Sony ICD-B200RS Manuel utilisateur

Ver. 1.0 2005.04

SERVICE MANUAL

US Model

ICD-B200RS

SPECIFICATIONS

Recording media Built-in flash memory 32MB,

Monaural recording

Recording time HQ : 3 hours 40 minutes

SP : 9 hours 50 minutes

LP : 16 hours 10minutes

Frequency range HQ : 250 Hz – 6,800 Hz

SP/LP: 220 Hz – 3,400 Hz

Speaker approx. 2.0 cm (13/16 in.) dia.

Power output 250 mW

Input/Output • Earphone jack (minijack) for 8 – 300 ohms

ear receiver/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)

30.0 ×103.5 ×16.0 mm (1 3/16 ×4 1/8 ×21/32 in.)

Mass (incl. batteries) 58 g (2.1 oz)

Supplied accessories Operating instructions (1)/Ear receiver

(MDR-E0110LP) (1)

Design and specifications are subject to change without

notice.

Sony Corporation

Personal Audio Group

Published by Sony Engineering Corporation

IC RECORDER

9-879-655-01

2005D04-1

ICD-B200RS

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.

zUNLEADED 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.

TABLE OF CONTENTS

1. GENERAL ................................................................... 3

2. DISASSEMBLY

2-1. Case (Front) Assy ............................................................ 4

2-2. SWITCH Board, MAIN Board ....................................... 5

2-3. AUDIO Board.................................................................. 5

3. SERVICE MODE ....................................................... 6

4. DIAGRAMS

4-1. Block Diagram ................................................................ 11

4-2. Printed Wiring Board – AUDIO Section – ..................... 12

4-3. Schematic Diagram – AUDIO Section – ........................ 13

4-4. Printed Wiring Board – MAIN Section – ....................... 14

4-5. Printed Wiring Board – SWITCH Section – .................. 15

4-6. Schematic Diagram – MAIN Section –.......................... 16

5. EXPLODED VIEWS

5-1. MAIN Board Section....................................................... 20

5-2. Case (Rear) Section ......................................................... 21

6. ELECTRICAL PARTS LIST .................................. 22

ICD-B200RS

SECTION 1

GENERAL This section is extracted

from instruction manual.

Index to Parts and Controls

Main unit

MIC (built-in microphone)

Display window

DISPLAY

zX REC (record) /PAUSE

Nx PLAY/STOP (ENTER)

– .

(review/fast backward)

(cue/fast forward)

(SELECT)

Speaker

Rear Hook for handstrap

(not supplied)

MIC SENS

(microphone

sensitivity)

Battery

compartment

Display window

Folder indication

Alarm indicator

Repeat play indicator

Selected message

number

REC DATE (recorded

date) indication

REMAIN indicator

MIC jack (PLUG IN POWER)

EAR (earphone) jack

OPR (operation) indicator

ERASE

FOLDER

VOL (volume) +/–

DIVIDE

HOLD

xSTOP

Remaining memory

indicator

Remaining battery

indicator

Recording mode

indication

REC (recording)

indicator

Number of messages

in a folder/Menu

indication/Counter

/Remaining time

indication /

Recording date

indication /Current

time indication /

Messages

ICD-B200RS SECTION 2

DISASSEMBLY

•This set can be disassembled in the order shown below.

Note: Follow the disassembly procedure in the numerical order given.

2-1. CASE (FRONT) ASSY

(Page 4)

2-2. SWITCH BOARD,

MAIN BOARD

(Page 5)

SET

2-3. AUDIO BOARD

(Page 5)

screw

claw

two claws

case (front) assy

two claws

battery case lid

ICD-B200RS

2-2. SWITCH BOARD, MAIN BOARD

2-3. AUDIO BOARD

CN705

SWITCH board

MAIN board

S701

CN701

claw

S702

screw

cushion (battery case lid)

battery case lid

AUDIO board

speaker (2cm)

ICD-B200RS SECTION 3

SERVICE MODE

3-1. Setting the Service Mode

To enter the service mode, use the following procedure:

With the power on, turn the HOLD switch on while pressing the

xSTOP key and the VOLUME– key.

3-2. Resetting the Service Mode

The service mode is reset by turning the power off (removing the

power cord).

3-3. Initial State of the Service Mode

3-3-2. FlashMemory ID display

The ID of FlashMemory is displayed. This ID represents the

manufacturer code and device code.

The service mode has the initial screen of “Version display”. A

desired test mode under service mode is selected by pressing the

.+ keyor >– key. Then, the testingoperation in theselected

mode is determined by using the Bx key.

3-3-1. Version display

The version display is the initial screen in service mode and shows

the set name and the version No.

3-3-3. BadBlock count display

The count of initially faulty blocks for FlashMemory data is

displayed.

(Initial screen)

Version

display

Key Test

Reset Menu

Dsp Loop

Test Battery

Value

Flash

Memory

ID display

BadBlock

count

display

Lcd

Test

Beep

Test

Set name

Version No

"1.00"

Device code

Manufacturer cod

TOSHIBA

SAMSUNG

Manufacturer code

Device code

(Memory Size)

16MB 32MB

73 75

BadBlock

count

ICD-B200RS

3-3-4. LCD test

The initial screen for LCD test displays the blinking characters

“LCD”. The LCD test mode includes seven different LCD tests.

The LCD test mode is executed by pressing the Bx key while the

“LCD”characters are blinking.

Pressing of the xSTOP key during any LCD test (display) will

return to this initial screen for LCD test. The LCD tests present the

following displays:

1. All LCD segments on

2. All LCD segments off

3. All LCD segments blinking

4. Even segments displayed

5. Odd segments displayed

6. LCD1 segments displayed

7. LCD set characters displayed

1) Segment test

The segment test is intended to check whether Com-Seg Map is

correct or not. When this test mode is selected, the initial screen

displays the blinking characters “SEG”.

