Tascam 122MKIII User manual

TASCAM
TEAC Professional Division
122mkH[/
112Rmk1I/112mkII
Stereo Cassette Deck
OWNER'S MANUAL
9101409300

THE APPLIANCE CONFORMS WITH EEC DIREC¬
TIVE 87/308/EEC REGARDING INTERFERENCE
SUPPRESSION
CONFORME AL D.M. 13 APRILE 1989
DIRETTIVA CEE/87/308
Bescheinigung des Herstellers/lmporteurs
Hiermit wird bescheinigt, daB der/die/das
Stereo Kassetten-Rekorder 122 MKHI/112R MKII/112 MKII
(Gerflt, Typ, Bezeichnung)
in Ubereinstimmung mit den Bestimmungen der
AMTSBLATT163/1984, VFG1045/1984, VFG1046/1984
(Amtsblattverlugung)
funk-entstbrt ist.
Der Deutschen Bundespost wurde das Inverkehrbringen
dieses Gerates angezeigt und die Berechtigung zur Uber-
prufung der Serie auf Einhaltung der Bestimmungen einger&umt.
TEAC CORPORATION
Namp des Herstellers/lmporteurs
Note for U.K. Customers
Due to the variety of plugs being used in the U.K., this
unit is sold without an AC plug. Please request your dealer
to install the correct plug to match the mains power outlet
where your unit will be used as per these instructions.
IMPORTANT
The wires in this mains lead are coloured in
accordance with the following code:
BLUE: NEUTRAL
BROWN: LIVE
As the colours of the wires in the mains lead of
this apparatus may not correspond with the
coloured markings identifying the terminal in your
plug, proceed as follows:
The wire which Is coloured blue must be
connected to the terminal which is marked with
the letter N or coloured BLACK. The wire which
is coloured BROWN must be connected to the
terminal which is marked with the letter L or
coloured RED.
— For CANADA -
AC POWER CORD CONNECTION
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH WIDE
BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
CORDE DE CONNEXION CA
ATTENTION:
POUR EVITER LES CHOCS ELECTRIQUES,
INTRODUCE LA LAME LA PLUS LARGE DE LA
FICHE DANS LA BORNE CORRESPONDANTE DE
LA PRISE ET POUSSER JUSQU'AU FOND.
A
CAUTION
RISK OF F LEXTRIC SHOCK
DO NOT OPEN
A
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER
(OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
A
A
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user
to the presence of uninsulated “dangerous voltage” within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
appliance.
This appliance has a serial number located
on the rear panel. Please record the model
number and serial number and retain them for
your records.
Model number_
Serial number_
WARNING: TO PREVENT FIRE OR SHOCK
HAZARD, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
2

SAFETY INSTRUCTIONS
CAUTION:
• Read all of these instructions.
• Save these instructions for later use.
• Follow all warnings and instructions marked on the
audio equipment.
1. Read Instructions — All the safety and operating instructions
should be read before the appliance is operated.
2. Retain Instructions — The safety and operating instructions
should be retained for future reference.
3. Heed Warnings — All warnings on the appliance and in the
operating instructions should be adhered to.
4. Follow Instructions — All operating and use instructions
should be followed.
5. Water and Moisture — The appliance should not be used
near water - for example, near a bathtub, washbowl, kitchen
sink, laundry tub, in a wet basement, or near a swimming
pool, etc.
6. Carts and Stands — The appliance should be used only with
a cart or stand that is recommended by the manufacturer.
6A. An appliance and cart combination should be moved with
care. Quick stops, excessive force, and uneven surfaces may
cause the appliance and cart combination to overturn.
7. Wall or Ceiling Mounting - The appliance should be mount¬
ed to a wall or ceiling only as recommended by the manu¬
facturer.
8. Ventilation - The appliance should be situated so that its
location or position does not interfere with its proper venti¬
lation. For example, the appliance should not be situated
on a bed, sofa, rug, or similar surface that may block the
ventilation openings; or, placed in a built-in installation,
such as a bookcase or cabinet that may impede the flow of
air through the ventilation openings.
9. Heat — The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
10. Power Sources — The appliance should be connected to a
power supply only of the type described in the operating in¬
structions or as marked on the appliance.
11. Grounding or Polarization — The precautions that should
be taken so that the grounding or polarization means of an
appliance is not defeated.
12. Power-Cord Protection — Power-supply cords should be
routed so that they are not likely to be walked on or pinch¬
ed by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and
the point where they exit from the appliance.
13. Cleaning — The appliance should be cleaned only as recom¬
mended by the manufacturer.
14. Power Lines — An outdoor antenna should be located away
from power lines.
15. Outdoor Antenna Grounding - If an outside antenna is
connected to the receiver, be sure the antenna system is
grounded so as to provide some protection against voltage
surges and built up static charges. Section 810 of the
National Electrical Code, ANSI/NFPA No. 70 — 1984, pro¬
vides information with respect to proper grounding of the
mast and supporting structure, grounding of the lead-in
wire to an antenna discharge unit, size of grounding con¬
ductors, location of antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding
electrode. See Figure below.
EXAMPLE OF ANTENNA GROUNDING
AS PER NATIONAL
ELECTRICAL CODE
16. Nonuse Periods — The power cord of the appliance should
be unplugged from the outlet when left unused for a long
period of time.
17. Object and Liquid Entry — Care should be taken so that
objects do not fall and liquids are not spilled into the en¬
closure through openings.
18. Damage Requiring Service — The appliance should be ser¬
viced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the
appliance; or
C. The appliance has been exposed to rain; or
D. T h e appliance does not appear to operate normally or
exhibits a marked change in performance; or
E. The appliance has been dropped, or the enclosure dam¬
aged.
19. Servicing — The user should not attempt to service the
appliance beyond that described in the operating instruc¬
tions. All other servicing should be referred to qualified
service personnel.
3

