Chekcing The Remote Control Switch; Is Battery Polarity Right? - Hitachi RAS-25CNH1 Service Manual

CHEKCING THE REMOTE CONTROL SWITCH

Is battery polarity right?

Does transmission mark
stant when the button is pressed?
Turn on an AM radio, bring
the remote control switch within
15 cm of the radio, and press
the Start / Stop switch.
Does the radio buzz noisily?
Check the remote control signal
receiving P. W. B.
If it is good, check the main P. W. B.
No
Yes
Yes
light for an in-
No
No
Yes
Install the battery in the right polarity.
Replace the battery.
Check the LED (D1) with a multimeter.
"Buzz"
Within 15 cm
[AM radio]
Check functions again.
If it does not work, replace
the remote control switch.
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