I previously posted the blue screen with sunburst pattern problem. I replaced the lamp and still have no signal - just a blue screen that is flickering and flashing. After reading simular posted issues(blue screen with no signal), many suggestions were to replace the PCB Signal 930B923002. I suspect this is what is wrong with my unit, but where do I get this part? Mitsubishi's website only shows how to order lamps and remote controls.
You need to find a local servicer to order parts for you. It seems like a gamble to replace the signal board without further troubleshooting. Minimally, you should check your power board for swollen capacitors, as this has been a common problem.
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F5 00 Content Copy lamp lighting error
Detail Copy lamp does not light despite the
output of lighting signal.
Copy lamp lights without the output of
Cause DC power supply defective
Control PWB defective
Copy lamp defective
Improper connection of harness between
PCU PWB, DC power supply unit and copy
Check copy lamp for lighting with SIM5-3.
Check harnesses and connectors between
PCU PWB, DC power supply and copy
Capacitor failure is the most likely scenario the FMT ans Signal PWB would cause the picture interference and the power pwb would cause the lamp light to turn red and give a 34 code when the device/ input and menu buttons are pressed in together and held for five seconds. That chassis has issues with every board in the chassis having failed capacitors you can get repair kits for the V26 chassis at the follwing link that come with instructions. Your model is the V26 chassis. Heres the link. http://servicemanuals.vstore.ca/
yes they provide a free service manual with their kits. the symptom of the blue screen could either be the signal or the FMT as they can both cause those symptoms, My professional guess would be the signal board as the FMT will cause distortion lines across the screen with no picture.