What's not working? My sounder died a few years ago, I sent it to them, they fixed it, updated the alarm module and it's been fine ever since. What's a manual gonna tell you if it isn't working?
Thanks Warren. I took it apart and found one diode bad and replaced it. It seems to be working now. I didn't have the manual to tell me how it operated. I appreciate the help. I am also going to replace the RCA jack because it is corroded. Other than that, it seems to be fine.
Had it on my old boat. Took 3 years to figure out the root cause. Very intermittent symptom = "---" on the display.
The RCA socket on the back of the diaplay goes to a pair of crimped connectors which plugs onto the citcuit board. The crimp was bad. Soldered them fixed it for good.
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