Epson Stylus 1500 Service Manual page 162

Appendix
Table A-7. Connector Pin Assignments – CN6
Pin I/O
1 O
2 O
3 O
4 O
Table A-8. Connector Pin Assignments – CN7
Pin I/O
1 —
2 O
3, 4, 5,
O
6, 7
8, 9, 10,
11, 12,
—
16, 18,
20
13 I
14 —
15 I
17 O
19 O
21 O
22 —
Table A-9. Connector Pin Assignments – CN8
Pin I/O
1 I
2 I
3 I
4, 5 —
6, 7, 10,
—
12, 14
8 I
9 O
11 O
13 O
15 I
16 —
A-8
Name
PFA Phase A drive signal
PF B Phase B drive signal
PF/A Phase A drive signal
PF/B Phase B drive signal
Name
VHV Head drive voltage VH
NCHG Head ON signal for black head
COM Common voltage for printhead drive
GND Ground
TH Thermistor signal
VDD Power supply for black head driver
CO Black cartridge out sensor
SI Black head serial data output
LAT Latch signal for black head
CLK Clock signal for black head
FG Frame ground
Name
ID3 ID 3 signal
ID2 ID 2 signal
ID1 ID 1 signal
COM Common voltage for printhead drive
GND Ground
ID4 ID 4 signal
SI Color head serial data output
LAT Latch signal for color head
CLOCK Clock signal for color head
CO Color cartridge out sensor
VDD Power supply for color head driver
Description
Description
Description
EPSON Stylus 1500 Service Manual