Posted by BeatleFred on September 21, 2003 at 12:57:15:
In Reply to: "protector" light on 9090 reeceiver posted by Michael Guzzio on September 20, 2003 at 04:48:45:
Here are some causes for a flashing
1. DC on the output caused by fault in the output stage.
2. Shorted transistor in the protection circuit, either in the output
stage or relay drive/protection circuit.
3. Open capacitor in the protection circuit causing false tripping of
the protection circuit.
4. Open or high value emitter resistor.
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