Sony ICD-MS1 Service Manual ▷ View online
– 17 –
6. LCD test
• While pressing the
[DISPLAY]
key, move down the jog lever
causes “CONTRAST v” to be displayed on the LCD and the
contrast of LCD increases. Also, while pressing the
contrast of LCD increases. Also, while pressing the
[DISPLAY]
key, move up the jog lever causes “CONTRAST V” to be dis-
played on the LCD and the contrast of LCD decreases.
played on the LCD and the contrast of LCD decreases.
• LCD lights on all while the
[FOLDER]
key is pressed together
with the
[DISPLAY]
key, and “LCD TEST” is displayed on the
LCD if releasing keys. Also, LCD lights off all while the
[INDEX]
key is pressed together with the
[DISPLAY]
key, and
“LCD TEST” is displayed on the LCD if releasing keys.
7. Menu reset
Pressing simultaneously the
[STOP]
and
[ERASE]
keys causes
the set to return to initial conditions except the destination and
contrast setting.
contrast setting.
– 19 –
– 20 –
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – MAIN Section –
3
AIN1
A/D
CONVERTER
TXON/
OFF
B. P. F./
L. P. F.
ATTENUATOR
PCM
COMPRESSOR
27
PCMSO
26
ADPCM
PCMSI
25
IS
15
PDN
19
DEN
18
EXCK
17
DIN
1
GSX
ADPCM
IC164 (1/2)
11
YFRO
D/A
CONVERTER
L. P. F.
RXON/
OFF
ATTENUATOR
PCM
EXPANDER
22
PCMRI
23
ADPCM
PCMRO
24
IR
20
MCK
28
SYC
29
BCLK
ADPCM
IC164 (2/2)
AGC
IC162
MIC AMP
IC161
147
XVORIN
30
RDWR
10
5
15
14
11
28
26
15
14
XRD
SRCS
XLB
XUB
44 – 50, 52, 54 – 59, 62 – 64
1 –8, 18 – 25, 48
89 – 92, 94, 96 – 102, 105 – 108
29 – 36, 38 – 45
XUB
XCE1
XOE
R/W
XLB
S-RAM
IC727
VOR
DETECTOR
IC163
I/01 – I/016
A0 – A16
D0 – D15
A1 – A17
12
MSDIO
13
MSCLK
11
MSBS
9
MSINS
24
LCDD0
25
LCDDI
78
LCDSCK
2
76
113
EXTAL
115
XTAL
175
TEST2
XLCDCS
XLCDRST
X721
3.7706MHz
DIO
SCLK
BS
INS
SDA
SCL
CS
RST
MEMORY STICK
LCD720
LIQUID CRYSTAL DISPLAY MODULE
BP701
(TEST)
(TEST)
SHORT : TEST MODE
OPEN : NORMAL MODE
OPEN : NORMAL MODE
7
DATA
6
CLK
4
/AIRQ
5
/TIRQ
3
CE0
8
CE1
REAL
TIME
TIME
CLOCK
IC721
3
DI
4
DO
2
SK
1
CS
7
RDY
6
EEPROM
IC723
21
72
71
DSPRX
XDPDN
XDDEN
69 TXD2
68 RXD2
70 SCK2
149 RTCINT1
17 RTCCE
1
XEPCS
153 XEPBUSY
87 EPRST
D720
(LCD BACK LIGHT)
160
LED DRIVE
Q724
LIGHT
146
LED DRIVE
Q761 (1/2)
Q761 (1/2)
GRNLED
145
LED DRIVE
Q761 (2/2)
Q761 (2/2)
REDLED
– 1
– 2
20
DSPTX
77
XBCK
159
SYNC
84
LMUTE
IC169
DIVIDER
IC105
LINE
MUTING
Q161
+
BEEP TONE
BUFFER
Q162
B+ SWITCH
Q167
POWER AMP
IC168
88
74
40
BTL CONTROL
SWITCH
Q163 (1/2)
AMP ON
SWITCH
SWITCH
Q163 (2/2)
PULLUP B+
SP161
(SPEAKER)
EARPHONE
MUTING
Q165
85
144
BEEPCTL
BTLSE
AMPOW
HPMUTE
HPJACK
A
(Page 21)
SYSTEM CONTROLLER
IC722 (1/2)
MIC
MIC161
MIC
(PLUG IN POWER)
J161
VOL
RV161
v
J162
(EARPHONE)
• SIGNAL PATH
: PLAY
: REC
MIC SENS
S161
HIGH
LOW
05
D761
OPR
– 1 (PALY : GRN)
– 2 (REC : RED)
– 2 (REC : RED)
RTCINT
RESET
ICD-MS1
– 19 –
– 20 –
– 21 –
– 22 –
5-2.
