Hitachi RCI Service Manual page 241

7 Test run
Set the operating mode by pressing the MODE button. TEST
RUN mode is operational.
Start the test run using the RUN/STOP button. When the unit
receives the commands, the yellow LED will light up for a moment.
Check that the device has received the commands and that the
selected mode is correct.
In test run mode, the red LED lights up and the green TIMERLED
flickers.
N O T E
In the case of the RPK model, the TIMER LED is off.
If the yellow LED does not light up, the remote control commands
may not have reached the receiver. Send the commands again.
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SMGB0063 rev. 1 - 10/2010