Page 1
3-757-398-32(1)
Microcassette
Dictator/Transcriber
Operating Instructions
BM-850D
BM-850T
1996 by Sony Corporation
Page 2
WARNING
To prevent fire or shock hazard, do not expose the
unit to rain or moisture.
To avoid electrical shock, do not open the cabinet.
Refer servicing to qualified personnel only.
CAUTION
This equipment has been tested and found to
comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when the equipment
is operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may
cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful
interference in which case the user will be required
to correct the interference at his own expense.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.
On power sources
• Operate the unit only on 9 V DC.
• For AC operation, use the AC power adaptor
supplied with this unit. Do not use any other AC
power adaptor as it may cause malfunction.
• Unplug the AC power adaptor from the wall outlet
when it will not be used of an extended period of
time. To disconnect the adaptor, pull it out by
grasping the adaptor. Never pull it by the cord.
• The AC power adaptor which has been supplied
becomes hot if it is connected to an AC outlet for a
long period of time. But, this will not cause any
trouble.
On placement
• Do not install the unit in a location near heat
sources, such as radiators or airducts, or in a place
subject to direct sunlight, excessive dust,
mechanical vibration, or shock.
• Allow adequate air circulation to prevent internal
heat build-up. Do not place the unit near materials
(curtains, draperies) that may block the ventilation
holes.
If you have any question or problem concerning
your unit that is not covered in this manual, please
consult the Sony dealer from whom you purchased
the unit.
Table of Contents
You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate this
equipment.
Owner’s Record
The model and serial numbers are located on the
bottom. Record these numbers in the spaces
provided below. Refer to them whenever you call
upon your Sony dealer regarding this product.
Model No. Serial No.
Precautions
On safety
• Should any solid object or liquid fall into the
unit, unplug the unit and have it checked by
qualified personnel before operating it any
further.
Introduction
About This Manual ......................................... 3
Features ............................................................ 3
Operation Flow Chart .................................... 4
Setting Up
Power Connection ........................................... 6
Setting Up the Unit ......................................... 6
Operations
Dictation ........................................................... 8
Transcription ................................................... 12
Erasing .............................................................. 16
Telephone Recording ...................................... 17
Example of Dictation and Transcription ..... 18
Additional Information
Troubleshooting Guide .................................. 20
Alarm System .................................................. 21
Specifications ................................................... 22
Maintenance..................................................... 22
Location and Function of Controls ............... 23
Introduction
2
Page 3
About This Manual
Features
The instructions in this manual are for the BM-850D
and BM-850T. Before you start, please check your
model number.
The main unit is the BM-850 for both the BM-850D
and the BM-850T. You can use the BM-850D as a
dictator since the BM-850D is supplied with
accessories for dictating, while you can use the BM850T as a transcriber since the BM-850T is supplied
with accessories for transcribing. Any differences in
operation are clearly indicated in the text, for
example, “BM-850D only”.
If you buy the accessories which your model does
not have, your model works as both dictator and
transcriber.
Differences in supplied accessories
Model
Hand Control Unit Supplied Not supplied
Cradle of the hand
control unit
Foot Control Unit Not supplied Supplied
Earphone Not supplied Supplied
BM-850D BM-850TAccessory
Supplied Not supplied
As a dictator (BM-850D)
• The hand control unit remotely controls the BM-
850.
• Dual electronic indexing function signals—“LTR”
(end of letter) and “SEC” (special instructions to
secretary) signals—can be recorded on a tape
during dictating, recording of telephone calls,
listening or in the stop mode.
• The REC/ERASE lamp for checking that the
recording or erasing is done.
• Alarm sound and indication on the display
window informs recording error.
• Recording of telephone calls can be performed
with the use of the optional TL-4 telephone
recording adaptor.
• With the use of the optional DE-45 or MDR-U10M
earphones, you can monitor the sound with the
desired sound level during recording.
Dictation
Hand control
unit
BM-850
As a transcriber (BM-850T)
• The foot control unit allows you to move the tape
without using your hands.
• Auto-stop function quickly accesses instructions
and documents.
• Auto backspace function with the REVERSE
TIME control makes transcribing easy by
enabling the reviewing of the last recorded words
each time listening is resumed.
