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X-VH7
QQ
3 7 63 1515 0
1-4 Pin description
Pin
Name
1
S.BUSY
2~5
6~9
KS0,1,3,2
14~16
KR2,0,1
17
18~20
LED2,0,1
21
BACKLIGHT_ON
22~29
30
RESET
31
EXTAL
32
XTAL
33
VSS(GND)
34
TX
35
TEX(GND)
36
AVSS(GND)
37
AVREF
38
SOL
39
R_INH_F
40
PHOTO SW
41
HALF_SW
42
PLAY SW
TE
L 13942296513
43
TYPE II
44,45
LEVEL L/R
46
R_INH_R
47
CPM
48
CLOCK
49
REC/PLAY
50
ERASE
51
DATA
52
STB
53~59
60
BIAS NOR
61~63
64
SLOT OPEN
65
SLOT CLOSE
66
CLOSE SW
67
OPEN SW
68
69
CE
70
DOLBY_RESET
71
72
VDD(+5V)
73
www
74
70/120
75,76
77
AVR_OFF
78
LINE MUTE
.
79
REC MUTE
80
S.DATA
CIRCUIT DESCRIPTION
I/O
Connect
I/O
OPEN
—
I
OPEN
O
PU
I
PD
—
I
OPEN
O
OPEN
O
PD
—
O
OPEN
I
PU
I
OPEN
—
OPEN
—
GND
—
OPEN
I
GND
—
GND
I
+5V
O
PD
I
PU
I
PU
I
PU
I
PU
I
PU
I
PD
I
PU
O
PD
O
OPEN
O
OPEN
O
PD
O
OPEN
O
OPEN
—
O
OPEN
O
PD
—
I
OPEN
O
OPEN
O
OPEN
O
PU
O
PU
—
O
OPEN
O
PU
O
OPEN
—
O
OPEN
—
+5V
—
—
+5V
O
PD
—
O
OPEN
x
ao
y
O
PD
i
O
PD
O
PD
I/O
OPEN
8
Serial communication BUSY signal
No used
KEY SCAN 0,1,3,2
KEY RETURN 2,0,1
No used
LED drive output2,0,1
BACK LIGHT LED drive output
No used
u-com RESET signal detect
MAIN CLOCK(10MHz)
GND
No used
GND
A/D converter GND
A/D converter reference voltage
MECHA solenoid control
FWD REC permission detect signal input L: REC
REAL drive pulse input
Cassette half detect signal input
MECHA HEAD position detect
Q Q
3
6 7
1 3
TYPE Ö†detect signal input
Lch/Rch level input
RVS. REC permission detect signal input L: REC
Capstan motor control
System IC CLOCK output
REC/PLAY changeover
ERASE HEAD control output
System IC DATA output
System IC STROBE signal output
No used
BIAS CONTROL
No used
SLOT OPEN motor control
SLOT CLOSE motor control
SLOT CLOSE detect SW input
SLOT OPEN detect SW input
No used
AC OFF detect signal input
DOLBY IC RESET control
No used
power supply
No used(Connect to VDD(+5V))
PLAY equalizer control output
No used
u163
Circuit AVR ON/OFF control
LINE MUTE control output
.
REC MUTE control output
Serial communication DATA signal
2 9
9 4
2 8
Description
H: BUSY
L: READY
L: ON
H: ON
L: RESET
H: ON
L: CASSETTE EXIST
L: ON
1 5
0 5
8
2 9
9 4
L: TYPE II
H: ON
H: REC
L: PLAY
H: ON
H: NORMAL TAPE
H: ON
H: ON
L: ON
L: ON
L: AC OFF
L: RESET
m
H: 70µs
L: 120µs
co
H: AVR ON
L: MUTE ON
L: MUTE ON
9 9
2 8
9 9
4
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