EPSON
LQ-580
Revision
C
Operating
Principles
Circuit
Operation
56
2.3.4
C293 PNL Board Circuit
2.3.4.1
Switch Port
o
Switch
Numbers: 6
o
Logic
n
SW
On: Low
n
SW
Off: High
n
CPU
Terminal
PZ0: Font SW
PZ1: Pitch SW
PZ2: TearOff / Bin SW
PZ3: LF / FF SW
PZ4: Load / Ejects SW
PZ5: Pause SW
o
Functions:
Refer to Chapter 1.
2.3.4.2
LED Port
o
LED
Numbers: 9
o
Logic
n
Register
Setting H: LED Off
L: LED On
n
G/A
Terminal
LED1: FONT3L
LED2: FONT2L
LED3: FONT1L
LED4: PITC2L
LED5: PITC1L
LED6: TBIN2L
LED7: TBIN1L
LED8: POUTL
LED9: PAUSEL
o
Current
control resistance: 330
Ω
Summary of Contents for LQ-570e
Page 8: ...C H A P T E R 1 PRODUCT DESCRIPTION ...
Page 46: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 57: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 70: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 93: ...C H A P T E R 5 ADJUSTMENT ...
Page 101: ...C H A P T E R 6 MAINTENANCE ...
Page 106: ...C H A P T E R 7 APPENDIX ...
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