BLOCK DIAGRAM – KEY CONTROL/POWER SUPPLY Section –
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – MAIN Section –
3
AIN1
A/D
CONVERTER
TXON/
OFF
B. P. F./
L. P. F.
ATTENUATOR
PCM
COMPRESSOR
27
PCMSO
26
ADPCM
PCMSI
25
IS
15
PDN
19
DEN
18
EXCK
17
DIN
1
GSX
ADPCM
IC164 (1/2)
11
YFRO
D/A
CONVERTER
L. P. F.
RXON/
OFF
ATTENUATOR
PCM
EXPANDER
22
PCMRI
23
ADPCM
PCMRO
24
IR
20
MCK
28
SYC
29
BCLK
ADPCM
IC164 (2/2)
AGC
IC162
MIC AMP
IC161
147
XVORIN
30
RDWR
10
5
15
14
11
28
26
15
14
XRD
SRCS
XLB
XUB
44 – 50, 52, 54 – 59, 62 – 64
1 –8, 18 – 25, 48
89 – 92, 94, 96 – 102, 105 – 108
29 – 36, 38 – 45
XUB
XCE1
XOE
R/W
XLB
S-RAM
IC727
VOR
DETECTOR
IC163
I/01 – I/016
A0 – A16
D0 – D15
A1 – A17
12
MSDIO
13
MSCLK
11
MSBS
9
MSINS
24
LCDD0
25
LCDDI
78
LCDSCK
2
76
113
EXTAL
115
XTAL
175
TEST2
XLCDCS
XLCDRST
X721
3.7706MHz
DIO
SCLK
BS
INS
SDA
SCL
CS
RST
MEMORY STICK
LCD720
LIQUID CRYSTAL DISPLAY MODULE
BP701
(TEST)
SHORT : TEST MODE
OPEN : NORMAL MODE
OPEN : NORMAL MODE
7
DATA
6
CLK
4
/AIRQ
5
/TIRQ
3
CE0
8
CE1
REAL
TIME
CLOCK
IC721
3
DI
4
DO
2
SK
1
CS
7
RDY
6
EEPROM
IC723
21
72
71
DSPRX
XDPDN
XDDEN
69 TXD2
68 RXD2
70 SCK2
149 RTCINT1
17 RTCCE
1
XEPCS
153 XEPBUSY
87 EPRST
D720
(LCD BACK LIGHT)
160
LED DRIVE
Q724
LIGHT
146
LED DRIVE
Q761 (1/2)
GRNLED
145
LED DRIVE
Q761 (2/2)
REDLED
– 1
– 2
20
DSPTX
77
XBCK
159
SYNC
84
LMUTE
IC169
DIVIDER
IC105
LINE
MUTING
Q161
+
BEEP TONE
BUFFER
Q162
B+ SWITCH
Q167
POWER AMP
IC168
88
74
40
BTL CONTROL
SWITCH
Q163 (1/2)
AMP ON
SWITCH
SWITCH
Q163 (2/2)
PULLUP B+
SP161
(SPEAKER)
EARPHONE
MUTING
Q165
85
144
BEEPCTL
BTLSE
AMPOW
HPMUTE
HPJACK
A
(Page 21)
SYSTEM CONTROLLER
IC722 (1/2)
MIC
MIC161
MIC
(PLUG IN POWER)
J161
VOL
RV161
v
J162
(EARPHONE)
• SIGNAL PATH
: PLAY
: REC
MIC SENS
S161
HIGH
LOW
05
D761
OPR
– 1 (PALY : GRN)
– 2 (REC : RED)
