Technics SJ-HD501

Pin
No.
Mark I/O
Division
Function
27
~30
P73
~P70
I Not used, connected to
power supply through
resistor
31
~34
P47
~P44
— Not used, connected to
power supply through
resistor
35 P43 — Not used, connected to
GND
36 P42 I Model select terminal
37 P41 O FL segment control signal
output terminal
38 P40
39
~46
P37
~P30
47
~62
P27
~P10
63 VCC I Power supply input
terminal
64 P07 O FL segment control signal
output terminal
65 VSS — GND terminal
66
~72
P06
~P00
O FL segment control signal
output terminal
73 P57
74 P56 O Q905 drive signal output
terminal
75 P55 Q904 drive signal output
terminal
76 P54 Q903 drive signal output
terminal
77
~80
P53
~P50
O FL grid control signal
output terminal
81
~88
P67
~60
89 -VP I Power supply input
terminal
90 P107/
AN7
I Not used, connected to
GND
91 P106/
AN6
92 P105/
AN5
I Key switch input terminal
93 P104/
AN4
94
~96
P103/
AN3
~P101/
AN1
— Not used, connected to
GND
52