The number of segments are 120. The segment test is executed by

pressing the Bx key while the “LCD” characters are blinking.

Pressing of the xSTOP key during any display of the segment

test will return to the initial screen for LCD test. The segment test

includes the following displays:

Initial screen for LCD TEST

All ON

STOP

Character display

Segment

ODD EVEN

All OFF

All blinking

STOP

This cycle is repeated until

the

key is pressed (toggle).

Segment

Initial screen

for LCD TEST

ICD-B200RS

2) MOJI test

The MOJI test is intended to show the character display (characters/

digits). When this test mode is selected, the initial screen displays

the blinking characters “MOJI”. The MOJI test is executed by

pressing the Bx key while the “MOJI”characters are blinking.

Pressing of the xSTOP key during any display of the MOJI test

will return to the initial screen for LCD test.The MOJI test includes

the following displays:

3-3-5. BEEP test

The beep test is intended to sound 2.4 kHz beeps. When this test

mode is selected, the initial screen displays the blinking characters

“BEEP”. The beep test is executed by pressing the Bx key while

the “BEEP” characters are blinking. By pressing the xSTOP key,

the beep sound will stop returning you to the initial screen for beep

test. The beep test includes the following displays:

Initial screen

for LCD TEST

STOP

This cycle is repeated until

the

key is pressed (toggle).

Character display

3-3-6. Battery value

The voltage value of the battery inserted into the set is displayed in

hexadecimalformat.Thevalueisinvalidwhen the adapterisinserted.

STOP

Initial screen

for BEEP TEST

beep

3-3-7. DSP LOOP test

The DSP loop test has the following flow:

DSP

MIC MIC AMP

POWER

AMP

SPEAKER

Note : Incoming voice data from the MIC is outputted to the

speaker as it is.

Voice Voice

VOICE

VoiceVoice

Battery voltage value

(HEX value)

BATTERY display screen

The initial screen for DSP loop test displays the blinking characters

“DSP”. The DSP loop test is executed by pressing the Bx key

while the “DSP” characters are blinking. Pressing of the xSTOP

key during any display of DSP loop test will return you to the initial

screen for DSP loop test.

Thevolumecanbe changedby using theVOLUME+ or VOLUME–

key. Thevolumevaluecan besetto 0 to30 levels,butisnot displayed

on the screen when changed. The DSP loop test includes the

following displays:

STOP

SP MODE LP MODEHQ MODE

Initial screen for

DSP LOOP TEST

Note: The volume value can be set to 0 to 30 levels,

but is not displayed on the screen when changed.

ICD-B200RS

3-3-8. Reset menu

The reset menu is used to initialize menu contents.When this mode

is selected, the initial screen for reset menu displays the characters

“RST MENU”. Pressing of Bx key during “RST MENU”

character display will cause the menu information to be initialized.

The reset menu includes the following items:

Initialization

of MENU contents

Initial screen

for RESET MENU

Note: The display remains unchanged

when the MENU is being reset.

3-3-9. KEY test

The key test is intended to check whether any key pressed is

recognized or not (AD misdetection check). When this test mode is

selected,the initialscreenforkeytestdisplays the blinkingcharacters

“KEY TEST”. By pressing the Bx key while the “KEY TEST”

characters are blinking, the characters “PLAY” will be displayed

entering the key test screen.

Once the key test is started, the test will not be completed until all

of keys are pressed. To exit from the key test mode, turn the power

off (remove the power cord). The key test includes the following

key tests:

DIVIDE FOLDER ERASE

All of keys or switches completed

to be pressed.

FlashMemory being accessed

(Initialization of MENU information) Completed

KEY TEST screen

Initial screen for KEY TEST

STOP

DISPLAY VOLUME–VOLUME+

MENU item

REC MODE

VOR

CONTINUE

ALARM

BEEP

SETDATE

Initial setting

OFF

No setting

KEY name

xSTOP

.–

DISPLAY

VOLUME–

VOLUME+

FOLDER

ERASE

DIVIDE

LCD display

STOP

PLAY

REW

REC

DISP

VOL M

VOL P

FOL

ERASE

DIVIDE

ICD-B200RS SECTION 4

DIAGRAMS

THIS NOTE IS COMMON FOR PRINTED WIRING

BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is

printed in each block.)

Common Note on Schematic Diagrams:

•All capacitors are in µF unless otherwise noted. (p: pF)

50 WV or less are not indicated except for electrolytics

and tantalums.

•All resistors are in Ωand 1/4W or less unless otherwise

specified.

•f: internal component.

•C: panel designation.

•A: B+ Line.

•Power voltage is dc 3V and fed with regulated dc power

supply from battery terminal.

•Voltage and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

no mark : REC

():PB

•Voltagesaretakenwith aVOM(Input impedance10MΩ).

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.

E: PB

a: REC

Common Note on Printed Wiring Boards:

•X: parts extracted from the component side.

•Y: parts extracted from the conductor side.

•f: internal component.

•: Pattern from the side which enables seeing.

Caution:

Pattern face side: Partsonthe patternfacesideseen 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.

•Waverforms

– AUDIO board –

0.8 Vp-p

4.096 MHz

1IC101 ta (XOUT)

0.5 V/DIV, 0.1

sec/DIV

– MAIN board –

IC704 1(32KOUT)

2.2 Vp-p

1.2 Vp-p

3.2 Vp-p

5 MHz

32.768 kHz

IC704 8(OSCOUT)

1.0 V/DIV, 10

sec/DIV

IC703 ul (X2)

0.5 V/DIV, 10

sec/DIV

1.0 V/DIV, 0.2

sec/DIV

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