Hitachi RAS-25QH1 Technische Information Seite 221

CHEKCING THE REMOTE CONTROL SWITCH
Is battery polarity right? install the battery in the right polarity.
Yes
Is the battery check sign Replace the battery.
flashing?
Turn on an AM radio, bring
the remote contro! switch within
15 cm of the radio, and press
the ON/OFF button.
Check the LED (D1) with
Does the radio buzz noisily? :
a multimeter.
Check the remote control signal
receiving P. W. B..
if it is good, check the main P. W. B..
[AM radio]
You can check the remote control switch by
other methods as explained below.
Using the test card
Ultra redray test card
Sensible area
Check functions again.
If it does not work, replace
The sensible area should fiash in orange when you
Operate the remote control unit if it is good.
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