Introduction
Optional Accessories
This manual covers the 122 MKIII, 112R MKII, and 112
MKII.
Your new TASCAM deck is a professional rack-mount 4-
track, 2-channel recorder/reproducer designed to offer
outstanding audio performance and convenient features.
Speed in operation is enhanced by CPS (Computomatic
Program Search) (112R MKII only), 2-point Autolocator,
and Retum-to-zero. Dolby* HX Pro is provided to improve
high frequency response. The bias is automatically set to its
optimum value for each tape in use (except for the 122
MKIII). With the 122 MKIII, a built-in oscillator (400 Hz
and 10 kHz) along with individual Bias and Level trimmers
can be used to maximize performance with any tapes. The
3-head design of 122 MKIII and 112R MKII produces real¬
time, off-tape monitoring.
We suggest that you read this manual thoroughly
before using the machine. Even though a quick glance
will get you going, careful study will ensure that
misunderstanding won't slow you down.
Table of Contents
Note for U.K. Customers
Safety Instructions_
Introduction___
Optional Accessories_
Controls and Indicators.
Basic Operation___
Recording.
Playback.
Erasing a tape.
Special Features_
Autolocator functions...
Repeat play.
Recording a blank space between programs..
Using CPS (Computomatic Program Search)
(112R MKII only).....
Bias and Recording Level Calibration
(122 MKIII only)_
Dolby HX PRO___
Care and Maintenance__
Specifications.
Block Diagrams.......
.11
.12
.13
.13
........ 1 5
.16
.........1 6
..17-18
..19-20
* Dolby noise reduction and HX PRO headroom extension
manufactured under license from Dolby Laboratories
Licensing Corporation. HX PRO originated by Bang and
Olufsen. "Dolby", the double-D symbol and "HXPRO"
are trademarks of Dolby Laboratiries Lisensing Corporation.
■ RC-134 Remote Control Unit
(for 122 MKIII/112 MKII)
^ Cable length:
5 m/15 ft
E
E
TASCAM rc-134 r EMOTE CONTROL UNIT
a a
□ □ i
l h
142mm
[
[
■ RC-112R Remote Control Unit
(for 112R MKII)
K
Cable length:
5 m/15 ft
TASCAM HC-112R REMOTE CONTROL UNIT
■ LA-112 Balanced Amp/Connector Kit
(for 112 MKII/112 RMKII)
■ PB-32 Series Patch Bay
■ Head Demagnetizer
■ HC-1 Head Cleaner & RC-1 Rubber Cleaner
(U.S. Only)
■ TZ-261 Cleaning Kit
(Except U.S.)

