JVC KD-SH55R, Service Manual

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KD-SH77R/KD-SH55R
1-22
UPD784217AGC134 (IC701) : CPU
1. Pin layout
2. Pin function (1/2)
1 ~ 25
26 ~ 50
51 ~ 75
76 ~ 100
CD mecha switch 2 detection signal input
CD mecha switch 3 detection signal input
CD mecha switch 4 detection signal input
Rest switch detection signal input
Loading side motor control signal output
Eject side motor control signal output
Non connect
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
Reset detection terminal
CD mecha switch 1 detection signal input
J-BUS signal interrupt input
Power save 2
Non connect
RDS clock signal input
RDS data input
Remocon signal input
5V connect
5V connect
Station detector, Stereo signal input
MRC data input
Key input 0
Key input 1
Temperature data input for contrast correction
Level meter input
S.Quality level input
S.meter level input
Connect to GND
Lock detection output
Non connect
5V connect
J-BUS data input
J-BUS data output
J-BUS clock input/output
H:SH77, L:SH55
Data output for LCD driver
Clock output for LCD driver
Chip enable output for LCD driver 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
I
I
I
I
O
O
O
O
-
-
-
-
-
-
I
I
I
I
-
I
I
I
-
-
I
I
I
I
I
I
I
I
-
O
-
-
I
O
I/O
I
O
O
O
SW2
SW3
SW4
REST-SW
LM0
LM1
NC
ANT REM
VDD
X2
X1
VSS
XT2
XT1
RESET
SW1
BUS-INT
PS2
NC
RDS-SCK
RDS_DA
REMOCON
AVDD
AVREF0
SD/ST
MRC DATA
KEY0
KEY1
TEMP
LEVEL
SQ
SM
AVSS
INLOCK
NC
AVREF
BUS-SI
BUS-SO
BUS-SCK
STAGE
LCD-DA
LCD-SCK
LCD-CE
Pin No. Function Symbol I/O