ROLAND SBX 1000

Page 1

SBX-1000

SERVICE NOTES

F irst Edition

Oct, 1991

SEX'IL-JL-J

MIDI CUEING EDX

CONTENTS/ E 7k

GENERALVIEW ~l
SPECIFICATIONS - - 1
GENERAL DESCRIPTION 2
APPLICATION ~ 2
CIRCUIT DESCRIPTION IEIEEEIIHE ~ 2
SMPTE OUTLINES ' SMPTE¥IYJ " 3
PANEL LAYOUT Midi/E , 5
EXPLODED VIEW . 9H. . 7
PARTS LIST ~~~~~ 4 /\-J JU X F , 9
BLOCK DIAGRAM 4444444444 ~

7SEG BOARDASSEMBLY ~ ~ ~

7SEG BOARD CIRCUIT DIAGRAM 7SEG 7i - F IEIIPEIIZI- '11

PANEer Fl-i/3lilflam
PANEer»~ Ifl-z/BIEIES
PANELai- l~3/3|EIE-��I
PANELa» I-I/BIEI
PANEL/ii '1-2/3IIEIZ
PANEeri- F1 -3/3$E:--
PANEL-r-Fl-i/3 2/3 3/3215E§W

PANEL BOARD 1-1/3 CIRCUIT DIAGRAM .
PANEL BOARD 1-2/3 CIRCUIT DIAGRAM '
PANEL BOARD 1-3/3 CIRCUIT DIAGRAM 4
PANEL BOARD 1-1/3 ASSEMBLY
PANEL BOARD 1»Z/3 ASSEMBLY
PANEL BOARD 1»3/3 ASSEMBLY
PANEL BOARD 1-1/3, 2/3 AND 3/3 CHANGE INFORMATION
MAIN BOARD CIRCUIT DIAGRAM
VR BOARD CIRCUIT DIAGRAM ~
MAIN BOARD ASSEMBLY ~

VR BOARD ASSEMBLY ~~~~~ .15
MAIN BOARD CHANGE INFORMATION .15
PANEL BOARDZASSEMBLY .16

PANEL BOARD 2 CIRCUIT DIAGRAM .
POWER SUPPLY BOARD ASSEMBLY
JACK BOARD ASSEMBLY """"""""
POWER SUPPLY BOARD CIRCUIT DIAGRAM ~
JACK BOARD CIRCUIT DIAGRAM --------------

TEST MODE

CHECKER MODE ~20
ROM VERSION CONFIRMING MODE 20
IC DATATABLE ............................ 22

GENERAL VIEW/ER

17059607 Printed in Japan (AGEO) (CR) 1

@Roland

SPECIFICATIONS/(Hi

©Cue Sheet Section

Type offime Code 24, 25, 30 (OF), 30 INDF) [frame/sec]
Registerable Events MIDI, GPI

Data Entry

(The way ol events enterin ]

Step, Tap, MIDI-Controllers
Number of Revisions 15
(Revision is a 'take of the movie or the like .
Up to 16 revision can be made for one one sheet.)
Resolution
(Minimumframeforone event) ~~~~~~ 1/4 [frame]

©Tempo Controller Section
Tempo J = 5 ~ 500 (Oualer-note = 5 ~ 500 [beats/minutel)
Time 1/2~16/2, 1/4~16/4, 1/8~16/8, 1/16~ 16/16
[1 ~16 mes by Half-note, Gunter-note, 8th-note or 16th-note)
Number 0! Tempo Programs 32
Song Length ----------- 9993 [measures]

@Sequencer Section

Song Length ~~ 9993 [measures]
Pattern Length 999 [measures]
Number of patterns
('0, one track) .................... 999
Tracks
Phrase Track ...................
(Mixed signals of 1~16 MIDI chanels are containable in each tracks]
Tempo Track
Resolution ----- 96 clocks/quarter note
(Precision to locate a data event is 1/95th of a quarter note.)
Tempo
StandardTeInpo J : 10 ~ 250 (Qualennote = 10 ~ 250 [beats/minute
Tern J = 5 ~ 500 (Ouater-note = 5 N 500 [beats/minute
Time 1/2 ~ 32/2, 1/4 ~ 32/4, 1/3 ~ 32/3, 1/15 ~ 32/16
(I ~ times y a -note, Quarter-note, Bth-note or 16th-note)
Data Entry
(Thewayofdatareconlingl ~~~~~~ Real-time, Step

©MIDI IN/OUT Interface
Maximum Polyphony
Input ~ 64 [notes]
Output 128 [notes]
(Memory area for MIDI Note On" event are 64 for input and 128 for output.
If Note Off event of the same note do not come , memory area for MIDI
"Note on" event of the note is not open.)

