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CP-X270W
Connect
E302 (for PWB
ass'y SENSOR)
H (3.3V)
DC FAN
(INTAKE A/B)
Lamp does not light
What is the state of
LAMP indicator
during operation?
Not light
Blinks
Does disconnect
YES
E302 (for PWB ass'y
SENSOR) ?
NO
Measure
sure voltage at
the
of I303 on the PWB
7
ass'y Drive.
L (OV)
PWB ass'y Drive
Light
Not light
Change the lamp.
Does lamp light?
Power unit (ballast)
Light
Lamp
What is the state of
TEMP indicator?
Not light
Is pin
1
of EBAR
NO
on the PWB ass'y
Drive set to "H"?
YES
PWB ass'y Drive
"H" =3.3V
Power unit (ballast)
-- 14 --
Power unit (circuit)
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