Sony ICD-MS1 Service Manual ▷ View online
ICD-MS1
– 27 –
– 28 –
– 29 –
5-4.
SCHEMATIC DIAGRAM – MAIN/SW Board –
•
See page 36 for Waveforms.
•
See page 37 for IC Block Diagrams.
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PLAY
(
no mark : PLAY
(
) : REC
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: PLAY
L
: REC
• The voltage and waveform of CSP (chip size package) can-
not be measured, because its lead layout is different form
that of conventional IC.
that of conventional IC.
*
Replacement of IC722 used in this set requires a
special tool.
special tool.
ICD-MS1
– 30 –
– 31 –
– 32 –
5-5.
PRINTED WIRING BOARD – AUDIO Board –
• Semiconductor
Location
Ref. No.
Location
D561
I-3
D562
D-11
D761
B-12
IC161
F-11
IC162
E-9
IC163
G-3
IC164
F-8
IC165
G-8
IC168
D-5
IC169
G-5
IC561
J-3
IC562
J-5
IC563
J-4
IC564
I-8
Q161
C-5
Q162
G-7
Q163
E-6
Q165
B-5
Q167
G-8
Q761
C-12
Note on Printed Wiring Board:
•
•
Y
: parts extracted from the conductor side.
•
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.
• AUDIO board is a six-layer printed board.
However, the patterns of intermediate-layer have not
been included in this diagram.
been included in this diagram.
R137
R134
R196
R197
R132
R133
R195
R136
R185
R135
R184
R199
R198
R130
R131
C132
R775
R561
R778
R771
R774
C561
R562
C131
C566
+
C567
+
C562
+
C134
+
C133
C196
C130
C199
C187
C188
C564
+
C565
+
D561
A
K
IC562
4
5
3
1
IC563
4
3
5
1
C563
+
IC169
4
5
3
1
Q163
IC168
4
5
8
1
Q161
IC163
4
5
8
1
B
E
C
Q165
S
D
G
2B
E
1B
2C
1C
IC561
4
5
2
1
3
L561
–1
–2
S763
S161
HIGH
LOW
MIC SENS
S764
OFF
ON
VOR
HOLD
OFF
S761
HOLD
1-675-565-
AUDIO BOARD
(SIDE A)
R169
R180
R164
R168
R166
R167
R179
R181
R177
R178
R183
R773
FB162
FB131
FB133
FB132
R772
R189
R161
R170
R172
R175
R162
R173
R174
R186
C161
FB161
R777
R776
C176 +
C181
+
C170
+
C162
+
C167
C166
C189
C171
C182
C169
C175
C168
C172
C163
C180
C177
C186
C174
C173
C183
C179
D562
A
K
40
1
20
CN761
21
IC564
1
5
3
4
IC162
2
3
1
5
IC165
4
5
3
1
IC161
1
3
5
4
IC164
15
16
30
1
Q761
D761
D761
OPR
E
C
B
E
C
B
Q162
Q167
1C
2C
2B
2B
E
1B
–2
–1
MIC161
MIC
RED
BLK
SP161
(SPEAKER)
BLK
RED
–1 (PLAY : GRN)
–2 (REC : RED)
–2 (REC : RED)
J161
MIC
(PLUG IN POWER)
J162
(EARPHONE)
v
1-675-565-
AUDIO BOARD
(SIDE B)
A
MAIN BOARD
CN725
05
1
A
2
3
4
5
6
7
8
9
10
11
12
13
B
C
D
E
F
G
H
I
J
K
RV161
VOL
PLAY SPEED
NORMAL
FAST
SLOW
D563
A
K
(11, 12)
11, 12
(11, 12)
11, 12
ICD-MS1
– 33 –
– 34 –
– 35 –
5-6.
SCHEMATIC DIAGRAM – AUDIO Board –
•
See page 36 for Waveforms.
•
See page 37 for IC Block Diagrams.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
no mark : PLAY
(
no mark : PLAY
(
) : REC
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: PLAY
L
: REC
– 36 –
– 37 –
– 38 –
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC522
5
(EXT), Q522 (Gate)
2V/DIV, 2µs/DIV
3.7 Vp-p
9.8
µ
s
4.3 Vp-p
1.3
µ
s
4.8 Vp-p
535 ns
3.3 Vp-p
264 ns
3.9 Vp-p
91
µ
s
2
IC721
6
(CLK), IC722
qj
(RTCCE)
2V/DIV, 500ns/DIV
3
IC722
uj
(XBCK)
2V/DIV, 500ns/DIV
4
IC722
<zzb
(XTAL)
1V/DIV, 100ns/DIV
5
IC722
<zb.
