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2-2. IC DESCRIPTION
IC401
System Controlle (yu PD75106CW-
190)
Pin Name
Description
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:
3
a meer eo
:
5
NC
NC
:
fe
ee
ras
qurnasncon |
10
TST
S
ia) - =] = oO
11
AUB-OUT
Audio BUS output.
«
Mute signal output (video)
Rear speaker relay (RY901) ON/OFF
control
output.
REAR~SP
Q Ly ies)
Video image input/output select
control output (1C501).
Q tt >
control output (1C502):
data latch output.
serial
data output.
Audio input/output select (IC118)
data clock output.
Power terminal
(+5V).
S
C
D
CL
Cc
NC
NC
NC
I
N
1
0
I
SW-OFF
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
ee lees audio input/output select
0-0
fein
PRESET 1 switch (S402) input.
PRESET 2 switch (S403) input.
I
|SET switch (S401) input.
33
34
35
36
40
SET-K
4l
A-SCN-3
function
switch.
System reset
input.
Ceramic oscillator generator
circuit (4.19 MHz).
43
A-SCN-1
44
A-SCN-
> o
>
ro)
bat 3
od
3
elle
td
4
Oo
>
=
(o>)
a oO
xX
=
DOWN signal output of volume motor
48
VOL-DWN
(RV801).
_
UP signal output of volume motor
NOEs OF
(RY801).
i
_
Position data scan output of video
ae
NGSEPNS3
function switch
52
VF-LED
53
PST1-L
54
PST2-L
PRESET LED (D472) control output
55
PST3-L
PRESET LED (D473) control output
Motor DOWN signal output of audio
function switch (FC301)
Video function LED control output
Motor UP signal output of audio
function switch (FC301).
PRESET LED (D471) control output.
oO
58
VF-DW.
function switch (FC302)
function switch (FC302)
output.
output.
59
VF-UP
B |
| 1s) ca
Z| 0
s
REAR-L
61
-L
62
VOL-L
63
DBFB~L
n
re
VSS
2
a
ee
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