24
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
Summary of Contents for L24C1180
Page 17: ...17 4 Mechanical Instructions Step1 Remove the STAND ASS Y Step2 Remove the REAR COVER...
Page 19: ...19 Step 5 Separate the MAIN FRAME and PANEL Step 6 Remove the KEY BOARD IR BOARD and SPEAKERS...
Page 27: ...27 6 PCB Layout 6 1 Main Board 715G3759M02000005K...
Page 28: ...28...
Page 29: ...29 6 2 Power Board 715G3754P01W30003H...
Page 30: ...30...
Page 31: ...31...
Page 32: ...32 6 3 Key Board 715G3303 2 6 4 IR Board 715G3963R01000004S...
