ZEBRA TC78 Touch Computer User Guide

ZEBRA TC78 Touch Computer

Product Information: TC78 Touch Computer

The TC78 Touch Computer is a device manufactured by Zebra Technologies Corporation and its subsidiaries. It is a touch screen device that features an 8MP front camera, a proximity/light sensor, a 6-inch LCD touch screen, and a PTT button. The device also has a rear camera with a ToF module that employs time of flight techniques to resolve distance between the camera. Additionally, the device has a power button, microphone, speaker, and DC input pins for charging.

Features **

**

The TC78 Touch Computer has the following features:

• 8MP front camera for taking photos and videos
• Proximity/light sensor for controlling display backlight intensity
• 6-inch LCD touch screen for displaying all information needed to operate the device
• PTT button typically used for PTT communications
• Rear camera with ToF module for measuring distance between the camera and objects
• Power button for turning the display on and off, resetting the device, powering off, or swapping battery
• Microphone for noise cancellation
• Speaker for audio output in speakerphone mode and video/music playback
• DC input pins for charging (5V through 9V)

Product Usage Instructions

To use the TC78 Touch Computer, follow these steps:

1. Press and hold the power button to turn on the device.
2. Use the touch screen to navigate through the device.
3. To take photos or videos, use the front camera by pressing the corresponding button on the touch screen.
4. To initiate data capture, press the scan button.
5. Use the volume up/down button to increase or decrease audio volume.
6. If you need to reset the device, press and hold the power button.
7. To charge the device, connect it to a power source using the DC input pins or USB Type C interface with 2 charge pins.
8. To remove the battery, pinch both latches in and lift up.
9. To use the PTT button for PTT communications, configure it using the device settings. In some countries, the button is configurable for use with other applications

Copyright
ZEBRA and the stylized Zebra head are trademarks of Zebra Technologies Corporation, registered in many jurisdictions worldwide. All other trademarks are the property of their respective owners. ©2022 Zebra Technologies Corporation and/or its affiliates. All rights reserved.
Information in this document is subject to change without notice. The software described in this document is furnished under a license agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of those agreements.
For further information regarding legal and proprietary statements, please go to:
SOFTWARE: zebra.com/linkoslegal.
COPYRIGHTS: zebra.com/copyright.
WARRANTY: zebra.com/warranty.
END USER LICENSE AGREEMENT: zebra.com/eula.

Terms of Use
Proprietary Statement
This manual contains proprietary information of Zebra Technologies Corporation and its subsidiaries (“Zebra Technologies”). It is intended solely for the information and use of parties operating and maintaining the equipment described herein. Such proprietary information may not be used, reproduced, or disclosed to any other parties for any other purpose without the express, written permission of Zebra Technologies.

Product Improvements
Continuous improvement of products is a policy of Zebra Technologies. All specifications and designs are subject to change without notice.

Liability Disclaimer
Zebra Technologies takes steps to ensure that its published Engineering specifications and manuals are correct; however, errors do occur. Zebra Technologies reserves the right to correct any such errors and disclaims liability resulting therefrom.

Limitation of Liability
In no event shall Zebra Technologies or anyone else involved in the creation, production, or delivery of the accompanying product (including hardware and software) be liable for any damages whatsoever (including, without limitation, consequential damages including loss of business profits, business interruption, or loss of business information) arising out of the use of, the results of use of, or inability to use such product, even if Zebra Technologies has been advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

Product Features

This section lists the features of the TC78 touch computer.

Figure 1 Front and Side Views

Table 1 TC78 Front View

controlling display backlight intensity.
5| Battery status LED| Indicates battery charging status while charging and application generated notifications.
6, 9| Scan button| Initiates data capture (programmable).
7| Volume up/down button| Increase and decrease audio volume (programmable).
8| 6 in. LCD touch screen| Displays all information needed to operate the device.
10| PTT button| Typically used for PTT communications. Where regulatory restrictions exist1, button is configurable for use with other applications.
1Pakistan, Qatar

Figure 2 Back, Top, and Bottom View

Table 2 TC78 Rear View

device, power off or swap battery.
2, 4, 9| Microphone| Use for noise cancellation.
3| Back common I/O 8 pins| Provides host communications, audio and device charging via cables and accessories.
5| Battery release latches| Pinch both latches in and lift up to remove the battery.
6| Battery| Provides power to the device.
7| Speaker| Provides audio output for video and music playback. Provides audio in speakerphone mode.
8| DC input pins| Power/ground for charging (5V through 9V).
10| USB Type C and 2 charge pins| Provides power to the device using I/O USB-C interface with 2 charge pins.
11| Hand strap attachment points| Attachment points for the hand strap.
12| ToF module| Employs time of flight techniques to resolve distance between the camera and subject (premium configurations only).
13| 16 MP rear camera with flash| Takes photos and videos with flash to provide illumination for the camera.

Installing a microSD Card

The microSD card slot provides secondary non-volatile storage. The slot is located under the battery pack. Refer to the documentation provided with the card for more information, and follow the manufacturer’s recommendations for use.

CAUTION—ESD: Follow proper electrostatic discharge (ESD) precautions to avoid damaging the microSD card. Proper ESD precautions include, but are not limited to, working on an ESD mat and ensuring the operator is properly grounded.

1. Lift the access door.

2. Slide the microSD card holder to the Open position.

3. Lift the microSD card holder door.

4. Insert the microSD card into the card holder ensuring that the card slides into the holding tabs on each side of the door.

5. Close the microSD card holder door.

6. Slide the microSD card holder door to the Lock position.
   NOTE: Access door must be replaced and securely seated to ensure proper device sealing.

