ICD-47 - Sony Audio Service Manual (repair manual)

Model
ICD-47
Pages
18
Size
1.45 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icd-47.pdf
Date

View Sony ICD-47 Service Manual online

SERVICE MANUAL
Features
• 90 minutes recording time
This unit is useful for recording messages or appointments.
• Organizing message files
You can choose among 3 different files to record and store your
messages.
You can easily move messages from one file to another (see page 18).
Up to 99 messages can be recorded in each file.
• Alarm function
You can start playing back a desired message with an alarm on a desired
date and time  (see page 21). You can use this function to remind you of
the time of the meeting, etc.
• Playback speed control
You can play back messages rapidly (+50%) or slowly (–25%) (see page
19). This is useful when playing back a long recording. The sound pitch
will be automatically adjusted when you change the playback speed.
• Adding a recording to previously recorded message
You can add a recording to the message being played back to count as
one message (see page 20).
IC RECORDER
US Model
Canadian Model
AEP Model
UK Model
E Model
SPECIFICATIONS
ICD-47
Ver 1.0  2001.04
9-873-119-11
Sony Corporation
2001D0500-1
Personal Audio Company
C
 2001.4
Shinagawa Tec Service Manual Production Group
Recording media
Built-in flash memory, Monaural recording
Recording time
90 minutes
Frequency response
280 Hz - 2 800 Hz
Speaker
approx. 3.6 cm (1 
7
16
 in.) dia.
Power output
80 mW
Output
Earphone jack (mini jack) for 8 - 300 
 earphone
Playback speed control
FAST: +50%
SLOW: –25%
Power requirements
One LR03 (size AAA) alkaline battery: 1.5 V DC
Dimensions (w/h/d) (not incl. projecting parts and controls)
58.0 
×
 83.5 
×
 14.2 mm (2
 3
8
 
×
 3
 3
8
 
×
 
9
16
 in.)
Mass (incl. battery)
56 g (1.98 oz)
Design and specifications are subject to change without notice.
2
ICD-47
TABLE  OF  CONTENTS
1.
SERVICING  NOTES
...............................................
2
2.
GENERAL
...................................................................
3
3.
DISASSEMBLY
Disassembly Flow ...........................................................
4
Lid, Battery Case ............................................................
4
“Case (Front) Section”, “Case (Rear) Section” .............
4
MAIN Board ...................................................................
5
Installation “MAIN Board”,
“Microphone, Electric Condenser” (MIC101) ...............
5
4.
TEST  MODE
..............................................................
6
5.
DIAGRAMS
5-1. Block Diagram ................................................................
7
5-2. Printed Wiring Board ......................................................
8
5-3. Schematic Diagram .........................................................
9
5-4. IC Pin Function Description ........................................... 12
6.
EXPLODED  VIEW
................................................... 15
7.
ELECTRICAL  PARTS  LIST
............................... 16
CAUTION ON REPLACING FLASH MEMORY
The BAD-BLOCK check* must be executed, when the flash
memory (IC702) in this set was replaced.
The set will not operation normally, unless this check is finished.
* The BAD-BLOCK check detects an area (bad-block) in the flash
memory where data validity cannot be guaranteed, and saves this
information in the TOC-AREA so that a bad-block is not used.
BAD-BLOCK check Procedure:
1. Apply 1.5 V from regulated power supply to the battery termi-
nals.
2. Once the power is supplied, the check starts and then proceeds
for approx. 45 seconds. (Be sure to keep applying the power
and pin yj or TP13 (green)/Pin yh or TP14 (red) signal “H”
during the check)
* Green/red LED of 
[OPR]
 indicator don't light up, therefore
it cannot be seen visually. Check the signal of pin yh , yj or
TP13, 14.
3. When the check completes, the result is shown as follows.
OK: Pin yh or TP14 signal “L” (Pin yj or TP13 Signal “H”)
NG: Pin yj or TP13 signal “H” (Pin yh or TP14 signal “L”)
4. In case of OK, press the 
[STOP]
 button.
