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Cat. No. 14-1169
OWNER’S MANUAL
Please read before using this equipment.
Micro-41
Micro Recorder
with Voice Zoom
and VOX
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or at normal speed for maximum sound
quality.
Auto Stop — stops the tape movement
when the recorder reaches the end of the
tape during recording or playback.
Tape Counter with Reset Button — lets
you note specific points in a tape for later
reference.
Quick Record — lets you instantly change
from playback to recording.
Built-In Microphone and Speaker — let
you record and play back notes anywhere.
External Microphone Jack — lets you
use an external, wide range microphone.
Earphone Jack — lets you use an optional
earphone for private listening.
Fast Play — lets you play a tape back
about 30% faster than normal speed, to
save time.
Automatic Level Control (ALC) Circuit
— automatically sets the recording level.
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Three Power Options — you can power
the recorder from standard AC power using
an optional AC adapter, two AA batteries
(not supplied) or a vehicle’s battery using
an optional DC adapter.
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CONTENTS
Preparation ............................................ 7
Connecting Power ........................... 7
Using Batteries ......................... 7
Using AC Power ....................... 9
Using Vehicle Battery Power ... 10
Connecting an Earphone ....... 12
Listening Safely ...................... 13
Traffic Safety ........................... 14
Connecting an
External Microphone ..................... 15
Operation ............................................. 16
Loading a Microcassette Tape ....... 16
Recording ...................................... 17
Voice Activated (VOX)
Recording ............................... 17
Manual Recording .................. 20
Quick Record .......................... 21
Using Voice Zoom .................. 21
Playing a Tape ............................... 21
Rewinding/Fast-Forwarding .... 23
Quick Review ................................. 24
Using the Tape Counter ................. 24
Using Index Marker ....................... 25
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Tape Tips ............................................. 26
Storing Cassette Tapes ................. 26
Preventing Accidental Erasure ...... 26
Erasing Tapes ............................... 27
Care ..................................................... 28
Cleaning the
Tape-Handling Parts ...................... 29
Specifications ..................................... 31
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PREPARATION
CONNECTING POWER
Using Batteries
You can power your recorder with two AA
batteries (not supplied). For the best per-
formance and longest life, we recommend
RadioShack alkaline batteries.
Warning: Dispose of old batteries prompt-
ly; do not bury or burn them.
Cautions:
• Use only fresh batteries of the
required size and recommended type.
• Never leave dead or weak batteries in
the Micro-41. Batteries can leak chem-
icals that can destroy electronic cir-
cuits.
• Do not mix old and new batteries, dif-
ferent types of batteries (standard,
alkaline, or rechargeable), or re-
chargeable batteries of different
capacities.
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1. Slide the battery compartment cover in
the direction of the arrow.
2. Insert the batteries into the compart-
ment and on top of the attached rib-
bon, as indicated by the polarity
symbols (+ and –) marked inside.
3. Replace the cover.
Notes:
• If the RECORD/BATTERY indicator
lights dimly or does not light at all dur-
ing use, replace the batteries.
• If you do not plan to use the Micro-41
for several days, or if you plan to use
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only AC or vehicle battery power,
remove the batteries.
Using AC Power
You can power the Micro-41 from an AC
outlet, using an AC adapter (not supplied),
available at your local RadioShack store.
Cautions:
You must use a Class 2
power source that supplies
3V volts DC and delivers at
!
least 300 mA. Its center tip must be
set to positive and its plug must fit the
Micro-41's DC 3V jack. The recom-
mended adapter meets these specifi-
cations. Using an adapter that does
not meet these specifications could
damage the Micro-41 or the adapter.
• Always plug the AC adapter in to the
Micro-41 before you plug it into the AC
outlet, and unplug the adapter from
the AC outlet before you unplug it from
the Micro-41.
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Follow these steps to power the Micro-41
from standard AC power.
IC
D
C
3
V
RadioSnack
1. Set the AC adapter's voltage switch to
3V.
