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Diagnostic Information 2-69
4085-001
Cam System Motor/Sensor Service Check
User Error Messages
FRU Action
1 Motor does not
work.
Bat Wings do not
move.
Check the voltage at connector (J8) on the engine
board. At pins 1, 2, 3, and 4 with the power on.
There should be approximately +34 V dc on each
pin to ground. If the voltage is incorrect, replace
the engine board. If the voltage is correct,
disconnect (J8) and check between pins 2 and 4
on the connector for approximately 7.5 ohms. If
the reading is incorrect, check the continuity
between pins 2 and 4 to the motor case. If
continuity exists, replace the cam system motor.
To check the sensor, check connector (J8) at pin 5
for approximately +4.9 volts. If voltage is incorrect,
replace the engine board. If the voltage is correct,
disconnect (J8) from the engine board and check
for an ohm reading of 6.95 between pins 5 and 7.
If the reading is not correct, replace the sensor.
Note: If a short exists in the cam system motor,
damage to the engine board drivers and power
supply may occur.
Message Explanation
30 Cartridges Missing:
• Color
• Black
Press Go to clear the error. Supplies status
appears on the display and the cartridge
missing shows in the supplies menus. This
remains until the user accesses the Tests Menu
to install a cartridge and fill the empty slots.