Note:
• In case of NG, check system controller IC (IC701), flash memory IC
(IC702) and the peripheral circuit. (Particularly, check carefully the sol-
dering of the flash memory)
• After finishing the BAD-BLOCK check, assemble the set, load the dry
battery, and confirm if the set operates normally.
SECTION  1
SERVICING  NOTES
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board. (within 3 times)
• Be careful not to apply force on the conductor when soldering
or unsoldering.
3
ICD-47
SECTION  2
GENERAL
This section is extracted from
instruction manual.
32
Index to Parts and Controls
Refer to the pages indicated in parentheses for details.
Main unit
9
q;
qa
qs
qd
qf
qg
1
2
3
4
8
5
6
7
1
VOL (volume) control (14)
2
FILE button (10, 13, 18)
3
MIC (built-in microphone)
(10)
4
NxPLAY/STOP (play/
stop•enter) button (8, 14, 15)
5
./>+ (fast forward/
fast backward•selection of
menu mode) button (13, 15)
6
STOP button (11)
7
HOLD switch (25)
8
PLAY SPEED selector (19)
9
MENU button (8, 21, 34)
0
Display window (33)
qa
OPR (operation) indicator
(10, 14)
qs
ERASE button (16)
qd
REC (record) START/STOP
button (10)
qf
Speaker
qg
EAR (earphone) jack (15)
33
Additional Information
Display window
5
1
2
3
4
6
7
8
9
1
Total number of messages in
a file (13)
Mode indication of the
menu(21, 26 - 28) (On, OFF,
etc.)
2
File indication (10, 13)
3
Current message number (10,
13)
4
Remaining recording time
indication (10)
Recording date indication
(14)
Current time/day indication
(8)
Menu indication (8, 21, 26 -
28, 34) (ALARM, etc.)
Messages (ERASE, SCAN,
etc.)
5
Alarm indicator (23)
6
Battery exhausted indicator
(7)
7
Repeat play indicator (15)
8
REMAIN indication (10)
9
REC DATE indication (14)
8
Clock setting display appears when you insert battery for the first time, or
when you insert battery after the unit has been without battery for a
certain period of time. In this case, proceed from Step 2.
Display the clock setting display.
Set the date.
Step 2: Setting the Clock
1
Press MENU to enter
the menu mode.*
2
Press –
. once to display
“SET DATE”.
3
Press 
NxPLAY/STOP.
The year digits will flash.
2
Press 
NxPLAY/STOP.
The month
digits will flash.
3
Set the month and day in
sequence, then press
NxPLAY/STOP.
The hour
digits will
flash.
1
Press –
. or >+ to select the digits of the year.
1
2
* The “ALARM” display may
appear instead of the “BEEP”
display (see page 34).
9
Getting Started
Set the time.
Exit from the menu mode.
Press MENU.
3
2
Press 
NxPLAY/STOP.
The minute digits will flash.
3
Set the minute.
4
Press 
NxPLAY/STOP at the
time signal.
The display will return to
“SET DATE”.
4
1
Press –
. or >+ to select the digits of the hour.
ICD-47
4
SECTION  3
DISASSEMBLY
“CASE (FRONT)  SECTION”,  “CASE (REAR)  SECTION”
Note:
 Follow the disassembly procedure in the numerical order given.
LID,  BATTERY  CASE
• This set can be disassembled in the order shown below.
DISASSEMBLY  FLOW
Set
Lid, Battery Case
Installation “Main Board”, “Microphone, Electric Condenser” (MIC101)
Case (Front) Section
Case (Rear) Section
Main Board
3
lid, battery case
2
boss
2
boss
1
2
claw
2
three claws
2
three claws
4
case (front) section
3
Remove the two solders 
speaker lead (SP101).
1
screw 
5
case (rear) section
3
#
speaker (SP101)
ICD-47
5
MAIN  BOARD
1
two screws
(M1.7 
×
 4)
2
bracket 
(jack)
3
Remove the MAIN board to
direction of the arrow.
