Honeywell Minitrend QX User manual

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Paperless Recorder - Installation Instruction
Touch screen assembly replacement
Minitrend QX/Minitrend GR Recorder
This Installation Instruction sheet is intended as a guide for replacing or installing hardware and for setting up
functionality in the recorder. Refer to the User manual for detailed operational requirements.
The recorders are designed for ease of assembly with minimal disturbance to the rest of the unit. If unsure, please
return the unit to your supplier for repair or upgrade.
Removing the case and opening the back of the recorder should only be performed under the following circumstances:
When an item of hardware requires individual replacement.
When an item of hardware is to be retrospectively fitted.
In all other instances it is recommended that the complete unit be returned to an authorised agent or service centre.
For Agency Approved recorders the product needs to be upgraded or repaired by an Authorized Repair facility
WARNING
HAZARDOUS VOLTAGES
Disconnect all power to the recorder before removing the case and attempting any maintenance procedures.
SAFETY TESTS
Upon completion of service procedures detailed in this instruction verify the installation requirements as per the
installation manual.
Failure to comply with these instructions could result in death or serious injury
CAUTION
OBSERVE ANTI-STATIC PRECAUTIONS
Refer to BS EN61340-5-1: 2001. Basic specification. Protection of electrostatic sensitive devices.
Full anti-static precautions MUST be observed when in contact with the electronics of your recorder.
SAVE DATA, SETUPS AND LAYOUTS
Removal of PCBs and battery back-up will result in the loss of all non-volatile data.
Ensure all data and set-ups are saved.
Failure to comply with these instructions may result in product damage.
Before attempting to repair or upgrade a recorder, it is advisable to clear a sufficient work space so components such as
the front panel can be rested on the work surface without getting scratched or damaged.

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Panel Mounting
Before a new Touch screen assembly can be fitted the recorder must be removed from the panel. Loosen the mounting
clamp screws, slide the clamp towards the rear of the recorder and remove the clamps and the recorder.
Removing the touch screen assembly
To fit a new Touch screen assembly the case and back panel must be removed. The case and back panel can be
removed as a single assembly. Remove the 2 screws on each side of the case as shown in Fig 1 below
Slide the case and rear panel assembly off the recorder.
Fig 1
Remove 2 screws from
each side of the case
Fig 2
GR Minitrend
QX Minitrend
GR Minitrend
QX Minitrend

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To remove the front surround assembly four self tapping screws must be removed. See Fig 3
Once these have been removed the front surround assembly can be carefully drawn forward.
Disconnect the speaker cable from the mother board.
Disconnect the display cable, inverter cable and touch screen cable from the processor board. Take care not to pull on
the cable, only on the connector body.
Fig 3
Minitrend GR &
Minitrend QX
Speaker connector
4 screws to release Front
surround. 2 on each side
Fig 4
Minitrend GR & Minitrend QX
Touch Screen
cable
Display Cable
Inverter cable
Speaker
cable
4 screws to release Front
surround. 2 on each side
Speaker connector
Display LVDS
Cable
Touch Screen
cable
Inverter cable

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Note:
The touch screen cable may have an extender cable fitted as shown in fig 4 or may have a longer cable that plugs
directly onto the board.
There are two different types of display connector. One has a black top, one has brown. Check which type is fitted to
your board and follow the relevant instructions.
Type 1
The display cable is unplugged by gently pulling up the top part (the black part as shown below) of the connector (J4)
until the cable is unclamped and can easily be pulled free. See fig 5
Type 2
The display cable is unplugged by gently rotating the brown part of the connector (J4) until the cable is unclamped and
can easily be pulled free. See fig 6
Fig 5
Pull top part of connector (black part)
upwards. This will release the cable
that can then be withdrawn
Fig 6
Rotate brown part upwards to release
cable

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To remove the front bezel and touch screen assembly there are 4 self tapping screws that need to be removed, see Fig
7. Two screws are at the top of the assembly, and two screws are fitted one from each side. When these are removed
the display assembly can be separated.
Take care not to touch the display face or the back of the touch screen, any dirt or finger marks will show when the unit
is re-assembled.
The display assembly can now be lifted out of the Touch screen assembly. Remove the display assembly; ensure it is
placed on something that will prevent it getting scratched or dirty.
Carefully place the display assembly into the new touch screen/bezel assembly, ensure no cables are trapped.
Re-building the recorder
Rebuilding the recorder is the reverse process.
Carefully remove the protective covering from the back of the touch screen.
Before refitting the bezel/touch screen assembly clean any dirt or marks form the back of the touch screen or display.
Use a lint free cloth to clean both parts, do not use any solvents.
Take the display assembly and place it back into the bezel/touch screen assembly. Fit the 4 self tap screws that attach
the two parts.
Offer up the front surround to the unit.
Reconnect the cables. The inverter cable and the speaker cable are polarised and must be fitted the correct way round.
The touch screen connector must be fitted the same way round as it was removed. The cable must not have a twist in it.
It should be fitted so that the top wire as it comes out of the bezel is towards the centre of the board. The new touch
screen will not need an extender cable, so if one was fitted on you original screen this can be discarded.
Fig 7
4 screws to
release display
assembly

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Depending on the type of display connector fitted to your board select the correct type below and follow the procedure
Type 1
The Display connector is refitted by pulling up the top of the
connector (J4)
Inserting the cable as far as it will go. The blue insulator
should be towards the back of the unit.
Hold the cable in position, ensuring it is fitted straight,
push down the top of the connector to clamp it in place.

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Type 2
The Display connector is refitted by rotating the top of the
connector (J4)
Inserting the cable as far as it will go. The blue insulator
should be towards the back of the unit.
Hold the cable in position, ensuring it is fitted straight, push
the top of the connector back down to clamp it in place.

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Once all the cables have been reconnected slide the front surround assembly onto the chassis plates and fit the 4 self
tap screws that hold the unit together.
Slide the case back onto the recorder ensuring it is fitted the right way round. The cooling slots should be at the top of
the unit.
Finally fit the four M3 screws that hold the case to the chassis.
Touch Screen Calibration
Calibration of the touch screen may not be required.
Test the touch screen calibration by using the “Touch Test” option on the recorder. This allows you to touch the screen
and check a cursor moves to the correct position. This can be accessed by entering the “Main Menu”, then “Screen”,
then “Touch Test”.
If the touch screen needs recalibrating:
Exit the touch test screen with the “finish” button the press “Calibrate”. This will take you to the calibration screen.
Using the stylus touch the screen at the centre of the cursor. Hold the stylus there until the cursor moves. Continue
touching and holding on the cursor until calibration is complete.
Once calibration is complete, touch the screen once more to exit calibration.
The new calibration can be tested again with “Touch test” if required.
More information on touch screen calibration can be found in the product user manual.
Copyrighted Materials. For more information please contact your supplier.