• Two tape speeds (2.4 cm/sec. and 1.2 cm/sec.)
can be selected according to the user’s needs.
• Rapid erasing function with ERASE and REW
buttons.
• The Electronic “Index OFF” mode allows you to
transcribe a cassette which was not recorded
using a Sony Professional Dictating Machine.
Transcription
BM-850
Foot control unit
Introduction
3
Page 4
Operation Flow Chart
For details, refer to the pages in ( ).
: Necessary step : Optional step
Dictation (BM-850D)
Connect the AC power adaptor to the unit and to an AC outlet (6).
.
Connect the hand control unit (6).
.
Set POWER to ON.
.
Insert a cassette (7).
.
Set TAPE SPEED.
.
Press RESET to set the digital counters to zero.
.
Set the function selector of the hand control unit to DICT.
Speak into the microphone.
Record the SEC signal before giving instructions to the secretary
(10).
Quick review playback and correct the dictated material.
Keep the function selector of the hand control unit pressed
down toward B. SPACE to rewind the tape until the desired
point on the tape is reached. Release the selector and playback
of the dictation begins. When the reviewing is completed, set
the function selector to DICT to proceed with dictation.
.
Set the function selector of the hand control unit to STOP.
Record the LTR signal at the end of each document (10).
.
Press the eject button to remove the cassette.
.
Hand the cassette to your secretary or transcriptionist.
.
Introduction
4
Page 5
Transcription (BM-850T)
Disconnect the hand control unit.
Connect the foot control unit (6).
Set POWER to ON.
Insert the cassette (7).
Set SPEAKER to BUILT-IN or connect earphones.
Press AUTO STOP to make the AUTO STOP indication disappear (13).
Set TAPE SPEED.
Press REW.
When the tape reaches the beginning of the dictated material, a
beep tone is heard and the unit automatically shuts off (12).
.
.
.
.
.
.
.
.
.
Press RESET to set the digital counters to zero.
.
Keep the right side of the pedal depressed.
(When the foot control unit is connected.) (14)
or
Set the function selector of the hand control unit to LISTEN.
(When the hand control unit is connected.) (14)
or
Press LISTEN.
(When the BM-850 is used for operation.) (14)
.
Adjust VOLUME and TONE.
Adjust the starting point for playback with the use of
REVERSE TIME. (When the foot control unit is used.)
.
After transcribing, stop the tape.
Release the pedal. (When the foot control unit is used.) (14)
or
Set the function selector to STOP. (When the hand control unit
is used.) (14)
or
Press STOP. (When LISTEN on the BM-850 is pressed to play
back the tape.) (14)
Set SPEED CONTROL to ON and adjust SPEED.
.
Erase the tape (16).
Introduction
5
Page 6
Power Connection
Note on the AC power
adaptor
Use only the AC power adaptor
supplied. Do not use any other AC
power adaptor.
Porarity of the plug
Setting Up the Unit
Connecting the Hand Control Unit (supplied
with the BM-850D only)
For operation, refer to “Dictation” on page 8.
Rear
to a wall
outlet
to DC IN 9 V
AC power adaptor
(supplied)
BM-850
to
CONTROL
Attaching the cradle
Attach the cradle to the left or right side of the unit. Place the hand control
unit on the cradle while not in use. Insert the cradle into the slots and slide
to secure it.
Left side Right side
UNIT
Hand control unit
Connecting the Foot Control Unit (supplied
with the BM-850T only)
For operation, refer to “Transcription” on page 12.
BM-850
Setting Up
6
to
CONTROL
UNIT
Foot control
unit
Page 7
Cassette Insertion
4
1
5
3
Microcassette
]
2
1 Take up any slack in the tape.
2 Set POWER to ON.
3 Press the eject button to open the cassette holder.
4 Insert a cassette into the cassette holder with the side to
be recorded on or played back facing upward.
Push the cassette into the holder completely.
5 Close the cassette holder.
This unit uses only standard
Microcassettes.
Non standard cassettes cannot be
used because their “L” dimension
(see illustration) is different.
Only standard
Standard
Non standard
Microcassettes have
a small indentation
on side A.
L Approx. 5 mm
Approx.
