Zebra TC77 User Manual

Maintenance and Troubleshooting
223
Display
The display can be wiped down with an approved alcohol wipe, but care should be taken not to allow any
pooling of liquid around the edges of the display. Immediately dry the display with a soft, non-abrasive cloth to
prevent streaking.
Camera and Exit Window
Wipe the camera and exit window periodically with a lens tissue or other material suitable for cleaning optical
material such as eyeglasses.
Cleaning Battery Connectors
To clean the battery connectors:
1. Remove the main battery from the mobile computer.
2. Dip the cotton portion of the cotton-tipped applicator in isopropyl alcohol.
3. To remove any grease or dirt, rub the cotton portion of the cotton-tipped applicator back-and-forth across
the connectors on the battery and terminal sides. Do not leave any cotton residue on the connectors.
4. Repeat at least three times.
5. Use a dry cotton-tipped applicator and repeat steps 3 and 4. Do not leave any cotton residue on the
connectors.
6. Inspect the area for any grease or dirt and repeat the cleaning process if necessary.
CAUTION: After cleaning the battery connectors with bleach-based chemicals, follow the Battery Connector Cleaning in
-
structions to remove bleach from the connectors.
Cleaning Cradle Connectors
To clean the connectors on a cradle:
1. Remove the DC power cable from the cradle.
2. Dip the cotton portion of the cotton-tipped applicator in isopropyl alcohol.
3. Rub the cotton portion of the cotton-tipped applicator along the pins of the connector. Slowly move the
applicator back-and-forth from one side of the connector to the other. Do not leave any cotton residue on
the connector.
4. All sides of the connector should also be rubbed with the cotton-tipped applicator.
5. Remove any lint left by the cotton-tipped applicator.
6. If grease and other dirt can be found on other areas of the cradle, use a lint-free cloth and alcohol to
remove.
7. Allow at least 10 to 30 minutes (depending on ambient temperature and humidity) for the alcohol to air dry
before applying power to cradle.
If the temperature is low and humidity is high, longer drying time is required. Warm temperature and low
humidity requires less drying time.
CAUTION: After cleaning the cradle connectors with bleach-based chemicals, follow the Cleaning Cradle Connectors in
-
structions to remove bleach from the connectors.

Zebra TC77 Specifications

General

Display diagonal	4.7 \
Touch technology	Dual-touch
Touchscreen type	Capacitive
Display resolution	1280 x 720 pixels
Flash memory	32 GB
Internal memory	4 GB
Internal memory type	-
Compatible memory cards	MicroSD (TransFlash), SD, SDHC, SDXC
Number of cores	8
Processor family	Snapdragon
Processor frequency	2.2 GHz
Processor manufacturer	Qualcomm
Operating system version	8.1
Operating system installed	Android
Data network	2G, 3G, EDGE, GPRS, HSPA, HSPA+, LTE, UMTS
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth version	5.0
GSM bands supported	850, 900, 1800, 1900 MHz
Security algorithms	AES, EAP-TTLS, LEAP, MSCHAPv2, PEAP, TKIP, WEP, WPA, WPA-Enterprise, WPA2, WPA2-Enterprise
Rear camera resolution (numeric)	13 MP
USB 2.0 ports quantity	1
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	-20 - 50 °C
Operating relative humidity (H-H)	5 - 90 %
Battery voltage	3.7 V
Battery capacity	4620 mAh
Certification	WFA (802.11n, WMM-PS, 801.11ac, PMF)
Product color	Black, Silver
Linear (1D) barcodes supported	Code 39
International Protection (IP) code	IP65, IP68
Harmonized System (HS) code	84713000

Weight and Dimensions

Depth	28 mm
Width	84 mm
Height	161 mm
Weight	376 g