– 30 –
Pin No.
Pin Name
I/O
Function
60
KEY IN4
I
Key input terminal RADIO SLEEP key input (S404)
61
KEY IN5
I
Key input terminal TIME SET/TRACK +
+
key input (S405)
62
KEY IN6
I
Key input terminal ALARM
A
key input (S406)
63
KEY IN7
I
Key input terminal CD
(
P
key input (S407)
64
KEY IN8
I
Key input terminal TIME SET/TRACK –
=
key input (S408)
65
KEY IN9
I
Key input terminal TRACK/CLOCK key input (S409)
66
KEY IN10
I
Key input terminal OFF ALARM RESET key input (S410)
67
KEY IN11
I
Key input terminal SNOOZE/SLEEP OFF key input (S411)
68
RESET
I
System reset signal input from the reset signal generator (IC402) “L”: reset
“L” is input for several 100 msec after power on, then it changes to “H”
69
S0
O
Segment drive signal output terminal Not used (open)
70 to 80
S1 to S11
O
Segment drive signal output to the liquid crystal display (LCD901)
Summary of Contents for ICF-CD820 - Cd/am/fm Stereo Clock Radio
Page 5: ... 5 ...
Page 15: ......
Page 16: ......
Page 18: ... 25 IC502 WFCK PLAY MODE 2 V DIV 100 µs DIV 5 Vp p 136 µs ...
Page 19: ... 26 IC Block Diagrams MAIN Board IC1 CXA1238M T6 ...
Page 20: ... 27 IC501 CXA1782BQ ...
Page 21: ... 28 IC502 CXD2508AQ ...
