HYT TC-508 Service Manual page 17

60 P17/SEG7
61 P20/SEG8
62 P21/SEG9
63 P22/SEG10
64 P23/SEG11
65 P24/SEG12
66 P25SEG13
67 P26/SEG14
68 P27/SEG15
69 P30/SEG16
70 P31/SEG17
71 NC
72 NC
73 NC
74 NC
75 NC
76 P32/SEG18
77 P33/SEG19
78 P34/SEG20
79 P35/SEG21
80 P36/SEG22
81 P37/SEG23
82 P40/SEG24
83 P41/SEG25
84 P42/SEG26
85 P43/SEG27
86 P44/SEG28
87 P45/SEG29
88 P46/SEG30
89 Vssd
90 Vddd
Reserve O
EN0 I
EN1 I
EN2 I
EN3 I
Reserve O
Reserve O
Reserve O
Reserve O
Reserve O
Reserve O
/ /
/ /
/ /
/ /
/ /
Reserve O
Reserve O
Reserve O
Reserve O
Reserve O
Reserve O
Reserve O
SCL O
SDA O
W/N O
LE O
DATA O
CK O
GND S
VCC（3.0V） S
Reserved
For detecting encode switch input
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
/
/
/
/
/
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
EEPROM clock pin (connected with pull-up
resistor)
EEPROM data pin (connected with pull-up
resistor)
Wide/ narrow band control pin (H: wide; L:
narrow)
PLL enable pin
PLL data pin
PLL clock pin
Power ground for digital circuit
Power supply for digital circuit
15
TC-508 Service Manual