Zytronic ZXY200 Use and care manual

ZYTRONIC
PROJECTED CAPACITIVE ZXY200/300®
MULTI TOUCH CONTROLLER & SENSOR
INTEGRATION MANUAL – ISSUE 1
Leaders in Touch Technology

Integration Manual - Issue 1 Zytronic Projected Capacitive ZXY200/300®Multi Touch Controller & Sensor 2
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CHAPTER
Introduction
Integrating the Sensor
Integrating the Controller PCB
Routing the Sensor Flexible Cables
Power and Data Connections
Using a Bezel
Integration Checks
Controller PCB Drawings
Further Information
TITLE
5
7 - 9
11 - 13
15 - 19
21 - 25
27
29
31 - 32
34
PAGES
ZYTRONIC PROJECTED CAPACITIVE ZXY200/300®
MULTI TOUCH CONTROLLER & SENSOR
INTEGRATION MANUAL – ISSUE 1

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USER MANUAL ISSUE RECORD
ISSUE NUMBER
Issue 1
RELEASE DATE
17th May 2013
COMMENTS
First Release
EXPLANATION OF SYMBOLS USED WITHIN
THIS MANUAL
Warning Hazardous Voltage.
Caution - item is susceptible to electrostatic discharge (ESD) damage
if proper precautions are not taken.

INTRODUCTION 1

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INTRODUCTION
SHIPPING DAMAGE
On receipt of your Zytronic Projected Capacitive ZXY200/300®Multi Touch Controller Touchscreen
Product, if you notice damage to the shipping carton, or concealed damage, be sure to save all packing
materials for later inspection by the carrier, who is responsible for any shipping damage.
WARRANTY
If failure occurs during the warranty period of the product, please contact the point of sale from which
the product was purchased.
CARE AND CLEANING
Handle the touchscreen with care prior to and during installation. Do not pull or stress the cables/
flexible cables and ensure no damage is caused to the touchscreen prior to installation. Clean the
touchscreen surfaces with a glass cleaning solution and soft lint-free cloth. Ensure that the surfaces are
clean and dry before integration of the touchscreen.
Industry standard Anti-static procedures for electronic equipment must be followed when handling the
touchscreen sensor and controller PCB during all stages of unpacking and installation of the product to
prevent damage to the product due to high levels of ESD.
UNPACKING YOUR TOUCHSCREEN
Ensure that the following items are present and in good condition:
Zytronic Projected Capacitive ZXY200/300®Multi Touch Controller(s) and touchscreen sensor(s).
Users can download the latest Zytronic Projected Capacitive ZXY200/300®Multi Touch Controller
Touchscreen Configuration Software and User Manual directly from the Zytronic website.
www.zytronic.co.uk/support
BEFORE YOU BEGIN
Before proceeding with the touchscreen installation ensure the following:
9Your Windows operating system is correctly installed and operating with your mouse.
9Ensure that all other touchscreen manufactures Driver Software/old touchscreen Driver software is
uninstalled from the host computer to avoid software conflicts.
9Ensure that there is a free USB port available on the host computer to connect the desired Zytronic
Projected Capacitive ZXY200/300®Multi Touch Controller Touchscreen.
9Ensure that Industry standard Anti-static procedures for electronic equipment are followed during
unpacking and installation of the product.

INTEGRATING THE SENSOR 2

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INTEGRATING THE SENSOR
To integrate the sensor, you will require a suitably sized LCD with a display area matching the
active area of the sensor, as shown in Figure 1 (the active area of the sensor can be found on the
corresponding Zytronic sensor drawing).
SUITABLE LCD TO MOUNT THE SENSOR TO
Foam gasket should be used around the perimeter of the LCD to provide an air gap between the LCD
face and the rear of the sensor, as shown in Figure 2. This air gap is necessary to prevent excessive
electrical noise from the LCD causing interference to the sensor. Guidelines for the required thickness
of the gasket can be seen in the table below and are sufficient for most LCDs. Some LCDs with very
high levels of noise may require greater spacing which would need to be determined by testing.
SENSOR SIZE
5 - 22”
22 - 32”
32 - 46”
GASKET THICKNESS
3mm
4mm
6mm
FIGURE 1

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FOAM GASKET APPLIED TO LCD TO PROVIDE AIR GAP BETWEEN LCD AND SENSOR
If the sensor is only to be fitted to the LCD temporarily and kept horizontal, a single sided, electrically
non-conductive, low performance gasket can be used, such as EPDM (Ethylene Propylene Diene
Monomer) foam sealing strip, as shown in Figure 3. For permanent applications, or where the weight
of the sensor is to be held only by the gasket, a higher performance gasket such as 3M VHB tape can
be used. This will normally require the gasket to be built up to the correct thickness with several layers.
Different VHB tapes are available depending on the material of the surfaces it is adhering to. Any
gasket used must be non-sulphurous and maintain its adhesion at any temperature that it may be
subjected to in service.
GASKET APPLIED TO THE LCD PERIMETER
The sensor should be positioned on the LCD with the sensor active area (as defined on the Zytronic
product drawing) matched to the LCD display area. The glass face (with ‘Viewing Face’ label) should
be visible, as shown in Figure 4. The sensor can be positioned as shown or rotated by 180 degrees (so
that the flexible cables are on the bottom and right edges). The position should be chosen which gives
the best clearance for mounting the controller PCB on the rear on the LCD. If required, the sensor can
be cleaned on the front (glass) face and rear (polyester) face with a glass cleaning solution and a soft
lint-free cloth.
FIGURE 2
FIGURE 3
FOAM GASKET