INSTALLATION  “MAIN  BOARD”,  “MICROPHONE,  ELECTRIC  CONDENSER”  (MIC101)
knob (MODE)
knob (HOLD)
S711
S712
microphone, electric condenser 
(MIC101)
Note: On installation MAIN board adjust the S711, S712 
and knob (HOLD, MODE).
two leads
microphone, 
electric condenser
(MIC101)
Install two leads the electric condenser microphone 
(MIC101) in the figure.
6
ICD-47
SECTION  4
TEST  MODE
[Setting Method of Test mode]
Short TP701 (TEST) on the MAIN board with a solder bridge (con-
nect pin yf of IC701 to the ground). Then, turn on the power.
– MAIN BOARD (Side A) –
TP701
Short
: Test mode
Open
: Normal mode
)
(
[Releasing Method of Test Mode]
Turn off the power. Then, open the solder bridge on TP701 (TEST)
on the MAIN board.
[Operation of Setting on Test Mode]
When the test mode is set, the LCD displays “TEST” and 
[OPR]
LED lights in green.
Note:
 The 
[OPR]
 LED turn off, if a key operated.
1. Audio test
• A howling occurs with “5P DSP LOOP” displayed on the LCD,
if the 
[REC START/STOP]
 key is pressed.
• The mute turns on, if 
[        +]
 key is pressed.
• The mute turns off, if  
[--        ]
 key is pressed.
• The microphone sensitivity becomes high, if the 
[HOLD]
 switch
turned off.
• The microphone sensitivity becomes low, if the 
[HOLD]
 switch
turned on.
2. Sleep/Wake up test
• Pressing the 
[       ]
 key causes the set to enter sleep state.
• Pressing another key causes the set to release sleep state.
3. LCD check
• LCD light up all, if the 
[STOP]
 key is pressed.
• Even segment of LCD light up as shown below, if the 
[FILE]
key is pressed.
LCD display
• Odd segment of LCD light up as shown below, if the 
[ERASE]
key is pressed.
LCD display
4. Beep sound check
• A beep (2.4 kHz) is kept sounding, if the 
[MENU]
 key is pressed.
• A beep stop sounding, if another key is pressed.
5. Power supply check
• The battery is on the O.K. level when the 
[OPR]
 LED lights in
green only, or it is off.
• The battery is on the mark lighting level when the 
[OPR]
 LED
lights in green and blinks in red repeatedly.
• The battery is on the inactive level when the 
[OPR]
 LED blinks
in red only.
>
.
Nx
D
Y
S
D
M
M
M
REC DATE
SP
LP
REMAIN
ICD-47
7
7
SECTION  5
DIAGRAMS
5-1.
