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CDM1550 that gives self test tone constantly
Posted: Sun Aug 01, 2010 5:17 am
by Jay
I've got a CDM1550 that someone brought to me to troubleshoot. All it will do is cycle give the power up test tone sequence, then cycle down and repeat. Swapping a new head on the radio fixes the problem. This was caused by an improperly wired programming cable.
Any idea what in the head could be the cause?
Jay
Re: CDM1550 that gives self test tone constantly
Posted: Sun Aug 01, 2010 6:06 am
by Bill_G
Are the mic jack pins combed out correctly, or did the other cable tangle a couple together?
Re: CDM1550 that gives self test tone constantly
Posted: Sun Aug 01, 2010 9:59 am
by Jay
Yep, the connector is OK. Programming cable was wired incorrectly (pin 1 and 8 used instead).
Re: CDM1550 that gives self test tone constantly
Posted: Sun Aug 01, 2010 11:54 am
by Bill_G
Pooper scoopers. Not a super simple fix. I'll have to look at a schematic to see what goes where.