Controls and Indicators

1. POWER : Switches power on to the unit.
Each time you turn on the deck, the last on/off status
of the ADJUST switch (122 MKIII only) and Auto
Reverse ( d D / HD ) switch (112R MKII only) and
the last play/record direction as set with the
DIRECTION switch (112R MKII only) are retrieved from
a backup memory.
2. EJECT : Opens the cassette compartment.
3. PITCH CONT : Provides about a plus or minus 12 %
variation to the tape speed in both Play and Record modes.
Unless you use the function intentionally, make sure that
the knob is at its OFF position for the tape to roll at
normal speed (1-7/8 i.p.s. or 4.8 cm/sec.).
4. REW : Winds the tape at high speed in reverse. If
pressed during Play Pause, enables reverse cueing.
5. F.FWD : Winds the tape at high speed in the forward
direction. If pressed during Play Pause, enables the forward
cueing.
6. STOP : Stops all tape motion.
7. PLAY : Starts playback. If pressed together with
RECORD, starts recording. If pressed during Record Pause,
resumes recording.
8. PAUSE : Temporarily stops play or recording ; to
resume the function interrupted, press PLAY. If pressed
together with RECORD, activates Record Ready mode,
allowing you to start recording by pressing PLAY only.
9. RECORD : Starts recording when pressed together with
PLAY.
10. Tape Counter : Displays the distance from a zero
reference point, selected by pressing RESET (-99 M 59 S
to 99 M 59 S with the 122 MKIII and 112R MKII ; or 00
00 to 99 99 with the 112 MKII).
A type of tape in use (NORMAL, Cr02 or METAL) is
indicated on the right hand side of the tape counter, and the
monitor source too—"INPUT” lights unless tape signal is
feeding the front PHONES and rear OUTPUT.
NOTE
122 MKIII and 112R MKII : The tape counter is not a
clock. Its reading depends on the tape length, relative
tape packs on both reels and other mechanical
factors. Use a watch to measure the correct length of
particular program.
Discrepancy between measurements on the tape
counter and a clock (from beginning to end, one-way
run):
Normal/Cr02
Metal
C-30
+3 min. 00 sec. to
4 min. 00 sec.
—
C-46
+1 min.30 sec. to
2 min.45 sec.
+2 min.00 sec.to
3 min.15 sec.
C-60
-45 sec. to +30 sec.
0 min.00 sec. to
+1 min.15 sec.
C-90
-1 min.30 sec. to
-30 sec.
-1 min.15 sec. to
0 min. 00 sec.
C-30/46 measurements made with narrow hub cassettes.
11. INPUTS, L and R : Allow individual control of both
channel levels.
122 MKIII : Both controls are geared together to allow
simultaneous adjustment of the record level of both
channels. Each channel can be adjusted independently by
holding one knob and turning the other.
12. VU meters : Indicate input or tape signal levels
depending on the transport mode and the MONITOR switch
setting.
13. MONITOR : Setting to INPUT routes the input
signal to the PHONES and OUTPUT jacks, whatever the
transport mode. If set to AUTO, the input signal can be
monitored in Record Pause (Ready) mode, and the tape
signal while recording (off-tape monitoring) or playing.
The VU meters also switch the same way.
The 112 MKII does not provide off-tape monitoring ; you’ll
hear the input signal instead while recording is taking place.
14. OUTPUT : Adjusts the signal level sent to the
OUTPUT jacks on the rear panel.
6

15. MPX FILTER : For making Dolby recording of FM
broadcasts. Without this filter, the pilot tone (19 Hz) and
subcarrier note (38 kHz) contained in FM programs may
"thwart" the DOLBY NR system.
16. DOLBY NR : Selects the Dolby B or C Noise
Reduction system or defeats them.
17. INPUTS, L and R : These 1/4" jacks accept
unbalanced line-level signals.
NOTE
Connecting signals to the front input jacks defeats the
rear input jacks. You cannot use both jacks at one
time.
18. PHONES : The knob adjusts the listening level in the
headphones plugged into the adjacent jack.
19. REPEAT : Initiates repeat play between Memo 1 and
Memo 2 (p.12)
20. MEMO IN : If pressed together with LOC 1 or 2,
stores the current tape point into memory.
O’ MEMO IN cannot operate during repeat play or when
the tape is fast-winding as a result of pressing either
LOC .
21. RTZ : Fast-winds the tape at either direction, stopping
when the tape counter reads 00 00. Inertia may carry the
tape slightly past the 00 00 point.
22. LOC, 1 and 2 : Locate the tape to Memo 1 and
Memo 2 points, respectively.
23. DIRECTION (112R MKII only) : Switches over
the tape side to play or record.
O DIRECTION cannot operate during :
o Repeat play
O Search with LOC or CPS
o Fast cueing
O 4-second blank recording
[cr If pressed while in F.FWD or REW, switches the tape
side to play (or record) only when the tape reaches the
end or beginning or when stop is pressed.
24. Auto Reverse (112R MKII only) : In one-time,
auto-reverse mode ( ~—> ), both sides of the tape play or
record and stop. But, if play or record starts on the reverse
tape side, only that tape side plays or records and stops.
In continuous reverse mode ( CZD ), the entire tape plays
up to five times and stops, or both sides of the tape record
and stop.
25. ADJUST (122 MKIII only) : If pressed when
MONITOR is set to AUTO and the transport is in Record
mode, allows you to press the OSC and 10 kHz switches
and to "fine tune" the BIAS and LEVEL settings. For more
details, see page 15.
26. OSC and 10 kHz (122 MKIII only) : Pressing
OSC after ADJUST allows you to get 400 Hz or 10 kHz
oscillator signals for BIAS and LEVEL adjustments (you
get a 400 Hz signal unless you press the 10 kHz switch).
27. BIAS/LEVEL trimmers (122 MKIII only) : For
precise calibration of the bias/record levels to the tape being
used.
7

