DOWNLOAD Sony ICD-MS525 Service Manual ↓ Size: 2.13 MB | Pages: 37 in PDF or view online for FREE

AEP Model

UK Model

Tourist Model

2005D16-1

© 2005.04

Recording media

“Memory Stick“, Monaural recording

Recording time

Frequency range

SP: 120 Hz - 7,000 Hz
LP: 120 Hz - 3,500 Hz

Speaker

approx. 23 mm  (

29

/

32

 in.) dia.

Power output

200 mW

Input/Output

• Earphone jack (minijack) for 8 - 300 ohms ear

receiver/headphones

• Microphone jack (minijack, monaural)

Plug in power
Minimum input level: 0.7 mV 3 kilohms or
lower impedance microphone

• U SB connector

Playback speed control

+100% to -50%  (DPC )

Power requirements

Two size AAA (LR03) alkaline batteries: 3 V DC

Dimensions

34.4 x 106.3 x 18 mm  (1 

3

/

8

 x 4 

1

/

4

 x

23

/

32

in.)

(w/h/d) (not incl. projecting parts and controls)

Mass

75 g (2.7 oz) (incl. batteries  and a “Memory Stick“)

Supplied accessories

“Memory Stick“  x  1
Application Software (CD-ROM) x 

1

Ear receivers x  1
USB connecting cable x  1

Carrying case x  1
LR03 (size AAA) alkaline batteries x 2 (excluding
some areas)

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.

The maximum recording time for all the folders are as follows. You can
record messages for the maximum recording time in a single folder.

SP**

2hr 10min.

4hr 24min.

8hr 52min.

17hr 47min.

LP***

5hr 47min.

11hr 45min.

23hr 38min.

47hr 26min.

    (hr: hours /min.: minutes)

*

When using each “Memory Stick“ for use with ICD-MS525 only and by the

initial setting with three folders.

**

SP: Standard play recording mode (monaural sound)

*** LP: Long play recording mode (monaural sound)

2

• 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.

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

*

Replacement of IC6201, IC7102 used in this set requires a special
tool.

•

The voltage and waveform of CSP (chip size package) cannot be
measured, because its lead layout is different from that of conven-
tional IC.

•

Lead layouts

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.)

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.

surface

Lead layout of

conventional IC

CSP (chip size package)

·········································································· 3

································································ 4

2-1. Front Cabinet Section, Lid (M) Section ······················· 4
2-2. LCD Block Assy ··························································· 5
2-3. Eject Mecha Block Assy, MAIN Board ························ 6
2-4. Speaker Assy (SP3201), Microphone Unit (MIC3201),

AUDIO Board-1 ···························································· 7

2-5. Speaker Assy (SP3201), Microphone Unit (MIC3201),

AUDIO Board-2 ···························································· 8

2-6. SWITCH Board ···························································· 8
2-7. Liquid Crystal Indicator Unit ········································ 9

···································································· 10

······································································ 12

4-1. Block Diagrams ·························································· 13
4-2. Printed Wiring Board – AUDIO Board – ···················· 15
4-3. Schematic Diagram – AOUDIO Board (1/2) – ··········· 16
4-4. Schematic Diagram – AOUDIO Board (2/2) – ··········· 17
4-5. Printed Wiring Board – MAIN Board – ····················· 18
4-6. Schematic Diagram – MAIN Board (1/2) – ··············· 19
4-7. Schematic Diagram – MAIN Board (2/2) – ··············· 20
4-8. Printed Wiring Board – SWITCH Board – ················· 21
4-9. Schematic Diagram – SWITCH Board – ···················· 22

······················································ 30

5-1. Front Cabinet Section ················································· 30
5-2. Rear Cabinet Section ·················································· 31
5-3. Case Section ································································ 32

······································· 33

3

This section is extracted from
instruction manual.

1 ERASE button (33)
2 EAR (earphone) jack (19)
3 OPR (operation) indicator

(14, 19)

4 Built-in microphone (14, 16)
5 Display window (23)
6

zREC (record) /REC
PAUSE button (14)

7 STOP button (15)

8 Jog lever

FOLDER/MENU /
.(review/fast backward)/
> (cue/fast forward)/
x• B (play/stop•enter)

9 INDEX/BOOKMAR K

button (29, 36)

0 A-B REPEAT/PRIORITY

button (30, 42)

qa EJECT lever (11)
qs Memory Stick slot (10)

qd HOLD switch (27, 54)
qf Speaker
qg VOL (volume) +/– buttons

(19)

qh Slit for the supplied

handstrap

qj MIC (PLUG IN POWER)

jack (17)

qk USB connector (60)
ql Battery compartment (6)

You need to set the clock to use the alarm function or record the date and
time.
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 4.

The menu mode will be displayed in the
display window.

>/

.

x

B

The date and time setting window is
displayed.  The year digits will flash.

x

B

>

.

1

Press the jog lever up or down 

(>/

.) to select the digits of the year.

2

Press the jog lever  (x• B).
The month digits will flash.

3

Set the month and day in sequence, then
press the jog lever  (x• B).
The hour digits will flash.

1

Press the jog lever up or down 

(>/

.) to select the digits of the hour.

2

Press the jog lever  (x• B).
The minute digits will flash.

3

Set the minute.

4

Press the jog lever  (x• B).
The menu mode will be displayed again.

If you do not press the jog lever
(x• B) for more than one minute,
the clock setting mode is cancelled
and the window will return to
normal display.

The window will return to normal display.

Press STOP button while the unit is in the stop
mode.
The current time will be displayed for three
seconds.

4

 Follow the disassembly procedure in the numerical order given.

 Disassemble the unit in the order as shown below.

3

front cabinet section

4

lid (M), spring (Lid)

2

two

 screws (M 1.4)

1

screw (M 1.4)

FRONT CABINET SECTION,

LID (M) SECTION

(Page 4)

SET

LCD BLOCK ASSY

(Page 5)

LIQUID CRYSTAL INDICATOR UNIT

(Page 9)

EJECT MECHA BLOCK ASSY,

MAIN BOARD

(Page 6)

SPEAKER ASSY (SP3201),

MICROPHONE UNIT (MIC3201),

AUDIO BOARD-1

(Page 7)

SWITCH BOARD

(Page 8)

SPEAKER ASSY (SP3201),

MICROPHONE UNIT (MIC3201),

AUDIO BOARD-2

(Page 8)