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5. TROUBLESHOOTING CHART
START
POWER ON
Is the LED
illuminated?
Yes
Is the backlight
illuminated?
Yes
Push the RESET
button.
Is power supply voltage
described (*1)?
Yes
1
No
No
Is CN20 12V?
Yes
Is the voltage at the both
side of fuse on the Inverter
circuit board 12V?
Yes
Backlight failure.
No
(*1)
TP1
=approx.12V
TP200=approx.5V
TP202=approx.5.1V
TP203=approx.5.15V
TP204=approx.10V
21
No
No
Inverter circuit board
failure.
Go to Power Source
Circuit Check.
Yes
No
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