ICD-BM1, ICD-BM1PRO - Sony Audio Service Manual (repair manual)

1

US Model

Recording media

“Memory Stick”, Monaural recording

Recording time
Maximum recording time and number of messages for a “Memory Stick”
The maximum recording time for all the folders and the maximum number
of messages are as follows. You can record messages for the maximum
recording time in a single folder.

4MB

8MB

16MB

32MB

64MB

128MB

ST*

10min.

20min.

40min.

1hr 25min.

2hr 50min.

5hr 50min.

SP**

30min.

1hr

2hr 10min.

4hr 20min.

8hr 50min.

17hr 45min.

LP***

1hr 20min.

2hr 50min.

5hr 45min.

11hr 45min. 23hr 35min. 47hr 25min.

Number

456

950

963

1,016

1,016

1,016

of Messages

*ST:

High quality recording mode

(hr: hours /min.: minutes)

(stereo sound with an external stereo microphone not supplied)

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

Frequency range

ST: 60 Hz - 13,500 Hz
SP: 60 Hz - 7,000 Hz
LP: 80 Hz - 3,500 Hz

Speaker

approx. 28 mm (

29/32

 in.) dia.

Power output

350 mW

Input/Output

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

headphones

• Microphone jack (minijack, stereo)

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

• USB connector
• DC IN 3V jack

Playback speed control

+100% to -50% (DPC)

Power requirements

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

Dimensions

36.6 

× 112.3 × 21mm (1

 1/2

 

× 4

 1/2

 

× 

27/32

 in.)

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

Mass

98 g (3.5 oz) (incl. batteries and a “Memory Stick”)

Supplied accessories

“Memory Stick” (ICD-BM1: 16MB 

× 1/

ICD-BM1PRO: 16MB 

× 3)

“Digital Voice Editor” (CD-ROM) 

× 1

Ear receiver 

× 1

USB connecting cable 

× 1

Carrying case 

× 1

Clamp filter 

× 1

Design and specifications are subject to change without notice.

2007D04-1
© 2007.04

2

Index to Parts and Controls ..................................................... 3
Getting Started ......................................................................... 3
Basic Operations ...................................................................... 5
Editing Messages ..................................................................... 8
Formatting a “Memory Stick” ................................................. 9

2-1.   Knob (Rear) ....................................................................... 10
2-2.   Chassis Block Assy ........................................................... 11
2-3.   SW Board .......................................................................... 11
2-4.   Plate (MS) Section ............................................................ 12
2-5.   LCD Board ........................................................................ 12
2-6.   Chassis Section ................................................................. 13
2-7.   Memory Stick Connector .................................................. 13
2-8.   Main Board ....................................................................... 14

3-1.   IC Pin Descriptions ........................................................... 15
3-2.   Block Diagram – Main Section – ...................................... 21
3-3.   Block Diagram – LCD/SW Section – ............................... 22
3-4.   Printed Wiring Board – Main Section – ............................ 24
3-5.   Schematic Diagram – Main Section (1/3) – ...................... 25
3-6.   Schematic Diagram – Main Section (2/3) – ...................... 26
3-7.   Schematic Diagram – Main Section (3/3) – ...................... 27
3-8.   Schematic Diagram – LCD/SW Section – ........................ 28
3-9.   Printed Wiring Board – LCD Section – ............................ 29
3-10. Printed Wiring Board – SW Section – .............................. 30
3-11. IC Block Diagrams ............................................................ 31

4-1.   Main Section ..................................................................... 34
4-2.   Case Section ...................................................................... 35
4-3.   Ornament Section .............................................................. 36
4-4.   Chassis (1) Section ............................................................ 37
4-5.   Chassis (2) Section ............................................................ 38

......................................... 39

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.

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.

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.

* Replacement of IC601, IC702 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
conventional IC.

• Lead layouts

Lead layout of

conventional IC

surface

CSP (chip size package)

3

This section is extracted
from instruction manual.

GB

1

MIC (microphone) (PLUG
IN POWER) jack (18)

2 i

 (headphones) jack (16, 19,

21)

3

ERASE button (29, 34)

4

Display window (24)

5

MENU button (49)

6

DISPLAY button (26)

7

FOLDER button (13, 20)

8

ENTER button

9

DIVIDE button 

0

CANCEL button

qz

PRIORITY button (36)

qs

Built-in microphone (14)

qd

NEW FILE button (15)

qf

OPR (operation) indicator
(14, 21)

qg

Jog lever 

.