©Disk Drive ~ 3.5Ainch micro floppy disk drive
(Automatic reading of ZDD/ZHD)
©Dispm .............................. 64 x 240 [dots] ,backm LCD,

GENERAL DESCRIPTION

The SEX-1000 is a MIDI cueing box which transmits
MIDI information and GPI pulses in synchronization with
a device which transmits SMPTE time code.

* "MIDI is the abbreviation for "Musical Instrument
Digital Interface", a worldwide standard for the
exchange of musical performance data and other
data among various electronic instruments . MIDI
conveys musical performance actions", such as the
playing of keys and the pressing of pedals, as MIDI

data .
* GPI" is the abbreviation for "General Purpose
Interface".

GPI command ia a trigger pulse signal which
controls such operations as "off", "play and stop"
of certain types of professional equipment.

* SMPTE" is the abbreviation for "Society of Motion
Picture and Television Engineers".
SMPTE time code is a standard adopted by the
SMPTE, and is commonly used for creating address
points in video tape and film for editing purposes.
Refer to "SMPTE OUTLINES" for details.

©INPUT/OUTPUT
MIDI Pom A/B
IN/OUT ------------------------- Specifications of Input and Output conform to the
MIDI speification.
SMPTE TIME POPE.
lN/OUT Specifications for waveform oftne time and control
code signal conform to the SMPTE standard.
Input Level
(desired level) -
Input Impedance ~
Output Level
Output Impedance .

- BOOmV ~ 3lepl
- 291d)

- 350mv (pp)

- (Q

GPI OUT
OutputType- Open-Collector Type
Output Sustainable
Voltage- 7 0.5 ~ 35V
Output Maximum
Current - ~ 75mA
PulseWidt ~ 95mS

PolarityofPulse - Can be determined by user.
Positive : Normal open (high impedance)
Output is shorted to ground by signal pulse.
Negative : Normal short (ground)
Output is openedfbecome high impedance) by signal pulse.
AUDIO THIS IN
Minimum Input Level ~~~~~~ 75mV (ppl
(Input waveform at square-wave, AUDIO IN LEVEL knob at 10]
Input level can be varied by AUDIO IN LEVEL knob.
Input lmpednnoe ~~~~~~~~~~ 33kg
METRONOME (OUT)
Maximum Output Level .. 1.5V (ppl
(METRONOME LEVEL knob at 10, Output waveform is square-wave with
frequency of 2.78m: and 3.25kHz.)
Output Level can be varied by METRONOME LEVEL knob.

Outputlmpedance 10k!)
©PowerRequirements ~~~~~~~~~~~~ AC 100/117/230/240V
©PowerConsumption 11W
©Weight ............................ 595.9 (12.2 lbs]

-------------- 17 ><12-1/2 >< 3713/16 "
430 X 316 X 97 mm

(WxDxH)

©Accessories (Standard)
System Disk ~~~~~~~ (2240022300) 1 pc
(3.5 inch 2HD. With event list sample)
5? DIN Cord ' (2348515500l 2 pcs
Owners M
English 2604071300]
Japanese 2604071200)
Owner's Manua Set Inc udes the following.
I. Owners Manual / WEBER,
II. Owner's Manual-Sequencer Section
/ 5/-r/*7~EK flail/5%
III. Glossary / HER:

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Page 2

S BX-I 000

The SEX-1000 is a device which makes possible to
combine MIDI Operations with a complete
synchronization system by using SMPTE time code. By
bringing electronic MIDI instruments into the world of
video and audio editing, Rolands MIDI CUEING BOX
SEX-1000 can greatly improve the quality and efficiency
of including sounds and sound effects with video.