L
2.5 mm
Notes on the Microcassette
To protect cassettes from accidental
erasure
When a recording is made, the previous
recording is automatically erased.
To prevent erasure, break the cassette tabs.
To reuse a cassette
To record on a cassette with removed tabs,
cover each slot with a piece of plastic tape.
Break out and
remove the tab.
Plastic tape
Setting Up
7
Page 8
Dictation
You need the BM-850D or, if
your model is BM-850T, the
hand control unit.
To use the unit as a dictating
machine, connect the hand
control unit.
For connection, see page 6.
Tips for More Efficient
Dictation
Before you start dictation
• Organize your thoughts.
• Make notes or an outline of
what you want to dictate.
• Check that the cassette is erased.
(See page 16.)
When you dictate
• Identify yourself. (Name,
department, phone number)
• Indicate the type of dictation.
(Memo, letter, etc.)
• Give transcribing instructions.
(Type of stationery, number of
copies and who they are for,
envelopes, etc.)
• Specify distribution. (Names,
addresses, etc.)
During dictation
• Relax and speak clearly, at
normal speed.
• Short sentences are best.
• Include punctuation.
• Spell difficult or unusual words.
• Correct your mistakes. (Review
and redictate, or use SEC signal
to alert the transcriptionist of
changes or corrections.)
• At the end of each document,
record an LTR signal.
Microphone
DICT lamp
SEC
FWD SPACE
REC/ERASE
2
5
Function selector
LTR
Hand
speaker
Hand control unit
3
41
1 Set POWER to ON.
2 Insert a cassette. (See page 7.)
3 Set TAPE SPEED to the desired tape speed, 2.4 or 1.2 (cm/
sec.).
4 Press RESET to set the digital counters to zero.
5 Set the function selector to DICT.
Recording starts. Speak into the microphone. ( appears on the
display window. The DICT lamp on the hand control unit lights up
and REC/ERASE lamp on the BM-850 blinks when the microphone
picks up sound.
To stop the tape
Set the function selector to STOP.
Note
Keep the hand control unit away
from the BM-850 during recording.
Otherwise, noise may be recorded.
Operations
8
Page 9
Digital Counter While Dictating
Note
• The numbers on the digital
counter are memorized even
when the POWER switch is set
to STANDBY or a cassette is
being removed.
1
2
3
1 The LTR (end of letter) counter: Reference for the number of the LTR
signals recorded.
2 Tape counter: Numerical reference for recording and listening.
3 The SEC (special instructions to secretary) counter: Reference for the
number of the SEC signals recorded.
To set the digital counter to zero
We recommend that you press the RESET button before starting dictation.
Keep the RESET button pressed for about one second to reset the LTR
(document), SEC (special instruction) and tape counters to zero.
Convenient Functions
To record LTR (letter) and SEC (secretary) signals
You can record electronic index signals on the tape while the unit is set in
recording (dictation), telephone recording, stop or playback (with the
hand control unit) mode.
LTR (letter=end of document) signal: Record at the end of each
document.
SEC (secretary=special instructions to secretary) signal: Record
before giving instructions to the secretary.
When the AUTO STOP function (see page 13) is activated (AUTO STOP:
ON), the tape automatically stops at each index signal when it is rewound
or rapidly advanced. Documents and instructions can be located without
the user’s having to listen to the entire tape.
• Before dictating, press RESET to reset the counters to zero.
Continued on next page.
Operations
9
Page 10
Dictation (continued)
Notes
• The LTR or the SEC signal
should be recorded with the
intervals of more than 6
seconds.
• Playback sound is muted when
either the LTR or SEC button is
pressed.
• If either the LTR or SEC button
is pressed while turning on the
SPEED CONTROL selector, the
tape will run at normal tape
speed.
To record the LTR signal
Press LTR on the hand control unit.
LTR
Each time the button is pressed, the number
on the LTR (document) counter increases by
one and “LTR” flashes for about three seconds.
To record the SEC signal
Press SEC on the hand control unit.
Each time the button is pressed, the number
on the SEC (special instruction) counter
increases by one and “SEC” flashes for about
three seconds.
Up to nine signals each can be recorded. If more than nine signals are
recorded, “E” appears in the counter display.
