Cooling Model - Toshiba RAS-13UKHP-E4 Service Manual

Cooling Model

NO
Does the fuse
(F01) blow?
NO
Does the thermal
fuse blow?
(Under PF. Terminal)
NO
Is the indication voltage
NO
(DC12V or 5V) of main
P.C. board correct?
YES
Is the voltage
NO
across C50 measured "Pre-check", or defective circuit
DC12V ~ 15V? before power P.C. board block.
YES
Shut off the power
Is the secondary
supply once, and turn
NO
voltage of
transformer (TT-10)
disconnecting the motor
measured DC10~16V?
connector CN10*.
YES
* Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor.
Shut off the power supply
from AC outlet once and
turn it on after 5 seconds.
Does the OPERATION
lamp blink?
YES
Does the power turn on
NO
by pushing the [
]
button of the remote
control?
YES
Parts (R21, R22, SG01,
YES
C15, C01, DB01, C50,
TT-10) are defective.
Wrong wiring of
YES
AC cord or connecting
cable is defective.
Does the CN14
connector the wrong
connecting?
Refer to the paragraph
Is the secondary
voltage of
it on again after
transformer
measured DC10~16V?
Does the transmission
indicator of remote
control flash normally
and transmit certainly?
YES
(No problem)
NO
P.C. board is
defective.
YES
transformer (TT-10)
NO
for power supply is
defective.
YES
– 62 −
FILE NO. SVM-05001
Operation
Check Items
Main cause
Countermeasure
Symptom
NO
Remote control is
defective.
Replace the remote
control.
Replace the
thermal fuse set.
Check connection.
Replace the main
P.C. board.
Re-wiring the cable.
Replace the main
P.C. board.
Motor is defective.