7. Re-install the access door.

Installing the SIM Card

CAUTION: Follow proper electrostatic discharge (ESD) precautions to avoid damaging the microSD card. Proper ESD precautions include, but are not limited to, working on an ESD mat and ensuring the operator is properly grounded.

1. Remove the access cover.

2. Slide the SIM card holder to the unlock position.

3. Lift the SIM card holder door.

4. Place the SIM card into the card holder with contacts facing down.
   

5. Close the SIM card holder door.

6. Slide to SIM card holder door to the lock position.
   NOTE: Access door must be replaced and securely seated to ensure proper device sealing.

7. Re-install the access door.

Installing the Battery

This section describes how to install the battery into the device.

NOTE: User modification of the device, particularly in the battery well, such as labels, asset tags, engravings, stickers, etc., may compromise the intended performance of the device or accessories. Performance levels such as sealing (Ingress Protection (IP)), impact performance
(drop and tumble), functionality, temperature resistance, etc. could be affected. DO NOT put any labels, asset tags, engravings, stickers, etc. in the battery well.

1. Insert the battery, bottom first, into the battery compartment in the back of the device.
2. Press the battery down until it snaps into place.

Using the Rechargeable Li-Ion Battery with BLE Beacon
This device utilizes a rechargeable Li-Ion battery to facilitate BLE Beacon. Once enabled, the battery transmits a BLE signal for up to seven days while the device is powered off due to battery depletion.

NOTE: The device transmits a Bluetooth beacon only when the device is powered off or in Airplane Mode.
For additional information on configuring the Secondary BLE settings, see techdocs.zebra.com/emdk-for- android/11/mx/beaconmgr.

Charging the Spare Battery
This section provides information on charging a spare battery.

1. Insert a spare battery into the spare battery slot.
2. Ensure the battery is seated properly. The Spare Battery Charging LED blinks indicating charging. See Charging Indications on page 12 for charging indicators.

The battery charges from fully depleted to 90% in approximately 2.5 hours and from fully depleted to 100% in approximately 3.5 hours. In many cases the 90% charge provides plenty of charge for daily use. Depending on the usage profile, a full 100% charge lasts for approximately 14 hours of use. To achieve the best charging results use only Zebra charging accessories and batteries.

Charging Indications
The charging/notification LED indicates charging status.

Table 3 Charging/Notification LED Charging Indicators

or connected to a power source. Charger/cradle is not powered.
Slow Blinking Amber (1 blink every 4 seconds)| | Device is charging.
Slow Blinking Red (1 blink every 4 seconds)| | Device is charging but the battery is at end of useful life.
Solid Green| | Charging complete.
Solid Red| | Charging complete but the battery is at end of useful life.
Fast Blinking Amber (2 blinks/second)| | Charging error, e.g.:

• Temperature is too low or too high.
• Charging has gone on too long without completion (typically twelve hours).

Fast Blinking Red (2 blinks/second)| | Charging error but the battery is at end of useful life., e.g.:

• Temperature is too low or too high.
• Charging has gone on too long without completion (typically twelve hours).

Charging

Use one of the following accessories to charge the device and/or spare battery.

Charging and Communication

Charging the Device

This section provides information for charging the device.
NOTE: Ensure that you follow the guidelines for battery safety described in the TC73/TC78 Product Reference Guide.

1. To charge the main battery, connect the charging accessory to the appropriate power source.
2. Insert the device into a cradle or attach to a cable. The device turns on and begins charging. The Charging/Notification LED blinks amber while charging, then turns solid green when fully charged.

The standard battery charges from fully depleted to 90% in approximately two hours and from fully depleted to 100% in approximately three hours. In many cases the 90% charge provides plenty of charge for daily use. Depending on usage profile, a full 100% charge lasts for approximately 14 hours of use. To achieve the best charging results use only Zebra charging accessories and batteries. Charge batteries at room temperature with the device in sleep mode.

2-Slot (1 Device/1 Spare Battery) USB Charging Cradle

2-Slot (1 Device/1 Spare Battery) Ethernet and Communication Setup

NOTE: The USB to Ethernet module kit (KT-TC51-ETH1-01) connects via a single-slot USB charger.

5-Slot Charge Only Cradle

5-Slot Ethernet Cradle Setup

5-Slot (4 Device/4 Spare Battery) Charge Only Cradle with Battery Charger

Charge/USB-C Cable

Scanning
To read a barcode, a scan-enabled application is required. The device contains the DataWedge application that allows the user to enable the imager, decode the barcode data and display the barcode content.

NOTE: The SE55 displays the green dash-dot-dash aimer. The SE4720 imager displays a red dot aimer.

1. Ensure that an application is open on the device and a text field is in focus (text cursor in text field).

2. Point the exit window on the top of the device at a barcode.

3. Press and hold the scan button.
   To assist in aiming, the red LED aiming pattern and red aiming dot turn on for the SE4720 and the green LED aiming pattern and green dash-dot-dash turn on for the SE55.
   NOTE: When the device is in Picklist mode, the imager does not decode the barcode until the crosshair or aiming dot touches the barcode.

4. Ensure the barcode is within the area formed in the aiming pattern. The aiming dot is used for increased visibility in bright lighting conditions.
   Figure 3 Aiming Pattern

Figure 4 Pick List Mode with Multiple Barcodes in Aiming Pattern

5. The Data Capture LED lights green and a beep sounds, by default, to indicate the barcode was decoded successfully.

6. Release the scan button.
   NOTE: Imager decoding usually occurs instantaneously. The device repeats the steps required to take a digital picture (image) of a poor or difficult barcode as long as the scan button remains pressed.

7. The barcode content data displays in the text field.

Ergonomic Considerations

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