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3. CPU Pin Function
2
12G
Grid signal output for FIP.
D
+5V power supply.
Oo
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Q@)
2
NC
NC
Not Used!
PROTECT
Input for detecting "Protection" condition.
STEREO
Input for detecting "Stereo" condition.
7001CE
Chip enable signal output to LM7001.
| 15 | 9273CLK
Clock signal output for TC9273
17~
14
15
:
|
|
1
|.
lw]
2
5
i
DAil<
|
Cc
2l§
~A
10
A
QO
22
23
24
SPK OFF
input for detecting "Speaker Switch is Off' condition.
TUNED
Input for detecting "Tuned" condition. (At "L" it is active.)
:
STEP OPTION
According to region, input for selecting the frequency
bands and steps and FM and AM.
.
14
KEY IN1~3
Data input for key scan
9273CE
Chip enable signal output to TC9273
nN oa
—_
Oo
"
nN
~
wn
Oo
- 28
29
30
Ww
OO ine)
i)
=
@ |
2) "
35
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