Read Sony ICD-V21 Service Manual online
ICD-V21
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
SECTION 3
DIAGRAMS
— 3 —
— 4 —
— 5 —
2-1.
MAIN board
SECTION 1
GENERAL
FRONT SIDE
3-1.
IC BLOCK DIAGRAMS
IC101
MSM6588LGS-2K
D3 10
D2 9
RSEL1 30
RSEL2 31
D1 8
D0 7
WR 1
RD 2
CE 3
MCUM 6
RESET 44
MON 42
XT 37
XT 38
MIN
22
MOUT
21
FIN
14
AOUT
13
FOUT
12
ADIN
11
SG
18
20 Stage
Address Counter
Address
Controller
DV
DD
39
DV
DD'
17
AV
DD
16
DGND
24
AGND
23
TEST
43
TEST
33
TEST
32
SAD
27
SAS
26
TAS
25
RWCK
41
WE
40
CS1
28
CS2
29
CS3 (STBY)
34
CS4 (RSEL0)
35
DI/O
36
TEST
4
TEST
5
OSC
LPF
_
+
Date I/O
I/O
CS4
20-bit
Address Register
20-bit
Stop Address Register
20-bit
Comparator
ADPCM
Analyzer/Synthsizer
Register
Contoroller
12 bit
DAC
12 bit
ADC
SG
Circuit
MCU I/F
T
iming
Controller
Status
Register
LIN
20
LOUT
19
AMON
15
_
+
RSEL0
1
REC/PB (OPB) LAMP
2
LCD window
3
Built-in MIC
4
ERASE button
1
2
3
4
5
7
6
!º
!¡
8
9
!™
REAR SIDE
5
SPECIAL MESSAGE button
6
Hand strap
7
REC START/STOP button
8
VOL knob
9
Jog lever
!º
BEEP/SHUFFULE button
!¡
Speaker
!™
HOLD knob
Remove the three claws
3
Front panel assy
4
Main board
1
Lid, battery case
2
Screw
(B 1.7
×
4)
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