SMPS POWER
SMPS Front
Fuse
CNM803
CNL802
CNM803
1
Fail Count
2
ANA_DIM
3
A13V
4
OD_ON/OFF
5
A13V
6
BLU_PWM
7
A13V
8
POWER_On/Off
9
GND
10
GND
11
GND
12
GND
CNL802
1
2+
2
NC
3
NC
4
2-
5
NC
6
NC
7
NC
8
NC
9
1+
10
NC
11
NC
12
1-
13
NC
14
NC
15
IF2
16
IF1
Power TV On.
1.
PS_ON
9
.
2Vdc
(when off) changes to
3.3Vdc
(on)
PS_On stays active for approx 20 sec. after TV is placed in Standby. It also remains ON for approx 2 min.
-
after initial AC Power Cord is connected, even though standby indicator is lit.
if voltage error or no change.
2.
Jog Function Control Test
9
If OK replace Main Board.
3.
All
9
A13V
supplies to
full voltage level
12.7VDC
.
If any wrong voltage, remove the SMPS connector to Main Board.
4.
A13V again for 12.7VDC.
9
If OK replace Main Board.
5.
If still wrong voltage replace SMPS.
6.
OD
9
(Over Voltage Detect) : 3.3Vdc (Operating Normal)
If 0V or changing, an SMPS or Panel error exists.
7.
Perform Backlight Test.
8.
BLU_PWM
9
0V- Off to approx 1 - 3.3 V pending Backlight dim level.
If missing/error replace
9
Main Board
.
4-4
4. Troubleshooting