1.7 Main Components; C107 Main Board (Main Control Circuit Board); Figure 1-11. Lq-570+ Component Layout; Figure 1-12. C107 Main Board - Epson LQ-570 Service Manual

REV.-A

1.7 MAIN COMPONENTS

The main mmponents of the LQ-570+ printer are designed for easy removal and replacement at maintenance and
repair of the printer. The main composed of this printer are:
1) C107 MAIN board:
2) C062 PNL board:
3) C062 PSWPSE board: the power supply board.
4) M-5J1O:

1.7.1 C107 MAIN Board (Main Control Circuit Board)

This consists of a TMP90C041N 6-bit CPU, an E05A50 gate array, a PROM (512K), a mask ROM (character
generator, 2M), Head Gate Array, an EEPROM, a CR Driver, a PF Driver and Head Drivers.
" MASKROM(IC17)
,
the main control board; the CPU on this board controls all main functions.
the control panel bowd.
the printer mechanism.

Figure 1-11. LQ-570+ Component Layout

CPU TMP90C041(IC21)
\ \

Figure 1-12. C107 MAIN Board

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