Question about Mitsubishi VS-7083 70" Rear Projection Television
My television is running horizontal lines. It seems that any floor movement triggers the TV to jumps to flickering horizontal lines. If I turn the TV off the problem goes away and if anyone stumps or walks to close to the TV the problem continues. Any suggestions?
The deflection board and/or smps have most likely ring-cracked on one or more components on the board due to heat stress. It's not an expensive fix at the moment, but continuing to operate it this way will place additional stress on components like the regulator and they will eventually fail...
If you're taking it into the shop for this repair also discuss with your tech to do the following per Mits bulletin: APPLY FOLLOWING CIRCUIT CHANGES ON PCB-SIGNAL: A. REPLACE R2K8 WITH A 1K RESISTOR (BASE OF Q2B2). B. REPLACE R2K3 WITH A 47 OHM RESISTOR (IC201 PIN 50). C. ADD A 100PF CAPACITOR FROM BASE OF Q2B2 TO JUNCTION OF R2L0 AND R2K6 (GROUND).
Have a great day!
Posted on Nov 29, 2007
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Posted on Jan 02, 2017
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