Recording time
Select the desired tape speed for recording with the use of the TAPE
SPEED selector.
2.4 cm:For optimum sound (recommended for normal use)
A 60-minute recording can be made using both sides of the MC60BM Microcassette.
1.2 cm:For longer recording time
A 120-minute recording can be made using both sides of the MC60BM Microcassette.
SEC
10
Operations
Monitoring while dictating
The recording can be monitored through earphones. Connect a Sony DE45 or MDR-U10M earphones (not supplied) to the EARPHONE jack
located on the left side of the unit. Adjust VOLUME if required.
to EARPHONE
Earphone (supplied
with BM-850T only)
VOLUME
Page 11
Quick reviewing (playback)/correcting the dictated material
You can easily listen to the dictated material and correct it if required.
1 Keep the function selector of the hand
control unit pressed down toward
B. SPACE to rewind the tape.
to B. SPACE
2 Release the selector. Playback of
the dictation begins.
LISTEN
3 When the reviewing is completed,
set the function selector to DICT to
proceed with the dictation.
to DICT
For fast winding of the tape
Keep the FWD SPACE button of the hand control
unit pressed until the desired portion is reached.
When you have finished dictating
Hand the cassette to your secretary without rewinding the tape.
FWD SPACE
Operations
11
Page 12
Transcription
You need the BM-850T or, if
your model is BM-850D the
foot control unit.
To use the unit as a
transcribing machine, connect
the foot control unit.
For connection, see page 6.
Fast forward
8
Rewind Start/Stop
(Listen)
Foot control unit
2
4
7
1
69
5
3
Tips on Transcription
• Before typing, check the number
of LTR and SEC signals
recorded on the cassette and
review the contents using the
AUTO STOP function.
• Erase the tape when
transcription is finished.
1 Set POWER to ON.
2 Insert a cassette. (See page 7.)
3 Set SPEAKER to BUILT-IN.
4 Set AUTO STOP to make AUTO STOP disappear (AUTO STOP
function is off). (See page 13.)
5 Set TAPE SPEED to the same tape speed as that used for
recording (dictation).
6 Press REW to rewind the tape.
When the tape is completely rewound, a beep is heard and the unit
automatically shuts off.
7 Press RESET to set the digital counters to zero.
12
8 Keep the right side of the foot control unit pedal
depressed to listen to the tape.
9 Adjust VOLUME and TONE.
To stop the tape
Release the pedal.
Operations
Page 13
To rewind the tape
Keep the left side of the foot control unit pedal depressed.
To rapidly advance the tape
Keep the center top of the foot control unit pedal depressed.
Convenient Functions
AUTO STOP
Note
• The tape does not stop at the
LTR or SEC signal even if the
AUTO STOP function is on
while the FF or REW button is
continuously pressed.
EARPHONE
0 REW
p STOP
SPEED CONTROL
SPEED
REVERSE TIME
) FF
SPEAKER
( LISTEN
AUTO STOP function
With the AUTO STOP function, recorded documents and instructions can
be located without the user’s having to listen to the entire tape.
This function activates only in rewind or fast forward mode.
When the AUTO STOP button is pressed, AUTO STOP appears on the
display window and the tape automatically stops at each electronic index
signal previously recorded on the tape. (See “To record LTR and SEC
signals” on page 9.)
• When the LTR signal is detected, the LTR document counter number
increases or decreases, “LTR” blinks for approximately 3 seconds, and a
beep tone is heard. The tape stops automatically.
• When the SEC signal is detected, the special instruction counter
number increases or decreases, “SEC” blinks for approximately 3
seconds, and a beep tone is heard. The tape stops automatically.
Notes
• E-INDEX signal of the Sony
conventional models BM-577
and so on corresponds to the
LTR signal of the model BM-850.
• LTR/SEC signals and E-INDEX
signal do not correspond to the
cue signals used for consumer
type tape recorder.
When the AUTO STOP function is off, the numbers on the LTR
(document) and SEC (special instruction) counters increase or decrease
and “LTR” or “SEC” blinks when an LTR or SEC signal is detected, but the
tape does not stop.
