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4. Troubleshooting
4-1. Previous Check
Check list for initial operation
Check the various cable connections first.
1.
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.
-
Check the power input to the Main Board.
2.
How to distinguish if the problem is caused by Main Board.
3.
No Video
-
Symptom
If the problem is No Video but BLU is on and Indication LED is blinking repeatedly and faster
than nomal booting.
Check Points
Replace the Main Board.
•
Distorted Picture :
-
Check Points
Check the inner patterns.
•
Inner View
ASSY PCB MAIN
DC VSS-PD
BOARD
ASSY SPEAKER P-FRONT
ASSY BOARD P-FUNCTION / NETWORK
4-1
4. Troubleshooting
Содержание UN43KU7500F
Страница 49: ...2 2 2 Product specifications Model UN KU7500F Flash 1 x eMMC5 0 DDR LPDDR4 1 25GHz 64bit ...
Страница 71: ...2 24 2 Product specifications 2 4 2 Picture Content source functon channel list on four sides ...
Страница 97: ...PANEL If Noisy 1 Panel defective 9 9 4 8 4 Troubleshooting ...