Fast Track Troubleshooting Manual
Power On Sequence:
1. Standby Voltages:
CN201-2, 4 (5V)
2. Power On
probable error on CN201-2
or 4 PS_ON )
3. Low Voltage Supplies On
CN201-
5,6,7,13,17
4. Back Light Supply On
CN201 -16
5. Back Light Confirmation
CN201-18
2
Wiring Diagram
Include Connector Numbers , References, and
Locations.
C
N
2
0
1
S
I
G.
P
I
N
S
I
G.
1
B12V
10
GND
2
A5V
11
GND
3
B12V
12
H_OUT
4
A5V
13
B13V
5
B5V
14
PWM
Dimming
6
B5V
15
B13V
7
B5V
16
B5V
8
GND
17
B13V
9
GND
18
IP_DET
UN40C6400QFXZA
LVDS
Cable
To Force Backlight On
without Main Board :
1. Remove Power Cord
2. Disconnect CN201
3. Plug In Power Cord
4. Backlight should be
on immediately.
