KPOWERSCIENCE KP3828 Series, Maintenance Manual

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8-6
Procedure Points to be checked Remedy Checking method
5 Is the KMPU board
normal? Is YES, go to 6.
If NO, check the
output of the DC
power supply and
then replace the
KMPU board.
Disconnect jack J9 from connector
CN9 of the KMPU board and check the
following 2 points.
Change to Engine Checker Mode (see
“
5-4 Checking Individual Engine
Status ”). On MAINTENANCE menu,
select OPERATION sub menu and then
select “08: SPLIT-REAR” or “09:
SPLIT-HOME” to perform the going
or return operation of the splitter.
Bring the positive lead of a digital
multimeter in contact with pin 25 of
CN9 of the KMPU board and the
negative lead in contact with PG (pin
12), and measure the voltage.
If normal, the voltage will become
approximately 24 V upon one going
operation in which the splitter is driven
from the front to the rear side.
Bring the positive lead of a digital
multimeter in contact with pin 26 of
CN9 of the KMPU board and the
negative lead in contact with PG (pin
12), and measure the voltage.
If normal, the voltage will become
approximately 24V upon one return
operation in which the splitter is driven
from the rear to the front side.
6 Is the splitter motor
normal? If NO and the
motor will not
operate, replace the
splitter motor.
If the splitter does
not stop, replace
the KMPU board.
Connect jack J9 to connector CN9 of
the KMPU board and check the
following 4 points.
Is the splitter moved from the front side
to the rear side by the operation of the
splitter motor (going operation)?
Does the splitter stop at the rear side
after this operation?
Is the splitter moved from the rear side
to the front side by the operation of the
splitter motor (return operation)?
Does the splitter stop at the front side
after this operation?