OTARI MX 5050 BQII Series User manual

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SYNCHRONIZER
INTERFACE
INFORMATION
FOR
MX AND MTR SERIES
MACHINES
EDITION 1
MAY 1985

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MX 5050 BQII & MK III SERIES
Conditions For Synchronizer Use
1. All transport tallies are low true.
2. Synchronizer must read tach pulses in fast wind as
machines won't read time code at high speeds without
circuit modifications. Also, tape lifters would need
to be defeated in all modes which is not suggested
by Otari.
3. Synchronizer must be able to control capstan speed.
by varying a DC voltage. This voltage is ± 13v on
machines with locator connectors and ± 3v on machines
without locator connectors.
4. Synchronizer must supply dry contacts for speed
bypass during non-synchronizer use to provide
calibrated speed. If cable is removed while in
EXT capstan control, the machine will not operate
at calibrated speed unless a dummy plug is installed.
Note:
On machines with locator connectors, the choice of
internal or external capstan control is located on
the control PCB. When switched to EXT., the pitch
control will not function even though the LED will
light when the pitch knob is pulled on.

[fJOSCJUJ
MX-5050 MK III SERIES TO BTX SHADOW
MACHINES WITH NO LOCATOR CONNECTOR INCLUDING BO-II
TRANSPORT CONTROL PCB
BTX SHADOW
TRANSPORT CONTROL CONNECTOR
+5VDC C127+ --------------+---t20 CONTROL 8UPPLY
TALLY 8UPPLY
~---+---41& 8TOP COMMON
ITl5'JS TAL LY IC28 PIN 12 ----------+-----+----131 STOP TALLY
.----It-----I 3 REC CO tot M0 N
F.FW"D TALLY IC 1 PIN7 ----------+---+--+----1 7 F .FWD TALLY
F.FWD SWITCH CONN MW PIN2 -----------+---+---+---417 F.FWD COMMAND
ftW TALLY IC1 PINe ----------+---+--+----132 REW TALLY
STOP SWITCH CONN MW PIN1 ----------+---+--+----140 STOP COMMAND
PLAY TALLY IC1 PIN2 ----------+---+--+----18 PLAY TALLY
REW SWITCH CONN MW PIN3 ----------f----t--_t-__t43 REW COMMAND
PLAY SWITCH CONN MW PIN4 ----------+- ....... ----1----i14 PLAY COMMAND
f"Wi),REV IC30 PIN6 ----------+-----+----127 DIR-
GROUND C127----------~---_t-__t" SY8TEM GROUND
TACH +
REC SWITCH CONN MW PIN6 ----------------~ REC COMMAND
TACH COLLECTOR 012 -----
• FROM VARI SPEED SWITCH -------
ORIGINALLY ON PIN .. OF CAPSTAN SERVO PCB
--------~~ TACH -
--------1~ BYPAS8 (N.C.)
~ BYPASS (N.O.)
L--[!] 8ERVO VOLT 1X
• CAPSTAN SERVO PCB PIN .. -------------------~ BYPA88 (COM)
NOTES:
1. TO IMPROVE CAPSTAN LOCK-UP PERFORMANCE.
JUMPER RS .. (1K) WITH A 100 OHM " .. WATT RE818TOR
ON THE MOTHER PCB OF THE 8HADOW MAINFRAME
.2. WITH NO SYNCHRONIZER CONNECTED, JUMPER THil8E POINT8
FOR NORMAL CAPSTAN 8PEED

