1
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
Tourist Model
ICD-B5
IC RECORDER
Recording media
Built-in flash memory, Monaural recording
Recording time
150 minutes
Frequency response
150 Hz - 3,500 Hz
Speaker
approx. 3.2 cm (1 5/16 in.) dia.
Power output
150 mW
Input/Output
· Earphone jack (minijack) for 8 - 300 ohms
earphone/headphones
· Microphone jack (minijack, monaural)
Plug in power
Minimum input level 0.6 mV
3 kilohms or lower impedance microphone
Power requirements
Two LR03 (size AAA) alkaline batteries: 3 V DC
Dimensions (w/h/d) (not incl. projecting parts and controls)
44.5
× 105.3 × 14.0 mm (1 13/16 × 4 1/4 × 9/16 in.)
Mass (incl. batteries)
68 g (2.4 oz)
Design and specifications are subject to change without notice.
SPECIFICATIONS
Ver 1.0 2002. 04
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-874-006-01
2002D0400-1
© 2002. 04
2
TABLE OF CONTENTS
1. GENERAL
Index to Parts and Controls ..................................................... 3
2. DISASSEMBLY
2-1. Upper Lid Assy ................................................................... 4
2-2. F-SW Board, P-SW Board .................................................. 5
2-3. Main Board ......................................................................... 5
3. DIAGRAMS
3-1. IC Pin Description ............................................................... 6
3-2. Block Diagram .................................................................... 9
3-3. Schematic Diagram Main Section ............................... 10
3-4. Printed Wiring Board Main Section ............................ 11
3-5. Printed Wiring Board F-SW Section ........................... 12
3-6. Printed Wiring Board P-SW Section ........................... 13
3-7. IC Block Diagrams ............................................................ 14
4. EXPLODED VIEWS
4-1. Case Section ...................................................................... 15
4-2. Main Board Section .......................................................... 16
5. ELECTRICAL PARTS LIST ......................................... 17
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.
ICD-B5
· UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
· Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
· Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
· Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
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ICD-B5
SECTION 1
GENERAL
This section is extracted
from instruction manual.
Index to Parts and Controls
Main unit
MIC jack
(PLUG IN POWER)
EAR (earphone) jack
OPR (operation) indicator
z
REC (record) /STOP
X
PAUSE
--.REVIEW/
>
+CUE
Nx
PLAY/STOP·
EXECUTE
HOLD
VOL (volume)
MIC
(built-in microphone)
Display window
FOLDER
INDEX
DISPLAY
MIC SENSE
(microphone sensitivity)
MENU
ERASE
Speaker
STOP
Rear
Battery
compartment
Hook for handstrap
(not supplied)
Display window
Selected message
number/Mode
indication of the
menu (ON, OFF, etc.)
REC (recording)
indicator
Remaining battery
indicator
Remaining memory
indicator
Counter /Remaining time indication /Recording date
indication /Current time indication (15:30, etc.) /Menu
indication (ALARM, BEEP, etc.) /Messages (ERASE, HOLD,
etc.)
Folder indication
Alarm indicator
Repeat play indicator
Microphone sensitivity
indication
REC DATE (recorded date)
indication
REMAIN indicator
4
ICD-B5
Note : This set can be disassemble according to the following sequence.
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. UPPER LID ASSY
2-1.
UPPER LID ASSY
(Page 4)
2-2.
F-SW BOARD,
P-SW BOARD
(Page 5)
SET
2-3.
MAIN BOARD
(Page 5)
1
B 1.7x10
4
claw
2
B 1.7x7
7
screws 1.7x2.5
8
speaker (SP101)
3
claws
5
claws
9
upper lid assy
case assy
6
claw
5
ICD-B5
2-2. F-SW BOARD, P-SW BOARD
2-3. MAIN BOARD
1
CN701
2
case assy
4
F-SW board
5
P-SW board
3
Removal the five solders.
3
screw
4
claw
5
claw
case assy
1
Removal the two solders.
6
MAIN board
2
speaker (SP101)