How toassembleand use[Name of each part]

Estimated assemble time: about 60 minutes※ You can see the assemble video on 大人の科学 .net( otonanokagaku.net)※ The turntable is balanced to rotatesmoothly, so be careful not to apply extra
force
SpeakerNet
Speaker
Cover
RecordHolderTurntable

33

33

45

Slide BE

Armrest33

D Spring C

B

Input Terminal
33 (IN)
45
Connect a sound source
device, music, or soundyou want to record.
Connect the cable tothis dedicated
3.5mm audio terminal.

OUT

45

RecordSlide A
Needle Pressure
Adjusting Device

EP
Adapter

45

IN

OUT

Slide

Cutter Shaft
WasherRotation Speed Switch
33 → 33 1/3 revolutions per minute
45 → 45 revolutions per minute

Power Terminal
Dedicated USB power
terminal for USB
power cable.

Spare Cutting
Needle x 1

CutterStand
Speaker

Cutting Needle

Recording / Playback
SwitchRecording Switch ○Playback Switch ▷Tonearm

Cutter Head(With Cutting
Needle)Net
HolderWhat is included

Cutter Head

While recording, the cutting
needle will cut the groove inthe record. You can use bothsides of the record forrecording.

The sounds are madeduring playback, when
the Record Needle,
which is at the tip of
the Tonearm, tracks thegroove of the records.

OUT

OUT

Parts
A
Record Needle

Turntable

Built-in Speaker

IN

Volume Switch
Power ON/OFF andsound input/output
volume change.

LED
LED lights up when
the power is on.

Output Terminal(OUT)
You can connect anexternal speaker or
earphone to the unit
as an option.

Main Unit (top)Flange Head Screw×7pcs
Belt(short)Knob×2

Pan Head Screw×11pcs

Belt (long)
Mat
Sponge Seal

Record Needle

Tonearm

Volume
Knob
Record(both sides canbe used)Black x 5 pcs
White x 5 pcs

Arm
Stand

Assemble the Main Unit

Flathead Screw×7pcs

Arm Shaft Shaft
Stopper13Paste the Mat on the Turntable.
Protection Film

Align the hole of the Mat to theaxis of the Turntable. Peel off asmall portion of the Protection
Film and then paste the edge at thecorrect position. Afterwards, peel
off the rest to paste the Mat
entirely.

Put the Arm Stand and the Armrest into the holes on the Main Unit (top).
Press the tip of the Arm Stand and push it in until it clicks.
The Armrest has 2 claws and 1 protrusion on the bottom, insert accordingly into the
hole.

Mat
Arm Stand※ The Mat can not be peeled
off once it is pasted. Handle
with care when pasting.

RotateMain Unit (top)MotorMain Unit (bottom)

Pulley Gear

Things to prepare
Plus screwdriver, power supply with USB
port (such as mobile battery, USB-AC
adapter), sound source device with earphonejack (such as a smartphone or a PC),
headphone jack adapter (one for iPhone),
cutter, ruler, glue.

PCB

3.5mm Audio Cable(stereo / mono)

Caution while setting the screw:

7

When driving the screw, make sure the screwdriver is seatedproperly on the screw head. Apply even pressure whilesetting the screw As the screw is design to etch the plastic,
so if you try to use too much force in setting the screw, it
may break The advisable power balance is a downforce of 7
to the turn force of 3.

3<Warning> Be sure to observe the following to avoid fire or electric shock.

Main Unit (top)Label
1 piece

Fix it in
here.

Mat

Turntable

MONO Seal
Time Counter

42

Hang the Belt (long).

Turn the Main Unit (top)upside down. Hang the Belt(long) around the Turntable
and the protrusion.

・ There is a risk of suffocation, so beware of the small part, such as screws around small children. ・ Beware of the såbly,Modifications, or any use other than the intended use listed in this kit, is strictly prohibited, and is to be done at your own risk. ・ Do
not use if the Main Unit or the parts are damaged or deformed. ・ Do not spill liquids on the unit, or operate the unit if the unit is wet.
・ Operating power is 5V 1.0A. Please use the USB-AC adapter for this operating power. ・ After use, disconnect the USB cablefrom the Main Unit. Do not move the unit while the cable is connected. ・ Please use and keep the unit on a flat and stablesurface.
・ Do not use or store the unit in places exposed to oil slicks or steam, or in places with high levels of moisture or dust.
・ When pulling the Cord to connect/disconnect the USB terminal or power supply terminal, be sure to hold the connector firmly.
Also, do not insert or remove cables with wet hands. ・ When cleaning, be sure to remove the USB cable from the Main Unit.
・ Keep out of reach of small children at all times.

