AGFA d-lab.3 Digital Compact Lab

Repair
Printer
Operating Voltage Supply
The printed circuit E_GS01 gets its supply voltage
through the SPI interface ST1 as source voltage of
+6,5V. This voltage is stabilised to +5V by a linear
regulator and supplies the Controller and the light
sensors.
The power voltages +24V and +36V are supplied
through ST24. These voltages are led to circuit that
serves as current limitation when the module is
plugged under power.
− The +24V are used to energise the feed and exit
roller drive (DC motor) and the polygon drive.
− The 36V supplies all stepper motor drives. This
voltage is also used to derive via a switching
regulator an additional +5V for the output stage
supply, the supply of the sub- controller and the
shift register.
This way, the power unit is electrically separated by
the logic part of the Controller and by this of the
whore Printer. The signal transmission is ensured by
corresponding optocouplers.
A comparator circuit provides for a status signal of
the three supply voltages.
Controller Firmware Update
In addition to the provided Update option via the SPI
interface, the Controller can be programmed
separately via ST2. The sub-controller can only be
programmed on-board by means of a suitable PIN-
Adapter.
Debug Connection
A non real time-capable RS232 monitor output is
available on ST3 for Debut purposes.
AGFA d-lab.3 2001-01-02 /PN 9009 6.3.41