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14
3. No display
Check the B/L
signal is available?
Replace main board
Replace the power board
Panel Vcc = 5V?
Replace the Panel
No display (LED Blue)
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
=
24V?
Check TV is under control and power
on/off by remote control and power key?
All manuals and user guides at all-guides.com
Summary of Contents for HL42XP22
Page 10: ...10 Step3 Remove the BKT and SPEAKERS All manuals and user guides at all guides com ...
Page 18: ...18 All manuals and user guides at all guides com ...
Page 19: ...19 6 2 Power Board 715G3885P01W20003M All manuals and user guides at all guides com ...
Page 20: ...20 All manuals and user guides at all guides com ...
Page 21: ...21 All manuals and user guides at all guides com a l l g u i d e s c o m ...
Page 23: ...23 6 5 IR Board 715G4247R01000004S All manuals and user guides at all guides com ...