□ The Rear Panel
33
112RMII/112MKII
® A
® ®
0
c
©
©)
®
o
©
i
UTPUTS
© ■
r_
REMOTE
©
COKTROL
poooocT )jfps
©
32 31 34
28. INPUT XLR-type jacks : Accept +4 dBm balanced
signals. Pin assignment : Pin 1 is shield (ground). Pin 2 is
Hot (+), and Pin 3 is Cold (-).
29. INPUT UNBAL/BAL switch : Selects either the
XLR-type or RCA input jacks.
30. OUTPUT XLR-type jacks : Transmit +4 dBm
balanced signals to your mixer, monitor amp, etc. Pin
assignment: Pin 1 is shield (ground), Pin 2 is Hot (+), and
Pin 3 is Cold (-).
31. OUTPUT RCA jacks : Transmit -10 dBV
unbalanced signals.
32. INPUT RCA jacks : Accept -10 dBV unbalanced
signals.
33. Blank Panel (except 122 MKIII) : Space for
mounting an optional balanced amp kit (LA-112),
When the LA-112 is installed, you who are using the
112R MKII/112 MKII will have access to the INPUT
XLR-type jacks (#28), the INPUT UNBAL/BAL switch
(#29) and the OUTPUT XLR-type jacks (#30) as with the
122 MKIII.
34. REMOTE CONTROL connector : This 25-pin D-
sub connector is for controlling the transport from the
optional remote RC-112R (for 112R MKII) or RC-134 (for
122 MKIII and 112 MKII), or for fader start from a mixer.
A 25-pin connector (Part No. 53363571-00) and its jacket
(Part No. 5336358100) are optionally available.
Fader start (122 MKIII and 112 MKII only) : Pins 22 and
24 are assigned for this function. The transport will toggle
Play and Pause, as depicted.
8

REMOTE CONTROL
r/-sn( ° ° OO OO O O ° O O O 0)117-^
IMJR OOOOOOOOOOOO /IlN-il
FADER
PLAY !
i
>PIN N0.22
->PIN NO.24
Pin
Signal
Function
22 FADER START
Closed, Play; opened,
Pause
Y
N
23 Not Used
- -
24 GND
Y Y
25
+ 5V
Max. 50mA
Y
Y
Y stands for Yes, N for No.
Input : To activate a function, the pin must be brought to
ground potential for 24 msec or more.
REMOTE CONTROL Pin Assignment
REMOTE CONTROL
r^ifOOOOOOOOOOOOO
iyj\ \ OOOOOOOOOOOO J f/iyj
112RMKII —
122MKIII/112MKH-^
Pin Signal Function
1
Activates Jhe
corresponding transport
mode, active at low level
Y Y
PLAY IN
2 FFIN
tt
Y Y
3 REWIN «
Y
Y
4
PAUSE IN
tt
Y Y
O
STOP IN «
D D
6 REC IN
ft
D D
1
Lets the next deck start
playing during sequential
play of two decks, active at
low level (only when
ordered to provide the
function).
N Y
START COMMAND
8
Not Used
- -
Indicates the tape travel
direction (UP; forward,
DOWN : rewind)
D
10
END TALLY OUT
Indicates either end of the
tape is reached, active at
low level.
N
Indicates the corresponding
mode is activated, active at
low level.
D
12
tt
S3
13
13 SWWil i lW.ll ! ■
tt
D D
O
tt
D D
m
STOP TALLY OUT
ft
D D
REC TALLY OUT
»
D D
Activates reverse side play,
active at low level.
N
Y
18
Indicates reverse side play
mode, active at low level.
N
Y
R. PLAY TALLY OUT
m
REEL PULSE
D D
20
Not Used
- -
21
RTZIN
Fast-winds the tape to
00 00, active at low level.
Y Y
Timing of Tally Outs
Tally
STOP
FAST
F. PLAY
R. PLAY
PAUSE
REC
END
Key Operation
~ Hi - 7
_ J _
! 400m SEC (from Fast mode)
j 650m SEC (from Play mode)
i ^ *
i
I 200m SEC (from Stop mode)
1 800m SEC (from Play mode)
i
< ...*
_ j_
1 450m SEC (from Stop mode)
j 1000m SEC (from R. Play mode)
1 200m SEC (from Pause mode)
l
1
• « ►
j _ _ _
| 450m SEC (from Stop mode)
; 1000m SEC (from F. Play mode)
| 200m SEC (from Pause mode)
t
hh fe
| REC PLAY 50m SEC (from Play mode)
450m SEC (from Stop mode)
[ REC PAUSE 20m SEC (from Pause mode)
j 300m SEC (from Stop mode)
7 _ L
600m SEC
9

