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1.5 MAIN COMPONENTS
The main components of the Stylus Pro XL are:
Printer mechanism (M-4A60)
Main control board (C162 MAIN Board)
Power supply unit (C137 PSB/PSE Board)
Control panel board (C137 PNL Board)
Housing
1.5.1 Main Control Board (C162 MAIN Board)
The Main Control Board (C162 MAIN Board) consists of an H8/3003 16-bit CPU, E05A96 gate array, a
program ROM (4M), a dynamic RAM (4M), a mask ROM (4M or 8M), an EEPROM (1K), and a lithium
battery for powering the protect counters. The reset IC (M51955 and PST 592) is equipped with both a logic
system and a power system. The 8M program ROM is used only for the NLSP (National Language Support
Printer) specification.
GA E05B09 (IC2)
CPU (IC1)
4M DRAMs
(IC5, 6)
Program
ROM (IC3)
Mask ROM
M160A69
(IC16)
Mask ROM
M80B00
(IC17)
Figure 1-9. C162 MAIN Board Component Layout
Stylus Pro XL Product Description
Rev.A 1-19