JVC CH-X400 Service Manual page 31

3.Pin function
PORT
Pin
I/O
No.
Name
1 LCDDA O LCD driver data output
2 LCDSCK O LCD driver clock output
3 LCDCE O LCD driver chip enable output
4 AVSS - Connect to ground
5 ADCOUT O Power on Hi output. Low in stop mode.
6 NC O Unused output port
7 AVREF1 - Connect to 5V
8 NC O Unused output port
9 NC O Unused output port
10 CDCHECK I CD check mode input. Reset only.
11 EPROMDI I/O EEPROM data input
12 EOROMDO O EEPROM data output. Hi durring input.
13 EPROMCK I/O EEPROM clock input/output
14 LED O Lifter LED output
15 BUS I/O O JVC bus input/output control(Lo:input)
16 BUS SI I JVC bus data input
17 BUS SO O JVC bus data output
18 BUS SCK I/O JVC bus clock input/output
19 NC O Unused output port
20 NC O Unused output port
21 NC O Unused output port
22 NC O Unused output port
23 NC O Unused output port
24 NC O Unused output port
25 BUSOUT O JVC bus output
26 CD ON O CD power control Hi:on
27 PWR CONT O Power supply control output Hi:on
28 POSMO+ O Position motor control output
29 POSMO- O Position motor control output
30 TRAYMO+ O Tray motor control output
31 TRAYMO- O Tray motor control output
32 BUCK O CD LSI data clock
33 VSS1 - Connect to ground
34 LSI RESET O CD LSI reset
35 CCE O CD LSI chip enable
36 BUS0 I/O CD LSI data 0(open drain)
37 BUS1 I/O CD LSI data 1 (open drain)
38 BUS2 I/O CD LSI data 2 (open drain)
BUS3
39 I/O CD LSI data 3 (open drain)
40 NC O Unused output port
Pin
Function
Active
No.
41
42
43
44
H 45
46
47
48
49
50
51
52
53
H 54
55
56
57
58
59
60
61
62
63
H 64
H 65
H 66
67
68
69
70
71
72
L 73
74
75
76
77
78
79
80
PORT
I/O
Name
NC O Unused output port
NC O Unused output port
NC O Unused output port
MAG IN - Magazine switch Lo:magazine inserted
TRAY IN O Tray retract switch Lo:retraction complete
TRAY OUT O Tray extend switch Lo:extension complete
REST I Resr switch
NC O Unused output port
EMPH O Emphasis select output Hi:on
NC O Unused output port
BUFF CONT O Buffer control output
TEST RUN I Test running input
NC O Unused output port
NC O Unused output port
NC O Unused output port
MUTE O Mute output. When reverse of earlier audio
mute. Mute power OR output
STAGE I LCD,AD key,remote inhibit selector Low:inhidit
NC O Unused output port
EPROM CLF I EEPROM clear input Functional only dunng reset
RESET I Reset input (includes flash write in function)
REMOCON I Remote controller signal input
PWR DET I Memory power detect input
PWR SW I CRTL+B detect input
BUS INT I JVC bus com start interrupt input
EJECT I Eject key input
NC I Unused output port
VSS0 - Connect to ground
VDD1 - Connect to 5V
X2 O Oscillater (4.19430 MHz)
X1 I Oscillater (4.19430 MHz)
IC - Connect to ground
XT2 O Open
XT1 I Connect to VDD
VDD - Connect to 5V
AVREF0 - Connect to ADCONT
L SENSOR I
Linear sensor input(8 bit A/D input)
KEY1 I Key input 1 (8 bit A/D input)
KEY2 I Key input 2 (8 bit A/D input)
KEY3 I Key input 3 (8 bit A/D input)
KEY0 I Key input 0 (8 bit A.D input)
CH-X400/CH-X450
UPD780058GC-067
Function
Active
L
L
L
L
H
L
L
H
L
L
L
L
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