Basic Operation
OFF DOB 00C
nn off]
■ 4-H*
MONITOR
INPUT AUTO
O WUSE ^cord
DO
o
\ 1 /
HE]
If you are using the 122 MKIII, first adjust BIAS and LEVEL as per instructions
on page 15.
1. Plug the record source into the front or rear input jacks.
If you have plugged the record source into the rear jacks, set the INPUT switch
(on rear) to the appropriate position.
2. Set the DOLBY NR switch to the desired position, and the MPX FILTER
switch to OFF unless you intend to record FM broadcasts.
3. Set the MONITOR select switch to AUTO.
4. Press and hold RECORD and press PAUSE to activate Record Ready mode.
5. Start your record source and adjust the INPUT controls so that the VU meters
peak at about 0, and adjust the PHONES control for a comfortable listening
level.
6. When every thing is ready, press PLAY to start recording.
7. To stop recording, press STOP. Or press PAUSE to temporarily stop recording;
to resume recording, press PLAY.
Playback
DOLBY NR
OFF DOB DDC
5P
MONITOR
INPUT AUTO
□□
1. Set the DOLBY NR switch depending on the tape in use.
2. Set the MONITOR switch to AUTO.
3. To initiate playback, press PLAY.
Adjust the OUTPUT and/or PHONES level controls as required.
4. To stop playback, press STOP. Or press PAUSE to temporarily stop playback;
to resume playback, press PLAY.
To erase a cassette tape not by overwriting, set the INPUT controls to 0 and press
RECORD and PLAY together.
10
To quickly erase both sides of a tape (except metal tapes), use the optional TEAC
E-2A Bulk Eraser.

Special Features
□ Setting Memo 1 and
Memo 2 points
[ M EMO I
■ N J
□ Checking Memo Points
□ Changing Memo Points
□ Erasing Memo points
□ Locating the tape
%
Press MEMO IN and LOC (1 or 2) together at the desired moment. The tape
counter reading at that moment is stored into memory.
ocf You cannot set any memory points during repeat play or when the tape is
fast-winding as a result of pressing either LOC .
When the tape counter is reset to 00 00, your Memo points are automatically
recalculated, so that they stay the same relative to their original tape positions.
Press STOP and LOC 1/2 together and hold them. The tape counter will read
the corresponding memory point until you release the buttons.
Each time you press MEMO IN and LOC 1 or 2, a new memory point is
established and the previous memory point is erased.
All memory points are erased when you
o Turn off the deck, or
o Eject the tape.
To Memo points : Press LOC 1 to locate the tape to the Memo 1 point, and
LOC 2 to the Memo 2 point.
Auto Play : Press PLAY after LOC. The tape will automatically start playing
at the end of search operation.
Auto Pause : Press PAUSE after LOC. The transport will automatically go
into Pause mode at the end of search operation.
To 00 00 : Press RTZ.
11

