Troubleshooting - Samsung UE**F5000A SERIES Service Manual

4. Troubleshooting

4-1. Troubleshooting
Previous Check
„
1.
Check the various cable connections first.
Check to see if there is a burnt or damaged cable.
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Check to see if there is a disconnected or loose cable connection.
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Check to see if the cables are connected according to the connection diagram.
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2. Check the power input to the Main Board.
Main Ass'y
Main Board Assy (CN201)
13 B13V
11 B13V
9 B13VS
7 B13VS
5 GND
3 B5.3V
1 B5.3V
* Change the 14Pin to PWM_DIM(2013 years) from B13V(2012 years)
3. Check the power in & output between IP & Main Board, Main Board & Panel, IP & Panel.
Power Cable
LVDS Cable
Speaker
14 PWM_DIM 14
12 B13V 12
10 SW_INV 10
8 GND
6 GND
4 A5.3V
2 SW_PW
Power Ass'y
Power Board Assy (CNM803)
B13V 13
B13V 11
SW_INV 9
8 GND 7
6 GND 5
4 A5.3V 3
2 SW_PW 1
B13V
B13V
B13VS
B13VS
GND
B5.3V
B5.3V
4. Troubleshooting
4-1