Question about Mitsubishi Televison & Video
12 means there is nothing wrong.
As you have tried unplugging and it did not work, that confirms an issue with PCB. At power on the status LED blinks green for 20 seconds, stops blinking goes to green for a few seconds (the welcome screen may be present) and then unit turns off; self-diagnosis is 1-2 (no error). Replace the Main PCB # 934C328001.
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Posted on Sep 11, 2010
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Posted on Jan 02, 2017
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