Panasonic LCD-2016

Troubleshooting for LED Blinking ( 1 time blink )
Ex. 43/49DS630** series
Refer to the previous page block diagram.
(Power off) Connect LD1 and LD2
Disconnect LD1 and LD2 connectors. Power on.
<A+P+LD/LDP> -2
connectors. Short check between
pin8,9 of LD1 and GND,
pin1,5 of LD2 and GND.
NG
LD board
Both OK
Check if the voltage
ALL OK of SRV-VLED1, VLED2 (pin 3 , 7 58V(*),
of LD2) before LED 1 blink? 88V(*)
NG
Short check between SRV-
VLED1, VLED2 and GND
OK
Shorted
Panel Module
Panel Module
Power on.
Check if the voltage
of SRV-VLED (pin 9 of LD1)
before LED 1 blink?
NG
P board
OK
32V(*)
LD board
(*)VLED : The DC level is different by the LCD panel.
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