JVC KD-LH7R Service Manual page 26

KD-LH7R
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3 7 63 1515 0
UPD784216AGC163 (IC701): SYSTEM CPU
Symbol
Pin No.
1 SW2
2 SW3
3 SW4
4 REST
5 LM0
6 LM1
7 NC
8 NC
9 VDD
10 X2
11 X1
12 VSS
13 XT2
14 XT1
15 RESET
16 SW1
17 BUS-INT
18 PS2
19 CRUISE
20 RDS-SCK
21 RDS DA
22 REMOCON
TE
23 AVDD
L 13942296513
24 AVREF0
25 VOL1
26 VOL2
27 KEY0
28 KEY1
29 KEY2
30 LEVEL
31 SQ
32 SM
33 AVSS
34 NC
35 NC
36 AVREF
37 BUS-SI
38 BUS-SO
39 BUS-SCK
40 BUS-I/O
41 LCD-DA
42 LCD-SCK
43 LCD-CE
www
44 BUZZER
45 E2PROM-DI
46 E2PROM-DO
47 E2PROM-CLK
48 OPEN
49 NC
50 NC
1-26
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I/O
I Signal input of mechanism switch 2 detection
I Signal input of mechanism switch 3 detection
I Signal input of mechanism switch 4 detection
I Rest switch detection signal input
O Loading side motor control signal output
O Eject side motor control signal output
O Non connect
O Non connect
5V connection
GND connection
I Reset detection terminal
I Mechanism switch detection signal input
I J-BUS signal interrupt input
I POWER SAVE2. BACK UP and synchronization
Becomes stop mode because of the input of H.
I Pulse signal input for cruise
I RDS clock input
I RDS data input
I Remote control signal input
5V connection
5V connection
I Rotation volumepulse signal input
Pulse which actually becomes judgment of change
I Rotation volume pulse signal input
I Key input 0
I Key input 1
I Key input 2
I Level meter input
I S.QUALITY level input
I S.METER level input
GND connection
O Non connect
O Non connect
5V connection
I J-BUS data input
O J-BUS data output
I/O J-BUS clock input & output
O J-BUS I/O switch output. At output : H, At input : L
O Data output to LCD driver
O Clock output to LCD driver
O Chipenable to LCD driver
OI Buzzer output
O Communication data input of 12C
x ao
y
O Communication data output of 12C
. i
I Communication data clock output 12C
O Opening detection input
O Non connect
O Non connect
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8
Function
Q Q
3 6 7 1 3
u163
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2 9 9 4 2 8
UPD784216AGC163(1/2)
1 5 0 5 8 2 9 9 4
m
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9 9
2 8 9 9