Akai LM-H17CLSA, Service Manual, Page: 22 / 54

(2) No Backlight , but LED lights up
-20-
Red
No Backlight ,but
LED lights up
Which Color does
LED
Display ?
Is it entering into
Power Saving
on
PC mode ?
End
Restart Signal to
ensure H. V. sync.
are not absent
Yes
No
Restart Signal to
ensure
H. V. sync.
are not absent
Yes
Reset the MCU(I012) by
pressing the power key
or re-plugging the DC
12V cable.
Replace I012
End
End
Still no
Picture
I012 (MCU)
hangs
temporarily .
Press
POWER
key &
Re-plug
DC 12V Adapter
to reset I012 (MCU) .
Replace
MCU ( I012 )
End
Still no
Picture
Replace
U901 (Inverter)
or
I019 (Scaler)
Green
Picture
shows
Check & Re-plug
PA17
(from Inverter)
Still No
backlight