Jands Event 4 Technical Manual
Event 4 Technical Manual
Revision 1 19/07/99
Contents ii
Revision 1 - 07 July
1999 Event 4 TECHNICAL MANUAL
EMC COMPLIANCE
This product is approved for use in Europe and Australia/New Zealand and conforms to the following standards: AS/NZS 4251.1
(EN 55103-1), AS/NZS 4252.1 (EN 55103-2), AS/NZS 3260 (EN 60950).
To ensure continued compliance with EMC Directive 89/336 and the Australian Radio communications Act 1992, use only high
quality data cables with continuous shield, and connectors with conductive back shells. Examples of such cables are:
DMX, MIDI, Keyboard cables: Belden 8102 100% Aluminium foil screen, 65% Copper braid.
Video: Amtron FR2651 Flat round cable, woven shield.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses an d can radiate radi o frequency energy and, if not p roperly installed and used in accord ance with
the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equi pment off and on, the user is enco uraged to try to correct the int erference by one or more of the
following measures:
- reorient or relocate the receiving antenna;
- increase the separation b et ween t he equipment and receiver;
- connect the equipment into an outlet on a different circuit from that to which the receiver is connected;
- consult the dealer o r an experienced radio/tel evi sion technician for hel p.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
JANDS ELECTRONICS PTY LTD 1999
All rights reserved
DISCLAIMER
Information contained in this manual is subject to change without notice and does not represent a commitment on
the part of the vendor. JANDS ELECTRONICS P/L shall not be liable for any loss or da mage whatsoever arising
from the use of information or any error contained in this manual.
It is recommended that all service and repairs on this product be carried out by JANDS ELECTRONICS P/L or it’s
authorised service agents. JANDS ELECTRONICS P/L cannot accept any liability whatsoever for any loss or
damage caused by service, maintenance or repair by unauthorised personnel, or by use other than that intended by
the manufacturer. JANDS lighting consoles must only be used for the purpose they were intended by the
manufacturer and in conj unction with the operating manual.
Manufactured in Australia by JANDS Electronics Pty Ltd (ACN 001 187 837)
40 Kent Rd (Locked Bag 15)
MASCOT NSW 2020
Sydney Australia
PHONE:+61-2-9582-0909 FAX:+61-2-9582-0999 INTERNET:http://www.jands.com.au
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Table of Contents
Table of Contents .......................................................................iii
1. Introduction.............................................................................1-1
2. Equipment Description ..........................................................2-1
2.1 Tools...........................................................................................................................2-1
2.2 Disassembly...............................................................................................................2-1
2.3 Reassembly ................................................................................................................ 2-2
2.4 Precautions and Installation Notes.............................................................................2-2
3. Circuit Notes...........................................................................3-1
3.1 Processor Card ...........................................................................................................3-1
3.1.1 Boot ROM, FLASH, and RAM..................................................................3-1
3.1.2 Trim procedure............................................................................................ 3-1
3.1.3 Battery.........................................................................................................3-2
3.1.4 Logic ........................................................................................................... 3-2
3.1.5 Desk Lamp Dimmer....................................................................................3-2
3.1.6 DMX Outputs..............................................................................................3-2
3.1.7 Keyboard.....................................................................................................3-2
3.1.8 Expansion Bus.............................................................................................3-3
3.2 Front Panel Cards.......................................................................................................3-3
3.2.1 Card Select Jumpers....................................................................................3-3
3.2.2 LCDs...........................................................................................................3-3
4. DIP Switch Settings................................................................4-1
5. Boot ROM inbuilt menu, self tests, setups, etc....................5-1
5.1 Entering the Boot Menu.............................................................................................5-1
5.2 Menu Usage ...............................................................................................................5-1
5.3 Boot Menu..................................................................................................................5-1
5.3.1 Continue...................................................................................................... 5-1
5.3.2 Reload Software..........................................................................................5-1
5.3.3 Test..............................................................................................................5-2
CPU......................................................................................................................5-2
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Bus .......................................................................................................................5-2
RAM.....................................................................................................................5-4
FLASH................................................................................................................. 5-4
VGA..................................................................................................................... 5-4
Ports .....................................................................................................................5-4
VGA..................................................................................................................... 5-4
DMX 1 ................................................................................................................. 5-4
DMX 2 ................................................................................................................. 5-4
MIDI.....................................................................................................................5-5
Cards .................................................................................................................... 5-5
Scan......................................................................................................................5-5
Activate................................................................................................................5-5
Misc......................................................................................................................5-6
DMX In................................................................................................................ 5-6
Vers......................................................................................................................5-6
Trash RAM ..........................................................................................................5-6
Boot......................................................................................................................5-6
6. Fault Finding Table .................................................................6-1
7. Maintenance............................................................................7-1
8. Technical Data and Specifications........................................8-1
Event 4 Specifications 8-1
9. Glossary of Terms...............................................................9-1
Appendix A: History of Modifications .......................................9-1
Appendix B: Connector Pinouts................................................9-1
Appendix C: Spare Parts............................................................9-1
Appendix D: DMX to MIDI adaptor.............................................9-1
Appendix E: 2 x DMX, MIDI signal combiner............................9-1
Appendix F: Circuit diagrams....................................................9-1
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EV4CPU1 Circuit diagrams........................................................9-2
EV4MAST3 Circuit diagrams......................................................9-3
EV4ASN3 Circuit diagrams........................................................9-4
EV4PRE3 Circuit diagrams........................................................9-5
EV4PAL3 Circuit diagrams.........................................................9-6
BKLTSML0 Circuit diagrams .....................................................9-7
Introduction
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1 - 1
1. Introduction
The Event 4 lighting control console is designed for stage, theatre, corporate, and live
music applications. It has been designed to control all equipment with a DMX-512
input. New fixture types can be added by modifying the fixture library disk if they are
not available on the existing release library.
