Troubleshooting - Samsung UN40J5300AG 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
ASSY PCB MAIN
Jog Shuttle / IR
WIFI
ASSY PCB MAIN Board Assy (CN202)
9
7
5
3
1
3. Check the power in & output between SMPS (
Panel.
Board.
ASSY PCB MAIN
Power Cable
LVDS Cable
ASSY SPEAKER P (R/L)
A13V 10 UNDER_DRIVER
A13V 8
SW_POWER_TO
A13V 6
A13V 4
GND 2
DC VSS-LED PD BD)
DC VSS-LED PD BD
ASSY T CON P
PWM_DIM
_SMPS
GND
GND
&
ASSY PCB MAIN
4. Troubleshooting
, & Panel, IP &
ASSY PCB MAIN
4-1