ICD-B120 (serv.man2) - Sony Audio Service Manual (repair manual)

icd-b120 (serv.man2) service manual
Model
ICD-B120 (serv.man2)
Pages
21
Size
832.14 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icd-b120-sm2.pdf
Date

Read Sony ICD-B120 (serv.man2) Service Manual online

SERVICE MANUAL
Sony Corporation
Connect Business Division
Published by Sony Techno Create Corporation
E Model
IC RECORDER
9-879-847-02
2006F04-1
© 2006. 06
Ver. 1.1  2006. 06
SPECIFICATIONS
ICD-B120
Recording media
Built-in flash memory 16 MB,
Monaural recording
Recording time
HQ:
1 hours 45 minutes
SP:
4 hours 40 minutes
LP:
7 hours 45 minutes
Frequency range
HQ:
260 Hz – 6,800 Hz
SP/LP: 220 Hz – 3,400 Hz
Speaker
approx. 2.8 cm (1 
1/8
 in.) dia.
Power output
250 mW
Input/Output
• Earphone jack (minijack) for
8 – 300 ohms ear receiver/headphone
• Microphone jack (minijack, monaural)
plug in power
Minimum input level 0.6 mV
Power requirements
Two LR03 (size AAA) alkaline batteries:
3 V DC
Dimensions (w/h/d) (not incl. projecting parts and controls)
34.6 
×
 109.5 
×
 18.0 mm (1
 3/8
 
×
 4
 3/8
 
×
 
23/32
 in.)
Mass (incl. batteries) 65g (2.3 oz)
Supplied accessories
Operating instructions (1)
LR03 (size AAA) alkaline batteries (2)
(For the U.S.A. only)
Your dealer may not handle some of the above listed
optional accessories. Please ask the dealer for detailed
information.
Design and specifications are subject to change without
notice.
2
ICD-B120
TABLE OF CONTENTS
1.
GENERAL
...................................................................... 3
2.
DISASSEMBLY
2-1.
Case (Front) Assy ............................................................... 4
2-2.
MAIN Board ....................................................................... 5
3.
TEST MODE
.................................................................. 6
4.
DIAGRAMS
4-1.
Block Diagram  – MAIN Section – .................................... 9
4-2.
Printed Wiring Board  – MAIN Board – .......................... 10
4-3.
Schematic Diagram  – MAIN Board (1/2) – .................... 12
4-4.
Schematic Diagram  – MAIN Board (2/2) – .................... 13
5.
EXPLODED VIEWS
5-1.
Case (Front) Section ......................................................... 17
5-2.
Case (Rear) Section .......................................................... 18
6.
ELECTRICAL PARTS LIST
................................... 19
Flexible Circuit Board Repairing
Keep  the temperature of the soldering iron around 270 
°
C
during 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.
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.
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 viscou-s (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. Operating instructiondd
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  
0
  OR  DOTTED  LINE
WITH  MARK  
0
  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
3
ICD-B120
SECTION 1
GENERAL
This section is extracted
from instruction manual.
Main unit
MIC (built-in microphone)
Rear
Battery
compartment
Display window
Folder indication
Remaining battery
indicator
* There is a tactile dot beside the control to show the
direction to turn up the volume.
**The button has a tactile dot.
(microphone) jack
Display window
MENU/DISPLAY
DIVIDE
x
STOP
zX
REC (record) /PAUSE
— .(review/fast backward)/
>
+ (cue/fast forward) (SELECT)
Speaker
OPR (operation) indicator
ERASE
VOL (volume) control*
HOLD
Nx
PLAY/STOP (ENTER)**
Hook for handstrap
(not supplied)
Microphone sensitivity
Alarm indicator
Selected message number
REC DATE (recorded date)
indication
REMAIN indicator
Remaining memory
indicator
Recording mode
indication
REC (recording)
indicator
Repeat play indicator
Number of messages in
a folder/Menu
indication/Counter /
Remaining time
indication /Recording
date indication /Current
time indication /
Messages
i
 (earphone) jack
Index to Parts and Controls
4
ICD-B120
Note : Follow the disassembly procedure in the numerical order given.
2-1. CASE (FRONT) ASSY
SECTION 2
DISASSEMBLY
Note : Disassemble the unit in the order as shown below.
2-1.
CASE (FRONT) ASSY 
(Page 4)
2-2.
MAIN BOARD
(Page 5)
SET
q;
2
 screw
qa
 two screws
qs
 two brackets (speaker)
qd
 speaker
qf
 case (front) assy
7
 claw
6
 claw
9
 claw
8
 claw
3
 two claws
1
 battery case lid
4
 claw
5
 claw
Page of 21
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Download Sony ICD-B120 (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sony ICD-B120 (serv.man2) Service Manual in PDF. ICD-B120 (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony ICD-B120 (serv.man2) 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.