Need help repairing Mitsubishi VS 4541 rear projection TV

The TV has great sound but no picture I took off the back panel the bulbs are fine they all work red,blue and green the mirror is fine and all the boards look ok please help I was thinking the video processor but I have no idea where it is located.

3 more comments
Anonymous Mar 26, 2008

sound sound
hobaugh May 21, 2008

no picture but there is sound no picture but there is sound
Anonymous Apr 02, 2009

i have this vs-4541 model. it worked atmy friends house and they

brought it to mine. its getting sound but now no picture. i took off

back side and looked around i dont see anything broken or

out of place. can someone help me, i think their reomte is the issue

to get to have veido, but now after reading i am thinking something

must have got bumped in the transportation.

anyone please give me ideas of what to do or call

and i need a manual too. my number is 614-975-9069 thanks
Anonymous Apr 22, 2009

Lectra, did you ever get a hold of a service manual? Mine is doing the same thing.
Anonymous May 18, 2012

I have a mitsubishi vs 4541 unit powers up for an hour and then the picture goes out but i still have great sound i did clean it all out it seemed to help but it still shuts off

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Anonymous

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I have the same type of TV, and I think it has a filed "power rail", as the LED does not burn at all, nor do the heaters of any of the CRT's. When I plug it in, I can hear the relays click in, and hitting the power button will cause the relays to click. Other than this, there is no sign of life from this TV. I really would like to find a repair manual or a schematic to aid in troubleshooting. The self-diag trick may be handy if the LED would come on. I'll try it and see what it does.

Posted on Sep 09, 2007

Anonymous Sep 09, 2007

Nothing. I have a test button, two input buttons (an up and down), and two adjust buttons (up and down). No menu button, and no remote (it may come with one, but I got mine second-hand). Schematics would really help me here.
Anonymous Sep 11, 2007

Fixed it! Turns out that an RF-stopper inductor (basically a wire wound a couple times through a ferrite bead) has become partially unsoldered, and the connection heated up hot enough to fricassee the board (turning it dark). Simply resoldering the connection brought this TV back to life.

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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 input 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

Posted on Aug 21, 2007