TROUBLESHOOTING
De lux e Control Cook & Hold ▪ Service Manu al ▪ MN -46 712 ▪ Rev 01 ▪ 11 /20
53
The Screen is not Responsive/Incorrect
Response to the Selected Icon
Is the touch glass damaged? (cracked, scratched, cut,
etc).
No
Replace the touch screen/display panel
assembly.
Yes
Inspect the touch controller board on the back of the
display. Is the connection or board damaged?
No
Replace the touch screen/display panel
assembly.
Yes
Inspect the I2C cable from the touch screen to the
interface board and check for continuity. Is the cable
damaged (kinked, ripped, cut, etc) or do any of the
wires not have continuity?
No
Replace the I2C cable.
Yes
Re-install the I2C Cable connection at the interface
board and at the touch controller board on the
display. Does the screen respond now?
No
Bad cable connection.
Yes
Replace the interface board. Does the screen respond
now?
No
Bad interface board.
Yes
Replace the touch screen/display panel assembly.
Screen should now respond.
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