Controlling the speed
Set the SPEED CONTROL switch* to ON to adjust the speed only by the
SPEED control. The tape can be played back at higher or lower speed than
normal.
When the SPEED CONTROL switch is set to OFF, the tape moves at the
normal speed regardless of the position of the SPEED control.
* Tape speed can be changed in the range of about –10% to +50% with the use of
the SPEED control.
Continued on next page.
Operations
13
Page 14
Transcription (continued)
Note
If the LTR or SEC signal is
detected while the tape is being
rewound with this function, the
length of the reverse time may be
longer than the setting you have
selected.
Auto backspace function
This control operates only when the foot control unit is connected.
With the use of the REVERSE TIME control, the tape is rewound a little
each time it is stopped. Then, the last few recorded words can be reviewed
when you resume listening. Adjust the REVERSE TIME control to
determine the length of tape to be rewound.
At “9” position, the tape is rewound so that the dictated material can be
reviewed for about 5 seconds*. At “0” position, the tape stops without
being rewound at all.
Set the REVERSE TIME control to the desired position and keep the right
side of the pedal depressed to listen to the tape.
* Measured at some point near the middle of the tape. The reverse time will vary in
accordance with the remaining length of the tape.
REVERSE TIME : at “9” position
Playback
Tape
Next playback will start from this point.
REVERSE TIME : at “0” position
STOP is pressed at this point.
approx. 5 seconds
playback
STOP is pressed at this point.
Notes
• When the button is pressed
while detecting the index signal
during playback, the switching
time of the operation modes
may be delayed.
• When a cassette which was not
recorded using a Sony
Professional Dictating Machine
(BM-531, 560, 570, 577, 820, 880,
890, etc.) is played back or
wound rapidly (in fast forward
or rewind mode), the switching
time of the operation modes
may be delayed. In this case, set
the unit to the Electronic “Index
OFF” mode. (See page 15.)
Playback
Tape
playback
Next playback will start from this point.
Tape transport operation
To BM-850 Hand control unit Foot control unit
Rewind Press 0 REW. Keep the function Keep the left side of the
selector pressed down pedal depressed.
toward B.SPACE.
Stop Press p STOP. Set the function Release the pedal.
selector to STOP.
Listen Press ( Set the function Keep the right side of
LISTEN. selector to LISTEN. the pedal depressed.
Fast Press ) FF. Keep the FWD SPACE Keep the top center of
forward button pressed. the pedal depressed.
14
Operations
Page 15
Private listening
Connect a Sony DE-45 or MDR-U10M earphones (not supplied) to the
EARPHONE jack.
The sound will be heard through the earphones and speaker sound will be
disconnected.
Selecting the speaker
You can listen to the dictated material through the built-in speaker or the
speaker on the hand control unit by switching the SPEAKER selector to
BUILT-IN or HAND.
Transcribing a Cassette Recorded with a
Dictator Other Than Sony’s
If you transcribe a cassette which was not recorded using a Sony
Professional Dictating Machine, set the unit to the Electronic “Index OFF”
mode.
RESET
p STOP
Notes
• In the Electronic “Index OFF”
mode
— the LTR or the SEC signal is
not recorded even if you
press the LTR or SEC button.
— the AUTO STOP function
does not work even if the
AUTO STOP button is
pressed.
• If you play back in the
Electronic “Index ON” mode
and the cassette was not
recorded using a Sony
Professional Dictating Machine
(BM-531, 560, 570, 577, 820, 880,
890 etc.), neither the operation
buttons, the LTR and SEC
counters nor the auto backspace
function will work correctly.
In the tape stop mode, keep both RESET and STOP pressed for more
than 2 seconds.
Only the tape counter is displayed and the number is reset to “000”. The
unit is in the Electronic “Index OFF” mode.
To return the unit to the Electronic “Index ON” mode
Change the mode by following the procedure above.
Operations
15
Page 16
Erasing
The recording can be erased
rapidly.
REC/ERASE
p STOP
1
2
1 Insert the cassette with the side to be erased up. (See page
7.)
Be sure not to rewind the tape after transcribing. The end portion of
the dictated material to be erased should be positioned at the
recording head.
2 Keep ERASE pressed and then press 0 REW.
The REC/ERASE lamp lights up and 0 appears on the display
window.
