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Troubleshooting for LED Blinking ( 1 time blink ) for A+P+LDP type -2
Ex. 65EX600 series
(Power off)
Disconnect LDP5 and LDP6
connectors. Short check between
pin3 of LDP5 and GND,
pin3 of LDP6 and GND.
NG
LDP board
(*)VLED : The DC level is different by the LCD panel.
Connect LDP5 and LDP6
connectors. Power on.
Check if the voltage
of SRV-VLED1, VLED2 (pin 1 of
ALL OK
LDP5/LDP6) before LED 1 blink?
NG
Short check between SRV-
VLED1, VLED2 and GND
Shorted
Panel Module
Panel Module
Both OK
Power on.
Check if the voltage
of SRV-64V (pin 19/20 of P2)
OK
before LED 1 blink?
NG
P board
<A+P+LDP>
OK
LDP board
64V(*)
51
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