Ricoh D146 Service Manual page 1219

Main SP Tables - 4
Latest: GO Color
Displays digital gain adjustment value (GREEN/ODD pixel).
White level adjust is done when scanner powers ON to keep the dynamic range
of image signal.
002
Image signal will be amplified or attenuated with white level adjust, therefore
gain adjust will be done by ASIC (SCAT) of SBU hardwarely, and adjusted value
will be given.
Use for design evaluation/analyzing cause of malfunction (abnormal image,
SC).
4663 [Digital Gain Adjust]
Latest: BE Color
Displays digital gain adjustment value (BLUE/EVEN pixel).
White level adjust is done when scanner powers ON to keep the dynamic range
of image signal.
001
Image signal will be amplified or attenuated with white level adjust, therefore
gain adjust will be done by ASIC (SCAT) of SBU hardwarely, and adjusted value
will be given.
Use for design evaluation/analyzing cause of malfunction (abnormal image,
SC).
Latest: BO Color
Displays digital gain adjustment value (BLUE/ODD pixel).
White level adjust is done when scanner powers ON to keep the dynamic range
of image signal.
002
Image signal will be amplified or attenuated with white level adjust, therefore
gain adjust will be done by ASIC (SCAT) of SBU hardwarely, and adjusted value
will be given.
Use for design evaluation/analyzing cause of malfunction (abnormal image,
SC).
D146/D147/D148/D149/D150
*ENG [0 to 1023 / 0 / 1digit/step]
*ENG [0 to 1023 / 0 / 1digit/step]
*ENG [0 to 1023 / 0 / 1digit/step]
2-500 System Maintenance Section