Author Topic: OUT0 ALWAYS ON  (Read 3933 times)


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« on: 2019-06-25, 22:19:17 »
Few days ago I had a lightning and now OUT0, which I use for PTT, is always grounded, even if the power is disconnected (therefore, it is not a logic related problem).
I can check on the relay and on the FDV301N (schematic, manual page 233).
Did anyone have a similar issue and there is anyone in USA who does service to the remoterig?


73, Max
73 de Max, N5NHJ (I8NHJ)
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« Reply #1 on: 2019-06-26, 07:33:13 »
Hi, there is no Relay in place, the output is wired direct to T1 (FDV301) via R123 (0 ohm). if you can measure that the level on the T1 gate is changing when activating out 0, the T1 can easily be replaced. But if the gate is not changing level then the CPU is damaged and the CPU is not repairable. There is no local service in the US, but if it's only T1 which is damaged you can replace it by your self.

73 de mike