The portion of the tape being rewound is erased.
To stop the tape
Press p STOP.
16
Operations
Page 17
Telephone Recording
To record telephone
conversation, connect the
optional TL-4 telephone
recording adaptor* to the
TELEPHONE PICKUP jack.
For further details, refer to the
instruction manual of the
telephone recording adaptor.
* The TL-4 cannot be used on
some telephones.
BM-850
Rear
to TELEPHONE
PICKUP
1
Telephone
TL-4 (not
supplied)
5
2
REC/ERASE
p STOP
3
4
At the beginning of
telephone recording
LTR signal is automatically
recorded for about 3 seconds and
the telephone recording begins at
the same time.
While the LTR signal is being
recorded (for about 3 seconds), the
unit cannot be stopped even
though the STOP button is
pressed.
During telephone recording
Only the LTR, SEC and STOP
buttons are operative.
Note
If the TEL REC button is pressed
when the telephone recording
adaptor, etc. is not connected, the
beep tone will be heard and the
recording will not start.
1 Connect the TL-4 (not supplied) to the unit.
2 Set POWER to ON.
3 Insert a cassette. (See page 7.)
4 Set TAPE SPEED to the desired tape speed.
5 Keep TEL REC pressed for more than a second.
Telephone recording begins. REC/ERASE lamp blinks and (
appears on the display window.
To stop the tape
Press p STOP.
Operations
17
Page 18
Example of Dictation and Transcription
Example of Dictation
Set the function selector of the hand control unit to DICT.
.
Press SEC.
“This is a letter. Type it up and send it by express.”
“Today’s date is July 4, 1996.
This letter is for Mr. Alan R. Jefferson
Pyrene House, Sunbury on Thames,
Middlesex, TW16 7AT, U.K.
Dear Sir,
We received your order for”
.
Press SEC.
“under line
POI-L-5049-D3581”, “quantity 270,000 today.
Shipment can be made within two weeks by Air.
Please accept our thanks for your order.
Faithfully yours,
John S. Smith
Sales Manager
U.K.G. Ltd.”
.
Press LTR.
.
Set the function selector of the hand control unit to STOP.
Blinks for approx. 3 seconds and
stops blinking.
Blinks for approx. 3 seconds and
stops blinking.
Blinks for approx. 3 seconds and
stops blinking.
Example of Transcription
Insert the cassette.
.
Set AUTO STOP to make AUTO STOP disappear.
.
Press REW to rewind the tape.
The unit automatically shuts off when the tape reaches the tape
top.
.
Press RESET to set the digital counters to zero.
.
Keep the right side of the foot control unit pedal depressed.
Tape playback starts.
.
Operations
18
Page 19
.
Mr. Alan R. Jefferson
Pyrene House, Sunbury on Thames,
Middlesex, TW 16 7AT, U.K.
Dear Sir,
We received your order for POI-L-5049-D3581, quantity
270,000 today. Shipment can be made within two weeks
by Air.
Please accept our thanks for your order.
Faithfully yours,
Blinks for approx. 3 seconds and
stops blinking.
July 4, 1996
Blinks for about 3 seconds and
then stops blinking.
John S. Smith
Sales Manager
U.K.G.Ltd.
JSS/hh
.
Stop the tape when the transcription is finished.
If desired, keep ERASE pressed and then, press 0 REW to
erase the cassette.
Blinks for approx. 3 seconds
and stops blinking.
Operations
19
Page 20
Troubleshooting Guide
Should any problem occur, conduct the following
simple tests to determine whether or not servicing is
required. If the problem persists after you have
conducted these tests, consult the nearest
Sony Dictation Systems dealer.
The unit does not operate.
• The AC power adaptor is not plugged into a wall
outlet.
• The POWER switch is set to STANDBY.
No sound from the built-in speaker
• The SPEAKER selector is set to HAND.
• The VOLUME control is set in the MIN position.
• An earphone is plugged in.
• The cassette is not inserted properly.
The tape speed is too fast or too slow.
• The TAPE SPEED selector is set incorrectly.
• The SPEED control is set incorrectly.
• The SPEED CONTROL switch is set to ON.
