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Galaxy Saturn Repair: Frequency counter has no readout or display | Radioaficion Ham Radio

Galaxy Saturn Repair: Frequency counter has no readout or display

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CB Galaxy Saturn Repair Tips: Frequency counter has no readout or display

First check that the 13.8 volt supply is available and constant on pin 1 of IC609 ( LM7808 regulator ) . Next check for 8.04 volts on pin 3 of IC609 ( LM-7808 regulator ). If this voltage is absent then IC609 is defective and will need to be replaced. After replacing IC609 and before applying power to the unit you should also replace C612 with a 200uF 16V electrolytic. Sometimes C612 - (220|if 10V electrolytic) - will develop a short, and this will cause the premature failure of IC609. This should restore normal operation and prevent future problems occurring.

CB Galaxy Saturn Repair Tips: Frequency counter has no readout or display

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