Question about RCA P52926 52" Rear Projection Television
I have been having a problem with my rca 52" rear projection tv where the volume control is locked, i can not rasie nor lower the volume, sometimes i have unplugged the tv to reset but lately that has not worked, when it has worked the display on the screen shows the time, the channel and an item that says UNLOCKED, then i can adjust the volume otherwise i can not adjust the volume. if anyone might have a solution i would greatly appreciate anything at this point. (manuf. 2000)
This can be a tricky one, I would check the 5 and 3.4 volt lines first with a DVM (analog meter will not due) then with a scope to see what the voltages are and what they look like. A bad cap on the rail for the e-prom can cause this or the eeprom may be bad, this also happens. It might be best to contact a scv. co. as you can a lot more problems in that area if your not familiar with it.
Posted on Feb 26, 2009
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