Video Controller Operation; C205 Main Board Operation - Epson EPL-N1200 Service Manual

EPL-N1200 Service Manual

2.2 VIDEO CONTROLLER OPERATION

The video controller section generates the video signals for the received data. The video controller
section is separate in the C205 MAIN board and the control panel. The control panel is connected
to the engine controller board (PWB-A), but is controlled by the C205 MAIN board, which sends the
signals for the control panel through the engine controller board.

2.2.1 C205 MAIN Board Operation

Figure 2-27 shows a block diagram of the C205 MAIN board. The C205 MAIN board contains the
video controller, which consists of a MB86930 (SPARKlite, 20 MHz, 32-bit bus) RISC CPU, the
standard cells developed for this printer, RAMs, ROMs, and a EEPROM.
Figure 2-27. C205 Main Board Block Diagram
Rev. A
Figure 2-26. Video Controller Section
Operating Principles
Control Panel
PWB-A Board
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