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)

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