~ {f]fi!iJmO .. MX-5050 MK III SERIES TO BTX SHADOW
MACHINES WITH 16 PIN LOCATOR CONNECTOR INCLUDING SQ-II
LOCATOR CONNECTOR
+6VDC ~ ____________ __
_STOP TALLY C!l-----------------
-F.FWD TALLY GJ~----
F .FWD SWITC H ~f-----------
-REW TALLY ~~------------ ___
S TO P SW ITC H ~t----------------
-PrAY TALLY ~~-----------------------
RE W SWITC H [!!)~-------------------
PLA Y SWITCH ~f------------
BTX SHADOW
TRANSPORT CONTROL CONNECTOR
-.-- .. - ---- - r---:: CONTROL SUPPL V
~ TALLY SUPPLY
r---+!-----§ STOP COMMON
-+I----+i--§] STOP TALLY
, -.--~---0
-7'-'-~~
r+~
!
REC COMMON
F.FWD TALLY
F.FWD COMMAND
REW TALLY
STOP COMMAND
--+--t-----it----t 6 PLA Y TALL Y
REW COMMAND
PLAY COMMAND
FWD/REV ~~-----------------4--------r---127 DIR-
GROUND ~~--------------------------
REC S WITC H ~I-----------------------
l-------- ----§ SYSTEM GROUND
~ TACH +
--------~~ REC COMMAND
TACH ~~-------------------------------~ TACH -
SERVO COM [Q~---------
---------@:!) BYPASS (N.C.)
~ BYPASS (N.O.)
~ SERVO VOLT 1X
EXT DC IN [!]I--------------------------~ BYPA SS (COM)
TRANSPORT CONTROL PCS
LOCATOR CONNECTOR
PIN NO.
IC 28 PIN 12 ------------------[!]
IC1 PIN7----------------------~~
IC 1 PI N6 --------------------[!]
IC1 PIN2-----------------------~
- REMOVE AND INSULATE THE EXISTING
WIRES TO THESE PINS
ADD NEW WIRES TO PINS I. 7. I. 8
AS SHOWN

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MX-5050 MK III SERIES TO BTX SHADOW
MACHINES HAVING 34 PIN LOCATOR CONNECTOR
LOCATOR CONNECTOR
BTX SHADOW
TRANSPORT CONTROL CONNECTOR
• + 6 V DC ~r____--------------
-1-··~ CONTROL SUPPL Y
I
~ TALLY SUPPLY
,-
15
I
31
Sl1)!P TALLY ~-------------------+------+--4
--0
~ TALL Y ~---------------
t t·-
~
+--
17
j
F. FWD SWITCH 1I]r-----------------+--
REW TALLY 2~------------------+-~r-----+-~
32
STOP SWITC H 1 t----------------+---+----+-~ 40
PLAY TALLY 31t--------------------+---+----+-~
6
I
REW S WI TC H 0r----------------
!
i
. t- .
t-t:
: 2
PLAY SWITCH ~r------------------------~-
~--t--B
FYVID/REV ~------------------+-------+-~ @]
GROUND ~------------------ •• -i
~
i
L-EJ
STOP COMMON
STOP
TALLY
REC COMMON
F.FWD TALLY
F.FWD COMMAND
REW TALLY
STOP COMMAND
PLAY TALLY
REW COMMAND
DIR+
PLAY
COMMAND
DIR-
SYSTEM GROUND
TACH +
REC SWITCH 0----------------------------------1~ REC COMMAND
T A C H I!:!]r____---- ---[!!) TACH -
SE RV 0 COM ~r-------------------------
------t~ BYPASS (N.C.)
r~ BYPASS (N.O.)
~ SERVO VOLT lX
EXT DC IN ~-----------------------~~ B YPA SS (COM)
• EARLY MACHINES WITH 34 PIN CONNECTORS 010 NOT HAVE +6VDC ON PIN 24
AOD A WIRE FROM PIN 24 TO CONTROL PCB CONNECTOR MK PIN 2

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MX 70 SERIES
Conditions For Synchronizer Use
1. All transport tallies are low true.
2. Speed switch on remote to EXT. position.
3. All connections for synchronizer are available on 37 pin 'D'
connector labeled, "PARALLEL I/O." See cable schematic.
Note:
For code reading during fast wind, installation of
ZA-57l wide band reproduce assy. is recommended.
Contact factory for details.

