Specifications

REV.-B
1.7 MAIN COMPONENTS
The main components of the LQ-570/1070 printers are designed for easy removal and replacement
to maintain and repair the printer. The main components are:
1) CO62 MAIN board:
the main control board; the CPU on this board controls all main functions.
2) CO62 PNL board:
the control panel board.
3) CO62 PSB/PSE board:
the power supply board.
4)
M-5El0/5E60:
the printer mechanism.
CO6
CO62 MAIN Board
Printer Mechanism M-5E60
PrinterMechanism
M-5E 10
(LQ-570)
(LQ-1070)
Figure l-1 1. LQ-570/1 070 Component Layout
1.7.1 C062 MAIN Board (Main Control Circuit Board)
The CO62 MAIN Board for the LQ-570 consists of a TMP90C04 1 N g-bit CPU, an E05A50 gate array,
a PROM (5 12K), a PSRAM (256K), a mask ROM (character generator, 2M), an EEPROM, and
IC (STK-6022B). In addition to this, the board for the LQ-1070 also includes a SRAM (64K).
Mask ROM
/
M20A05 (3E)
CPU TMP90C04 1 (IC)
64K S-RAY (IE)\
STK-6022B (2A)
I
Y
256K PS-RAM (6E)
EEP ROM (4C)
a hybrid
(80 column)
(136 column)
Figure 1-12. CO62 MAIN Board (80 column and 130 column)
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