Probably there are white stripes in some developing unit that avoid right reading of gamma sensors. Disable the sensor by changing dip sw 24-3 to 1, and look for the stripes.
Good luck.
thanks for your advise
the colour reproduction was not to good when the dipsw was off and this was the main concern the customer has
however we managed to sort the Sc2906 by replacing the PRCB board
thanks.. will keep your info in mind for future fixes
Linear Mode
