30
4. No display
Check the B/L
signal is available?
Replace main board
Replace the power board
Panel Vcc = 12V?
Replace the Panel
No display (No LED)
Replace the main board
Check the backlight is
“On”?
Check the LVDS cable
Reinsert or replace the
LVDS cable
Replace the main board
Replace the Panel
No
Yes
Yes
No
Yes
No
No
Yes
Yes
No
Yes
No
Power board output
=
12/16V?
Check TV is under control and power
on/off by remote control and power key?
Summary of Contents for LE22A3520/61
Page 5: ...5 2 Operating Instructions 2 1 The Use of Remote Control ...
Page 6: ...6 2 2 To Use the Menus Picture Setting ...
Page 7: ...7 Sound Setting Settings Menu ...
Page 8: ...8 Channel Search ...
Page 11: ...11 Other Adjustments ...
Page 13: ...13 Sound and OSD ...
Page 15: ...15 Media Functions USB Viewing Photos ...
Page 20: ...20 2 4 Front Panel Control Knobs ...
Page 26: ...26 5 Remove the screw to remove IR BOARD ...
Page 34: ...34 6 PCB Layout 6 1 Main Board 715G4629M01000004K ...
Page 35: ...35 ...
Page 36: ...36 ...
Page 37: ...37 6 2 Power Board 715G5309P0A001002S ...
Page 38: ...38 ...
Page 39: ...39 6 3 Key Board 715G5569K01000004S 6 4 IR Board 715G5061R01000004M ...
Page 41: ...41 8 Block Diagram ...
Page 58: ...58 10 Exploded View ...