The tape stops in the rewind or fast forward
mode and the alarm sounds.
• The AUTO STOP switch is activated and a tape
with electronic index signal recorded is used.
• The entire tape has been wound.
The LTR or SEC counter does not work
correctly.
The reverse time of the auto backspace
function is not correct.
• A cassette which was not recorded using a Sony
Professional Dictating Machine (BM-531, 560, 570,
577, 820, 880, 890 etc.) is played back in the
Electronic “Index ON” mode. (See page 15.)
• The reverse time of the auto backspace function
may become longer when the LTR or SEC signal is
detected on the tape.
The switching time of the operation modes
(STOP, LISTEN, FF or REW) is delayed.
• A cassette which was not recorded using a Sony
Professional Dictating Machine (BM-531, 560, 570,
577, 820, 880, 890 etc.) is played back in the
Electronic “Index ON” mode. (See page 15).
• When a button is pressed while detecting
electronic index signal during playback.
Recording functions (Dict, Erase, Telephone
recording, LTR, SEC) do not activate.
• The tape is completely rewound.
• The cassette tabs have been removed.
The hand control unit or the foot control
unit does not operate.
• The plug is not connected to the CONTROL UNIT
connector firmly.
• The BM-850 is operated with the tape operation
buttons on the BM-850. Press STOP and proceed
with the operation on the hand control unit or the
foot control unit.
Sound drop-outs, loss of high frequency
sounds, or excessive noise
• The heads are dirty. See “Maintenance”.
Erasing is unsatisfactory.
• The erase head is dirty. See “Maintenance”.
The LTR or SEC signal can not be recorded.
• The unit is in the Electronic “Index OFF” mode.
(See page 15).
The LTR or SEC counter is not indicated.
• The unit is in the Electronic “Index OFF” mode.
(See page 15).
Additional Information
20
Page 21
Alarm System
An alarm sounds and an indication appears on the display window in the following situations.
Alarm system Situation To release alarm system
When you press a button.
m A beep is heard and †
blinks.
The unit shuts off.
m A long beep is heard and †
blinks.
m “E” appears.
The unit shuts off.
m A short beep is heard and
“LTR” or “SEC” blinks.
When you press a button.
m A beep is heard.
When you press a button.
m Short beeps are heard.
• No cassette is inserted.
• The cassette’s safety tabs have been
removed.
• End of tape
• The tape is torn.
• The number of LTR or SEC signal
exceeds 9.
• Either LTR or SEC are detected
while the tape is wound rapidly (in
fast forward or rewind mode) and
the AUTO STOP function is on.
• When you press the TEL REC
button except in the stop mode.
• When you put the hand control unit
in the dictating mode during the FF,
REW, ERASE or TEL REC mode.
• When you press the TEL REC
button though telephone recording
adaptor, etc. is not connected to the
TELEPHONE PICKUP jack
properly.
First, release the button, then
• Insert a cassette.
• Insert a new cassette or cover the
safety slot.
• Rewind the tape.
• Insert a new cassette.
• Do not press LTR or SEC button
more than 9 times.
• “LTR” or “SEC” stops blinking
and lights up automatically
when about 3 seconds have
passed.
• To stop alarm sound, release the
TEL REC button, or put the hand
control unit in the stop mode.
• To start recording, put the BM850 in the stop mode first and
then start recording.
• Connect it properly.
Additional Information
21
Page 22
Specifications
Tape
y (normal position type)
Recording system
4-track 2-channel monaural
(L channel for electronic index signals, R channel for
sound signals)
Tape speed
2.4 cm/s (15⁄16 in./s), 1.2 cm/s (15⁄32 in./s)
Fast winding time
Approx. 1 min. 50 sec. (2.4 cm/s) with Sony
microcassette MC-60BM
Frequency response
200 – 4,000 Hz (at 1.2 cm/s)
200 – 6,000 Hz (at 2.4 cm/s)
Speaker
Approx. 5.7 cm (21⁄4 inches) dia.
