GE JKS10 Technical Service Manual page 53

Model JKP55
Note: The key panel and the electronic control are separate components and must be tested individually.
Press each pad on the key panel followed by the Clear/Off pad. If the key panel is functioning properly, the
following should occur:
• Bake, Broil, Clean, Timer, Clock, and Cook Time Pads – Audible tone plus display showing the mode of
operation selected.
• Clear/Off – Audible tone and display shows the time of day.
• Oven Light – The oven light turns on. An audible tone and a relay click should be heard.
• Hour, Minute, Temp Pads – Can only be used after another function has been selected.
Model JKP70, JKP75, PK916, PK956, ZEK938, & ZEK958
Note: The key panel and the electronic control are separate components and must be tested individually.
Press each pad on the key panel followed by the Clear/Off pad. If the key panel is functioning properly, the
following should occur:
• Bake, Broil, Convection Bake, Convection Roast, Clean, Warm, Proof, Timer, Clock, and Cook Time pads –
Audible tone plus display showing the mode of operation selected.
• Clear/Off – Audible tone and display shows the time of day.
• Probe – Audible tone is heard if the probe is plugged in. The display will show Probe.
• Oven Light – The oven light turns on. An audible tone and a relay click are heard.
• Number pads – Can only be used after another function has been selected.
Check the control panel for delamination to make sure that the touch board is not separating from the glass.
Next, check to make sure that the resistance is infi nitely high between ALL pins. Any impedance implies a
faulty keyboard.
Model JKP90
Note: The key panel and the electronic control are separate components and must be tested individually.
Press each pad on the key panel followed by the Clear/Off pad. If the key panel is functioning properly, the
following should occur:
• Bake, Broil, Timer, Clock, and Cook Time pads – Audible tone plus display shows the mode of operation
selected.
• Clear/Off – Audible tone and display shows the time of day.
• Number pads – No audible tone. Can only be used after another function has been selected.
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