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This code indicates a Main PWB type mismatch error Defective PWB. The correct part number for the 40/50 ppm machine is 302GR94121. Did you by chance order 302GN94010, the 30ppm board?
Hello . thank you for your answers;
the card received and installed is removed from KM5050 and the reference on the pwb is 2GR0102. it's the same reference to the one on my machine.
yes i have to install old eeprom on the new pwb engine
Did you re-load firmware? The chances of your replacement board having the same exact compatible level of firmware is very low.
These boards are not-married to the machine, so it is OK to swap boards. Are you sure the EEPROM got swapped to the replacement board, installed with the notch in the correct direction, all the legs intact? It may be a bad EEPROM.
=^..^=
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