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Service Manual Combics
Repairs | Component Replacement | Main Digital PCB
Replacing the Main/Digital PCB
If the main/digital PCB is defective, then it must be replaced.
Before replacing the digital PCB, you should attempt to read the converter controller
using the H8S service software SartoCas H8S to enable you to load the old calibration/
adjustment data from the old weighing system to the controller of the new AD converter
after replacement.
In many cases, this negates the need to readjust the weighing system.
If the PCB has to be replaced, the current software is already factory installed on the PCB.
Important!
h
One of the Com 1 PCBs YDO01M-232 or YDO01M-232CLK is required to load
the software.
The back light of the display must flash after installation and setup of the new
digital PCB.
t Remove all plug connections.
t Remove the marked screws.
t Replace the PCB.
t Reinstall the screws.
t Reinstall all plug connections.
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