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4. Troubleshooting
4-2-6. T-CON Board
T-CON Operation and Testing
1.
Check TV Board Connector Voltages from SMPS (switched voltages on CNM803)
2.
Test for 13VDC at both sides of both fuses on the TCON Board.
3.
If either one of the fuses is open, replace the T-CON Board.
4.
If 13VDC are missing on fuses, check output feed from TV Board (CN501,pins 1-10).
5.
If 13VDC feed is present at the output of the TV Board, suspect a defective LVDS cable.
6.
If the 13VDC feed is not present, suspect a defective TV Board or SMPS.
1
2
3
A13V_PW
4
5
A13V_PW
6
SW_POWER_OUT
7
A13V_PW
8
CNM803 from SMPS
4-12
GND
9
GND
10
11
GND
12
13
14
15
B5V_PW
16
CN201
CN2301
CN201 (POWER Connector)
A13V_PW
OVD_ON_OFF
SMPS_FET_FAIL_DETECT
ANA_DIMMING
GND
OVD_LEVEL
A13V_PW
GND
(ASSY T CON P)
CN501
17
A13VS_PW
18
19
A13VS_PW
20
21
A13VS_PW
22
Fuse
CNM803
GND
GND
GND
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