Hello
Code F1 means
problem With Display to MCS communication system
Problem wiring between CPU board CN101 - 24 and CN1 and CN120 Display
And CN101 - 26 and CN1 and CN120 Display
Look first the wiring and connectors very good also the connector on display and on CPU
IN display only F1 !!!!
Not F1-1
F1-2 ore F1-3
Measerment on CN120 - 9 =positive and CN120-21= negative
what is the voltage there !!
Than Display !!
At least CPU Board defect
Kindly regards
John.
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