BLOCK  DIAGRAM
18
13
40
9
11
12
7
42
43
37
14
16
19
18
29
28
36
2
72
73
72
41
8
2
32
16
74
85
65
89
88
9
8
1
6
7
2
3
4
87
82
79
80
70
77
75
76
71
21
67
66
15
68
22
63
69
84
100
3
6
4
5
41
43
5
40
42
4
3
2
13
7
19
20
17
10
11
14
6
1
2
86
4
3
64
TI–
L. P. F
MIC
H. P. F
A/D
CONVERTER
AGC
IC107
MIC AMP
IC103
TRANSMIT
SHIFT
REGISTER
RESET
SWITCH
Q111
MIC SENSE
SWITCH
Q103
SEQUENCE
AND
CONTROL
ADPCM
IC101 (1/2)
MIC101
DT
BCLKR
MCLK
BCLKT
FSR
FST
DIGITAL SIGNAL
PROCESSOR
IC104 (1/2)
DIGITAL SIGNAL
PROCESSOR
IC104 (2/2)
ADPCM
IC101 (2/2)
SYSTEM CONTROLLER
IC701
SDI
SCLK
SLDA
MDISD0
SSN
SCK
IOPD0
IOPD1
DAV
RDY
RSTB
REAL TIME CLOCK
IC703
DSPSI
DSPSSN
DSPSCK
DSPFRM
DSPSTP
DSPDAV
DSPRDY
DSPRST
DSPSO
BEEP
LMUTE
DSPSI
SDO
X701
32.768kHz
OSCIN
SOCOUT
32KOUT
INTR
CE
SCLK
SO
SI
RTCINT
RTCCE
RTCCLK
RTCDI
RTCDO
32 – 61
23 – 26
S0 – S29
COM0 – COM3
LEDPB
LEDREC
ND701
LIQUID
CRYSTAL
DISPLAY
XTALA
LINE MUTING
Q105
D/A
CONVERTER
LED DRIVE
Q506 (1/2)
LED DRIVE
Q506 (2/2)
B+ SWITCH
Q106, 107
RECEIVE
SHIFT
REGISTER
DR
RO–
OPR
L. P. F
D504
VOL
RV101
J101
+
SP101
(SPEAKER)
 SIGNAL PATH
: PLAY
: REC
18 – 21, 24 – 27
91 – 98
FMIO0 – FMIO7
I/O0 – I/O7
FLASH MEMORY
(32BIT)
IC702
R/B
CE
WP
GND
RE
WE
ALE
CLE
XFMBSY
WAKEUP
KEY1
KEY0
XHOLD
SPDSW
XTEST
XFMCE
XFMWP
XFMSE
XFMRE
XFMWE
XFMALE
XFMCLE
MICSEL
X702
5MHz
XT1
X2
X1
DSPMCK
Q0
CLKIN
AMPPOW
PLLCRL
APOWER
CE
DIVIDER
IC106
GRN
(PLAY)
RED
(REC)
1.5V
(POWER AMP (IC102) B+)
3.3V
ADPCM (IC101), DSP (IC104),
DIVEDER (IC106), LED B+
3.3V
MIC AMP (IC103),
AGC (IC107) B+
3.3V
SYSTEM CONTROLLER (IC701), FLASH
MEMORY (IC702), REAL TIME CLOCK (IC703) B+
+3.3V
REGULATOR
IC503
+3.3V
REGULATOR
IC506
DC/DC
CONVERTER
IC502, Q502
DC/DC
CONVERTER
IC501
DC/DC CONVERTER
CONTROL
Q507
VOLTAGE
DETECT
IC504
RESET SIGNAL
GENERATOR
IC505
POWER
SWITCHING
Q508
BATT B+
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC. 1.5V
BATT B+
XSPOWER
XRESET
BATT
PLAY SPEED
>
 HOLD
MENU
FILE
ERASE
TP701
(TEST)
S712
FAST
NORMAL
SLOW
S711
OFF
HOLD
WAKE UP CONTROL
SWITCH
Q701 – 703
S701 – 705
S707 – 709
S707
STOP
(SELECT)
– .
+
S701
REC
START/STOP
PLAY/STOP
Nx
(EXECUTE)
S702
S703
S704
S705
S708
S709
v
POWER AMP
IC102, Q108, 109
ICD-47
8
8
5-2.
PRINTED  WIRING  BOARD
• Semiconductor
Location
Ref. No.
Location
D501
E-2
D502
D-2
D504
C-4
D701
E-3
IC101
B-4
IC102
F-3
IC103
C-9
IC104
B-3
IC106
C-3
IC107
B-2
IC501
F-2
IC502
E-2
IC503
E-2
IC504
D-3
IC505
F-3
IC506
D-2
IC701
D-8
IC702
F-8
IC703
E-4
Q103
B-9
Q105
F-2
Q106
F-2
Q107
F-9
Q108
F-3
Q109
G-2
Q111
B-8
Q502
D-2
Q506
D-4
Q507
D-3
Q508
F-9
Q701
F-2
Q702
F-2
Q703
F-2
Note on Printed Wiring Board:
X
: parts extracted from the component side.
