Panasonic TH-42PW6BX Service Manual page 20

3. Remarks
Above Fan function is operated during the fans are installed.
11.2. No Power
[First check point]
There are following 3 states of No Power indication by power LED.
1. No lit
2. Green is lit then turns red blinking a few seconds later.
3. Only red is lit.
1. No lit
11.3. No Picture
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