Toshiba RAS-M10U2MUVG-E Service Manual page 56

(4) Troubleshooting for remote control
Is the signal
NO
receiving unit exposed
to direct sunlight?
YES
Is there any thyristor
fluorescent light
Avoid direct
Keep the signal
sunlight.
receiving unit away
fluorescent light.
YES
NO
nearby?
YES
Does indoor unit
NO
start to operate by
automatic restart
function?
YES
Does radio sound is
affected by remote
control when a
signal is transmitted
at distance of 5 cm
from radio?
P.C. board is
defective.
Replace P.C.
board.
from thyristor
Press [ ]
button.
Is transmission
mark indicated?
Does indoor unit
operate when
NO
moving remote
control near receiver
or indoor unit?
YES
Batteries are
exhausted.
NO
YES
Replace
batteries.
– 56 –
The unit does not beep at all.
OPERATION lamp on indoor
unit is not indicated.
NO
Press RESET button
on remote control with
tip of pencil.
Press [ ]
button.
NO
Is transmission mark
indicated?
YES
Does indoor unit
beep and operate?
YES
Remote control
is defective.
Normal
operation remote control.
Replace