– 2 (REC : RED)
RTCINT
RESET
A
(Page 20)
SWITCHING
Q723, 725
3.3V B+
SWITCHING
Q721
3.3V B+
120
31
32
WAKEUP
WAKEMSK
WAKEMSK2
151 MSEJ
166 XHOLD
171 VORSW
172 SPEED
35
–
37
167
–
170
KEY
MATRIX
S1 – 6,
S721 – 723, S725
KEYIN0
–
KEYIN3
KEYCTL0
–
KEYCTL2
S7
MEMORY STICK
IN DETECT
RTCINT
SYSTEM CONTROLLER
IC722 (2/2)
154
PULLUP
121
PULLUP B+
XRST
MSPOW
RESET SIGNAL
GENERATOR
IC726
+3.3V
REGULATOR
IC524
+3.3V
REGULATOR
IC523
+3V
REGULATOR
IC728
LCD VC
3.3V
SYSTEM CONTROLLER (IC722),
S-RAM (IC727), REAL TIME CLOCK (IC721),
EEPROM (IC723), LCD, LED B+
3.3V B+
42
3.3V
(MEMORY STICK B+)
+3.5V
REGULATOR
IC564
3.5V
(DIVIDER (IC165) B+)
+3.3V
REGULATOR
IC562
3.3V
(ADPCM (IC164) B+)
+3.3V
REGULATOR
IC563
SPOWER 41
MICPOW 38
BATT 173
1
EEROR
AMP
PWM
COMPARATOR
OUTPUT
CIRCUIT
CIRCUIT
VREF &
CHIP ENABLE
3
CE
5
EXT
OSC
POWER
CONTROL
IC522
SWITCHING
REGULATOR
Q522
D521
BATT B+
POWER AMP
(IC168) B+
3.3V
MIC AMP (IC161), AGC (IC162),
VOR DETECTOR (IC163) B+
BATT B+
150
XDCIN
VOLTAGE DETECT
IC521
VOLTAGE DETECT
IC1, Q1
DC/DC CONVERTER
CONTROL
Q521
DC/DC CONVERTER
IC561
LINE FILTER
T1
DRY BATTERY
SIZE “AAA”
(IEC DESIGNATION R03)
2PCS. 3V
–
+
DC IN 3V
J1
L521
S761
.
HOLD
OFF
HOLD
S764
VOR
ON
OFF
S763
PLAY SPEED
FAST
NORMAL
SLOW
05
VOUT
Ref No.
S1
S2
S3
S4
S5
S6
S721
S722
S723
S725
PANEL DESIGNATION
STOP
DISPLAY
MENU
INDEX
ERASE
FOLDER
S
z
REC/STOP
z
A-B REPEAT/ PRIORITY
(JOG)
ICD-MS1
– 23 –
– 24 –
– 25 –
– 26 –
5-3.
PRINTED WIRING BOARDS – MAIN/SW Board –
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
• Main board is six-layer printed board.
However, the patterns of intermediate-layer have not been in-
cluded in this diagrams.
cluded in this diagrams.
• Lead Layouts
surface
Lead layout of conventional IC
CSP (chip size package)
• Semiconductor
Location
Ref. No.
