[1000mp] Malfunctioning MP.

[Garry Shapiro]

I have an MP issue I cannot resolve without help.

In an email to this list several weeks ago, I described a problem with 
the LCD display in an FT1KMP which had been idle for about a year. Six 
segments were stuck ON in the VFO A frequency display--3 each on the 
tens and ones digits. Another listee offered a display from his MP that 
was damaged in transit on a DXpedition for a nominal price. I  took the 
offer and installed the replacement display last night.

The replacement display works fine--but the radio does not. I used this 
radio in early October in the Cal QSO Party from my contest location a 
few hours away; at that time it worked fine, except for the display. I 
did not check it when I brought it home, nor before replacing the 
display, so I do not know whether the problem is independent of the 
display replacement. I did replace the original display--if anything, 
even less functionality--and then again installed the replacement display.

Symptoms

A substantial number of buttons do not function (no beep, no function):

    * Bandwidth group. I have a full complement of filters; none of the
      BW selections work, nor does the IF selector.
    * Mode group. CW and AM buttons do not work at all. RTTY, Packet,
      USB and AM buttons select 2.4 kHz filters; FM selects 6 kHz.
    * Meter group: the IC/SWR button does not work; the other two
      buttons do.
    * Antenna selector group; non-functional
    * VFO A/VFO B: RX and TX buttons/indicators are lit but do not
      respond. DUAL engages VFO B and lights the Sub-VFO LCD. FAST and
      LOCK are OK.
    * Keypad and Memory group: VFO/MEM, A>B, A><B, M>A, M CK, A>M,
      RPT--the top two rows---do not function, but SPLIT does. SPLIT
      also moves the TX focus to VFO B--but TX focus cannot be moved
      back to VFO A. RCL appears to work, but STO does not. DUAL appears
      to work. In the keypad itself, 1 through 6 (1.8-18 MHz) do not
      work, but (21 MHz) through ENT do--with a caveat. See below*.
    * Right side: Tuner buttons and NOTCH do not work; NB1, NB2, MEM
      GROUP and the MEM/VFO CH selector work. EDSP does not work.
    * Bottom: Nothing to the right of VFO-A works.

As far as I can tell, the receivers work--they hear signals; the radio 
appears to go into TX mode, but there is no output.

The only part of the radio worked on was the display, which required 
folding down the front panel. When I swapped and reswapped display 
boards, I did check all connectors and ribbon cables. I am certain that 
there are no misplaced connectors, and I repeatedly reinserted and 
tested all ribbon cables. (I am experienced in electronics and am 
comfortable working on this stuff.)

*Here is the kicker. I cannot reset the radio! Although the bottom three 
buttons on the keypad function, I cannot perform any of the three resets.

I am stumped. Can anyone intimately familiar with MP's offer some 
suggestions--including to whom to send the radio?

Garry, NI6T