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B

(a)

C

(b)

(c)

Preparing Power Sources

Choose one of the following power sources.

Dry Batteries (see Fig. 

A

-(a))

Make sure that nothing is connected to the DC IN 3V jack.

1

Open the battery compartment lid.

2

Insert two size AAA (R03) batteries with correct polarity and
close the lid.

To take out the batteries (see Fig. 

A

-(b))

If the battery compartment lid is accidentally
detached (see Fig. 

A

-(c))

Attach it as illustrated.

When to replace the batteries

For M-800V
Replace the batteries with new ones when the REC/BATT lamp
dims.

For M-850V
Replace the batteries with new ones when the BATT lamp goes
off and the 

E

 lamp flashes.

Notes

• The unit will play back normally for a while, even after the 

E

 lamp

flashes. However, replace the batteries as soon as you can. If you do not,
the playback cannot be made with normal sound, noise may be
recorded and the recorded sound will not be loud enough (M-850V
only).

• In the following cases you do not need to replace the batteries:

– if the REC/BATT lamp, or BATT lamp flashes with the playback

sound when you turn up the volume.

– if the 

E

 lamp lights momentarily when the tape starts running or at

the end of the tape (M-850V only).

– if the 

E

 lamp flashes during FF (CUE) or REW (REVIEW) (M-850V

only).

Battery life* (Approx. hours)

Batteries

Recording

Sony manganese R03 (SB)

5 (M-850V)

6 (M-800V)

Sony alkaline LR03 (SG)**

14 (M-850V)

15 (M-800V)

* Measured valued by the standard of JEITA (Japan Electronics and

Information Technology Industries Association) (Using a Sony
Microcassette)

** When using a Sony LR03 (SG) “STAMINA” alkaline dry batteries

(produced in Japan)

Note

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

House current (see Fig. 

A

-(d))

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

Note

Specifications for AC-E30HG vary for each area. Check your local voltage
and the shape of the plug before purchasing.

Recording (see Fig. 

B

-(a))

Make sure that nothing is connected to MIC.

1

Press the reset button of the tape counter.

Note

The number in the tape counter will increase when playing back the
forward side, and decrease when playing back the reverse side.

2

Press 

Tx

, insert a standard microcassette with the side to

start recording facing the lid, and then close the lid. (see Fig.

B

-(b)

).

3

Select the desired tape speed.

2.4 cm

 for optimum sound (recommended for normal use):

A 30-minute recording can be made using both sides of the
MC-30 microcassette.

1.2 cm

 for longer recording time: A 60-minute recording can

be made using both sides of the MC-30 microcassette.

4

Choose recording sides.

To record on both sides

Slide DIR so that the FWD indicator turns
green.
Recording will start form the side facing the
cassette holder window (forward side) and
switches automatically to the reverse side at
the end of the side (Auto Reverse).

Note

Make sure the tabs on both sides are not removed. Even if only the
tab on the reverse side is removed, recording cannot be made.

To record on a single side

Slide DIR so that the REV indicator turns
green.
Recording will start form the side facing the
unit (reverse side).

Note

Make sure the tab on the reverse side  is not removed.

5

Set VOR to H, L or OFF.
If you set VOR to H or L, the unit automatically starts
recording the sound and pauses when there is no sound
(you can save tapes and batteries).

H:

 To record at meeting or in a quiet and/or spacious place.

L: 

To record for dictation or in a noisy place.

When the sound is not loud enough, set it to OFF, or the unit
may not start recording.

6

Press 

z

.

nN

 is pressed simultaneously and recording starts. While

the tape runs, the REC lamp (M-850V) or REC/BATT lamp
(M-800V) lights and flashes depending on the strength of the
sound.
Recording level is fixed.

At the end of the reverse side, recording stops and the unit turns
off automatically.

To

Press or slide

Stop recording

Tx

Start recording during playback

z

 during playback (the unit becomes

in the recording mode)

Review the portion just recorded

Push up CUE/REVIEW toward
REVIEW during the recording.
Release the button at the point to start
playback.

Pause recording

Slide 

>

PAUSE in the direction of

the arrow.

Take out a cassette

Tx

Note

Select the 2.4 cm tape speed for recording, if you play back the recorded
tape with another unit. Otherwise, the sound quality may be changed.

Polarity of the plug

E

D

Notes on recording sides

• When recording on both sides, recording will not be made for a few

seconds while the tape is switching sides.

• When you open the cassette holder, the direction of the tape is reset to

the forward side.

• The DIR switch cannot be used during recording.

Notes on VOR (Voice Operated Recording)

• The VOR system depends on the environmental conditions. If you

cannot get the desired results, set VOR to OFF.

• When you use the unit in a noisy place, it will stay in the recording

mode. If the sound is too soft, on the contrary, the unit will not start
recording. Set VOR to H (high) or L (low) depending on the conditions.