The console has been designed with the capability for users to upgrade the software
without removing the base. This is achieved by inserting a diskette with the new
operating system, and selecting the appropriate options in the “boot menu”. The boot
menu also provides other functions, including console self tests.
Note that static sensitive devices are used throughout the console, and normal handling
precautions should be applied during service. Note also that connections should never
be made with the power switched on.
Metric fasteners are used almost exclusively throughout the console.
The Event 4 Operating Manual should be consulted for a description of desk
operation.
Jands recommends that all service procedures be performed by a Factory Authorised
Service Centre or the Jands Electronics Service Department.
Circuit Notes 3 - 1
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2. Equipment Description
The Event 4 is constructed using a folded steel chassis, covered with a reverse
screened lexan. The decorative wooden ends are made from plantation growth native
Australian timber mounted on an aluminium former, which provides structural
rigidity. The timber also protects the fascia of the floppy disk drive. An additional pair
of front to back struts reduce flex and ensure front to back spacing is consistent with
the base.
A separate assembly is used to hold the power supply (PSU) and central processor
(CPU) cards. This bracket is removable as a complete pre-wired unit. A backpanel
vent next to the CPU card is removable from the inside and can be used to fit options.
2.1 Tools
With the exception of the base screws and D connector mounting nuts, metric
hardware is used throughout the console. The following tools are recommended:
• 7mm nut driver
• 5mm nut driver
• #1 Posidrive screwdriver
• #2 Posidrive screwdriver
2.2 Disassembly
Access to the console is through the base. To remove the base place the console face
down onto soft padding. Using the #2 posidrive screwdriver remove all (and only) the
silver screws, leaving the four black screws. The base can then be lifted away.
To remove the PSU/CPU assembly, disconnect all cables to the CPU and PSU, and
use the 7mm nut driver to undo:
• three nuts next to the power inlet socket,
• two nuts between the PSU and CPU,
• three nuts between the CPU card and the vent/option panel
Use the posidrive screwdriver to undo:
• two screws that hold the CPU tray to the chassis.
The assembly can then be removed by sliding it toward the front until it is clear of the
studs, then lifting it out of the chassis.
Note that the CPU card can be removed from the console without removing the
complete assembly. To remove the CPU card from the assembly:
• Remove all connections to the card
• Undo the D connector nuts
• Undo the nine PCB mounting screws
• Slide the CPU card away from the back panel until the D connectors are clear of
the assembly, and lift the CPU away.
Circuit Notes 3 - 1
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The remaining PCBs may be removed by undoing the relevant screws, however
attention should be made to the following points:
• Faders should be pushed to their mid position before their knob is removed.
Failure to do so may result in damaged faders.
• The position of the address jumpers on the Palette and Assign cards should be
noted when they are removed so they can be correctly set during reassembly
2.3 Reassembly
Attention should be paid to the following during reassembly:
• LCDs and their windows should be wiped clean with a lint-free cloth before
assembly.
• Ensure the address jumper on Palette and Assign cards are set correctly. Note all
cards should only ever have one (1) address jumper installed. Refer to section 3.2.1
for further information on the card select jumper settings.
• When fitting the CPU ensure all connectors are properly installed, including the
DMX output connector. Also check that the DMX connector wiring is located
within the cutout section of the CPU card.
• The CPU trim procedure should be followed if either the CPU or power supply
have been changed, or if the trim has been inadvertently adjusted. Refer to section
3.1.2.
• Test the console fully before installing the base. This includes the disk drive, desk
lamps, back lights, and DMX outputs.
• Double check all flatcable latch connectors are closed before the base is installed.
• Do not overtighten the base screws.