'6
[jJiifiJIIlO" MX-70 TO BTX SHADOW
BTX SHADOW EXTERNAL
PARALLEL
1/0 CONNECTOR
TRANSPORT CONTROL
+5V 33
20
CONTROL SUPPLY
4
TALLY SUPPLY
15
STOP COMMON
STOP TALLY
12
31
STOP TALLY
3
REC COMMON
" TALLY
13
7
FF TALLY
FF SWITCH
4
17
FF COMMAND
REW TALLY
14
32 REW TALLY
STOP SWITCH
3 0
STOP COMMAND
P'i:AY TALLY
11
6
PLAY TALLY
REW SWITCH
S 3
REW
COMMAND
DIR+
PLAY SWITCH
2 14 PLAY COMMAND
FWD/REV
18
27
DIR-
21 SYSTEM GND
TACH+
REC
SWITCH
28 RECORD COMMAND
TACH
17
26
TACH-
LIFTER [!] 37
LIFTER
SIG GND.
16
4S
PWR GND
SERVO COM
c=: BYPASS (N.O.I
33 SERVO 8800 HZ
EXT FREQ IN ~
~ BYPASS (COM)
'.

@fifiJIJJO
MTR 10 1/12 1 SERIES
Conditions For Synchronizer Use
1. All transport tallies are high true and can easily be
converted to low true if necessary.
A. To invert tallies on a machine where no remote or
auto locator is being used, replace IC 20 on transport
control PCB with an SN7406N.
B. To invert tallies on a machine where a remote or auto
locator is being used, installation of a ZA-53F tally
interface assy. is necessary.
2. Do not pull lifter defeat (cue) line down except i~ fast
wind modes to avoid attenuated audio. If synchronizer
must do this, contact factory for modifications to transport
control PCB.
3. RC time constant shown in cable schematic must be used
to prevent accidental enabling of back play mode.
4. Speed mode switch on machine to be set to EXT. for
synchronizer use. For normal calibrated speed, return
switch to FIX position.
5. If using at 30ips for synchronizer application, jumper
across C40 on capstan control PCB.
6. Verify value of R22 on capstan control PCB is 680JL.
If not, install it.
Note:
All connections for synchronizer use are available on
20 pin HONDA connector labeled, "EXT. SYNC."
See cable schematic.

l!JOliJl11D.
MTR-1 OIl 121 TO BTX SHADOW
BTX SHADOW
MTR-10/12
TRANSPORT CONTROL
EXT SYNC
CONNECTOR
CONNECTOR
PLAY
TALLY
[!]
\ I
l!:!I PLAY LAMP •
F.FWD
TALLY
0 ,
~ F.FWD LAMP.
REC COM
~
I
PLAY COMMAND
o PLAY SWITCH
F.FWD
COMMAND
~
0
F.FWD SWITCH
DIR(+)
0 0
FWD/Im'V
REC (N.O.) 1!3
[!]
REC SWITCH
STOP TALLY
~
f!!]
STOP LAMP.
REW TALLY
§]
~
REW LAMP.
LIFTER
§J
[!] LIFTER DEFEAT
STOP
COMMAND ~
[!] STOP SWITCH
REW
COMMAND
15
REWIND SWITCH
0.47 MFD
DIR(-)
27
CONTROL SUPPLY
2
+I5VDC
TALLY SUPPLY
STOP COM 161------ ....... -...:.....,....:......---+-- ........ --1
GROUND
BYPASS (N.O.) ~
SERVO 9800 HZ ~
TACH(+)
TACH(-) 281--------~,~1-----~~~11 TACH
','
,.,
SERVO COM 61--------~1~:-----~
BYPASS (COM) ~I---------.!....-~--------E:!) EXT SYNC FREQ
"- '
• TALLIES ARE HIGH TRUE FROM FACTORY
FOR LOW TRUE TALLIES. SEE ITEM 1 ON CONDITIONB SHEET

