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4. Troubleshooting
4-1-2. TV POWER ON SEQUENCE
CNM803
1.
Power TV On
POWER ON
.2Vdc (when off) changes to 3.3Vdc (on)
9
NOTE
•
Will stay On for short time when powered off.
•
Frame TV will only go to standby with Function Assy Power Off command.
2.
If voltage error or no change:
Jog Function & IR Control Test
9
3.
If OK remove One Connect Cable to Main Board.
TV Power's on.
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4.
If TV Power's On
One Connect Box & Cable for errors
9
5.
If TV still won't power on
All
A13V
supplies for approx. 12.7VDC
9
All
Vamp
supplies for approx. 12.7VDC
9
6.
If any wrong voltages, remove SMPS connector to Main Board.
A13V
again for approx 12.7VDC
9
All
Vamp
supplies for approx. 12.7VDC
9
7.
If OK replace TV Main Board.
6. If still wrong voltage replace SMPS.
8.
BLU_PWM
Backlight ON/OFF & Dim control : 1Vdc-3.3Vdc depending on backlight dimming level for video.
If missing/Error replace Main Board.
9
4-2
1
FAIL COUNT
Drive 1
3
A13V
5
A13V
7
A13V
9
A13V
11
GND
13
VAMP
15
VAMP
17
VAMP
CNM803
2
ANA-DIM
4
CD ON_OFF
6
BLU_PWM
8
Power_ON/OFF
10
GND
12
GND
14
GND
16
GND
18
GND
Drive 1
1
1+
2
2+
3
1+
4
2+
5
NC
6
NC
7
1-
8
2-
9
1-
10
2-
11
IF2
12
IF1
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