To monitor the sound

Connect an earphone to the EAR jack. The monitor volume
cannot be adjusted by VOL.

To prevent a cassette from being accidentally recorded
over (see Fig. 

B

-(c))

Break out and remove the cassette tabs. To reuse the cassette for
recording, cover the tab hole with adhesive tape.

Recording cue markers (M-850V only)

While recording, you can record a special signal on the tape to
mark a specific position.
At the desired position, press CUE MARKER to record a signal.
The REC lamp flashes and a signal will be recorded on the tape.
If you want to record a signal longer than that, press CUE
MARKER as long as you want.
During cue and review, you will hear the beep sound at the
signal position. During playback with the headphones plugged
in, you will hear the signal with low frequency sound at the
signal position.

Notes

• We recommend recording cue markers when there is a break in the

sound.

• The beep may sound differently depending on the marked position on

the tape because the winding speed varies from the beginning to the
end of the tape.

• There may be cases that recorded sound is distorted in a portion where

the CUE MARKER signals are recorded.

Playing a Tape (see Fig. 

C

)

1

Insert a cassette with the side to start playing facing the lid.

2

Select the tape speed to the same speed as that used for
recording.

3

Press 

nN

.

4

Turn VOL to adjust the volume.

At the end of the reverse side, playback stops and the unit turns
off automatically.
If you plug in headphones (not supplied) to the EAR jack, you
will get monaural output from both left and right channels.

To

Press or slide

Stop playback/stop fast

Tx

forward or rewind*

Pause playback

Slide 

>

PAUSE in the direction of the

arrow.

Fast forward*

Slide CUE/REVIEW toward CUE during stop.

Rewind*

Slide CUE/REVIEW toward REVIEW during
stop.

Search forward during

Keep CUE/REVIEW pushed down during

playback (CUE)

playback and release it at the point you want.

Search backward during

Keep CUE/REVIEW pushed up during

playback (REVIEW)

playback and release it at the point you want.

Switch playback side

DIR

* If you leave the unit after the tape has been wound or rewound, the

batteries will be consumed rapidly. Be sure to depress 

Tx

.

Note

If the tape is completely wound or rewound while searching forward/
backward during playback (CUE/REVIEW), the CUE/REVIEW switch
may not return to the center position when you release the switch. In this
case, push back the switch to the center to start playback.

To increase the playback speed (M-850V only)

Slide the FAST PB switch in the direction of the arrow. The
playback speed will be increased.
To return to the original speed, slide the FAST PB switch to the
original position.

Recording/Playback with the
Connected Equipment

Recording with an External Microphone

Connect a microphone to the MIC jack. Use a microphone of low
impedance (less then 3 k

). When using a plug-in-power system

microphone, the power to the microphone is supplied from this
unit.

Note

When recording with an external microphone, the VOR system may not
work properly because of the difference in sensitivity.

Recording from another tape recorder

Connect another tape recorder to the MIC jack using the RK-
G64HG connecting cord (not supplied).
Set this unit to the recording mode and another tape recorder to
the playback mode. In this case set VOR to OFF.

Precautions

On power

•Operate the unit only on 3 V DC.

For AC operation, use the AC power adaptor recommended
for the unit. Do not use any other type. For battery operation,
use two size AAA (R03) batteries.

On the unit

•Use only the 

 (standard microcassettes) with this

unit. Non-standard cassettes cannot be used because their “L”
dimension (see illustration) is different (see Fig. 

D

).

•Do not leave the unit in a location near heat sources, or in a

place subject to direct sunlight, excessive dust or mechanical
shock.

•Should any solid object or liquid fall into the unit, remove the

batteries or disconnect the AC power adaptor, and have the
unit checked by qualified personnel before operating it any
further.

•Keep personal credit cards using magnetic coding or spring-

wound watches etc. away from the unit to prevent possible
damage from the magnet used for the speaker.

•When you do not use the unit for long, remove the batteries to

avoid damage caused by battery leakage and subsequent
corrosion.

•If the unit has not been used for long, set it in the playback

mode and warm it up for a few minutes before inserting a
cassette.

If you have any questions or problems concerning your unit,
please consult your nearest Sony dealer.

Troubleshooting

Should any problem persist after you have made these checks,
consult your nearest Sony dealer.

A cassette cannot be inserted.

t

The cassette is being inserted in the wrong way.

t

nN

 has been already pressed.

The unit does not operate.

t

The batteries have been inserted with incorrect polarity.

t

The batteries are weak. Replace both batteries with new
ones.

t >

PAUSE is slid in the direction of the arrow.

t

The AC power adaptor is connected to the unit only and
you are going to use the unit on batteries.

