Troubleshooting - Samsung UE40H5003AW 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.
-
Check to see if there is a disconnected or loose cable connection.
-
Check to see if the cables are connected according to the connection diagram.
-
2. Check the power input to the Main Board.
Main Ass'y
Main Board Assy (CN202)
9 A13V
7 A13V
5 A13V
3 A13V
1 GND
3.
Check the power in & output between SMPS & Main Board, Main Board & Panel, IP & Panel.
Power Ass'y
Power Cable
LVDS Cable
Speaker
10 UNDER_DRIVER
8 PWM_DIM
6 SW_POWER_TO _SMPS
4 GND
2 GND
4. Troubleshooting
4-1