57
NG
Both OK
58V(*),
88V(*)
Power on.
Check if the voltage
of SRV-VLED1(pin17-28 of PB1)
and SRV-VLED2 (pin17-28 of
PB2) before LED 1 blink?
NG
OK
3.3V
Panel Module
Panel Module
Troubleshooting for LED Blinking ( 1 time blink )
Shorted
OK
(Power off) Disconnect
PB1 and PB2 connector.
Short check between SRV-
VLED1, VLED2 and GND
PB Module
Check if the voltage
of SRV-BL-ON (pin 5 of PB1)
before LED 1 blink?
Refer to the previous page block diagram.
Ex. DX900** series
NG
A board
Check if the voltage
of BL_ON (pin 15 of A03)
before LED 1 blink?
OK
3.3V
Panel Module
(*)VLED : The DC level is different by the LCD panel.
<A+P+PB> -2
