31
Pin No.
Pin Name
I/O Function
45 FRECSW I Tape forward/reverse record sw input
/ 1.7V (2k4) = frecsw on & rrecsw on
RRECSW 2.25V (3k9) = frecsw on & rrecsw off
2.89V (6k8) = frecsw off & rrecsw on
5V = frecsw off & rrecsw off
46 PLAYSW I Tape play/tape in sw input
/ 1.7V (2k4) = play sw on & tape in sw on
TAPEIN 2.25V (3k9) = Play sw on & tape in sw off
2.89V (6k8) = Play sw off & tape in sw on
5V = play sw off & tape in sw off
47 AMS I Tape music search input (HI = music)
48 AREF I A/D convert refrence input (+5v)
49 AGND I A/D convert Input GND input
50 GND I GND
51 VDD I +5V
52 OPEN O CD loading open motor on
53 CLOSE O CD loading close motor on
54 POWER O System power output
55 MUTE-A O Audio mute cuntrol output
56 SEG35 O
57 SEG34 O
58 SEG33 O
59 SEG32 O
60 SEG31 O
61 SEG30 O
62 SEG29 O
63 SEG28 O
64 SEG27 O
65 SEG26 O
66 SEG25 O
67 SEG24 O
68 SEG23 O LCD segment output
69 SEG22 O
70 SEG21 O
71 SEG20 O
72 SEG19 O
73 SEG18 O
74 SEG17 O
75 SEG16 O
76 SEG15 O
77 SEG14 O
78 SEG13 O
79 SEG12 O
80 SEG11 O
81 SEG10 O