Read Sony ICD-70 Service Manual online
ICD-70
US Model
Canadian Model
AEP Model
E Model
Tourist Model
SERVICE MANUAL
IC RECORDER
MICROFILM
SPECIFICATIONS
Recording media
Built-in flash memory, Monaural recording
Recording time
SP : 16 minutes
LP : 24 minutes
LP : 24 minutes
Frequency response
SP : 250 Hz - 3,500 Hz
LP : 250 Hz - 2,400 Hz
LP : 250 Hz - 2,400 Hz
Speaker
approx. 2.8 cm (1
1
/
8
in.) dia.
Power output
70 mw
Output
Earphone jack (mini jack) for 8 - 300 ohms
earphone
earphone
Input
Microphone jack (mini jack, monaural)
Plug in power
Minimum input level 0.3 mV
3 kilohms or lower impedance microphone
Minimum input level 0.3 mV
3 kilohms or lower impedance microphone
Digital I/O connector (15-pin)
Power requirements
Two size AAA (LR03) alkaline batteries : 3V DC
Dimensions (w/h/d) (incl. projecting parts and controls)
57.4
×
85
×
23.2 mm (2
3
/
8
×
3
3
/
8
×
15
/
16
in.)
Weight (not incl. batteries)
Approx. 50g (1.8 oz)
Supplied accessories
Hand strap
×
1 (attached to the unit)
Size AAA (LR03) alkarine battery
×
2
Optional accessories
Active speakers SRS-T1
Connecting cable RK-G64HG
WAV LINK software (available in spring ’98)
Connecting cable RK-G64HG
WAV LINK software (available in spring ’98)
•
For IBM PC/AT* or compatible PC
•
For Windows
®
95/Windows
®
3.1**(English
version)
•
To play back messages on the computer, a
sound board must be installed in the
computer.
computer.
Design and specifications are subject to change without notice.
* IBM PC/AT is a registered trademark of International Business
Machines Corporation of the U.S.A.
** Windows
®
95 and Windows
®
3.1 are registered trademarks licensed
to Microsoft Corporation, registered in the U.S.A. and other
countries.
countries.
— 2 —
TABLE OF CONTENTS
SERVICE NOTE
Notes on chip component replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be damaged
by heat.
by heat.
Flexible Circuit Board Repairing
•
Keep the temperature of soldering iron around 270 ˚C during
repairing.
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering or
unsoldering.
unsoldering.
SERVICING NOTE
······················································ 2
1.
GENERAL
······································································ 3
2.
DISASSEMBLY
2-1.
BATTERY CASE LID, MAIN board ································· 5
3.
DIAGRAMS
3-1.
IC Pin Functions ································································· 6
3-2.
Printed Wiring Board — MAIN Section — ······················· 8
3-3.
Schematic Diagram — MAIN Section — ························ 11
3-4.
IC Block Diagrams ··························································· 15
4.
EXPLODED VIEWS
4-1.
Main Section ····································································· 18
5.
ELECTRICAL PARTS LIST
··································· 19
— 3 —
SECTION 1
GENERAL
1 ∑
VOL knob
2
MIC
3
OPR indicator light
4
JOG DIAL switch (PLAY/STOP) (
=
/
+
FF/REW)
( / select on MENU mode)
5
FILE button
6
PRIORITY button
7 C
HOLD switch
8
MENU button
9
STOP button
!º
DIGITAL I/O connector (for personal computer)
!¡ @
(EARPHONE) jack
!™
LIQUID CRYSTAL DISPLAY PANEL
!£
MIC (PLUG IN POWER) jack
!¢
ERASE button
!∞
REC button
!§
SPEAKER
!¶
HAND STRAP
This section is extracted
from instruction manual.
from instruction manual.
C
c
IC RECORDER
— 4 —
DISPLAY WINDOW
1
File icons
2
Current message number
3
Priority marks
4
Total number of messages in a file
5
REMAIN (Remaining recording time) indication
REC DATA (Recording data) indication
6
Current time/day indication
(15:30 TUE, etc)
Recording time indication
(10:10:10, etc)
Menu indication
(ALARM OFF, etc)
File name
(ACTION, SCHEDULE, etc)
Massages
(15:30 TUE, etc)
Recording time indication
(10:10:10, etc)
Menu indication
(ALARM OFF, etc)
File name
(ACTION, SCHEDULE, etc)
Massages
(RECORD, ERASE?, etc)
7
Battery exhausted indicator
8
HOLD indicator
9
Alarm indicator
!º
Repeat play indicator
!¡
Digital VOR indicator
!™
Recording mode indication
