Manual Toshiba RAS-10YA-HX RAS-07YKX-T (page 36 of 59) (English)

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9-3. Troubleshooting Flowcharts

9-3-1. Power can not be Turned on (No Operation at All)

(1) Is the supply voltage normal?

(2) Is the connection to the AC output OK.?

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.

P.C. board

is defective.

Symptom

Operation

Check Items

Main cause

Countermeasure

Shut off the power supply

from AC outlet once and

turn it on after 5 seconds.

Does the OPERATION

lamp blink?

Does the transmission

indicator of remote

control flash normally and

transmit certainly?

Remote control

is defective.

Replace the

remote control.

(No problem)

Does the fuse

(F01) blow?

Replace the main

P.C. board.

Wrong wiring of

AC cord or connecting

cable is defective.

Replace the

thermal fuse set.

Check connection.

Is the indication voltage

(DC12V or 5V) of main

PC board correct?

Is the voltage

across C02 measured

DC310V~340V?

Refer to the paragraph

“Pre-check”, or defective circuit

before power P.C. board block.

Shut off the power

supply once, and turn

it on again after dis-

connecting the motor

connector CN10

Is the

secondary voltage

of SW transformer

measured DC12V,

and DC7V?

Motor is defective.

Is the secondary

voltage of SW

transformer (T01)

measured DC12V,

and DC7V ?

YES

SW transformer

(T01) or Tr (Q01)

for power supply

is defective.

Parts (R21, R22, SG01,

C15, C01, DB01, C02,

Q01, T01) are defective.

Does the power turn

on by pushing the

[START/STOP] button

of the remote control?

YES

NONO

YES

Does the CN13

connector the wrong

connecting?

Does the thermal

fuse blow?

(Under PF. Terminal)

Replace the main

P.C. board.

Re-wiring the cable.

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Toshiba RAS-10YA-HX RAS-07YKX-T Manual

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