Y
: parts extracted from the conductor side.
f
: internal component.
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
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.
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
G
v
• Main board is four layer printed board.
However, the patterns of layers 2 and 3 have not been included
in this diagrams.
ICD-47
9
9
TP52
TP51
TP49
R131
C132
R132
C131
TP10
R136
C135
R716
W501
W502
TP02
D501
C
51
2
C507
D502
IC504
R508
C511
R505
TP41
C134
TP47
R134
TP9
C130
IC102
RV101
TP54
TP55
C126
C129
Q109
R126
Q106
L903
C128
R137
C133
TP46
R551
R512
R553
TP4
TP3
IC505
C505
R509
R510
R783
C
701
D701
TP12
C127
Q105
C154
IC106
C147
R165
C146
R765
R762
R761
R161
C157
R152
R156
R124
R125
C705
R
701
R
703
R
702
C761
C149
R154
R153
C143
C142
R108
R782
R713
R712
TP35
TP36
TP7
R
784
C
708
C
711
TP6
R779
TP30
R781
TP31
TP33
R709
R710
R
711
C752
R752
C751
TP106
C155
R158
R145
C139
R146
TP105
C144
C113
R115
R143
C114
TP57
C104
C136
TP21
TP22
R771
R707
R708
R776
TP8
R775
R774
R773
TP24
Q702
R706
R751
R102
MIC101
C504
C503
X702
R116
Q103
IC101
Q703
S711
TP
701
S709
S708
X701
W102
W101
SP101
L502
R151
Q111
Q107
IC104
C702
C121
FB503
FB131
FB132
R140
R144
TP13
TP14
IC103
IC107
IC703
IC503
J101
IC501
IC502
Q502
IC701
IC702
FB504
C506
R502
C
153
R517
L501
C550
T
P01
Q507
R506
R507
R133
Q108
TP58
C
102
C101
C120
TP59
S712
R778
S707
C
707
S
705
S704
S703
S702
TP27
TP26
TP25
S701
R772
TP20
R770
R155
Q508
C508
R515
D504
Q506
IC506
R777
ND701
R101
C160
R157
C
510
Q701
C706
1
0.47
1
0.47
22
22
4V
1k
RB551V
10
10
RB551V
XC61AN0802
470k
0.1
470k
22
4V
100
0.1
NJM2076
10k/10k
0.047
0.1
2SA1182
1k
2SB1073
47
6.3V
47k
1
470k
2.2k
680
XC61AN3002MR
0.1
100k
1k
100k
0
.1
1SS3
52
0.1
DTC363EKT146
0.1
XC25BS5001MR
0.1
100k
22p
10k
470k
470k
1M
0.1
47k
47k
10k
33
1
220k
220k
220k
0.1
0.1
47k
47k
0.1
0.01
10k
220k
680k
680k
220k
0.01
0.1
4.7k
0.5%
10k
0.5%
1M
470k
0.5%
1k
47
6.3V
100k
0.1
0.22
3.3k
10k
0.047
22k
0.1
0.047
1M
47k
10
16V
0.033
100p
33k
0.5%
1M
470k
0.5%
22k
0.5%
15k
0.5%
10k
0.5%
4.7k
0.5%
2SB1218A
100k
10k
330
47
6.3V
47
6.3V
5MHz
10k
UN9211J
MC145481
2SB1218A
32.768 Hz
10k
UN9214J
2SK2036
1609J--VA11H-DB
68
6.3V
4700p
4.7k
47k
LMV751M5X
AN6123MS
RS5C348A
XC62G3312MR
XC6372C331PR