Make the Slide.

Align Slide A and Slide B with the two screw
holes. Fasten with Flathead Screws.
Flathead Screw

Jacket x 2 types (5 each)<Caution> For your own safety, please carefully read the instructions and precautions in this manual before experimenting.

※ Do not apply
force on the
Turntable.

Flathead Screw
Slide B

Main Unit (top): inside
Slide A

※ Make sure thebelt is not twisted.

Hang onto the sideof the larger disc.

We are committed to our product, but if you ﬁnd any parts that are defective or missing, please contact the Editorial Department, and we will replace them with good products.
e-mail: okm@gakken.co.jp (If you contact us by email, be sure to include your address, name, and phone number in the email)Otona no Kagaku

ArmrestProtection
Film※ Do not apply
force on the
Turntable.

USB Power
Cable

・ If metal, water, or foreign matter gets inside the product while product is operating, disconnect the USB cable from the Main
Unit. ・ If smoke, unusual odor, unusual noise, drop, or damage occurs, disconnect the USB cable from the Main Unit. ・ Do not
use the USB terminal or power terminal if it is not completely inserted.
・ Do not use the USB terminal or power terminal with dust attached, and do not bring any metal objects close to the terminal.

14

Attach the Arm Stand and the Armrest.

photo/KOTORI illust/Yumi Uchimura

Belt (long)Slide
The belt is hung onto this protrusion

15

Attach the Slide.

57Insert the Slide into the groove at the end of the Main Unit (top) and thenfasten it with a Flange Head Screw through the Washer from inside.
WasherFlange Head Screw

Flange Head Screw

Assemble the Speaker.

Insert the Speaker Net into the
Speaker Cover. Then, insert the Net
Holder from above.
Finally, attach the Speaker and thenfasten it with the two Flange HeadScrews.

Back

Terminal
Net
HolderPCB※ Insert the tips of the IN Terminal
and the OUT Terminal protrudingfrom the PCB into the corresponding
holes on the side the Main Unit (top).
Insert until they click.

Protrusion※ Place the Cord on the wall asshown in the figure so that theCord does not touch the Belt(long).

SpeakerNet※ Move the Slide and make sure that it moves smoothly.
If the movement is not smooth, try loosening the Flange Head Screw slightly.

6

Install the Pulley Gear and the Motor.

10 Hang the Belt (short).

Knob① Connect the Record Needle, the Motor, and the Speaker to the corresponding
connectors on the PCB.
※ Make sure the connector isinserted from the proper direction.

SpeakerLED

Belt(short)VolumeConnector
Make sure that the Knob, the LED,and the Volume come out correctly.
PCB

Pan Head Screw
Motor

Pass the Record Needle Connector
through the Arm Stand.
Record Needle

Knob

Inside the Main Unit (top).

Turntable※ Do not apply
force on the
Turntable.

Main Unit (top)and attach the Volume Control Knob.

Place the Main Unit (top) onto the Main Unit (bottom), but do not set the screws yet.
Insert the Volume Control Knob into the tip of the Volume which can be seen from thehole of the Main Unit in the following order.

※ Extend the black
Cord as much as
possible.

Main Unit (top)Volume Control Knob

PCB

Switch③ Adjust the position of the PCB so that the Knob, the LED, and theVolume come out of the holes inside the Main Unit (top).
Knob

Motor

VolumeLED

PCB
Hang onto theaxis of the Motor

Main Unit (bottom)

11 Assemble the Main Unit

Main Unit (top)PCB※ Note the vertical andhorizontal orientation of the
Knob.

Motor

⑤ Install the PCB on the Main Unit (top) using the
3 Pan Head Screws. Insert the black Cord
protruding from the PCB into the gap between the 2
white protrusions and then fasten it with the Flange
Head Screw to prevent it from coming off.
Pan Head Screw
Flange Head Screw② Place the knobs on theswitches of the PCB.