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SENSOR MOUNTED ONTO LCD WITH GASKETFIGURE 4
VIEWING FACE LABEL

3
INTEGRATING THE
CONTROLLER PCB

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INTEGRATING THE CONTROLLER PCB
The components on the rear of the LCD should be arranged to allow a suitable space for the controller
PCB, as shown in Figure 5.
REAR OF LCD READY FOR CONTROLLER MOUNTING
The controller PCB should be positioned so that all three flexible cables from the sensor can
comfortably reach their respective ZIF sockets without crossing over other cables or PCBs. There should
also be sufficient space around the power and USB sockets to attach the cables. Ideally avoid placing
the controller within ~30mm of other PCBs and cables, as shown in Figure 6.
CONTROLLER POSITION ON REAR OF LCD
The Flexible cables plug into the ZIF sockets as shown in Figure 7. When viewing from the rear of the
LCD with the sensor orientated as shown in Figure 6, the flexible cable attached to the left of the
long edge of the sensor should connect to Transmit 1, and the flexible cable attached to the right of
the long edge of the sensor should connect to Transmit 2. The single flexible cable attached to the
short edge of the sensor should connect to Receive 1. No connection should be made to Receive 2 for
standard sensor designs.
FIGURE 5
FIGURE 6

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CONTROLLER PCB
The controller should ideally be mounted to four metal standoffs pre-fitted to the metal chassis so that
there is a good low impedance ground connection between the controller PCB and LCD metal chassis,
as shown in Figure 8. The controller PCB should be spaced at least 5mm away from the metal chassis.
CONTROLLER SPACED 5MM ABOVE METAL WORK AND GROUNDED TO METAL CHASSIS
VIA METAL STANDOFFS
If mounting via metal standoffs is not possible, double sided gasket pads can be used. The controller
PCB should still be spaced at least 5mm away from the mounting surface, as shown in Figure 9.
Any gasket used must maintain its adhesion at any temperature that it may be subjected to in service.
FIGURE 7
FIGURE 8
RECEIVE 1 (RX1)
RECEIVE 2 (RX2) OPTIONAL
TRANSMIT 1 (TX1)
TRANSMIT 2 (TX2)
MINIMUM 5MM GAP

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DOUBLE SIDED GASKET PADS MOUNTING OPTION
If gasket pads are used to mount the controller PCB, a separate ground connection from one of the
controller PCB screw holes must be made to the LCD chassis using a low impedance ground cable,
as shown in Figure 10.
LOW IMPEDANCE GROUNDING CABLE
FIGURE 9
FIGURE 10
MINIMUM 5MM GAP

ROUTING THE SENSOR
FLEXIBLE CABLES 4

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ROUTING THE SENSOR FLEXIBLE CABLES
The following stages show an example of one possible integration scenario.
The flexible cables should initially be taped to the rear of the LCD at the edges, as shown in Figure 11.
A tape such as 3M 1350 or similar can be used. Any tape used must maintain its adhesion at any
temperature that it may be subjected to in service. Care should be taken to avoid the flexible cables
crossing over each other after fixing is complete.
INITIAL ROUTING OF FLEXI TAILS
The flexible cable bend radius at the sensor edge should be a minimum of 2.5mm, as shown
in Figure 12.
FLEXIBLE CABLE BENDING AT SENSOR EDGE
The flexible cables can then be creased to produce 90 degree bends. Creasing should be achieved by
applying pressure with finger tips only. Once creased, they should not be repeatedly un-creased and
re-creased. Additional tape should be used to hold the flexible cables in position, as shown in Figure 13.
FIGURE 11
FIGURE 12
MINIMUM 2.5MM RADIUS

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FLEXIBLE CABLES CAN BE CAREFULLY CREASED TO PRODUCE 90 DEGREE BENDS
The flexible cables should be plugged into the controller PCB, as shown in Figure 14.
FLEXIBLE CABLES PLUGGED INTO THE CONTROLLER PCB
The gold contact side of the flexible cable should be visible, as depicted on the label shown in Figure 15.
FIGURE 13
FIGURE 14

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LABEL SHOWING STANDARD FLEXIBLE CABLE INSERTION ORIENTATION
Care should be taken to ensure the flexible cables are fully inserted into the ZIF sockets, as shown
in Figure 16.
CORRECT AND INCORRECT FLEXIBLE CABLE INSERTION INTO ZIF SOCKET
Once the flexible cables have been correctly inserted into the ZIF sockets, the ZIF connector locking bars
must be pressed down in order to lock the flexible cables into the ZIF sockets, as shown in Figure 17.
FIGURE 15
FIGURE 16

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ZIF CONNECTOR LOCKING BAR IN UNLOCKED AND LOCKED POSITIONS
Further bends and tape can be applied to the flexible cables to position them securely, as shown in
Figure 18. Some bends, such as those next to the two ZIF connectors, may be better without creasing.
Avoid trying to crease the flexible cable within 5mm of the stiffener at the ZIF end.
FURTHER BENDS AND TAPE APPLIED TO THE FLEXIBLE CABLES
The flexible cables can be doubled back on themselves, creased, and taped down in the straight
sections to take up any additional length, as shown in Figure 19.
FIGURE 17
FIGURE 18

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FINAL SOLUTION WITH ALL FLEXIBLE CABLES SECURED IN PLACEFIGURE 19

POWER AND DATA
CONNECTIONS 5