Troubleshooting - Samsung UN40J5200AF 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.
-
Check to see if the cables are connected according to the connection diagram.
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2. Check the power input to the ASSY PCB MAIN.
ASSY PCB MAIN
NETWORK-WI-FI MODULE
ASSY BOARD P FUNCTION
ASSY PCB MAIN (CN202)
9 A13V
7 A13V
5 A13V
3 A13V
1 GND
3. Check the power in & output between DC VSS-LED PD BD (SMPS) & ASSY PCB MAIN, ASSY PCB MAIN & Panel, IP
& Panel.
DC VSS-LED PD BD
Power Cable
LVDS Cable
ASSY SPEAKER P (R/L)
10 UNDER_DRIVER
8 PWM_DIM
6 SW_POWER_TO_SMPS
4
2
BLU Cable
ASSY T CON P
GND
GND
4. Troubleshooting
4-1