Recording cannot be made.

t

There is no cassette in the cassette compartment.

t

The tab on the tape has been removed. (Even if only the
tab on the reverse side is removed, recording cannot be
made.) To reuse the tape for recording, cover the tab hole
with adhesive tape. To record on one side only, insert a
cassette with the side to start recording facing away from
the lid (reverse side).

t

Make sure that the orientation of the cassette and the
setting of DIR does not match in case of one-side
recording. Insert a microcassette with the side to start
recording facing the unit, and then slide DIR so that the
REV indicator turns green.

Recording is interrupted.

t

The VOR switch is set to H or L. When you do not use
VOR, set it to OFF.

During CUE/REVIEW the tape stops or does not run.
You cannot fast-forward or rewind.

t

The batteries are weak. Replace both batteries with new
ones.

Recording cannot be erased completely.

t

The head is contaminated. See “Maintenance”.

Playback cannnot be made.

t

The tape has reached the end of the reverse side. Press

nN

 to switch playback side to FWD.

No sound comes from the speaker.

t

The earphone is plugged in.

t

The volume is turned down completely.

The sound drops out or comes with excessive noise.

t

The volume is turned down completely.

t

The batteries are weak. Replace both batteries with new
ones.

t

The head is contaminated. See “Maintenance”.

t

Direct placement of the cassette tape on the speaker
resulted in magnetization and deteriorated tonal quality.

t

Use the unit away from radiowave-emitting devices such
as cellular phones.

The pitch of the sound is unstable.

t

The batteries are weak. Replace both batteries with new
ones.

t

The capstan and the pinch roller is contaminated. See
“Maintenance”.

Tape speed is too fast or too slow in the playback
mode.

t

Improper setting of the TAPE SPEED switch. Set it to the
same speed as that used for recording.

t

The batteries are weak. Replace both batteries with new
ones.

Tape speed is faster than the normal playback speed.

t

The FAST PB switch (M-850V only) is slid in the direction
of the arrow.

Chattering noise is heard.

t

The reset button of the tape counter is accidentally held
and pressed. Press the button again to reset the counter to
“000.”

Rattling noise is heard after the end of the tape is
reached in fast forwarding or rewinding operation.

t

Press 

Tx

 to stop fast forwarding or rewinding.

Maintenance (see Fig. 

E

)

To clean the tape head and path

Press 

nN

 and wipe the head 

1

, capstan 

2

 and the pinch

roller 

3

 with a cotton swab, moistened with alcohol every 10

hours of use.

To clean the exterior

Use a soft cloth slightly moistened in water. Do not use alcohol,
benzine or thinner.

Specifications

Tape

 (normal position type)

Recording system

2-track 1-channel monaural

Speaker

Approx. 2.8 cm (1

1

8

 in.) dia.

Tape speed

2.4 cm/s (

15

16

 ips), 1.2 cm/s (

15

32

 ips)

Frequency range

300 - 4 000 Hz (with TAPE SPEED switch at 2.4 cm/s)

Input

Microphone input jack (minijack/PLUG IN POWER)
sensitivity 0.21 mV for 3 k

 or lower impedance microphone

Output

Earphone jack (minijack) for 8 - 300 

 earphone

Power output (at 10% harmonic distortion)

250 mW

Power requirements

3 V DC batteries size AAA (R03) 

×

 2/External DC 3V power sources

Dimensions (w/h/d)

Approx. 58.5 

×

 100 

×

 22.5 mm incl. projecting parts and controls

Mass

Approx. 110 g (main unit only)

Supplied accessories

Microcassette tape MC-30 (1) (European model and world model of
M-850V only)
Batteries R03 (SB) (2) (European model and world model of M-850V
only)
Carrying pouch (1) (M-850V and European model of M-800V only)

Design and specifications are subject to change without notice.

nN

>

 PAUSE

CUE/
REVIEW

Tx

TAPE SPEED

DIR

Non-standard

Approx. 5 mm

Only standard
microcassettes have
a small indention of
side A.

Approx. 2.5 mm

EAR

Tape
direction
indicators

Standard

M-850V/800V

Operating Instructions
Mode d’emploi (au verso)

Sony Corporation ©2002 Printed in China

3-238-276-22 (1)

Microcassette

-Corder

VOL

EAR

Tape counter

VOR

REC lamp
(M-850V only)
REC/BATT lamp
(M-800V only)

FAST PB (M-850V only)

CUE MARKER
(M-850V only)

BATT/

E

 lamp

(M-850V only)

Microphone

z

>

 PAUSE

CUE/
REVIEW

Tx

TAPE SPEED

MIC (PLUG
IN POWER)

DIR

FAST PB
(M-850V only)

Tx

A

(a)

(b)

(c)

(d)

About This Manual

The instructions in this manual are for the M-850V and M-800V.
Before you start reading, check your model number. The
M-850V is the model used for illustration purposes. Any
differences in operation are clearly indicated in the text, for
example, “M-850V only”.

to the wall outlet

Insert the batteries
with correct
polarity.

AC power adaptor (not supplied)

to DC IN 3 V

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