On Fri, Apr 29, 2022 at 06:47 PM, Kevin Simpson wrote:
- With the Losmandy cable firmly planted in the female socket, I've attempted to measure voltage against the pins on the Gemini end of the cable, and nothing registers. ? The male plug doesn't sit super nicely in the female dongle, but no amount of manipulation and fiddling causes the light on the Gemini to light indicating power delivery.
Kevin, this sounds like your cable is bad. Can you use your voltmeter on the Gemini-side of the cable, with the cable unplugged from Gemini to see if there's 12v across either of the 12-18v pins and ground? If not, you'll need a new cable or fix this one. Usually a simple solder joint may have broken at the connector, easy enough to check and solder back. Sometimes the cable gets stressed or bent in a way that tears it in the middle, but that's less likely.

If you do get 12v at the Gemini-side of the cable, you'll want to use the voltmeter to check for internal blown fuses/diodes and the power switch, which is a bit more tricky and Brendan or others here can guide you through the steps.