[fJf1f1Jf1]O
MTR 1011/1211 SERIES
Conditions For Synchronizer Use
1. All transport tallies are low true.
2. Do not pull lifter defeat (cue) line down except in
fast modes to avoid attenuated audio. If synchronizer
must do this, contact factory for modifications to the
transport control PCB.
3. RC time constant shown in cable schematic must be used
to prevent accidental back play mode.
4. Speed mode on machine to be set to EXT. for synchronizer
use. For normal calibrated speed, return switch to FIX
position.
5. If using at 30ips for synchronizer use, jumper C40 on
capstan control PCB.
6. Verify that R22 on capstan control PCB is 680JL. If
not, install it.
Note:
All connections for synchronizer use are available on
37 pin '0' connector, labeled "PARALLEL I/O." See
cable schematic.

[fJf1lJmo-
MTR-1 alii 1211 TO BTX SHADOW
BTX SHADOW
TRANSPORT CONTROL
CONNECTOR
MTR-l on/l 2n
PARAllEL 110
CONNECTOR
PLAY TALLY &- -------- -
------------~ P'L'AV LAMP
I •
F.FWD TALLY B-~-
I ! r,:;,
---------- I ...:...------------~ I!]!'Wl5 LAMP
1
I
REC. COM 3· : i
~
I ,
PLAY ,4.~--~I~-------~~----~~-~--~~PLAY SWITCH
F.FWD §---------- -----------i0 F.FWD SWITCH
DIR(-) ~-----------~-.- ~-- ---------iE!] ~/REV
I
I
REC (N.O.) ~ __ ~ ____ ~ __ ~~I~1 -----------~~REC SWITCH
STOP TALLY §}-- @] iTO'P LAMP
REW TALLY§-------- ~~ LAMP
LIFTER ~-- -----.-- ---,--,-- 0 LIFTER DEFEAT
I ,
STOP ~-- [2] STOP SWITCH
'0 KOHM8
RE~ND ~~-~-~~~~--~~-----------~~ REWIND SWITCH
DIR(+) 2 1-----. 0.47 MFD
CONTROL SUPPL Y 20~---+------+-----~--' --~....--------@) +5 V
TALLY SUPPLY 441-----1
STOP(COM)~-----
BYPASS (N.O.) ~
SERVO 9600 HZ ~
TACH (+) 1
I
, ,
-+----~'~'~--~~---~--~16 GROUND
SERVO COM 4S~----------------~~---~----~~
, .
I
• I
BYPASS (COM) ~------------------~~~I --------------------~~EXT SYNC FREQ

.~
[fJfifjJCJO
MTR-1 0/12 WIDE BAND
Modification of Audio Channel for Dedicated Wide Hand use.
1. Turn Off the Power to the MTR-10/12 and remove the audio
channel PCB from the channel to be used for Time Code, or
modify a spare PCB.
Modification for 1/411 - 2 Track Machines
2. Connect a 3 kOhm resistor across Rl.
3. Connect a 30 Ohm resistor across Rll.
Modification for 1/211 - 4 Track machines
2. Connect a 4.7 kOhm resistor across Rl.
3. Connect a 150 Ohm resistor across Rll.
Perform the steps below for all machines
4. On the upper (Comp) side of the PCB, cut the trace that
leads to Pin 16 of the edge connector. This defeats the
play-to-stop and fast wind muting.
5. On the lower (Dip) side of the PCB, cut the trace that leads
to Pin 21 of the edge connector. On the upper (comp) side
of the PCB, install a 100 kOhm 1/4 watt resistor from the
junction of R 59 and R 60 (close to VR9 in the center of the
PCB) to the solder feed-through located between the +20 and
-20 V test points located immediately below the resistors.
This defeats the audio attenuation in Stop, Cue Shuttle, and
Lifter Defeat modes.
NOTE: This modification provides good quality, non-phase-
compensated code output. If your synchronizer requires better
quality code than this modification provides, installation of a
WBR-I Wide Band Kit on one of your Audio PCBs may be required.
Please contact OTARI for further details.