XC6372D351PR
CPH3209
-8EU
K9F3208WOA-TCBOT
100
0p
1.5k
10
10V
100
10
XP4601
1M
220k
470k
2SA1182
22
6.3V
100p
0.1
470k
0.5%
0.1
470k
0.5%
10k
10k
3LN01S
47
6.3
V
470k
CL155UR
XP1212
XC62G3312MR
33k
0.5%
2.2k
0.033
3.3k
10
10V
UN9213J
0.1
FMIO0
FM
IO1
FMIO2
FMIO3
FMIO4
FMIO5
FMIO6
FMIO7
P17
P100
P101
P102
P103
P32
COM0
COM1
COM2
COM3
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
P35
P34
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
COM0
COM1
COM2
COM3
P17
P32
P102
P35
FMIO4
FMIO5
FMIO6
FMIO7
FMIO3
FMIO2
FMIO1
FMIO0
P103
P101
P100
P34
STOP
SSN
SCK
DAV
RDY
RDY
SCK
SSN
STOP
DAV
A1
A2
A3
A4
A1
A2
A3
A4
DO
DI
DO
DI
RST
RST
FRM
FRM
GRN
RED
MDISDO
M
D
O
S
D
I
INVA_IN
VDD
BASE_B
BASE_A
VSS
B_OUT
A_OUT
INVB_IN
NON
Q1
VDD
CLKIN
Q0
VSS
CE
V
S
S
S
D
I
S
D
O
S
C
LK
S
LD
A
V
S
S
VDD
SLDB
OSCBYP
INTB
IOPA7
IOPA6
IOPA5
IOPA4
IOPA3
IOPA2
V
S
S
V
D
D
IO
P
A
1
S
C
K
T
D
O
T
D
I
V
S
S
VDD
TCK
TMS
RWN
IOPD0
VSS
XTALB
XTALA
VSSA
VD
D
A
V
P
P
D
A
V
V
D
D
VAG
RO-
TI+
PI
TI-
PO-
PO+
MU/A
TG
VDD
VSS
FSR
DR
BCLKR
FST
DT
BCLKT
MCLK
VAGREF
PDI
VCC
DET
IN
GND DET
VSS
CEL
AEL
VSS
VCC
VCC
CE
RE
WE
WP
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
VDD
SCLK
SO
SI
VSS
CE
INTR
OUT
32K
IN
OSC
OUT
OSC
VSS
CE
VOUT
VIN
NC
VSS
CE
VOUT
VIN
NC
IN
OUT
VSS
NC
CE
VOUT
LX
VSS
LX
NC VOUT CE
OUT
IN
VDD0
AVREF
VSS1
BEEP
COM1
C
O
M
3
COM2
B
IAS
V
L
C
0
V
L
C
1
V
L
C2
V
S
S0
S
0
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S9
S
1
0
S1
1
S
1
2
S
1
3
S
1
4
S
15
S1
6
S
17
S
1
8
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
A
V
S
S
XT2
X
T
1
V
D
D
1
X
1
X
2
IC
DSPSI
DSPIO
DSPSCK
D
SP
FR
M
D
S
P
D
A
V
D
S
PR
D
Y
DSPMCK
NC
NC
S
k
S
MIC
V+
V-
MIC AMP
AGC
SWITCH
SENSE
MIC
ADPCM
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
FLASH MEMORY
Q701,702
WAKE UP
CONTROL
SWITCH
WAKE UP
CONTROL
SWITCH
HOLD             OFF
HOLD
(TE
S
T)
PLAY SPEED
FAST
NORMAL
SLOW
ERASE
FILE
MENU
+
-
(SELECT)
PLAY/STOP
(EXECUTE)
REC
START/STOP
STOP
W701
LIQUID CRYSTAL DISPLAY
KEY0
KEY1
SPDSW
XHOLD
LMUTE
MICSEL
XFMCE
XFMWE
XFMALE
XFMBSY
XFMCLE
DSPSSN
XFMRE
XFMWP
B
A
TT
F
M
IO
7
F
M
IO
6
F
M
IO
5
F
M
IO
4
F
M
IO
3
FM
IO
2
F
M
IO
1
FM
IO
0
A
V
R
EF
R
T
C
IN
T
W
AK
EU
P
X
R
E
S
ET
R
TC
C
LK RTCDO
RTCDI
RTCCE
XSPOWER
AMPPOW
LEDPB
LEDREC
XTEST
APOWER
