[1000mp] Problem with my FT-1000MP

[Tom Homewood]

http://www.va3cr.net/1000MP/Problems/RepairsVCO.htm

This sounds like what happens when the VCO quits working. I have not seen it 
be intermittent before. Try changing bands when this happens to see if it is 
related to a range of frequencies. The VCO ranges are 0.1 to 3.999 mHz, 4.0 
to 7.499 mHz, 7.5 to 14.499 mHz, 14.5 to 21.999 mHz and 22.0 to 30.0 mHz.

What I found was that there are some leads on each VCO circuit that appear 
to be small inductors, you can't tell for sure because there is a metal 
shield over the top of this part of the circuit. The solder joints to these 
leads have given me problems on several of the VCOs. I just fixed the 10 
meter VCO yesterday. There are lots of surface mount parts on the VCO board. 
Look for wire leads. I think the basic problem is the leads have poor 
solderability and you eventually have the joint open.

73, Tom, W1TO


----- Original Message ----- 
From: "Sergio R Rubio" <srrkp4l at onelinkpr.net>
To: <1000MP at mailman.qth.net>
Sent: Friday, August 18, 2006 9:47 PM
Subject: [1000mp] Problem with my FT-1000MP


>I am using a FT-1000MP for about five years, mainly on CW; I installed the 
>YF-114CN 250 HZ filter since I bought the rig.  Starting about ayear ago, 
>the rig developed a problem: when moving the main dial, either way, it 
>sounds like scratches, either way, and sometimes, it stops transmitting and 
>receiving for a few minutes; the dial of the sub-receiver is not affected. 
>Then the problem disappears and the transceiver works OK for several days 
>or weeks.
>
> Last year I sent it to Yaesu Calif. twice and they could not find 
> anything, even when they had the transceiver on for several weeks.
>
> It is very difficult to locate the problem because it is highly 
> intermitent, and has happened to me only on CW.
>
> The main dial mechanism was also reviewed and it appears OK.
>
> Any suggestions?
>
> Sergio, KP4L ,srrkp4l at onelinkpr.net