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2008G04-1

© 

2008.07

IC recorder section
Recording media

recording
A part of the memory capacity is used as a 
management area.

Recording time

HQ:  59 hours 45 minutes
SP:  159 hours 20 minutes
LP:  261 hours 45 minutes

Freqency range

HQ: 260 Hz - 6,800 Hz
SP/LP: 220 Hz - 3,400 Hz

General
Speaker

Approx. 2.8 cm (1 1/8 in.) dia.

Power output

250 mW

Input/Output

Headphone 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
USB connector

[

[

[

Power requirements

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

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

34.6 × 109.2 × 18.4 mm (1 3/8 × 4 3/8 × 3/4 in.)

Mass (incl. batteries)

67 g (2.4 oz)

Supplied accessories

Operating instructions (1)
LR03 (size AAA) alkaline batteries (2)
Headphone (1) (excluding the U.S.A., Canada
and Europe)
Carrying pouch (1) (excluding the U.S.A.,
Canada and Europe)
USB connecting cable (1)
Application software (CD-ROM) (1)

Built-in flash memory 512 MB, Monaural

change without notice.

Design and specifications are subject to

  ..................................................................   3

2-1.   Case (Front) Assy  ...........................................................   4
2-2.   Main Board .....................................................................   5
2-3.   USB Board ......................................................................   5

TEST  MODE 

 ............................................................  

6

4-1. Block 

Diagram 

................................................................   9

4-2.  Printed Wiring Board –MAIN Section– .........................   11
4-3.  Schematic Diagram –MAIN Section (1/2)– ...................   12
4-4.  Schematic Diagram –MAIN Section (2/2)– ...................   13
4-5.  Printed Wiring Board –USB Section– ............................   14
4-6.  Schematic Diagram –USB Section– ...............................   15

5-1.  Case (Front) Section .......................................................   18
5-2.  Case (Rear) Section ........................................................   19

  ..............................   20

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)

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 fl ow) 
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.

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.

Flexible Circuit Board Repairing
• 

Keep the temperature of 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.

This section is extracted 
from instruction manual.

GB

Built-in microphone

(microphone) jack 

Display window

DISPLAY/MENU

DIVIDE

Y(stop)

[9REC (record)

–

(review/fast backward)/

+ (cue/fast forward)

Speaker

J (headphone) jack

Operation indicator

ERASE

VOL (volume) control*

HOLD

/YPLAY/ENTER**

* There is a tactile dot beside the control to show

the direction to turn up the volume.

** The button has a tactile dot.

GB

Slide the HOLD switch to ON. “HOLD” will flash 
three times, indicating that all the functions of 
the buttons are locked.
When the HOLD function is activated during
stop, all the display will be turned off after
“HOLD” flashes.

HOLD

Slide the HOLD switch to OFF.

When the HOLD function is activated during
recording, cancel the HOLD function first to
stop recording.

Even if the HOLD function is activated, you can 
stop the alarm playback. To stop the alarm or 
playback, press

Y(stop).

1

[

USB connector

Battery compartment

Hook for handstrap 
(not supplied)

GB

Folder indication

Microphone sensitivity

Alarm indicator

Selected message number

REC DATE (recorded date)

indication

REMAIN indicator

Remaining memory

indicator

Remaining battery
indicator
Recording mode 
indication
REC (recording) indicator

Repeat play indicator

EASY-S (Easy Search)
indicator
Number of messages in a 
folder/Menu indication/
Counter/Remaining time 
indication /Recording date
indication/
Current time indication/
Messages

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

  Follow the disassembly procedure in the numerical order given.

R

RB two screws

RT two brackets (speaker)

RE speaker

RG case (front) assy