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Power can not be turned on
Are
voltage input
2
3
4
5
NO
Drive at standby y
mode?
: +16V
2
: +19V
3
YES
: +7V
4
: +4.5V
5
Disconnect
TSW form Power unit
Open
(circuit). And check
TSW short or
open?
Short
Blinks
What is the state of TEMP P
indicator?
Not light
Blinks
What is the state of LAMP P
indicator?
Not light
PWB ass'y Drive
H (More than 6V)
PWB ass'y Drive
Power unit (circuit)
on Power unit (circuit)
TSW
DC FAN (EXHAUST)
PWB ass'y SENSOR
Is the LAMP COVER
set?
OK
Is the LAMP
connection?
OK
Measure
voltage at the
of
4
E804 on the PWB ass'y
drive.
L (OV)
Limit SW
-- 13 --
Fuse
NG
Set the LAMP COVER
NG
Set the LAMP again
CP-X270W
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