Read Sony ICD-V21 Service Manual online
ICD-V21
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3-4.
IC PIN FUNCTION
•
IC701 µPD78063-104
Pin No.
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
I/O
A/D
I/O
I/O
I/O
I/O
O
O
AVDD
AVREF
O
I
VSS
O
O
O
O
O
O
O
I
O
I
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
Description
Battery A/D terminal
ADPCM data signal
ADPCM write signal, Low active
ADPCM read signal, Low active
Analog power source of A/D converter
A/D converter reference voltage input
ADPCM chip enable terminal, Low active
ADPCM standby terminal, Low active
GND
LED control terminal, recording & playback, ON = Hi, otherwise, OFF = Low
AGC power supply control during recording, ON = Low, otherwise, OFF = Hi
Flash memory command enable terminal, Hi active
Flash memory address latch enable terminal, Hi active
Flash memory, Low active
Flash memory ready/busy
Buzzer terminal (BEEP terminal)
Test mode terminal
Common signal (3 time-division)
Common signal (terminal open)
Bias terminal (1/2 bias)
LCD power source for drive
Segment signal
Pin Name
BATT A/D
ADPCM D0
ADPCM D1
ADPCM D2
ADPCM D3
ADPCM WR
ADPCM RD
AVDD
AVREF
ADPCM CE
ADPCM STBY
VSS
LITE CTL
POWER CTL0
FLASH-CLE
FLASH-ALE
FLASH-WE
FLASH-WP
FLASH-RE
FLASH-R/B
BUZZER
TEST
COM0
COM1
COM2
COM3
BIAS
VLC0
VLC1
VLC2
VLC3
S0
S1
S2
S3
S4
S5
S6
S7
S8
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
I/O
LCD
LCD
LCD
LCD
LCD
O
O
I
I
I
I
O
O
O
O
I
I
I
O
I
I
VPP
X2
X1
Description
Segment signal
Open
Avref control
Connected to GND
MUTE terminal 2, Hi = On, Low = OFF
Connected to GND
Always ON = Hi, regulator with SW
Power amplifier control ON = Low otherwise, OFF = Hi
MUTE terminal Hi = ON, Low = OFF
Flash memory chip enable terminal, Low active, Hi = power down
Connected to GND
ADPCM reset terminal Low active Hi = power down (standby)
Connected to GND
During normal mode connected to GND
Crystal terminal (main clock)
Pin Name
S9
S10
S11
S12
S13
AVREF
MUTE2
POWER CTL2
POWER CTL1
MUTE
FLASH-CE
ADPCM RST
VPP
X2
X1
Pin No.
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
VDD
XT1
XT2
RESET
I
INT
INT
INT
INT
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
AVSS
A/D
Description
Power supply voltage
Sub clock
Reset terminal, Low active
Connected to GND
Wake up terminal, Low active
HOLD terminal, Low active
ERASE terminal, Low active
ADPCM MON (monitor) Hi = during recording/playback
Connected to GND
Flash Memory input/output port
AD converter GND
Key A/D
Pin Name
VDD
XT1
XT2
CPU RST
WAKE UP
HOLD
ERASE
ADPCM MON
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
AVSS
KEY A/D
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