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DC fan malfunction
Measure the voltage
at each pin
Set AC to ON and
enter standby status
The voltage is
H (3.3V)
Turn on the
power supply and check
the voltage
The voltage
(about 1 sec.)
H (3.3V)
OK
Check the fan connector
connection
FAN
NG
Connector connection
CP-SX1350(P5SX+)
Lamp does not light
What is the state of
LAMP indicator DK52
during operation?
Not light
H (3.3V)
DC FAN
PANEL B : E801
1
PANEL G : E802
1
PANEL R : E803
1
EXHAUST : E804
1
INTAKE : E809
1
LAMP : E808
1
once
Normal
to L (0V)
about 1 sec.
H
OK
AC ON Power ON
H
NG
Is the
voltage at collector
Light
of Q801 on the PWB assembly
Drive fixed to "L" during
warming-up?
NO
Change the lamp.
Does lamp light?
Not light
Power unit (ballast)
Blinks
state of TEMP indicator
(DK 53 on the KEYPAD
Measure
sure voltage at
TP-FS and/or TP-FS2 on
the PWB assembly
Drive.
at pin
L (0V)
the PWB assembly Drive
PWB assembly Drive
Power unit (ballast)
14
YES
PWB assembly Drive
"L" = 0V
Light
Lamp
Power unit (circuit)
What is the
board)?
Not light
Is the voltage
of E805 on
3
NO
set to "L" during
"L" = 0V
warming-up?
YES
PWB assembly Drive
(L = less
than 1.5V)
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