lflfiDf1JO
MTR 901 SERIES
Conditions For Synchronizer Use
1. All transport tallies are low true
2. Speed mode on transport in EXT. position.
3. If synchronizer pulls cue line down in stop, center the
cue slider potentiometer to avoid tape crawl.
4.
9 pin EXT. CLOCK '0' connector is used for incoming
and outgoing 9600Hz (see cable schematic).
5. 50 pin AUTO LOCATOR 'D' connector contains tach, direction
and transport command lines (see cable schematic).
6. Tallies are available from lamp power resistors located
on transport control mother board #2 which is located
inside left of lower rear panel. Use clipleads or EZ
hooks (see tally drawing).
Note:
Since tally lines are derived from low side of button
lamps, it is suggested to individually add lOOK pull up
resistors from the +20V line (pin 33) to tally lines to
prevent loss of tally information in the event of a
lamp burning out.
!
! .
I

·,
@i1!iJfJJ U
MTR-90 I TO BTX SHADOW
BT X SH ADOW
TRAN SPO RT C ONTR OL
CONNE C TOR
PL AY TALLY ~ --
AUTO LOCATOR
CONNECTOR
-- ------ ~ ~ PLAY/STOP
F. F we T A LL Y 0 -------~ -'--+ ------- --..j 0 nwo TAll Y
PLA Y (N.C .)
PLAY SWITCH
REC (COM)
F.F WO (N . O.) [!!] 1- ------- --:'----:------ --- --1 ~ F. FWD SWITCH
0IR( - ) ~1- ------ -~~~------ - --1 ~ FWD/REV
RE C (N .0 .) ~ -------- -'----'----- --- - -I ~ A EC SWITCH
S TOP TALL Y @j -- - - -- - --+-+ - ---- -- _I0§1'01.iTAlLY
REW TALLY ~ ------ - --+-+----- -- --..j ~ ~ TALLY
LIFTERS (N.OJ ~ - -- - ----- - -+---:---- --- - --..j~ CUE SWITCH
STOP (N.C .) ~ ---------c---'-------- - --..j E21 STOP SWITCH
REW (N.D.) @ ------ -- c- +---- --- _I~ REW SWITCH
S TOP (CO M) ~ ---------'----'------ -- --I [!J - 20VDC
OIR <+) 2 I- ------ ~
TAL LY 5UP PLY "41- ------ --< I- -- ----"---'---------- -- ---- ----jHI ... 5 V0 C
C ONTA 0 L S UPPL Y 20 1- --- + --- -'-< ~ --- ---- ___1 2 GRO UNO
TACH (+1
I- --------I- - - -----'- -+--------- -------- --j~ + 6 V0 C
TACH (-) ~ -------- - f --------'---7------- ------- --1~ T A C H (A 1/1 0)
BY PASS (N.D.>
S ERVO FRED OUT
ED----t
~
2 20 OHM 1/4W
B YPA 5 S (N.Col 36 1- ---- -- ---'--'-- --- - --- -___1
9600 HZ
, ,
BY PAS S (C 0 M) 315 f-- - - ------f-- --;.---\- --- - --1 3 EXT CLOCK
SERV0 F REa 0 A au N0 4 5 f-- ---- --------- --' ---+ ~ ------------ --j 5 GROUND
• TALLIES ARE NOT PRESENT ON THE CONNECTOR
USE CLIP LEAD S TO LAMP RESISTORS ON
TRANSPORT CONTROL MOTHER PCB

i~
lilfi!iJli1H ~
MTR-90 I TALLIES
-~-I
@)
(@ (@
(@
CN1 CN2 CN3
CN10
n n
r--l
I !
I
USE EZ HOOKS OR CLIPLEADS
-~- -+- F.FWD TALLY
TALLIES ARE LOW TRUE WITH +15V PULL UP
REW
TALLY
--.
I--PLAY TALLY.
STOP TALLY
REC TALLY •
•
NOT USED WITH BTX SHADOW
--
GREEN POWER RESISTORS
I I
I
I L
I
I
U
@) @)
@) @)
TRANSPORT CONTROL MOTHER PCB"
LOCATED INSIDE LEFT SIDE OF LOWER REAR PANEL