SYSTEM CONTROLLER
REAL TIME CLOCK
LINE MUTING
RESET
SWITCH
DIVIDER
+3.3V
REGULATOR
+3.3V
REGULATOR
-1
-2
VOL
DRIVER
DRIVER
POWER AMP
B+ SWITCH
B+ SWITCH
(SPEAKER)
-1
-2
DC/DC
CONVERTER
CONTROL
GND
VOLTAGE
DETECT
DC/DC
CONVERTER
DC/DC
CONVERTER
POWER
SWITCHING
-1
-2
(REC)
(PLAY)
OPR
-1
-2
LED DRIVE
GND
RESET SIGNAL
GENERATOR
DC/DC
CONVERTER
DRY BATTERY
SIZE"AAA"
IEC DESIGNATION
R03
1PC.1.5V
)
(
COM0
PLLCRL
GND
IO
P
A
0
S
S
N
IOPD3
IOPD1
R
S
T
B
RDY
R/ B
DIGITAL
SIGNAL
PROCESSOR
DSPSTP
DSPRST
XFMSE
Q508
S704
S705
S703
S702
µ
PD780308GC-A31
10
µ
H
47
µ
H
5-3.
SCHEMATIC  DIAGRAM •
 See page 10 for IC Block Diagrams.
 See page 11 for Waveforms.
Note on Schematic Diagram:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
%
: indicates tolerance.
f
: internal component.
C
: panel designation.
A
: B+ Line.
• Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PLAY
(
) : REC
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: PLAY
L
: REC
ICD-47
10
10
• IC Block Diagrams
IC101
MC145481SDR2

8
13
1
2
20
0.886 V
REF
H. P. F.
SEQUENCE
AND
CONTROL
SHARED
DAC
DAC
ADC
RECEIVE SHIFT
REGISTER
TRANSMIT SHIFT
REGISTER
VAG REF
RO–
4
PO–
3
PI
6
VDD
5
PO+
DR
9
BCLKR
10
PDI
7
FSR
DT
12 BCLKT
11 MCLK
14 FST
15 VSS
16 MU/A
VAG
19 TI+
18 TI–
17 TG
1
VDD
VSS
CUT OFF
FREQUENCY: 200 Hz
L. P. F.
CUT OFF
FREQUENCY: 3.4 kHz
L. P. F.
CUT OFF
FREQUENCY: 3.4 kHz
– 
+
–1
IC102
NJM2076M (TE2)
INVA IN
NON INVB IN
BASE B
BASE A
A OUT
VSS
B OUT
2
VDD
3
1
4
7
6
5
8
POWER
AMP
POWER
AMP
IC106
XC25BS5001MR
3
4
1
2
6
Q1
VDD
CLKIN
CE
Q0
5
VSS
1
2
1
4
11 BIT PLL
(
×
N)
IC107
AN6123MS-TXL
GM
5
DET
3
IN
4
GND
2
DET
1
VCC
DET
IC501
XC6372C331PR
IC502
XC6372D351PR
NC
VOUT
CE
VSS
LX
2
1
3
4
5
VLX
LIMITER
PWM/PFM
CONTROL
OSC 100kHz
BUFFER
PHASE
COMPARATOR
REFERENCE
VOLTAGE
CHIP
ENABLE
SLOW
START
+
VDD
IC503,  506
XC62GR3312MR

3
OUTPUT
CONTROL
REFERENCE
VOLTAGE
4
1
2
5
CURRENT
LIMIT
VSS
VIN
CE
NC
VOUT
IC703
RS5C348A-E2
VDD
VDD
OSCIN
OSCOUT
CE
/INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR

Download Sony ICD-47 Service Manual (Repair Manual)

Here you can view online and download Sony ICD-47 Service Manual in PDF. ICD-47 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony ICD-47 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.