Question about Mitsubishi WS-55511 55" Rear Projection Television

1 Answer

Ws-55511 no power

No power. no response from remote or front panel. no flashing light. power is good. service tech said it was the "brain board". quoted 820.00

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  • volkl184 Sep 17, 2008

    My set was working fine till I disconnected it to move it across the room. Plugged it in and no power to set. No lights, nothing.
    Reset button no help. Ideas?


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  • 927 Answers

Good Day;

This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB. 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. OR your TV has "COOLANT" (ethylene glycol) on the circuit boards. This fluid comes from the CRT's (picture tube) this fluid is used to keep the CRT's cool, such the name. This fluid from the CRT's leak when TV is on for long periods of time, the chamber expands and the seals leak.

One can remove this fluid by using "acetone" & small brush. The fluid is hard to see, use bright light, they spots can be smaller then a DIME. Also, the fluid can corrode the parts and traces on the boards. To protect the TV in future place heavy plastic or thick cardboard over affective area, make sure TV has proper air flow around TV. Good Luck, big IRISH.

Posted on Oct 01, 2008

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I have a mitsubishi ws-55511 had power failure blinking light asked expert was told to un hook front control box which left tv working with remote control functions only. now we had a fower failure &...


I am the one here who first posted about taking the front keyboard out; if you replaced the caps in the DM unit and or pico fuses and still have the 'blinking green light of death" consider sending the board unit to PTS electronics.

You can get a quote from them for the repair and they have a 800 number; if you tried the usual things and it does not work go that way. Even with the factory service manual and schematics you will find it nearly impossible with the Unit in the set to take voltages and troubleshoot it.

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The green light on the front panel is flashing but


Try website Tvrepairworld.com to buy a refurbish DM power board for the replacement.U know soldreing?Buy capacitors for the replament.

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Mitsubishi WS-55511 not responding to remote or front panel. Tried System Reset Button several times. No luck.


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Try running your fingers across the buttons to see if it helps.
I ended up disconneting the front panel switch board and just use the remote now.

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Got a Mitsubishi ws-55511 as a freebie a few weeks ago. Once plugged in it does nothing but flash the power light. Prior owner removed access panel but went no further. I am an audio engineer with lots of...


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www.tvrepairkits.net

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There are 2. One controls the front panel and the other controls the front output. Unplugging it will not interfere with the remote. In fact, you will only be able to operate the tv with the remote. Let me know how you make out. Incidentally, I sent an email off to Mitsubishi and surprisingly they got back to me in a day. I informed them about the problem all these people are having and they are actually looking into it. They even offered to pay for my new front panel. Go figure!!

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