Pulley Gear

Place the Belt (short) aroundthe Pulley Gear and theTurntable.

Make sure that the terminals
fit into the holes on the Main
Unit.

Flathead Screw
Pulley Gear

Flange Head Screw

Terminal

Assemble the PCB.

Align the Pulley Gear to the 3 screw holes at the upper left inside the Main Unit(top) and then fasten it with the Flathead Screws.
Next, place the Motor on the lower right in accordance with the 3 screw holes andthen fasten it with the Pan Head Screws.
When attaching the Motor, re-attach the Belt (long) that was previously hung on the
protrusion of the Main Unit to the axis of the Motor.

Groove② Insert the Speaker Cord into
the gap between the 2 black
protrusions on the inside of theMain Unit (bottom) and thenfasten it with the Flange HeadScrew so that it does not comeoff.

※ Match the direction of the two
protrusions on the Speaker Cover andthe direction of the Speaker Cord asin the figure above.

8

Protrusion

Main Unit (bottom)

Speaker
Cover
Main Unit (top)① Insert the Speaker
Cover into the groove of
the Main Unit (bottom).

Main Unit (top)

Cord

Slide

Install the Speaker.

Speaker※ Flat side
is below

Flange Head Screw

Protrusion

9

Click

※ Make surethe back side
faces up here.

WasherSeen from inside④ Push the PBC from above until it clicks.

SpeakerCheck to see if the Knob can
be turned properly.
If you cannot turn it smoothly,loosen and adjust the screws
that hold the PCB.

VolumeMotor

Make sure that the black Cord wiring is correct.

Main Unit (bottom)
Volume※ Make sure theCord exits fromthis position.

Circle Mark
Belt (long)

16

Otona no Kagaku※ Remove the belt from the
protrusion of the Main Unit.

※ Leave theCord outside.

Inside the Main Unit (top).

The black Cord isabout 9 cm from thegroove of the Main
Unit (top).

Fasten with theFlange HeadScrew.

Pass behind theMotor.

① Insert the Volume Control
Knob by a little and then turn theVolume all the way to the left.

② At the position where the Circles
Mark is met (slightly off due to thenotch), insert the Volume Control
Knob all the way down.

17Assemble the Tonearm
1

2

Attach the Record Needle to the Tonearm.

① Remove the Cover attachedto the Record Needle.

Protrusion※② Insert the protrusion of theRecord Needle into the dent
inside the tip of the Tonearm(A). Then push the other side
into the claw part until itclicks (B).

Record Needle

Cover

❶

Align the 2 screw holes
and then fasten the Needle
Pressure Adjusting Device
to the Cutter Head with theFlathead screws.

Flathead Screw
Needle Pressure Adjusting Device

Claw BA

3※ Do not place the Cutter
Head vertically. Pass the shaft
through horizontally as shownin the figure.

Hole

❶

Hole

Cutter
Stand

33
45

33

33

Cutter Shaft

Input Terminal (IN)

Rotation
Speed
SwitchWhen the Volume Switch isturned clockwise, the LED turns
on and the Turntable rotates.
Change the Rotation Speed
Switch and check that therotation speed changes between
45 and 33.

① Place the Tonearm on the
Arm Stand and Armrest.

Tonearm

USB Power Supply: mobile
battery, etc.

USB Power Supply
Monaural (Main Unit)

45

The MONO seal is
attached here.

45

2
When the Cutter
Head is lifted, it isfixed at an obliqueposition.

ArmrestArm Shaft② Align the holes of the ArmStand and the Tonearm. Pass the
Arm Shaft through there, thenstop the tip of the Arm Shaft by
the Shaft Stopper.

Click

Cutter Head

② While pushing down the claw at the end of the Slide using the bottom of
the Cutter Stand, slide the Cutter Stand through the grooves of the Slide.
When removing the Cutter Stand, remove it while pushing down the claw.

Shaft Stopper
CutterStand

Assemble the Cutter Head

18

45

The tip of D

Assemble the Needle Pressure Adjusting Device.