Location
D1
J-24
D2
H-25
D3
B-23
D521
H-6
D721
C-12
D722
D-10
D723
D-9
IC1
I-15
IC521
I-11
IC522
H-9
IC523
K-11
IC524
K-10
IC721
D-12
IC722
C-5
IC723
K-13
IC726
D-3
IC727
F-10
IC728
C-11
Q1
I-15
Q521
J-11
Q522
G-7
Q721
D-8
Q723
D-10
Q724
B-12
Q725
C-8
R750
FB702
FB701
R737
R740
R741
R742
R706
R707
R746
R708
R744
R745
R739
R735
JC722
R764
R726
R730
R765
R702
R769
R767
R703
C758
R768
R704
JC721
R747
R734
R705
R727
R766
C760
C759
C702
C701
C761
C744
C762
C525
+
C524
+
C721
+
C704
+
C752
C750
C731
C755
C746
C747
C749
C753
A
K
G
S
D
CN725
1
40
20
21
IC726
1
2
3
D521
Q522
CN723
1
10
MEMORY
STICK
L521
S721
X721
1-675-564-
MAIN BOARD
(SIDE A)
89 87 84 81 78 75 71 67 63 59 56 53 50 47 45
91 88 86 82 79 76 72 68 64 60 55 51 48 44 43
94 92 90 83 77 74 70 66 62 58 54 49 46 42 40
97 95 93 85 80 73 69 65 61 57 52 41 39 38 37
100 99 98 96 36 33 35 34
103 104 102 101 29 30 32 31
107 108 106 105 25 26 28 27
111 112 110 109 21 22 24 23
115 116 114 113 17 18 20 19
119 120 118 117 13 14 16 15
122 123 121 124 8 10 11 12
125 126 127 129 140 145 149 153 157 161 168 173 5 7 9
128 130 134 137 142 146 150 154 158 162 165 171 2 4 6
131 132 136 139 143 148 152 156 160 164 167 170 174 176 3
133 135 138 141 144 147 151 155 159 163 166 169 172 175 1
* IC722
A
AUDIO BOARD
CN761
05
A
R751
R725
R724
R728
R760
R752
R721
C738
D722
R733
R732
R729
C741
R758
R757
R713
R753
JC723
R712
R723
R701
R759
R763
R738
C756
C724
C726
C763
C733
C734
C735
C736
C737
C740
C742
C727
C728
C739
C722
R521
C522
R523
R526
R528
R736
R709
R527
R525
R522
R756
R711
R710
C521
C730
C703
C757
C527
+
C523
+
C526
+
CN724
1
22
S
D
G
Q725
S
D
G
Q721
B
C
E
Q723
RB721
RB722
D721
A
K
Q724
IC721
1
10
20
11
IC727
1
24
48
25
IC522
1
5
3
4
IC521
2
3
1
JC724
1
8
4
5
Q521
IC523
1
5
3
4
IC524
1
5
3
4
IC723
CN722
11
10
20
1
BP701
(TEST)
1C 2B 2E
1E 1B 2C
D723
2
3
1
IC728
LCD720
LIQUID CRYSTAL
DISPLAY MODULE
C
B
E
D720
(LCD BACK LIGHT)
S725
(JOG)
MAIN BOARD
(SIDE B)
1-675-564-
A
A
A
K
K
K
–1
–3
–2
A
A
A
K
K
K
–1
–3
–2
R1
R6
R2
C9
SD
G
Q1
IC1
2
1
20
10
CN1
11
1
3
S7
MEMORY STICK
IN DETECT
(11)
11
1-675-563-
SW BOARD
(SIDE A)
C3
C1
C2
C4
R8
D1
D2
A
K
A
K
D3
A
K
C5
+
C7
+
1-675-563-
(11)
11
SW BOARD
(SIDE B)
S3
S5
S2
S1
S6
S4
INDEX
T1
DC IN 3V
–
+
J1
DRY BATTERY
SIZE “AAA”
(IEC DESIGNATION R03)
2PCS.3V
BP1
1
A
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
B
C
D
E
F
G
H
I
J
K
FOLDER
DISPLAY
STOP
ERASE
MENU
S723
A-B REPEAT/
PRIORITY
PRIORITY
S722
REC/STOP
(11, 12)
11, 12
(11, 12)
11, 12
*
Replacement of IC722 used in this set requires a
special tool.
special tool.
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