A repeat function continually plays a segment between two memory points.
-CD-
repeat
1. Mark the desired start point with MEMO IN and LOC 1, and the end of the
segment you want to repeat with the MEMO IN and LOC 2.
2. Press REPEAT.
The tape will be located to the Memo 1 point and start playing, automatically.
When it plays up to the Memo 2 point, it will again rewind to the Memo 1
point to resume playback.
• To exit the repeat mode, press REPEAT again.
o* REPEAT is locked out during Record or Record Pause (Ready).
■ 122 MKIII/112 MKII: The Memo 1 point does NOT have to be higher than the
Memo 2 point. The tape will play to the higher Memo point on the tape,
rewind to the lower Memo point.
■ 112R MKII : The tape always plays to the Memo 2 point and rewinds to the
Memo 1 point: Memo 2 should be higher than Memo 1.
■ If you press LOC 1/2 during repeat play, the tape will be located to the Memo
1/2 point and start playing or rewind to the lower Memo point.
■ If you press a transport control, the function pressed is activated and the repeat
play mode is temporarily disabled; and the repeat sequence will resume when
you
o Press LOC 1 or 2, or
o Press PLAY when you are somewhere inside the programed loop or at a
point lower than the start point of loop.
112R MKII : To create a repeat loop over both tape sides, use the
continuous reverse mode ( CZD ) :
A : Start point (Memo 1) - - ► : Skip
A : End point (Memo 2) c[> : Forward play direction
— ► : Play
Opposite Tape Side
v Leader
r ■ ■■ " ■ |
Leader f
) Tape
. 1
Tape )
so>
Tape Side Facing You
12

Opposite Tape Side
Opposite Tape Side
Tape Side Facing You
Opposite Tape Side
Tape Side Facing You
Only the last example can either be in one-time, auto¬
reverse ZZD or continuous reversec^Omode.
Recording a Blank Space Between Programs
Pressing STOP while holding RECORD down during Record records 4 seconds of
silence, and the tape stops.
O' When a 4-second blank space is recording, all controls are locked out
except:
STOP, RESET, MEMO IN, CZD , ZZD (112R MKU only), and ADJUST
(122 MKIII only)
O' 122 MKIII : If the OSC LED is lit when you press STOP and RECORD, the
deck only goes into Stop mode.
Using CPS (Computomatsc Program Search) (112R MKU only)
STOP
CPS counts a blank space of about 4 seconds between selections (programs) to
locate the beginning of a specific one, letting the tape start playing after the search
operation.
1. When the tape is stopped, press STOP and MEMO IN simultaneously. The
CPS mode is activated and the tape counter displays "1.”
Pressing STOP and MEMO IN in other transport modes than stop, too,
activates the CPS mode, the transport going into stop.
13

MEMO I
■ N 1
F FWO
2. Specify how many selections from the current tape location is the desired
selection by pressing MEMO IN as many times as necessary. Each time you
press MEMO IN the number in the tape counter window will increment. You
can enter up to 15.
You can hold MEMO IN to scroll up the numbers.
3. Depending on whether your selection is ahead or behind the current tape
location, press F.FWD or REW.
4. Each time a blank space of about 4 seconds is encountered, the tape counter
display will decrement, and at the end of search operation, the tape will
automatically start playing.
■ Before pressing F.FWD or REW in step 3 if any of the following is pressed,
the function pressed is activated and the CPS mode is disabled :
o Transport controls except F.FWD and REW
o RTZ
o LOC 1/2
o REPEAT
■ If you press F.FWD or REW after once search starts, the function pressed is
activated and the CPS mode is disabled.
■ In continuous reverse mode ( CZD ), you can skip to a selection on either tape
side.
In once-through reverse mode ( ZD ), you can skip from the tape side facing
you to a selection on the reverse tape side, but you cannot skip from the reverse
tape side to a selection on the tape side facing you ; the tape will stop when
either end of the reverse tape side is reached.
High speed cueing functions (#4 and 5, page 6): Depending on some conditions such as type of
tape in use, environmental temperature and humidity, etc. reverse cueing may not possibly start, or may start
but not smoothly, if the current tape location is close to the beginning of the tape. Similarly, the forward cueing
may not possibly start as expected if attempted near the end of the tape.
14

Bias and Recording Level Calibration (122 MKIII only)
\is v!/
— 0.«ECORD
L BIAS R
@ ©
0 ©
o
10kHz
Tapes differ considerably in the bias required to record on them and in their
sensitivity. The 122 MKIII allows fine adjustment of bias to exactly match the
tape being used ; also the reference recording level can be precisely adjusted to
compensate for difference in sensitivity among tapes.
■ Before starting adjustment, clean the heads, tape guides, rollers, etc. and
demagnetize the heads and all metal parts in the tape path.
■ In you intend to make adjustment while monitoring through speakers, turn
down their volume to avoid damage to them.
* Have at hand a crisscross screwdriver which fits in with the BIAS/LEVEL
trimmers.
1. Load the tape.
2. Make the following settings :
INPUT level controls to 0 ;
OUTPUT level control to 0 ;
MONITOR switch to AUTO ;
DOLBY NR switch to OFF ;
MPX FILTER to OFF.
3. Press PLAY and RECORD to put the deck into Record mode.
4. Press ADJUST, then press OSC.
5. Turn the BIAS trimmers all the way to the left with the appropriate screwdriver.
6. Slowly turn the BIAS trimmers (one at time) clockwise for maximum reading
on the VU meters.
Suggestions : Turn the trimmers to the left and right alternately to "pinpoint"
the exact maximum position. If the meter needles deflect all the way to the
right, adjust the LEVEL trimmers until the meters read about 0 VU at a
maximum setting of BIAS.
7. Adjust the LEVEL trimmers (one at time) for 0 VU.
8. While alternating the oscillator signal between 10 kHz and 400 Hz by pressing
the 10 kHz switch on and off (still in record mode), adjust the BIAS trimmers
so that the VU meters show almost the same reading at both frequencies.
9. Set the oscillator to 400 Hz (10 kHz LED off) and readjust the LEVEL
trimmers for 0 VU.
Repeat the procedure each time you change the tape, especially when you change
the type of tape.
15

