33
5. Sound problem
No
Check the cable between the
speakers and main board is OK?
No sound or sound abnormal
Check the TV is muted, adjust the
volume or enter the menu to reset?
Reinsert the audio cable or
change the TV system
Replace the cable
Replace the speaker
Replace the main board
No
Yes
Check the speaker resistance value is in spec
(Remark: The value is marked on the speaker)?
Check the audio source connection
and the TV system are correct?
Yes
No
Yes
No
Enter factory mode to do “Reset”
No
Содержание LE43B7500
Страница 4: ...4 1 General Specification...
Страница 5: ...5 2 Operating Instructions 2 1 Remote Control...
Страница 6: ...6...
Страница 19: ...19 2 3 Panel Control and Rear Terminal Control...
Страница 20: ...20...
Страница 21: ...21...
Страница 22: ...22...
Страница 26: ...26 4 Mechanical Instructions Step1 Remove the BASE Step2 Remove the REAR COVER...
Страница 27: ...27 Step3 Remove the MAIN BOARD POWER BOARD BKT IO SPEAKER Step4 Remove the BKT_STAND Step5 Remove the DECO...
Страница 28: ...28 Step6 PANEL...
Страница 36: ...36 6 PCB Layout 6 1 Main Board 715G6686M01002004K...
Страница 37: ...37...
Страница 38: ...38 6 2 Power Board 715G6679P02001002M...
Страница 39: ...39...
Страница 40: ...40...
Страница 41: ...41 6 3 IR Board 715G6721R01002004I 6 4 Key Board 715G6715K01002004I...