(SYNC)
2V/DIV, 50µs/DIV
6
Q522 (Drain)
2V/DIV, 5µs/DIV
2V/DIV, 5µs/DIV
4.2 Vp-p
9.8
µ
s
– AUDIO Board –
7
IC164
w;
(MCK), IC165
4
(OUT)
2V/DIV, 50ns/DIV
4.6 Vp-p
71 ns
8
IC164
wk
(SYC), IC165
3
(IN)
2V/DIV, 50µs/DIV
3.1 Vp-p
91
µ
s
9
IC169
2
(IN)
2V/DIV, 500ns/DIV
4.8 Vp-p
535 ns
0
IC561
4
(LX)
2V/DIV, 2µs/DIV
5.6 Vp-p
6.3
µ
s
qa
Q162 (Emitter), Q167 (Collector)
2V/DIV, 50µs/DIV
2V/DIV, 50µs/DIV
3.4 Vp-p
91
µ
s
qs
Q167 (Base)
2V/DIV, 50µs/DIV
2V/DIV, 50µs/DIV
3.9 Vp-p
91
µ
s
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC522
XC6368A351MR
IC523, 524
XC62HR3102MR
+
–
–
1
2
3
+
–
–
VREF WITH
SOFT START,
CE
RAMP WAVE
GENERATOR,
OSC
PWM/PFM
CONTROLLER
PHASE
COMPENSATION
BUFFER,
DRIVER
5
4
VOUT
VDD
CE
GND
EXT
ERROR
AMP
PWM
COMPARATOR
+
–
–
3
OUTPUT
CONTROL
REFERENCE
VOLTAGE
4
1
2
5
CURRENT
LIMIT
NC
VIN
CE
VSS
VOUT
IC721
RTC4574JE-TP
1
2
3
4
5
6
7
8
9
10
INTERRUPTS
CONTROLLER
BUS
INTERFACE
CIRCUIT
OUTPUT
CONTROLLER
ALARM
REGISTER
SHIFT
REGISTER
DIVIDER
OSC
32.768kHz
CONTROL
REGISTER
TIMER
REGISTER
CLOCK&
CALENDER
12
11
13
14
15
16
17
18
19
20
VDD
FOUT
CEO
/AIRQ
/TIRQ
CLK
DATA
CE1
FCON
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
– AUDIO Board –
IC163
NJM2072M
1
2
3
4
5
6
7
8
INPUT
GAIN CONT
AMP OUT
GND
VCC
OUTPUT1
RECOVERY
TIME CAP
TIME CAP
OUTPUT2
IC164
ML7029MBZ020
1
2
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
22
21
20
19
18
17
16
+
–
3
REFERENCE
VOLTAGE
A/D
CONVERTER
TXON/OFF
D/A
CONVERTER
PCM
EXPANDER
B. P. F./L. P. F.
ATTENUATOR
PCM
COMPRESSOR
20k
Ω
ATTENUATOR
+
L. P. F.
ATTENUATOR
RXON/OFF
MCU
INTERFACE
ADPCM
26
25
24
23
20k
Ω
GSX
NC
AIN–
NC
SG
NC
VA
NC
AG
NC
VFRO
NC
NC
DG
PDN
VD
BCLK
SYNC
PCMSO
PCMSI
IS
IR
PCMRO
PCMRI
NC
MCK
DEN
EXCK
DIN
DOUT
IC165
XC25A08510MR
CLKIN
VSS
VDD
CLKOUT
PHASE
DETECTOR
1/N
COUNTER
L.P.F.
VCO
1/2
BUFFER
2
1
3
4
CE
5
IC561
XC6371C402PR
IC562
XC62HR3302MR
IC563
XC62HR3102MR
IC564
XC62HR3502MR
+
–
–
3
OUTPUT
CONTROL
REFERENCE
VOLTAGE
4
1
2
5
CURRENT
LIMIT
NC
VIN
CE
VSS
VOUT
1
2
3
+
–
–
VDD
REFERENCE
VOLTAGE
SLOW
START
VLX
LIMITER
PHASE
COMPARATOR
CHIP
ENABLE
PWM CONTROL
OSC 50/100/180kHz
BUFFER
4
5
NC
VOUT
CE
VSS
LX
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