2. Insert the 3.4 mm outer diameter/1.3
mm inner diameter barrel plug into the
AC adapter's cord to read TIP+.
Note: Inserting the barrel plug into the
Micro-41's DC 3V jack disconnects the
internal batteries.
3. Plug the adapter’s other end into a
standard AC outlet.
Using Vehicle Battery Power
You can power the Micro-41 from a vehi-
cle's battery using a DC adapter (not sup-
plied), available at your local RadioShack
store.
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Cautions:
You must use a power source
that supplies 3 volts DC and
delivers at least 300 mA. Its
!
center tip must be set to positive and
its plug must fit the Micro-41's DC 3V
jack. The recommended adapter
meets these specifications. Using an
adapter that does not meet these
specifications could damage the
Micro-41 or the adapter.
• Always plug the DC adapter into the
Micro-41 before you plug it into the
cigarette-lighter socket, and unplug
the adapter from the cigarette-lighter
socket before you unplug it from the
Micro-41.
Follow these steps to power the Micro-41
from your vehicle's battery.
M
I
C
D
C
3
V
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1. Set the DC adapter's voltage switch to
3V.
2. Attach the 3.4 mm outer diameter/1.3
mm inner diameter barrel plug with the
tip set to positive (+).
3. Insert the barrel plug into the Micro-
41's
jack. This disconnects any
DC 3V
internal batteries.
4. Plug the other end of the DC adapter
into the vehicle's cigarette-lighter
socket.
CONNECTING AN
EARPHONE
You can use an optional mono earphone
1
with a /8-inch (3.5mm) plug to listen to a
tape privately.
Notes:
• You can also use an earphone to mon-
itor what the recorder picks up through
the internal or an external microphone.
• Your local RadioShack store carries a
wide selection of earphones.
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Insert the earphone's plug into the record-
er's EAR jack. The internal speaker auto-
matically disconnects.
Earphone Jack
Listening Safely
To protect your hearing, follow these
guidelines when you use an earphone.
• Set the volume to the lowest setting
before you begin listening. After you
begin listening, adjust the volume to a
comfortable listening level.
• Do not listen at extremely high volume
levels. Extended high-volume listen-
ing can lead to permanent hearing
loss.
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• Once you set the volume, do not
increase it. Over time, your ears adapt
to the volume level, so a volume level
that does not cause discomfort might
still damage your hearing.
Traffic Safety
• Do not wear an earphone while oper-
ating a motor vehicle or riding a bicy-
cle. This can create a traffic hazard
and could be illegal in some areas.
• Even though some earphones let you
hear outside sounds when listening at
normal volume levels, they still can
present a traffic hazard.
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CONNECTING AN
EXTERNAL MICROPHONE
You can use an optional microphone with a
1/8-inch (3.5mm) plug to extend the record-
ing range. Your local RadioShack store
carries a wide selection of microphones.
Insert the microphone’s plug into the re-
corder’s
jack. The built-in microphone
MIC
automatically disconnects.
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OPERATION
LOADING A
MICROCASSETTE TAPE
Note: We recommend MC-60 microcas-
sette tapes for up to 2 hours of recording/
playback time, or MC-90 microcassette
tapes for up to 3 hours of recording/play-
back time. We do not recommend long-
playing microcassette tapes such as MC-
120s because they are extremely thin and
can easily tangle in the playback mecha-
nism.
Follow these steps to load a microcassette
tape.
1. Use a pencil to turn the microcas-
sette's hub and remove any tape
slack. Avoid touching the tape.
2. Press
The cassette com-
STOP/EJECT.
partment door opens.
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3. Insert the microcassette into the
door's guides with the tape’s open
edge facing out and the full reel posi-
tioned toward the top of the recorder.
4. Close the door.
RECORDING
Cautions:
• Do not change the tape speed while
recording.
