Panasonic OLED-201806 Technical Manual page 56

Troubleshooting for LED Blinking ( 1 time blink ) for A+P type -5
A+P Board Type ( only
Disassemble P board.
Open check of 8 Fuses
(PA7801-PA7808) of
P board
Any one of them opened
Both Panel and P board
TX-65/55FX74#/75#/78#, TH/TC-65/55FX800)
Short check of 8 Transistors
(55inch=Q7801-Q7808
65inch=Q7804-Q7811)
OK
between
(all shorted)
Collector and Emitter
Any one of them shorted
P board
Short check between SRV-
VLED of P board and GND.
Both
OK
Shorted
P board
<A+P>
Panel Module
OK
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