Standard Horizon GX1250SA Service Manual page 11

No. Port name S.I/O
51 P03 / SEG19 I/O,SEG
52 P02 / SEG18 I/O,SEG
53 P01 / SEG17 I/O,SEG
54 P00 / SEG16 I/O,SEG
55 P37 / SEG15 I,SEG
56 P36 / SEG14 I,SEG
57 P35 / SEG13 I,SEG
58 P34 / SEG12 I,SEG
59 SEG11 O,SEG
60 SEG10 O,SEG
61 SEG9 O,SEG
62 SEG8 O,SEG
63 SEG7 O,SEG
64 SEG6 O,SEG
65 SEG5 O,SEG
66 SEG4 O,SEG
67 SEG3 O,SEG
68 SEG2 O,SEG
69 SEG1 O,SEG
70 SEG0 O,SEG
71 VCC SYS
72 VREF SYS
73 AVSS SYS
74 COM3 O,SYS
75 COM2 O,A/D
76 COM1 O,A/D
77 COM0 O,A/D
78 VL3 A/D
79 VL2 SYS
80 VL1 SYS
S.PD Signal name I/O Active Initial
---- SEG 4 O
---- SEG 5 O
---- SEG 6 O
---- SEG 7 O
---- SEG 8 O
---- SEG 9 O
---- SEG 10 O
---- SEG 11 O
---- SEG 12 O
---- SEG 13 O
---- SEG 14 O
---- SEG 15 O
---- SEG 16 O
---- SEG 17 O
---- SEG 18 O
---- SEG 19 O
---- SEG 20 O
---- SEG 21 O
---- SEG 22 O
---- SEG 23 O
---- VCC ----
---- VREF ----
---- Avss ----
---- NC ----
---- NC ----
---- COM 2 O
---- COM 1 O
---- VL3 I
---- VL2 O
---- VL1 O
P.UP/DN Function
---- ---- ---- Segment 4 Output Terminal
---- ---- ---- Segment 5 Output Terminal
---- ---- ---- Segment 6 Output Terminal
---- ---- ---- Segment 7 Output Terminal
---- ---- ---- Segment 8 Output Terminal
---- ---- ---- Segment 9 Output Terminal
---- ---- ---- Segment 10 Output Terminal
---- ---- ---- Segment 11Output Terminal
---- ---- ---- Segment 12 Output Terminal
---- ---- ---- Segment 13 Output Terminal
---- ---- ---- Segment 14 Output Terminal
---- ---- ---- Segment 15 Output Terminal
---- ---- ---- Segment 16 Output Terminal
---- ---- ---- Segment 17 Output Terminal
---- ---- ---- Segment 18 Output Terminal
---- ---- ---- Segment 19 Output Terminal
---- ---- ---- Segment 20 Output Terminal
---- ---- ---- Segment 21 Output Terminal
---- ---- ---- Segment 22 Output Terminal
---- ---- ---- Segment 23 Output Terminal
---- ---- ---- Power Switch Terminal
---- ---- ---- A/D Power Terminal (Connect to Vcc)
---- ---- ---- Ground Terminal
---- ---- ---- Not used
---- ---- ---- Not used
---- ---- ---- Common 2 Output Terminal (To COM2 of LCD)
---- ---- ---- Common 1 Output Terminal (To COM1 of LCD)
---- ---- ---- LCD Power Terminal (Connect to Vcc)
---- ---- ---- LCD Power Terminal (Connect to VL1)
---- ---- ---- LCD Power Terminal (Connect to VL2)
10
Table 2-1