Toshiba SD-170EKB2, Service Manual

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1-9
Remote reception is insensitive or fails.
No
Remote reception is
insensitive or fails.
Check battery
Check R1
ǃ
C1
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.
REM1(PIN1 - RC waveform)
Check if there is IR signal
on pin 134 of U1
Check if the power supply
voltage to the remote
censor is normal
Go
No
No
No
Yes
Yes
Yes
Correct connection
Yes
Change U1
IR waveform
Trouble shooting ch art
Check if the remote
control works properly.