4-3-7. Backlight Quick Test
One Connect Power Supply to TV SMPS
•
CNM803
CNM803A
ONE CONNECT BOX
LD/SMPS A
CNM803 (POWER)
FAIL_COUNT
2
1
IR_SMPS
POWER_LOW 4
3
PS_ON
GND
6
5
GND
A13V
8
7
A13V
A13V
10
9
A13V
GND
12 11
GND
N.C
14 13
N.C
B350V
16 15
B350V
N.C
18 17
N.C
B_GND
20 19
B_GND
A13V
B350V
Backlight Test Cable
CNM803
CNM803
ONE CONNECT BOX
Remove AC Power to the OCB & Remove Cover (follow Disassembly Procedure).
1.
Connect Discharge Tool across leads of each large Capacitors to remove its charge.
2.
Discharge Tool
Remove Connector
3.
CNM803
.
Connect TV
4.
Backlight Test Cable
to Supply
350Vdc
&
13Vdc
directly to the TV Panel.
4-14
4. Troubleshooting