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JVC KD-SH77R Service Manual page 22

Cd receiver
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KD-SH77R/KD-SH55R
UPD784217AGC134 (IC701) : CPU
1. Pin layout
76
~
26
~
2. Pin function (1/2)
Pin No.
Symbol
1
SW2
2
SW3
3
SW4
4
REST-SW
5
LM0
6
LM1
7
NC
8
ANT REM
9
VDD
10
X2
11
X1
12
VSS
13
XT2
14
XT1
15
RESET
16
SW1
17
BUS-INT
18
PS2
19
NC
20
RDS-SCK
21
RDS_DA
22
REMOCON
23
AVDD
24
AVREF0
25
SD/ST
26
MRC DATA
27
KEY0
28
KEY1
29
TEMP
30
LEVEL
31
SQ
32
SM
33
AVSS
34
INLOCK
35
NC
36
AVREF
37
BUS-SI
38
BUS-SO
39
BUS-SCK
40
STAGE
41
LCD-DA
42
LCD-SCK
43
LCD-CE
1-22
100
50
I/O
Function
I
CD mecha switch 2 detection signal input
I
CD mecha switch 3 detection signal input
I
CD mecha switch 4 detection signal input
I
Rest switch detection signal input
O
Loading side motor control signal output
O
Eject side motor control signal output
O
Non connect
O
Antenna remote output
-
5V connection
-
Connect to X'tal for main clock
-
Connect to X'tal for main clock
-
Connect to GND
-
Connect to X'tal for sub clock
-
Connect to X'tal for sub clock
I
Reset detection terminal
I
CD mecha switch 1 detection signal input
I
J-BUS signal interrupt input
I
Power save 2
-
Non connect
I
RDS clock signal input
I
RDS data input
I
Remocon signal input
-
5V connect
-
5V connect
I
Station detector, Stereo signal input
I
MRC data input
I
Key input 0
I
Key input 1
I
Temperature data input for contrast correction
I
Level meter input
I
S.Quality level input
I
S.meter level input
-
Connect to GND
O
Lock detection output
-
Non connect
-
5V connect
I
J-BUS data input
O
J-BUS data output
I/O
J-BUS clock input/output
I
H:SH77, L:SH55
O
Data output for LCD driver
O
Clock output for LCD driver
O
Chip enable output for LCD driver

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