Power output
350 mW (at 10% distortion)
Input
TELEPHONE PICKUP (minijack)
Sensitivity 0.2 mV
Input impedance 10 kilohms
Output
EARPHONE (minijack)
for 8 – 300-ohm earphones
CONTROL UNIT connector
for hand control unit or foot control unit
Power requirements
9 V DC
DC IN 9 V jack accepts the supplied AC power
adaptor for use on 120 V AC, 60 Hz
Power consumption
14 W (with the supplied AC power adaptor)
Dimensions
Approx. 200 x 70.5 x 245 mm (w/h/d) (77⁄8 x 27⁄8 x 93⁄4
inches)
including projecting parts and controls
Mass
Approx. 1.2 kg (2 lb 11 oz)
Accessories supplied
AC power adaptor (1)
Hand control unit (1, BM-850D only)
Cradle for the hand control unit (1, BM-850D only)
Foot control unit (1, BM-850T only)
Earphone (1, BM-850T only)
Maintenance
Pinch roller
Erase head
Record/playback head
Cleaning the heads
To produce optimum sound, clean the tape heads
after every 10 hours of use.
First, disconnect the AC power adaptor. Press EJECT
to open the cassette compartment lid. Moisten a
cotton swab or a soft cloth with alcohol, and wipe
the parts shown on the left.
Cleaning the cabinet
Clean the cabinet with a soft cloth slightly moistened
with a mild detergent solution. Never use strong
solvents, such as thinner or benzine, since they may
damage the finish.
Capstan
Design and specifications are subject to change without
notice.
Optional accessories
Hand control unit HU-80
Foot control unit FS-85
Earphone DE-45
Headphones MDR-U10M
Telephone recording adaptor TL-4
Telephone pickup TP-15
Message coupler TL-2
Cleaning kit KK-31
Your dealer may not handle some of the above listed
optional accessories. Please ask the dealer for detailed
information about the optional accessories.
Additional Information
22
Page 23
Location and Function of Controls
For details, refer to the pages indicated in ( ).
1
2
3
4
5
!¢ !∞
!§ !¶
6
7
8
9
!º
!¡
!™
!£
1 Eject button
Press to eject the cassette.
2 Display window (Back cover)
3 Built-in speaker
4 REC (record)/ERASE lamp (8, 16)
5 POWER switch
6 Cassette holder
7 SPEED control (13)
8 VOLUME control
9 TONE control
0 REVERSE TIME control (14)
!¡ SPEAKER selector (15)
!™ TAPE SPEED selector (12)
!£ SPEED CONTROL switch (13)
!¢ RESET button (9)
!∞ AUTO STOP button (13)
!§ TEL REC (telephone recording) button (17)
!¶ r ERASE button (16)
!• 0 REW (rewind)
!ª p STOP
@º ( LISTEN
@¡ ) FF (fast forwad)
Left side
Rear
!• !ª @º @¡
Left side
@™ CONTROL UNIT connector (6)
@£ EARPHONE jack (10, 15)
@™ @£
Rear
@¢ TELEPHONE PICKUP jack (17)
@∞ DC IN 9 V (6)
@∞@¢
Additional Information
23
Page 24
Display Window
123 4
6578
1 ( indicator
Displayed while the tape is being transported
in the forward direction.
2 0 (rewind) indicator
Displayed while the cassette is being
rewound.
3 ) (fast forward) indicator
Displayed while the tape is advanced rapidly.
4 AUTO STOP indicator
Displayed when the AUTO STOP button is
pressed (AUTO STOP function is on).
5 LTR (letter) counter
End of letter counter
Displays the number of end-of-letter signals
(i.e. the number of documents) recorded.
6 SEC (secretary) counter
Special instructions for secretary counter
Displays the number of special-instructionsfor-secretary signals recorded.
7 Tape counter
8 † (cassette) indicator
Normally this indicator is not displayed.
However, the indicator blinks in the
following cases:
• One of the TEL REC, LTR, SEC and ERASE
buttons is pressed or the function selector
is set to DICT when no cassette is inserted
or when the cassette’s safety tabs have been
removed.
• A tape reaches the end.
• A tape is torn while being rewound.
Notes
• It may be difficult to read the liquid crystal counter
display due to the watching angle.
• If you play back a cassette which was not recorded
using a Sony Professional Dictating Machine, set the
unit to the Electronic “Index OFF” mode (see page 15).
Sony Corporation Printed in Japan
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