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12.
Troubleshooting
There are two LEDs inside the tuner that can be helpful in troubleshooting. Remove the screws
on the sides of the tuner, and carefully remove the top.
Exercise extreme caution when using the tuner with the cover removed: high RF voltages
may be present during operation. Touch no part inside the tuner while transmitting!
•
On reset, the LEDs blink green - red - green. In normal operation you should see this only
at power-up.
•
The green LED lights when the unit receives a serial interrupt and "wakes up", then goes
off when the unit goes back to "sleep". In normal operation, the green LED will blink on,
then off with each serial command.
•
The red LED lights when RF is present. It goes off when the unit goes back to sleep.
•
The green LED pulses on and off during a memory clear.
