GE Built in Double Oven F7

[rego]

Model: JKP27B0W1BB
Customer called this morning and had technician out a month or so ago with a F7 code.  Bad clock or stuck key.  He replaced the clock because it was cheaper.  Still same problem.  She has cleaned the ribbon in the past and fixed it but not this time.  The tech said he would have to replace the control panel now.  My question...it's a stuck key any suggestions on how to fix the stuck key.  Can the control be taken apart and cleaned?  Wondering for when I run into one so I can try to fix rather than replace.
If it were my call I would have disconnected the ribbon from the clock and turned back on and see if the F7 comes back if so it's the clock if not it's in the control panel...does that trick work with a GE?
Thanks

[krazytech]

Key Panel Test
The key panel is connected to the control by a
ribbon connector. The control will sound a tone
when any of the pads are depressed except for the
+/- pads.
To help isolate a problem to either the control or
key panel, depress each pad on the key panel
followed by the Clear / Off pad and observe the
following:
• Bake, Broil, Clean, Timer, Clock, Stop Time,
and Cook Time Modes - Audible tone plus
display showing mode of operation selected.
Control Voltage
• Clear / Off - Audible tone and display shows
time of day.
• +/- Pads - No audible tone. Can only be used
after another function pad has been selected.
If some of the pads work and some don’t, the
problem is probably with the key panel. To verify
that the key panel is the problem, check the
connector for proper insertion of the ribbon cable
and perform the Ohmmeter Test. If the ohmmeter
reads infinity W when depressing the pad, or
shows some resistance without depressing the
pad, the key panel is bad.

[krazytech]

Ohmmeter Test
If some of the pads work and some don’t, the
problem is probably the key panel. To verify that
the key panel is the problem, perform the Ohmmeter
Test. If the ohmmeter reads infinite ohms when
depressing the pad, or shows less than 1 MEG
OHM without depressing the pad, the key panel is
bad. The ohmmeter should read under 200Ω when
pressing a pad.
Set the ohmmeter on the scale that reads approximately
500Ω. Connect leads to ribbon cable as
indicated in chart for each function. Depress
function pad. Meter should read less than infinity
ohms if the switch contact is working.
Note: Conductors are not all on the same side.
Note: Replacement touch pads come as part of
the control panel.

[krazytech]

disconnect ribbon cable and power up if no f7 then it is the key panel...

[AJ]

31-9084 GE 27-In. Built-In Electric Wall Oven Service Manual

[rego]

Very cool, Thanks guys!