[Amps] Titan 425 will not turn on

[Jim Brown]

There is a nearly complete set of schematics on my website. 
k9yc.com/publish.htm  I put them together about 10 years ago to help 
myself with troubleshooting the keying logic in one of the three I own.

The power switch is on the RF deck. Power is interlocked -- there are 
one or two micro-switches at the rear of the RF deck, so the top cover 
must be firmly in place (with the rear-most screws tight) for the 
switches to make so the amp can turn on. I don't remember if there are 
any in the PSU.

73, Jim K9YC

On Sat,10/22/2016 3:55 PM, Ken Asmus wrote:
> I am trying to sell some equipment from a local ham who is ill. One of the
> items received is a Ten-Tec Titan 425 amp.
>
> This amp does not power up. Fuses on the external power supply are ok. The
> High Voltage interconnect cable is ok.
>
> There does not appear to be a power switch on the external amp. Is the
> external power supply controlled from the main amp or is it always on when
> connected to AC?
>
> Any suggestions on where to start?
>
> Thanks,
> Ken VA3KA
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