• Do not force down
when a cas-
REC
sette erase-protection tab is not in
place (see “Preventing Accidental Era-
sure” on Page 26).
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Voice Activated (VOX) Recording
Follow these steps to have the recorder
start and stop recording automatically
based on sound it detects.
1. Set
to
.
VOX
ON
2. Load a tape.
3. Set
on the side of the
TAPE SPEED
recorder as follows:
• To double the tape’s recording/play-
back time, set to
.
1.2
TAPE SPEED
This setting allows 120 minutes of
total recording/playback time on an
MC-60 tape, or 180 minutes on an
MC-90 tape.
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• For better sound quality, set
TAPE
to
. This setting allows 60
2.4
SPEED
minutes of total recording/playback
time on an MC-60 tape, or 90 min-
utes on an MC-90 tape.
4. Press
to begin recording. Both
REC
and
lock down, and the
PLAY
REC
indicator (to the
RECORD/BATTERY
right of the tape counter lights.
)
Notes:
• The
setting deter-
VOL/MIC SENS
mines the sound level that activates
the VOX circuit and starts record-
ing. At higher settings, a softer
sound starts VOX recording. At
lower settings,
a
louder sound
starts VOX recording.
• The built-in automatic level control
(ALC) automatically sets the
recording level once recording
starts.
• When you use the VOX feature,
recording begins when the recorder
picks up sound and stops a few
seconds after the sound stops.
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5. Recording stops when the tape
reaches the end of the cassette. To
stop it sooner, press
.
STOP/EJECT
Manual Recording
1. Set
to
.
VOX
OFF
2. Load a tape.
3. Set
to
to double the
1.2
TAPE SPEED
recording time, or to
sound quality.
for better
2.4
4. Press
(
also locks down).
REC PLAY
Recording starts, the built in automatic
level control sets the recording level,
and
lights.
RECORD/BATTERY
5. For maximum clarity, place the
recorder as close to the sound source
as possible, with nothing between the
source and the recorder that might
block the sound.
6. To temporarily stop recording, slide
to
. To resume recording,
ON
PAUSE
slide
back.
PAUSE
7. Recording automatically stops when
the tape reaches its end. To stop
recording sooner, press
STOP/EJECT.
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Quick Record
During playback, you can press
to be-
REC
gin recording without pressing
first.
STOP/EJECT
Using Voice Zoom
To record a speaker’s voice in a noisy envi-
ronment, set to . Voice
VOICE ZOOM
ON
Zoom uses special filter circuits to enhance
and separate voices from background
sounds resulting in greater voice clarity
during playback.
Note: The setting of VOICE ZOOM affects
the sound only during recording. The
switch’s setting during playback has no ef-
fect.
PLAYING A TAPE
1. Load the microcassette tape.
2. Set
to the speed used
TAPE SPEED
when the tape was recorded.
3. To listen to the tape at normal speed,
press
. To listen to the tape at
PLAY
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about 30% faster than normal speed,
set
to
.
TAPE SPEED
FAST PLAY
4. Adjust
to a comfortable
VOL/MIC SENS
listening level.
5. Press
to stop playback.
STOP/EJECT
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Rewinding/Fast-Forwarding
Slide
to
REW/RE-
REW/REVIEW FAST-F/CUE
to rapidly rewind a tape, or to
VIEW
FAST-F/
to fast-forward a tape.
CUE
Caution: To protect the tape-handling
parts, press
or slide
REW/RE-
STOP/EJECT
to the center when the
VIEW FAST-F/CUE
tape reaches the end.
To hear the tape play as it fast-forwards or
rewinds, slide
to
REW/REVIEW FAST-F/CUE
or
during play-
FAST-F/CUE
REW/REVIEW
back, When you release the switch, normal
playback resumes.
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QUICK REVIEW
During recording, slide
REW/REVIEW FAST-
to
to hear a portion of
REW/REVIEW
F/CUE
what you have just recorded without first
pressing then . Press
STOP/EJECT
PLAY
to resume recording.