C

B

NeedlePressure
StrongB

After confirming the operation,
attach the Main Unit (bottom).

Pan HeadScrew

A

You can change the needle pressure of the
Needle Pressure Adjusting Device by adjusting
the strength of the Spring.

② Move the Cutter Head to the end while pressing down thehead of the Pulley Gear protruding from the Slide.

Main Unit (top)SlideSpringLight

Pulley Gear

Set the Main Unit with
5 Pan Head Screws, andattach a Sponge Seal toeach screw hole.

Claw

Lift it up.

Needle Pressure
Adjusting Device

Slide

Make sure that the
Pulley Gear (white)that protrudes from the
Slide is rotating
slowly.

５GrooveD❷① With the Cutter Head lifted, turn the Needle Pressure Adjusting Device
counterclockwise so that the distance between A and B is about 1 cm.

LED

33

↑
2 lines

Stereo(soundsource)Prepare the Cutter Head.

Cutter Head

※ Move the Tonearm widely left and right tomake sure it does not get stuck.

E

VolumeSwitchSound source's
output terminal

3.5mm AudioCable↑
1 lineArm Stand

Turn A through B inclockwise direction.
Press the tip of A into thehole of C firmly.
Insert one end of theSpring through the
protrusion of C, andinsert the other end of
the Spring into the holeof D.
Put everything throughE, rotate the protrusionof B and then stop.

For the test, werecommend
recording someone's
voice, as it easier to
cut the human voicethan music.

① Position the Cutter Head and the Cutter Stand so thatthe holes are aligned. Then, pass the Cutter Shaft through.

Attach the Tonearm to the Main Unit.

Align the Spring to Part A~ E of the Needle Pressure
Adjusting Device.

Connect a sound source to the Input Terminal (IN) using a 3.5mm audio cable. Since this
input is monaural, connect the monaural end of the cable to the Main Unit and the stereo
end of the cable to the sound source device.

Attach the Cutter Head to the Main Unit.

If there is extra Cord, push itin.

1Connect the Power Supply and the sound source
to the Main Unit.

Dent

Click

❸

1

USB Power Cable

Cutter Head

Main Unit

Connect the Power Supply Terminal of the Main Unit to the Power Supply throughthe USB Power Cable. Then, check the operation of ❶〜❷ . If it does not work,
remove the Main Unit (bottom). Then, make sure the Belt (long) and (short) havebeen attached properly and are not twisted, and that the connectors have beencorrectly inserted into the PCB.

Cutter Head❷

Let's try cutting (recording) a record!

Check the operation of the Turntable.

※ Keep the Cutter Head raised.

Groove2

4

Be careful not to touch the mark (Needle).

Tonearm: inside③ Push the Cord of theRecord Needle into the groove.

Attach the Needle Pressure Adjusting Device
to the Cutter Head.

Main Unit (bottom)

A
Sponge Seal

Spring
E

D

C

B

A

ProtrusionE
The tip of D.

Otona no Kagaku

B③ Insert the Cutter Stand into the
Slide until it clicks. Connect theCord of the Cutter Head to theconnector of the black Cord.

Black Cord

The completion of
the Needle Pressure
Adjusting Device.
Insert until it hits
this protrusion.

PulleyGear'shead

It's done!

Slide

You can release the Slide's gear
(black) by pressing the head of
the Pully Gear (white).

Move the Cutter Head to the end.

19

６

Set the Record.

Start moving the Cutter Head.

Push the Cutter Stand slightly forward, and make sure that the gear is engaged
and the Cutter Head slowly starts to move in your direction (front side).
※ If the Record's
surface is dirty or
dusty, wash it withrunning water anddry it thoroughly
before using.

Record Holder(counterclockwise)
Pick up one Record
for test recording.

1

The Cutter Headstarts moving slowly
toward you.

Set the Switch and the Volume Knob.