@fjBlllO MTR-90 I WIDE BAND
Modification of Audio Channel for Dedicated Wide Band use.
1. rrurn Off the Power to the MTR-90 I and remove the audio
channel PCB from the channel to be used for Time Code, or
modify a spare PCB.
2. Install a 10K ohm resistor across R 101.
3. Install a 10K ohm resistor across R 176.
4. Cut the trace leading to pins 28 A & B of the edge
connector (This defeats the Stop-to-Play Mute for this
channel) •
5. Cut the trace between the edge connector finger for
pin 14 A & B and the adjacent feedthrough. Connect a 10 kOhm
resistor from this feed through to pin 32 A & B. (This
connection defeats the Fast-Wind mute for this channel).
NOTE: This modification provides good quality, non-phase-
compensated code output. If your synchronizer requires better
quality code than this modification provides, installation of a
WBR-l Wide Band Kit on one of your Audio PCBs may be required.
Please contact OTARI for further details.

[f]fi!iJ[JJD
MTR 90 II SERIES
Conditions For Synchronizer Use
1. All transport tallies are low true.
2. Speed mode switch on remote in EXT. position.
3. All connections for synchronizer use are available
on 25 pin Honda connector labeled, "EXT CLOCK. II See
cable schematic.

{j]OMma
MTR-90 II TO BTX SHADOW
STX SHADOW
TRANSPORT CONTROL
CONNECTOR
-
PLAY TALLY
&
F.FWD TALLY 7
REC COM
3
PLAY
14
F.FWD
17
DIR (-)
27
REC N.O.
28
STOP TALLY
31
REW TALLY
32
LIFTER
37
STOP
40
REWIND
43
DIR (+)
2
CONTROL SUPPLY
20
TALLY SUPPLY
44
STOP COM
15
BYPASS N.O.
1 1
SERVO 9600 HZ
33
TACH (+)
1
TACH (-)
26
SERVO COM
45
BYPASS COM
35
BYPASS N.C.
36
1..0-
~-----.--.
MTR-9011
EXT. CLOCK CONNECTOR
iitAY TALLY
" -
. 2
.-
F.FWD TALLY
1 1
PLAY CMD
13 F.FWD CMD
21 fWl)/REV
10
REC CMD
3
~ TALLY
; 5
REW TALLY
I
I 6
,
LIFTER DEFEAT
I
I
12
STOP CMD
14
REW CMD
20
+5 VDC
17 GROUND
\,
~
~"\
I I
, I
,
, I
15
TACH OUT
Y
~
, I
, I
. I
18
~
16
\J
EXT CLOCK
9600 HZ OUT
'--

[j]fj{j[j]O
MTR-90 II WIDE BAND
Modification of an Audio Channel for Dedicated Wide Band Use
1. Turn Off the Power to the MTR-90 II and remove the audio
channel PCB from the channel to be used for Time Code, or
modify a spare PCB.
2. Install a 10K ohm resistor across R 101.
3. Install a 10K ohm resistor across R 125.
4. Connect a wire from Pin 6 of IC 510 to Pin 14 of IC 51~. (This
connection defeats the Stop-to-Play Mute for this channel).
5. Connect a wire from the cathode (banded end) of 0 535 to IC
103 Pin 8. (This connection defeats the Fast-Wind mute for
this channel).
NOTE: This modification provides good quality, non-phase-
compensated code output. If your synchronizer requires better
quality code than this modification provides, installation of a
WBR-l
Wide Band Kit on one of your Audio PCBs may be required.
Please contact OTARI for further details.

[j]ii!i.Jf1JO
MTR 20 SERIES
Conditions For Synchronizer Use
1. All transport tallies are low true.
2 . Speed switch on machine to EXT. 1 or EXT. 2
(depending on options) .
3. All connections for synchronizer use are available on
37 pin 'D' connector labeled, "PARALLEL I/O." See
cable schematic.