Epson FX-870 Service Manual - Page 133
Function, Not equipped, FONT LED, CONDENSED LED, PAUSE, PAPER FEED BUTTON, OPERATE, Signal Ground
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REV.-A Table A-8. CN8 (BOARD ASSEMBLY, C094 MAINI - No Function - 1 o HD2 2 o C246 3 o HD6 4 o HD8 5 o HD4 5 o HD9 7 I TMP 3 o C789 3 o TMP I 10 o HDI 11 o HD3 12 o HD5 13 o HD7 14 o C135 - Head Data 2 Head Drive Common Head Data 6 Head Data 8 Head Data 4 Head Data 9 Head Temperature Head Drive Common Head Temperature Head Data 1 Head Data 3 Head Data 5 Head Data 7 Head Drive Common Table A-9. CN9 (BOARD ASSEMBLY, C094 MAIN) No. 1/0 Signal Name Function 12I 3I GND PER LED Signal Ground Paper End, REAR Paper End, LED Table A-n. CN13 (BOARD ASSEMBLY, C094 MAIN) ., f No. 1/0 Signal Name Function 1 0 CR A 2 0 CR ~ 3 0 CR B 4 0 CR ~ 5 0 CRCOM CR Motor Phase A CR Motor Phase ~ CR Motor Phase B CR Motor Phase ~ CR Motor Common Table A-12. CN14 (BOARD ASSEMBLY, C094 MAIN) No. 1/0 Signal Name Function 12345678910 11 - +5 +5 GND GND GND GP GP GP +35 +35 Psc +5 VDC +5 VDC Signal Ground Signal Ground Signal Ground Power Ground Power Ground Power Ground +35 VDC +35 VDC Power Switch Signal Table A-10. CN12 (BOARD ASSEMBLY, C094 MAIN) No 1/0 Signal Name Function f...-'.,.: 1 2o 30 40 50 6I 7I 8I 9I 10 +5 READY STAT FONT COND PAUSE FONT PFEED OPERA GND +5 VDC READY LED STAT LED (Not equipped FONT LED CONDENSED LED PAUSE BUTTON FONT BUITON PAPER FEED BUTTON OPERATE BUTTON Signal Ground A-4