2.4 Precautions and Installation Notes
The Event 4 should be installed in a position which allows sufficient ventilation
around the back panel vents – there should be at least 100mm clear space around the
back panel.
The Event 4 has been manufactured to comply with all CE/C-Tick regulations, and
uses plated panels to ensure minimal radiation emanates from the chassis. In order to
maintain compliance all panels and covers should attached using all screws. All
connections should be made using the recommended cable type. All back shells should
be connected to the cable shield.
Circuit Notes 3 - 1
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3. Circuit Notes
The Event 4 uses a main CPU to provide all processing functions. The CPU
communicates with the front panel PCBs via the front panel card bus.
3.1 Processor Card
The major functional blocks are as follows:
Function IC Number
Core CPU IC1-8, IC33, IC30, OSC1
Boot EPROM IC25
FLASH ROM IC11-14
RAM Bank 1 IC16-19
Floppy Disk Drive Controller IC48
DMX output IC53, IC38, IC39, IC50, IC51
MIDI IC48, IC35, IC52
VGA output IC6, IC57-60, IC66
Reset/power fail/RAM power IC15
Real time clock IC31
Front Panel Card bus IC9, IC10
Expansion bus IC24, IC26-29
3.1.1 Boot ROM, FLASH, and RAM
The CPU memory consists of a Boot EPROM (IC25), four FLASH ROMs (IC11,
IC12, IC13, IC14), and four static RAMs (IC16-19).
The CPU card has the capacity to be fitted with a maximum of 2MBytes program
memory (four x 29F040 devices) and 2MBytes show memory (four x 512Kbyte
devices).
Only AMD brand 29F040 FLASH devices should be used with boot software versions
up to 0.5.
3.1.2 Trim procedure
The adjustment trim on the CPU card adjusts the point where the CPU is informed that
power is failing. If a console is dropping its memory, trimpot T1 may be out of
adjustment and should be adjusted as follows:
1. Save any necessary console information to diskette
2. Turn T1 fully anticlockwise
3. Place a shunt across J1
4. Switch console on and wait until it has completely started up
5. Slowly adjust T1 until LED L3 lights
Circuit Notes 3 - 1
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6. Switch off console.
7. Remove shunt across J1
This procedure should be performed whenever either a new CPU or PSU is installed.
3.1.3 Battery
The lithium battery should last approximately 5 years from the date the battery was
made - note that a 4 year life from date of product sale would not be unex pected when
delivery and manufacturing times are allowed for. The battery should be considered
flat if its terminal voltage measures below 2.9 volts. Backup any required show data to
diskette before the battery is replaced.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the battery manufacturer. Dispose of
used batteries according to the battery manufacturer’s
instructions.
3.1.4 Logic
The logic requirements for the board are contained in two logic devices, IC33 and
IC53. These are in circuit programmable, and are programmed by connecting an
appropriate header to CONN3. If it is necessary to reprogram these devices in the
field, follow the instructions supplied with the kit.
3.1.5 Desk Lamp Dimmer
The desk lamp dimmer circuit consists of a PWM switching circuit protected by a
PTC polyswitch. The polyswitch will trip under overload conditions – when it does
LED L6 will extinguish. Due to the nature of the polyswitch it is necessary to either
disconnect all desk lamps or switch the console off for approximately one minute in
order for it to reset.
3.1.6 DMX Outputs
The DMX outputs are not opto-isolated, however a protection network decouples the
driver ICs from high voltages which may be applied during external mains faults.
After a fault has been removed these devices take approximately one minute to reset,
and during this time the output cables should be disconnected or the console switched
off.
3.1.7 Keyboard
The console is protected against excessive load current through the keyboard
connector by a polyswitch. After a fault has been removed this device takes
approximately one minute to reset, and during this time the keyboard should be
disconnected or the console switched off.
Circuit Notes 3 - 1
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3.1.8 Expansion Bus
The expansion bus is provided to allow for options to be added in the future. The
expansion bus is a buffered extension of the system CPU bus. It is not compatible
with Jandshog, Event, or ESP2 type expansion bus option panels, and they should not
ever be installed.
3.2 Front Panel Cards
All front panel cards follow a design similar to that of other Jands consoles. A
multiplexed 8 bit data/address bus is used to exchange bytes of information between
the CPU and the front panel cards. The pin connections however are not compatible
and under no circumstances should Event, ESP2, and Jandshog type front panel circuit
boards ever be connected to an Event 4 CPU card. Damage will result.
3.2.1 Card Select Jumpers
A jumper on each Preset and Assign card selects the address of the card in the system.
When installing new cards ensure that the replacement card has its jumper in the same
position as the card it is replacing.
The correct jumper position for a Preset or Assign card is equal to its position from the
left eg. the left most Preset and Assign cards have their jumpers set to 0, the next have
it set to 1, etc. Master and Palette cards have no address jumper.