REC
USING THE TAPE
COUNTER
You can use the tape counter to note differ-
ent locations on your tape during recording
or playback.
RECORD
Before playing or recording a tape, rewind
the tape completely and press the counter
reset button to set the counter to
. As
000
the tape moves, the counter advances.
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USING INDEX MARKER
Follow these steps to use
INDEX MARKER
to add a special tone to a tape so you can
quickly find that point using the review con-
trols.
1. To mark the beginning of a recorded
section, press and hold down
INDEX
on the back of the recorder,
MARKER,
for at least 3 seconds during record-
ing. RECORD/BATTERY turns off
while the Micro-41 records an index
marker tone on the tape starting at the
moment you press
.
INDEX MARKER
Repeat this step for each desired ref-
erence point.
2. Once you have completed recording,
press
to begin play.
PLAY
3. Slide
to
to rapidly rewind a tape,
REW/REVIEW FAST-F/CUE
REW/REVIEW
or to
to fast-forward a
FAST-F/CUE
tape. As the tape moves while rewind-
ing, you hear the tone index markers
you have previously recorded, letting
you stop at starting points or separator
points in your tape.
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TAPE TIPS
STORING CASSETTE
TAPES
Do not expose microcassette tapes to high
temperatures, high humidity, dust or dirt, or
motors, transformers, or other sources of
strong magnetic fields.
PREVENTING
ACCIDENTAL ERASURE
Microcassette tapes have two erase-
protection tabs — one for each side.
When a tab is in place, you can record
on that side.
To prevent accidental erasure of a tape
recording, use a screwdriver to remove
one or both of the cassette tape’s erase
protection tabs. This prevents
being pressed.
from
REC
Side A Tab
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If you later decide to record on a tape side
after you have removed the erase-protec-
tion tab, place a piece of strong plastic
tape over that side’s erase-protection
hole. Be sure you cover only the hole orig-
inally covered by the erase-protection tab.
Caution: Removing the erase-protection
tabs does not prevent a bulk eraser from
erasing a microcassette tape.
ERASING TAPES
To record over a microcassette tape, sim-
ply record as usual. The cassette deck
records over the previous recording.
You can quickly erase both sides of a cas-
sette tape using a RadioShack bulk tape
eraser.
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CARE
To enjoy your Your Optimus Micro-41 Mi-
cro Recorder for a long time:
• Keep the recorder dry. If it gets wet,
wipe it dry immediately.
• Handle the recorder gently and care-
fully. Don’t drop it.
• Use and store the recorder only in nor-
mal temperature environments.
• Keep the recorder away from dust and
dirt.
• Wipe the recorder with a damp cloth
occasionally to keep it looking new.
Modifying or tampering with the recorder's
internal components can cause a malfunc-
tion and might invalidate the recorder's
warranty. If your recorder is not operating
as it should, take it to your local Ra-
dioShack store for assistance.
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CLEANING THE TAPE-
HANDLING PARTS
Dirt, dust or particles of the tape's coating
can accumulate on the tape heads and
other parts that the tape touches. This can
greatly reduce the performance of the Mi-
cro-41. After every 20 hours of tape player
operation, follow these steps to clean the
tape-handling parts or use a RadioShack
microcassette deck cleaning kit.
1. Remove the batteries and disconnect
any other power source.
2. Open the cassette compartment door
and press PLAY to expose the tape-
handling parts.
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3. Use a cotton swab dipped in tape
head cleaning solution or denatured
alcohol to gently clean the record/play-
back head, pinch roller, capstan and
tape guides.
Record/Playback Head
Tape Guides
Capstan
Pinch Roller
4. Press
to release the
STOP/EJECT
tape-handling parts. Then close the
cassette compartment cover and
reconnect power.
