Epson LQ-1170 - Main Components; C060 MAIN Board (Main Control Circuit Board); Figure 1-11. LQ-870;L 170 Component Layout; Figure 1-12. C060 MAIN Board

REV.-A
1.7 MAIN COMPONENTS
The main components of the LQ-870/l 170 are designed for easy removal and replacement during
maintenance and repair. The main components are:
1)
C060 MAIN board:
the main control board; the CPU on this board controls all the printer’s
main functions.
2) C060 PNL board:
the
3)
C060 PSB/PSE board: the
4)
C060 DRV board:
the
5) M-5D
10\5D60:
the
control panel board.
power supply board.
drive board.
printer mechanism.
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Figure 1-11. LQ-870/l 170 Component Layout
1.7.1 C060 MAIN Board (Main Control Circuit Board)
The C060 MAIN board consists of a TMP90C041 N 8-bit CPU, an E05A494B gate array, a PROM
(5 12K), a PSRAM (256 K), a mask ROM (character generator,
2M), and an EEpROM.
----
( ..”
Gate Array E05A49B (4B)
CPU TMP90C 041 N (2C)
,
EEPRO
CGROM ( 1A)
P-ROM (3A)
TTL (6A)
MASK ROM
M65256 (4A)
Figure 1-12. C060 MAIN Board
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