3.2.2 LCDs
The character LCD modules use a single backlight driver circuit to deliver the high
voltage required for all of the electroluminescent (EL) backlights. This is the function
of the EL driver board, mounted near the power supply. This board receives its power
and an analogue control from the CPU card.
Note that intensity of the character LCD backlights reduces with age. This is normal
and to minimise the reduction the backlights are deactivated if the console hasn’t been
used for a preset time. The backlights are immediately reactivated when any front
panel button is pressed.
DIP Switch Settings 3 - 1
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4. DIP Switch Settings
NOTE: At the time of printing all DIP sw itches should be off for n ormal console
operation.
Dip SW1 - no function
Dip SW2 - no function
Dip SW3 - no function
Dip SW4 - no function
Dip SW5 - no function
Dip SW6 - Enable main code diagnostics
Dip SW7 - Execute software from RAM – use for development only
Dip SW8 - Reserved
Boot ROM inbuilt Menu, sel f tests, setups , etc 5 - 1
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5. Boot ROM inbuilt menu, self tests,
setups, etc
The Boot ROM contains software that can be used to test, setup, and configure the
console. Note that the software is subject to change depending on the boot software
version.
5.1 Entering the Boot Menu
The boot menu is accessed by holding down the “RECORD” button on the keypad
while turning power on. Release the Record button when the opening menu is
displayed in the programmer LCD.
5.2 Menu Usage
Each menu offers a number of options available. The options are selected by pressing
one of the five buttons above the programmer LCD, or press EXIT to return to the
previous menu.
5.3 Boot Menu
The following menu options are available in the opening menu
1. Continue
2. Load FLASH
3. Test
5.3.1 Continue
Use this option to exit the boot menu and continue normal execution into the main
operating software. Use this option if the boot menu has been entered by mistake.
5.3.2 Reload Software
Selecting the Load FLASH option initiates the software reload sequence from diskette.
Ensure you have an Event 4 software diskette with the file “EVENT4.BIN in the drive
and follow the instructions on the LCD. Note that this facility should be used with
caution and it is not recommended that software be reloaded at a critical time, eg. just
before the start of a show.
Boot ROM inbuilt Menu, sel f tests, setups , etc 5 - 2
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5.3.3 Test
The following menu options are available in the Test menu:
1. CPU
2. Ports
3. Cards
4. Misc
5. Boot
Tests may be run continuously or once as required.
CPU
Use this option to test parts of the CPU card. When selected the following options are
displayed:
1. Bus
2. RAM
3. FLASH
4. VGA
Bus
The Bus exercise is not a test as such, but is used to debug CPU cards that have
fundamental faults, such as factory testing of newly manufactured CPU cards.
The CPU has been programmed to output sequences of events that can be seen on a
CRO, synchronised to the edge of L5 and L4. The data can be used to verify the
correct operation of the CPU control signals.
The sequence of operations performed during this routine are shown in table 3.
Event Signals of
interest
Comment
Set Green LED L5 on L5 CRO Synchronisation
Set Green LED L5 off L5 CRO Synchronisation
Move 01 to 40010004 IC16 pin 29 Write to RAM bank 0 byte 0
Move 02 to 40010005 IC17 pin 29 Write to RAM bank 0 byte 1
Move 04 to 40010006 IC18 pin 29 Write to RAM bank 0 byte 2
Move 08 to 40010007 IC19 pin 29 Write to RAM bank 0 byte 3
Move 40010004 to
CPU
IC16-19 pin 24 Read from RAM bank 0
Set Red LED L4 on L4 CRO Synchronisation
Set Red LED L4 off L4 CRO Synchronisation
Move 10 to 20000000 IC13 pin 29 Write to FLASH byte 0
Move 20 to 20000001 IC14 pin 29 Write to FLASH byte 1
Move 40 to 20000002 IC12 pin 29 Write to FLASH byte 2
Boot ROM inbuilt Menu, sel f tests, setups , etc 5 - 3
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Move 80 to 20000003 IC11 pin 29 Write to FLASH byte 3
Move 20000004 to
CPU
IC11-14 pin 24 Read from FLASH
Move AA to 606A0000 IC65 pin 13 PC Memory Write
Move 606A0000 to
CPU
IC65 pin 14 PC Memory Read
Move 55 to 60000000 IC65 pin 50 PC IO Write
Move 60000000 to
CPU
IC65 pin 49 PC IO Read
Table 3: Bus exercise event summary
Figure 1 shows the relationship between L5, IC16 WR, and the CPU DACK signals as
measured while running this test.
Figure 1: Sample waveform during Bus Exercise
Trace #1: L5
Trace #2: IC16 Pin 29 (WR)
Trace #3: IC1 pin 44 (DACK1)
Trace #4: IC1 pin 43 (DACK0)
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