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SPECIFICATIONS
Tape Type ........................... Microcassette
Tracks ........ 2 Tracks, 1 Channel Monaural
Drive System ..................... Capstan Drive
Tape Speed ...... 2.4 cm/sec. (15/16 ips) and
1.2 cm/sec. (15/32 ips)
Recording Time
(with MC-60 Microcassette):
2.4 cm/sec. .................. 30 min. per side
1.2 cm/sec. .................. 60 min. per side
Max. Output ................................ 270 mW
Frequency Response ......... 400–4,000 Hz
at 2.4 cm/sec.
Power Sources:
Internal Batteries ................. 3 Volts DC,
Two AA Batteries
AC Power .......... 120V with AC Adapter
Vehicle Battery ...... 12V with DC Adapter
Dimensions (HWD) ....... 5.0 × 2.5 × 1.0 in.
(126 × 62 × 26 mm)
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Typical Cassette Recording Time
(with Alkaline Batteries) .............. 18 Hours
Weight (with batteries) ... 7.0 oz (198.45 g)
Specifications are typical; individual units
might vary. Specifications are subject to
change and improvement without notice.
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NOTES
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Limited Ninety-Day Warranty
This product is warranted by RadioShack against man-
ufacturing defects in material and workmanship under
normal use for ninety (90) days from the date of pur-
chase from RadioShack company-owned stores and
authorized RadioShack franchisees and dealers. EX-
CEPT AS PROVIDED HEREIN, RadioShack MAKES
NO EXPRESS WARRANTIES AND ANY IMPLIED
WARRANTIES, INCLUDING THOSE OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PUR-
POSE, ARE LIMITED IN DURATION TO THE
DURATION OF THE WRITTEN LIMITED WARRAN-
TIES CONTAINED HEREIN. EXCEPT AS PROVIDED
HEREIN, RadioShack SHALL HAVE NO LIABILITY OR
RESPONSIBILITY TO CUSTOMER OR ANY OTHER
PERSON OR ENTITY WITH RESPECT TO ANY LIA-
BILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR
INDIRECTLY BY USE OR PERFORMANCE OF THE
PRODUCT OR ARISING OUT OF ANY BREACH OF
THIS WARRANTY, INCLUDING, BUT NOT LIMITED
TO, ANY DAMAGES RESULTING FROM INCONVE-
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVE-
NUE, OR PROFIT OR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
EVEN IF RadioShack HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an
implied warranty lasts or the exclusion of incidental or
consequential damages, so the above limitations or ex-
clusions may not apply to you.
In the event of a product defect during the warranty pe-
riod, take the product and the RadioShack sales receipt
as proof of purchase date to any RadioShack store. Ra-
dioShack will, at its option, unless otherwise provided
by law: (a) correct the defect by product repair without
charge for parts and labor; (b) replace the product with
one of the same or similar design; or (c) refund the pur-
chase price. All replaced parts and products, and prod-
ucts on which a refund is made, become the property of
RadioShack.
(Continued)
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(Continued)
New or reconditioned parts and products may be used
in the performance of warranty service. Repaired or re-
placed parts and products are warranted for the re-
mainder of the original warranty period. You will be
charged for repair or replacement of the product made
after the expiration of the warranty period.
This warranty does not cover: (a) damage or failure
caused by or attributable to acts of God, abuse, acci-
dent, misuse, improper or abnormal usage, failure to
follow instructions, improper installation or mainte-
nance, alteration, lightning or other incidence of excess
voltage or current; (b) any repairs other than those pro-
vided by a RadioShack Authorized Service Facility; (c)
consumables such as fuses or batteries; (d) cosmetic
damage; (e) transportation, shipping or insurance
costs; or (f) costs of product removal, installation, set-
up service adjustment or reinstallation.
This warranty gives you specific legal rights, and you
may also have other rights which vary from state to
state.
RadioShack Customer Relations,
200 Taylor St., 6th Floor, Fort Worth, TX 76102
04/99
We Service What We Sell
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
05A99
Printed in Hong Kong
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