Dolby HX PRO
If the source you are recording is rich in high-frequency
signals, they can adversely affect the accuracy of the
recording and decrease the high-frequency response. The
Dolby HX Pro system takes care of these signals during
recording to prevent the accuracy of the recording from
decreasing and improve the high-frequency response (by 6
dB or more).
The Dolby HX Pro system uses no encoding/decoding
process and a cassette tape recorded with this system can be
played back on any stereo cassette players.
1
250nV\
b/m
HX PF
c
o
O
— :
71
HXPRO
\
U
k
. 4 nl_1_1_I_I_I_J-I-1-1
2 0Hz 50 100 200 500 1 k 2 5 10 20k
A typical example of effect of Dolby HX Pro
(with Normal Tapes)
Care and Maintenance
□ Cleaning the Heads and Tape Guides
All heads and metal parts in the tape path must be cleaned
after every 6 hours of operation, or before starting and after
ending a recording session.
1. Open the cassette door.
2. Using a good head cleaning fluid and a cotton swab,
clean the heads and tape guides until the swab comes off
clean. Wipe off any excess ceaning fluid with a dry
swab.
□ Cleaning the Pinch Roller
the tape path. Slowly move it away again to at least 1 m
(3 feet) from the recorder before turning if off.
122MKIII
Clean the pinch roller at least once each day the deck is
used. Use a good rubber cleancer.
1. Clean the pinch roller with a cotton swab moistened
with rubber cleaner, until there is no visible residue on
the pinch roller
2. Using a clean cotton swab, wipe off all excess rubber
cleaner from the pinch roller. Make certain that there is
no foreign matter remaining on the pinch roller.
112RMKII
Rec/Repro
□ Cleaning the Capstan Shaft
112MKII
After cleaning the pinch roller, clean the capstan shaft with
a cotton swab moistened with head cleaning fluid.
□ Degaussing the Tape Path
Slowly move in to the tape path. Move the degausser
slowly back and forth, touching lightly all metal parts in
16