The SEX-1000 consists of three sections, the "cue sheet
section", which executes the events (MIDI information
and GPI pulses) based on the timecode ; the "tempo
controller section, which controls external rhythm
machines, the start/stop functions, tempo and song
position of an external or the internal sequencer; and the
"sequencer section".

The start/stop functions of the tempo controller section
and the sequencer section can be controlled the cue
sheet.

APPLICATION

[In the Recording Studio]

- By using cue sheet function, program changes for
MIDI-compatible effect devices, which were
previously controlles manually or by MIDI
sequencer, can be controlled automatically based
on the time code.

0 With the built-in audio trigger, the following
application is possible.

A bass drum sound, already recorded on tape, can
be input and registered in the cue sheet as MIDI
information (Note On) with its timing.

By playing the sound of a sampler Or rhythm
machine with this MIDI data, recorded sounds can
be replaced.

0 You can also work solely with floppy disks which
already contain data, since the SBX-1000 has a
built-in sequencer that can directly load song data
of the MC series and the MV-30, or data in standard
MIDI file format.

[Audio Sweetening]

. When using a sampler or synthesizer to play back
sound effects, it is possible to enter the events and
have them sound according to the specified time
points in sync with the image.

° Since the SEX-1000 has a built-in GPI port, it is
possible to control transport functions, (such as
automatic start of a tape recorder Or CD player)
without using the event controller.

[In the Video Editing Suite]

' Since the SEX-1000 has a built-in GPI port, it can
automatically control the start of a tape recorder Or
CD player equipped with a GPI input connector; it
can also control the start/stop functions of a titler or
switcher.

. A sampler can be used to play back sound effects in
the editing room.

- The SEX-1000 can also be used to provide time
code for rough editing purposes since it has a
built-in time code generator (not synchronized with
image signals), and time code reader.

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CIRCUIT DESCRIPTION
CONSTRUCTION OF CIRCUIT

The SBX-1000 consists of two CPUs:

main CPU: N800196KB (IC15)

SMPTE CPU: HD6473308F (IC39);

four controllers:

for FDC: uPD720686F-3BQ (I018)

for SW/LED: T0238C060AF-501 (IC44)

SMPTE reader/generator: MBG70482 (I040)

for main CPU address expansion/DMA/serial
control: HGGZE33 (IC13);

and:

1M byte high-speed D-RAM: M381C4256-10 (lC25-32)
32k byte high-speed P-ROM for program
loader: HN27CZ56H685 (IC19);
and further:

analog circuits for trigger input (AUDIO TRIG IN) and
SMPTE time code input.

FUNCTION OF CIRCUIT

The main operations of the SEX-1000 are based on
interrupt processing.

The following processings are all performed by
interruption:

Data communication between the HD6473308F10
(SMPTE CPU/IC39) and each of the N800196KB (main
CPU/IC15) connected to MIDI PORT A IN/OUT and the
HG62E33 (main CPU address expansion/DMA/serial
control custom IC/IC13) connected to MIDI PORT B
lN/OUT, "data read from the TCZSSCOGOAF-SOI (switch
state reading standard cell/IC44), and access to and data
transfer to and from the uPD720686F-339 (floppy disk
control |C/IC18).

For the operation processings Of the components other
than those directly connected to the N80C196KB (main
CPU), any such operation that has occurred (e.g. switch is
pressed, MIDI signal is input) is input to the H662E33,
which then Outputs a request signal to the N80C196KB
(main CPU) according to interruption (causes an interrupt
address).

The N80C196KB (main CPU) carries out this interrupt
processing according to this request address, and after
the completion of that processing, returns to the original
processing. The above operation is then repeated.

CIRCUIT FOR AUDIO TRIG IN

An audio signal at the pin 2 (input) of |C11 (op-amp) is
sliced, amplified and applied to IC12 (timer), ICIZ
develops a one-shot pulse of 200mS width regardless of
the input pulse duration. Ifa pulse at pin 7 (output) OfIC11
(Op-amp) is longer than 200mS, IC12 outputs two
consecutive pulses.

It is, however, usualy very little that it pulse is longer than
200mS.

Oct, 1991

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