If you put the Time Counter on the Record, you can see the starting and theending positions of the cutting on the Record and the approximate recording
time for each rotation speed.
スタート位置スタート位置 1分
スタート位置1分 2分
1分
スタート位置スタート位置
2分
2分 3分
4分
スタート位置 スター
3分
ト位置
1分1分
3分
4分
4分エンド1分
1分
2分2分
エンド
2分
エ
ン
ド
Start Position
2分
スタート位置
3分3分
3分
1 minute
4分 3分 エンド 33 1分
45
エンド
2 minutes
エンド エンド 33 45 2分
3 minutes スタート位置
Start Position
Mountain
4 minutes
１1分
minute
3分
End
fold
22分
minutes
エンド 33 45
スタート位置３ minutes

Set the Recording / Playback Switch to ” ▷ (Playback)”.
Make sure that the Rotation Speed Switch is set to ”45”.
Turn the Power on and turn down the Volume.

Rotation Speed
SwitchRecordRecord

33

33 33
45

33

Recording /Playback
SwitchTurntable

Volume

33

33

45

33

45

33

45

45
45
33

Set the Switch and the Volume Knob.

Set the Recording / Playback Switch to"○ (Recording)”and the Rotation Speed
Switch to”45 (right side)”.
When the Volume Switch is turned ON, the LED lights on and the Turntablerotates. Turn the Volume Knob to about 90°.
After a short time, the head of the Pulley Gear that has been pressed willautomatically rise.
The tip of the Pulley Gear clicks
up, but it is not yet engaged with
the Slide's gear.

Rotation
Speed Switch

33

45 33
33

45

Recording /Playback
Switch7

Lower the Cutter Head to play the sound source. Then,
perform a test cutting for about 10 seconds.

① After lowering the Cutter Head gently and putting the Needle on the
Record, play the sound source. The groove of the sound is being cut.

2

33

45
33

Raise the Tonearm and gently place the Record Needle.

Place the Record Needle in theoutermost groove. As you raise theVolume, the recorded sound comes out
from the Speaker.

Tonearm

33

Cutter Head

45

45

33

Cut out the jacket from the jacket paper with a cutter and fold it in the middle.
Then, fold and glue the left and the right sticking margins to complete thejacket.
Sticking Margin(Plain)
Fold
Glue
★

45

Y

PLA

Y

PLA

Record Needle

Y
PLA Y
A
YPL
PLA

※ Due to the difference in needle pressure between cutting
and playback, the rotation speed during playback is slightly
faster.

Y
PLA

A larger label looks better,but it will limit the area you
can use for cutting.

Label the Record

Y

PLA

Y
Play
PLA after
lowering the
Needle.

LED
90°

from the label and use
it.

★

Groove33

スタート位置1分

Let's make a record jacket.

Align the mark ★

Scum

45
33
45
45

45

the Record Holder.

45

ス
タ
ート
位
1 置
4
2 分
エ 分
ンド
3分分

33

45

LED

33

Valley
2分 ト位置エンド
スター
2分
3分 1分 スタート位置
fold
4分
3分
1分
ト位置 スタート位置
2分スター
エンド
エンド 33 45
スタート位置
2分1分
3分
スタート位置
1分
4分
1分
3分2分
2分1分
エンド
ト位置 スタート位置
3分
2分33 45 スター
エンド
3分2分
4分
3分 4分 1分3分
スタート位置
1分
エンド
4分
エンド
33 2分
45
エンド
2分1分
エンド3分
3分2分
エンド 33 45 エン
3分
ド 33 45 Cut the Time Counter
Place the loop throughエンド 33 45

45

33

3分
4分 End1分

45

45

Attach the Record
Holder during playback.

45

33

The Pulley Gear
(white) is engaged
with the Slide's gear
(black).

4

A convenient Time Counterthat can show the recordable area.

Let's play what was recorded!

ス
1 ター
2 分 ト位
置
3分分
エ
ンド

3

Place the Record on the Turntable and turn the Record
Holder counterclockwise to hold the Record.

Put the Record on the
Turntable. You canpaste the label neatly
by using the axis.

Label

Earphones and external
speakers can be connectedto the Output Terminal.
33

45

Volume5Play the sound source at the maximum volume and makesure that the sound is coming out from the Cutter Head.

② Since this is a test cutting, after recording for about 10 seconds, raise the Cutter
Head and turn off the power. Then, stop the sound source. This ends the test cutting.

