JVC KD-SX980 Service Manual page 28

Cd receiver
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KD-SX980
QQ
3 7 63 1515 0
UPD784215AGC175 (IC701) : Main micon
1.Pin layout
100 ~ 76
1
~
25
26 ~ 50
2.Pin functions(1/2)
Pin No.
Symbol
1
CD RESET
2
CD MUTING
3~7
-
8
ANT CONT
9
VDD
10
X2
11
X1
12
VSS
13
XT2
14
XT1
15
RESET
16
CD REQ
17
BUS-INT
18
PS2
19~21
TE
-
L 13942296513
22
REMOCON
23
AVDD
24
AVREF0
25
VOL1
26
VOL2
27
KEY0
28
KEY1
29
KEY2
30
LEVEL
31
-
32
SM
33
AVSS
34,35
-
36
AVREF
37
BUS-SI
38
BUS-SO
39
BUS-SCK
40
BUS-I/O
41
LCD-DA
42
LCD-SCK
43
LCD-CE
44
BUZZER
www
45
E2PROM-DI
46
E2PROM-DO
47
E2PROM-CLK
48
OPEN
49~52
-
1-28
http://www.xiaoyu163.com
75
~
51
I/O
Function
O
Reset output for CD sub-micon
I
Muting request of CD sub-micon
-
No use
O
Anntena remote control
-
Micon power supply
-
-
-
GND
-
-
I
Sysyem reset
I
CD request from CD sub-micon
I
J-BUS int
I
Power save2 H:STOP mode
-
-
I
Remocon input
-
A/D converter power supply
-
A/D reference voltage
I
Volume encoder pulse input 1
I
Volume encoder pulse input 2
I
Key input 0
I
Key input 1
I
Key input 2
I
Level meter input
-
-
I
S.METER input
-
GND
-
-
-
Reference voltage
I
J-BUS data input
O
J-BUS data output
I/O
J-BUS clock input/output
O
J-BUS I/O selection Output:H Input:L
O
Data output for LCD driver
O
CLK output for LCD driver
O
CE for LCD driver
O
Buzzer output
I
I2C data input
x
ao
y
O
I2C data output
O
I2C clock output
.
i
I
Door open switch
-
-
http://www.xiaoyu163.com
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2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
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9 9
2 8
9 9

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