Control Circuit; Overview Of Control Circuit Operation - Epson 2080 - LQ B/W Dot-matrix Printer Service Manual

LQ-2080

2.3 Control Circuit

The control circuit consists of the C273 Main Board assembly and C165
PNL board This section describes the major components and explains
how the boards work.

2.3.1 Overview of Control Circuit Operation

The printer's control circuit includes a TMP96C041BF CPU
that runs at 19.66 MHz, an E05B24YB gate array, a 1M bit
PS-RAM (8-bit bus, less than 100ns), a bit PROM (8-bit bus,
less than 100ns), CG (Standard Version) or CG (NLSP
Version). It oversees control of all the components in the
printer. The following chart shows you a block diagram of the
control circuit.
Operating Principles
Figure 2-1. Control Circuit Block Diagram
Control Circuit
Revision A
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