If the sound is cracked or the Cutter Head is shaking,slightly lower the Volume of the Main Unit.
Remove the tube. Set it aside,
but don't throw it away!
Cutter
Head

Y
PLA

Y
Y
PLA PLA AY
PYL
PLA

Y

External speaker, etc.

Attach the tube
for protection.

Sound source(maximum volume)

PLA

3

Cutter Head

RecordY
PPLA

Since there may be scraps stuckin the groove, wash the surface
with running water and dry it well.

※ Once theadjustment iscompleted, returnthe sound file backto its beginning.

P

STO

20

Otona no Kagaku

When playback
is finished.

Let's listen to a commercial EP Record!
After moving the Cutter Head all the way back, push the claw of the Slidefurther down so that the Cutter Head protrudes about halfway out from the Main
Unit. For a donut record, set the EP Adapter after placing it on the axis.

Tonearm

EP Adapter※ Be careful not
to pull the Cord
too much.

Return the Tonearm to theArmrest and turn off the power.
Armrest

P
STO

Scum

Adjust the volumeof the Cutter Headwith the Volume
on the Main Unit.

OutputTerminal

Use a small label if
you want to maximize
the cutting area.

Record※ When a device is connected to
the Output Terminal, no soundwill come out from the built-in
Speaker of the Main Unit.

※ During recording, scraps are produced as a result of
cutting the grove. Remove the scraps once therecording is finished.

P
STO P
O
PST
STO

P

STO
P

STO

P
STO

EP Record

How to adjust
During the playback, if the noise is loud and the sound is low, orthe needle jumps, refer to the next page. Adjust the sound source's
volume and the needle pressure and then repeat the test cutting
using a different location of the same disk.

※ The Volume can be adjusted
from the side using your finger.
How to adjust the recording level on the next page.

21

How to adjust the recording level

What if the Cutting Needle is worn? How to check and replace the Needle.

In order to cut it properly, it is necessary to adjust the needle pressure and the Volume according to the sound source. You may not be able torecord well at first, but repeat the test recording and playback while changing the needle pressure and the volume condition little by little tofind the optimal balance.

Tip

Change the Cutting Needle

The blade of the Cutting Needle wears out after recording many times, causing the recorded
sound to be noisy. Replace with a new needle if you are concerned about the noise.

The basic setting is to adjust the Volume of the Main Unit to 90 degrees (at 9 o'clock position). Then, set theneedle pressure to a position where the screw is about halfway out.
Perform a test playback. You can raise the Volume if the needle is not skipping.
Try to aim for the maximum volume without having the needle skip.
Since the most inﬂuential factor in cutting is the state of the Cutting Needle, repeat the test in the shortest
amount of time possible in order to not wear the needle out.
To adjust the needle pressure and the volume, refer to the graphs below.

Relationship between the worn state of
Cutting Needle and Needle Pressure

Relationship between the worn state of
Cutting Needle and the volume

Needle worn state

Needle worn state

Small

Small

The rotation speed may
be slowing down.

The tip of D.

Bearing

Claw
Protrusion
Claw(spreading
outward)

The tip of D.

AA
Cuttingworks well.

Turn A clockwise will
enlarge the tip of D.

Turn A clockwise will
enlarge the tip of D.

NeedleStrong Pressure

Light

Noise is noticeable.
The needle may
be skipping.

Cuttingworks well.

Large Volume

Small

Protrusion
Claw(not spreading
outward)※ For safety, attach thetube to the tip of the
Cutting Needle.

To remove the needle, spread the left
claw and turn the needle to remove
the protrusion. Then, pull the needle
down.

※ If the width of the
Needle Holder is wide,squeeze it back with yourfingers. Otherwise, theneedle will be loose.

Protrusion
Note the directionof the needle.

Flat surface

To attach a new needle, slide the tube at
the end of the needle through thebearing in the middle of the Cutter
Head while spreading the claws toengage the protrusion.

Noise is noticeable.
The needle may
be skipping.

The needle may
be skipping.

Large

Method to reduce needle jumping
Depending on the sound source, the needle may skip evenwith the above adjustment.
In that case, using an equalizer may improve thesituation.
Read the article on page 12 and try again.

Check here after setting the Cutting Needle!