 (review/fast

backward)/

>

 (cue/fast

forward)

qh

Control key REC (record) /
STOP/PLAY/B.SPACE

qj

DPC switch (22, 39)

qk

POWER ON/OFF switch (8,
13)

ql

VOL (volume) +/– buttons
(21)

w;

Speaker

Refer to the pages indicated in parentheses for details.

GB

wz

Memory Stick slot cover (10)

ws

MIC SENS (microphone
sensitivity) switch (17)
CONF(H) (conference,
high)/DICT(L) (dictation,
low)

wd

VOR (voice operated
recording) ON/OFF switch
(16)

wf

DC IN 3V jack (6)

wg

USB connector (52)

wh

Battery compartment (6)

GB

1

VOR (voice operated
recording) indicator (16)

2

“Memory Stick” indicator

3

Folder indication (13, 20)
Displays the current folder.

4

Priority marks (36)

5

Selected message number /
Total message number in the
folder (14, 20)

6

Remaining memory
indicator (17)

7

Remaining battery indicator (7)

 

When the AC power adaptor
(not supplied) is connected,
the indicator does not appear.

8

Alarm indicator (45)
Appears when the alarm is
set for a message.

9

Recording mode indication (50)
• ST: High quality recording

mode (stereo sound with an
external stereo microphone
not supplied)

• SP: Standard play recording

mode (monaural sound)

• LP: Long play recording

mode (monaural sound)

0

Microphone sensitivity
indication (17)
Displays the current
microphone sensitivity
setting with the MIC SENS
(microphone sensitivity)
switch:
• H (high): CONF(H)

position is selected to
record at a meeting or in a
quiet/spacious place.

• L (low): DICT(L) position

is selected to record for
dictation.

qa

Counter /Remaining time
indication /Recording date
and time indication /
Message name indication/
Current time indication (26,
27)
The display selected with the
DISPLAY button appears.

The effect of the back light of the
display window may be reduced
in a bright location.

GB

B

Clock setting display appears when you insert batteries for the first time or
after the unit has been without batteries for a certain period of time. Please
refer to steps 3 to 6 in “Step 2: Setting the Clock” on pages 8 and 9 to set
the date and time.

Connect the AC power adaptor AC-E30HG (not
supplied) to the DC IN 3V jack of the unit and to
the wall outlet. Do not use any other AC power
adaptor.

4

GB

The battery indicator on the display window shows the battery condition.

• Do not use manganese batteries for this unit.
• When you replace the batteries, insert the new ones within 3 minutes after you

remove the exhausted ones. Otherwise, the display may show the clock setting
or incorrect date and time when you re-insert the batteries. In this case, set the
date and time again. The recorded messages and alarm setting, however, will
remain.

• Do not charge dry batteries.
• When you are not going to use the unit for a long time, remove the batteries to

prevent damage from battery leakage and corrosion.

: Replace both of the two batteries with new ones.

   m

  :

The “LOW BATTERY” is displayed
and the unit will stop operation.

 (Using Sony alkaline batteries LR03 (SG))

In continuous recording:

Approx. 11 hours

Approx. 14 hours

Approx. 16 hours

In continuous playback*:

Approx. 6.5 hours

Approx. 7.5 hours

Approx. 8.5 hours

* When playing back through the internal speaker with the medium volume

level

* The battery life may shorten depending on the operation of the unit.

GB

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 IC recorder is turned on.

The menu mode will be displayed in the
display window.

Press the jog lever up or down (>/
.

Press up (>).

Press down (.).

GB

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

1

Press the jog lever  up  or down  (

>/

.

) to select the digits  of the year.

2

Press ENTER.
The month  digit  will  flash.

3

Set the month,  day,  and the time  in
sequence, then press ENTER.
The menu  mode will  be displayed  again.

The window  will  return  to the normal  display.

Press CANCEL  to return  to the previous  step of the operations.

Press ENTER while the unit is in the stop mode
(page 27).
The current  time  will  be displayed  for  three
seconds.
Note

When no “Memory  Stick”  is inserted or the power  is
turned off, the current time will  not be displayed.

GB

• Make sure to insert or remove the “Memory  Stick”  while  the unit  is turned off.
• Never remove the “Memory  Stick” while the unit is accessing the “Memory

Stick”. (The OPR indicator flashes in orange.)

Do not insert a “Memory  Stick”  in a
different direction. It may cause
malfunction of the unit.