30
5. Sound problem
No
Check the cable between the
speakers and main board+power
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+power 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 LE19P620
Page 4: ...4 1 General Specification ...
Page 5: ...5 2 Operating Instructions 2 1 Remote Control ...
Page 6: ...6 ...
Page 7: ...7 2 2 OSD Menus ...
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Page 18: ...18 2 3 Panel Control and Rear Terminal Control ...
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Page 23: ...23 3 2 Input Signal Timing ...
Page 24: ...24 4 Mechanical Instructions Step1 Remove the BASE Step2 Remove the REAR COVER ...
Page 25: ...25 Step3 Remove the MAIN BOARD POWER BOARD IR BOARD and Speakers Step4 Remove the panel ...
Page 33: ...33 6 PCB Layout 6 1 Main Board 715G6717C1A000004N ...
Page 34: ...34 ...
Page 35: ...35 6 2 IR Board 715G5889R01000004K ...
Page 36: ...36 7 Adjustment 7 1 ADC WB Adjustment ADC and WB Adjustment are no need to adjust ...
Page 39: ...39 8 Block Diagram ...