目安 Needle is not set correctly, the vibration of the sound can not be
If the Cutting
17mm
transmitted properly and the movement of the needle will be weakened. Also thenoise will increase due to the needle trembling.

1 Is the needle centered?

Large

Move the needle with your finger sothat it is in the center.
目安
17mm

For the test cutting, try recording several recordingsof about 10 seconds each, on one disk.
Push the tip of the Pulley Gear coming out of the Slide. Move the Cutter Head and thenstart recording on areas where a groove has not been cut yet.

Cutter HeadCreate multiple 10
seconds grooves ona single disk.

Is the bearing position of
2 theCutter Head correct?
The tip of the
Pulley Gear

Slide

目安
17mm

When the bearing of the Cutter Head isexactly in the middle of the square
目安to theframe, it transmits the vibrations
17mm
needle neatly. If the positionof thebearing is shifted up or down, adjust it
back to the middle.

【Front】

17mm【Side】※ As the tip of the Pulley Gear reaches to the end, remove the needle so that
it will not continue looping the same groove and damage the Record. Carefully
check the time counter for the recording time.

22

Otona no Kagaku

23

Q &A

◆ CordMake sure that thecord is connected.

Q : I have trouble cutting.
A : ① Refer to the figure on theright to make sure that theassembly and the setting are◆ Position of Cutting Needle
Make sure that the needle isproperly installed.
◆ Record Holder
During cutting or playback,make sure the Record Holder
is installed firmly.

◆ Needle pressureadjusting mechanism.

Make sure that the needle
pressure is not too light or
too strong.

correct.
② The Cutting Needle may be◆ Recording /Make sure that the
Switch is at "○" during
cutting and at " ▷"during playback.

try again (P23).
③ Check to see if the cutting

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needle is mounted in thecorrect direction (P23).
④ If the Record is dirty or
covered with dust, wash it off
with running water or diluted
neutral detergent and dry it

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45

Playback Switch

worn. Replace the needle and◆ SlideBefore cutting, push the
Slide lightly from the backto the front. Make sure that
the Pulley Gear and the gearof the Slide are engaged.

◆ Volume
If the Volume is small, the needle will
not move. Turn the Volume up until
you can clearly hear the sound fromthe Cutter Head.

Q : The sound coming from the Cutter Head is trembling.
A : If the Needle Holder is wide, the noise may be heard. See page
69 on how to narrow the width of the Needle Holder.

Also, if there is a gap between the bearing of the Cutter Head andthe Tube of the Needle, the vibration can not be transmitted properly
to the needle and the sound will be trembling. In this case, wrap asmall tape around the Needle as shown below to fill the gap.

OUT

OUT

thoroughly before using.

IN◆ Terminal
Confirm that the soundsource is connected to
the Input Terminal andthe external speaker isconnected to the Output
Terminal.

Q : The scraps from the cutting hinders the movement of the
Cutting Needle.

A : If scraps accumulate, they may get under the Needle or get stuckin the Record Holder, causing the Needle to jump or creating noise.
In that case, please blow the scraps off the disk during the cuttingwith your breath or with a dryer.

Q : The Needle is skipping.

A : If the volume level of the sound source is too high, the vibrationof the Needle may be too high and the sound may not be inputtedproperly. Read the article from Page 12 and Page 22 to try out anequalizer.

Q : I can not record a high volume level of sound and the noise is big.

A : If the volume level of the sound source is low or the output of thedevice is weak, sound may not be inputted properly. Read the article
The Tube may
become thinner
after vibration.

Remove the Tube,
cut the tape into
small piece andwrap it around the
Needle.

When the tube isinserted back to the
Needle, it becomesslightly thicker.
So, the gap between
the bearing and the
Cutter Head is filled.

from page 12 and try out a preamplifier or an equalizer application.

● Plastic materials used in this kit
Needle Pressure Adjusting Device A 〜 E, Arm Stand, Washer, Shaft Stopper (black): POM
Mat, Sponge Seal: EVA, Belt long/short: synthetic rubber, blank record: PS, Other parts: ABS● Metal materials used in this kit
Arm Shaft, Cutter Shaft, Spring (nickel plating): iron, Screws: iron, Cutting Needle: alloy※ When no longer needed, please dispose the device according to the rules and regulations of each local government.

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