Specifications
Tape : Compact cassette C-30 to C-90
(Normal/Cr02/Metal)
Track Format : 4-track, 2-channel
Head Configuration
122 MKIII
: 4-track, 2-channel
Record (xl)/repro (xl) combination
head (amorphous)
Half track
Erase head (xl) (ferrite)
112R MKII
: 4-track, 2-channel
Record (xl)/repro (xl) combination
rotary head (permalloy)
Half track
Erase head (xl) (ferrite)
112 MKII
: 4-track, 2-channel
Record/repro head (xl) (permalloy)
Half track
Erase head (xl) (ferrite)
Motor
122 MKIII
: FG servo direct-drive capstan motor x 1
DC servo reel motor xl
DC ancillary motor x 1
112R MKII/112 MKII :DC servo capstan motor xl
DC reel motor x 1
DC ancillary motor x 1
Tape Speed : 4.8 cm/sec. (1-7/8”)
Pitch Control : +/-12% (approx.)
Line Input
- Rear RCA jack/front 1/4” jack
Nominal Input Level: -10 dBV (0.3 V)
Minimum Input Level : -18 dBV (126 mV)
Input Impedance : 20k ohms, unbalanced
- XLR-type jack (standard on 122 MKM; optional on
112R MKII/112 MKII—LA-112 required)
Nominal Input Level: +4 dBm (1.23 V)
Input Impedance : 10k ohms, balanced
Line Output
- RCA jack (rear)
Nominal Output Level: -10 dBV (0.3 V)
Maximum Output Level: -2 dBV (0.8 V)
Output Impedance : 100 ohms
Load Impedance : 25k ohms or more
- XLR-tyep jack (standard on 122 MKIII; optional on
112R MKII/112 MKII—LA-112 required)
Nominal Output Level : +4 dBm (1.23 V)
Minimum Load Impedance : 600 ohms
Headphone Output : 100 mW (8-ohm load)
Bias/Erase Frequency:
122 MKIII: 150 kHz
112R MKII/112 MKII: 100 kHz
Equalization : 3180 ps + 70 ps (Cr02/Metal)
3180 ps + 120 ps (Normal)
Reference Recording Level:
250 nWb/m = 0 VU (315 Hz) (EIAJ);
With Dolby : 200 nWb/m = -1 VU
Remote Connector : 25-pin D-sub (see also page 9)
Power Requirements:
USA/Canada : 120 V AC, 60 Hz
U.K./Australia : 240 V AC, 50 Hz
Europe : 230 V AC, 50 Hz
Consumption :
122 MKID/112R MKII: 23 W
112 MKII: 20 W
Dimensions (WxHxL) : 482 mm x 132 mm (rubber
feet not included)x 356.3 mm (19” x 5-3/16" x 14”)
Weight:
122 MKIH/112 MKII : 8.4 kg (18-8/16 lbs.)
112R MKII : 8.7 kg (19-3/16 lbs.)
Typical Performance
Speed Accuracy:
122 MKIII: +/-0.5%
112R MKII/112 MKII : +/-1.0%
Wow & Flutter! > :
less than 0.04% WRMS
Fast Winding Time :
70 sec. (approx.) with C-60
Frequency Reponse, Overall 2 * (EIAJ, without NR)
122 MKIII : 25 Hz to 20 kHz, +/-3 dB (Metal)
25 Hz to 19 kHz, +/-3 dB (Cr02)
25 Hz to 17 kHz, +/-3 dB (Normal)
112R MKII : 25 Hz to 19 kHz, +1-3 dB (Metal)
25 Hz to 18 kHz, +/-3 dB (Cr02)
25 Hz to 17 kHz, +/-3 dB (Normal)
112 MKII : 25 Hz to 19 kHz, +/-3 dB (Metal)
25 Hz to 18 kHz, +/-3 dB (Cr02)
25 Hz to 16 kHz, +1-3 dB (Normal)
Distorsion 2 * : less than 1.0%, at 1 kHz,
160 nWb/m (Metal)
S/N Ratio 2} (metal tape)
122 MKIII/112R MKII: 60 dB (without NR, ref.3%
THD, WTD)
70 dB (with Dolby-B NR, over 5 kHz)
80 dB (with Dolby-C NR, over 1 kHz)
112 MKII : 59 dB (without NR, ref.3% THD,
WTD)
68 dB (with Dolby-B NR, over 5 kHz)
78 dB (with Dolby-C NR, over 1 kHz)
17

Channel Separation?) : 45 dB or better (l kHz)
Erase Ratio? >:
65 dB or better (1 kHz)
In these specifications, 0 dBV is referenced to 1 Volt, and
0 dBm is referenced to 0.775 Volt. Actual voltage levels are
shown in parenthesis.
n Measurements made with TEAC test tape MTT-111
2) Measurements made with TEAC blank test tapes MTT-
5571 (Metal), MTT-5562 (Cr02) and MTT-5512
(Normal).
□ Specifications and features subject to change without
notice or obligation.
(Illustration shows 122 MKIII. The measurements of the three
models are the same.)

Block Diagrams
-V
112RMKII
REPRO HEAD
INPUTS . UNBAL
(-lOdBVJ
(FREAR)
19

112MKII
TASCAM
TEAC Professional Division
i22MKin/ii2RMKn/ii2MKn
TEAC CORPORATION
3-7-3, Nakacho, Musashino-shi, Tokyo 180, Japan Phone: [phone]
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TEAC UK LIMITED 5 Marlin House, Marlins Meadow, The Croxley Centre, Watford, Herts. WD1 8YA, U.K. Phone: [phone]
TEAC DEUTSCHLAND GmbH
Bahnstrasse 12, 65205 Wiesbaden-Erbenheim, Germany Phone: [phone]
TEAC FRANCE S.A.
17, Rue Alexis-de-Tocqueville, CE 005 92182 Antony Cedex, France Phone: [phone]
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Perkinsbaan 11, 3439 ND Nieuwegein, Nederland Phone: [phone]
TEAC AUSTRALIA PTY., LTD.
A.C.N.005 408 462
106 Bay Street, Port Melbourne, Victoria 3207, Australia Phone: [phone]
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