TDP-643R PLUS BAR CODE PRINTER
SERVICE MANUAL
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3. ELECTRONICS
3.1 Circuit Description
Fig. 3.1 MCU Circuit Diagram
The above is the MCU circuit diagram.
The main board of TDP-643R PLUS includes five system blocks:
A. Memory System (decoder & memory block)
B. Motor System (stepping motor and cutter block)
C. Print head System
D. Communication Port System (serial & parallel port block)
E. Power System
F. Sensor System
