Technics SJ-HD501 Servise Manual page 52

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