Table of Contents
Advertisement
4. Troubleshooting
SMPS POWER
„
SMPS Front
2+
1
2
NC
5
NC
6
NC
9
1+
10
NC
13
NC
14
NC
1
Fail Count
2
4
OD_ON/OFF
5
A13V
7
8
10
GND
11
1.
Power TV On.
PS_ON
. 2Vdc (when off) changes to 3.3Vdc (on)
9
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.
2.
if voltage error or no change.
Jog Function Control Test
9
3.
If OK replace Main Board.
All
A13V
supplies to full voltage level 12.7VDC.
9
4.
If any wrong voltage, remove the SMPS connector to Main Board.
A13V again for 12.7VDC.
9
5.
If OK replace Main Board.
6.
If still wrong voltage replace SMPS.
OD
(Over Voltage Detect) : 3.3Vdc (Operating Normal)
9
7.
If 0V or changing, an SMPS or Panel error exists.
8.
Perform Backlight Test.
BLU_PWM
0V- Off to approx 1 - 3.3 V pending Backlight dim level.
9
If missing/error replace
9
4-4
CNL802
3
NC
4
7
NC
8
11
NC
12
15
IF2
16
CNM803
ANA_DIM
3
A13V
6
BLU_PWM
POWER_On/Off
9
GND
12
Main Board.
2-
NC
1-
IF1
CNM803
A13V
GND
GND
CNL802
Fuse
Advertisement
Table of Contents
