[amsat-bb] Re: FT-847 Disaster

Jim Jerzycke kq6ea at pacbell.net
Mon Dec 24 15:04:55 PST 2007

IIRC, the 847 has a "protection" diode across the DC
input. Connecting the DC backwards will blow the fuse,
and probably short the diode.
You can download the service manual from the mods.dk
73, Jim  KQ6EA

--- k7zt at suddenlink.net wrote:

> Hi All:
> I'm afraid that I reversed the DC Polarity to my
> FT-847.  Needless to say, "the smoked leaked out",
> therefore, the 847 has ceased to operate.  
> I understand that the 847 has protection for
> careless hams like myself.. I was hopping that
> someone on the board has had this experience (no
> need to reveal). Or if someone could let me know
> what may need to be replaced to get my radio back in
> working order.
> Many Thanks,
> - Joe Westbrook, K7ZT
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