Toshiba SD-270EKB2 Manuale di servizio - Pagina 12
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Remote reception is insensitive or fails.
Remote reception is
insensitive or fails.
Check if the remote
control works properly.
Check
supply voltage to the
remote censor is normal
Use an oscilloscope to check
if there is output waveform
from the first pin IR of the
remote censor after pressing
button on the remote control.
Check if there is IR
signal on pin 134 of U1
Correct connection
Go
Yes
if
the
power
Yes
Yes
No
1-9
No
Check battery
No
Check R1 C1
No
REM1(PIN1 - RC waveform)
Yes
Change U1
IR waveform
Trouble shooting chart