9A04 and F9A05 are open the convergence ICs will need to be replaced as well as the two pico fuses. You will need two STK392-570 Convergence ICs and two 5 amp pico fuses. You ca get the replacement parts at the following link with free installation instructions. heres thelink.
http://servicemanuals.vstore.ca/

Jan 22, 2009 | Mitsubishi WS-55819 55" Rear Projection...

1 Answer

Mitsubishi WS-55809 2-2 code


look on the center board where the ics are and check F9A04 and F9A05 pico fuses, if they are blown you will need to replace those two 5 Amp picos and the convergence Ics

Nov 09, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Won't power up.


Check the center board for two green 5amp Pico fuses F9A04 and F9A05 if those two picos are blow, replace both STK392-570 convergence ICs on that same board and the set will be repaired. Fuse F9A05 will read open in circuit but F9a04 wont so its best to lift one side of those two pico fuses out of circuit to check them. (* % of the time a 22 code in that chassis its the ICs having shorted and it will blow those two picos. You can get replacement parts at the following link.
http://servicemanuals.vstore.ca/

Aug 08, 2008 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

Mitsubishi ws48511 convergence problem


Your model uses one convergence IC its a STK392-110 you need to replace that IC. You can get a replacement at the following link with free instalation instructions with pictures so you can do the repaair yourself. Here's the link.
http://servicemanuals.vstore.ca/

Jun 26, 2008 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

Mitsubishi WS-55807 Will Not Power On


first off you should replace both convergance IC and check the resisters coming off the output if any of the resisters are bad it will trash the ic on trying to power up.
i would also replace the caps in the DM section
http://www.jeremyburns.com/Mitsubishi-Green-Blinking-Light-Fix.pdf

http://chrisandnat.com/projects/blinkingtv/blink.htm

Dec 19, 2007 | Mitsubishi WS-55807 TV

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