[1000mp] FT-1000MP Tx No Output

[Tod Olson]

Unless your multi-meter is an HP-410 (A, B,or C) that can measure RF
voltage you should probably find someone one with a scope [30 Mhz
bandwidth+]  and signal generator to work with. Maybe that is worth doing
even if you have a 410.

The old Œboat anchors¹ required signal generators and RF measuring
instruments when you needed to repair them. The big change is that if you
find a problem, you might find it very challenging to make a fix on one of
the boards with surface mount devices.

Troubleshooting the FT1000X units is one thing, repairing them sometimes
is very challenging and not a good idea for folks with hand tremors and
marginal electronic shop experience. Still, the units are worth repairing
because they work very well when everything is as it should be.

Tod, K0TO

{ I sent my FT1000MP off to be repaired by someone who does it all the
time }





On 6/11/14, 9:47 AM, "gary skillicorn" <garyskillicorn at hotmail.com> wrote:

>Thank you Morris, Vince, Bob, and Dan. I've been digesting all the ideas
>and suggestions. I guess I'm gearing up to do some disassembly and
>inspection armed only with a multi-meter. Everything seems so normal, Rx,
>PTT, Vc, Ic peaking 10-15 amps, function of the MOS, RF PWR & Mic Gain
>controls, modulation peaks on SSB, CW, and signal monitoring on a remote
>receiver; everything normal except no measurable RF output.
> 
>I keep wondering if I'm overlooking something stupid. There is something
>to be said about the simplicity of the old boat anchors and the warm red
>glow of vacuum tubes!   73's   Gary K3GS
>                                                    ***
>
>> On 6/11/2014 12:02 AM, gary skillicorn wrote:
>> > Looking for some help from the FT-1000MP experts. I'm a new owner of
>>an FT-1000MP but not new to amateur radio - first licensed 1960. I've
>>identified my observations to help diagnose the problem .
>> >
>> > - in the middle of a SSB
>> > QSO noticed the Po (power output) on the meter stopped
>> > indicating
>> >
>> >
>> > - no RF output showing on external SWR bridge with dummy load
>> >
>> > - receive is normal
>> >
>> > - on voice peaks the Ic (collector current) shows what I believe to
>>be normal
>> > high current indications
>> >
>> > - on a separate receiver I hear what I think is normal driver stage
>>output
>> >
>> > - no RF output on CW either (showing significant but
>> > probably normal Ic)
>> >
>> > - disabling auto ant tune with dummy load makes no difference
>> >
>> > - when the original outage occurred the cooling fan turned on
>> >
>> > -  switching between
>> > antenna connectors A and B has no effect
>> >
>> >
>> > -   a full reset
>> > had no effeect
>
>> > I'm assuming a PA problem, but since Ic seems normal, it is
>> > confusing. PA appears to be being driven yet no RF out. Anyone offer
>>some ideas of the cause and possible solutions?  Thank you in advance.
>> > 73's   Gary   K3GS
>> >
>
>
>
> 		 	   		  
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