Hisense 55U8K User Manual

11
Troubleshooting
If you are having trouble with your TV, first try turning it off and on again. If this does not fix the
problem, check the tips in the following table. If your problem is not listed in the following table,
then contact us at one of the phone numbers on page before.
Issues Possible solutions
No sound or picture
•Check if the power cord is plugged into a powered AC
outlet.
•PressthePowerbuttonontheremotecontroltoactivate
the unit from 'Standby' mode.
•ChecktoseeiftheLEDlightisonornot.Ifitis,thenthe
TV is receiving power.
I have connected an external
source to my TV and I get no
picture and/or sound.
•Checkforthecorrectoutputconnectionontheexternal
source and for the correct input connection on the TV.
•Makesureyouhavemadethecorrectselectionforthe
input mode for the incoming signal.
When I turn on my TV, there is a
delay for a few seconds before the
picture appears. Is this normal?
•Yes,thisisnormal.TheTVisinitializingandsearching
for previous setting information.
The picture is normal but there is
no sound
•Checkthevolumesettings.
•Checkif'Mute'modeissettoOn.
Sound but no picture or black and
white picture
•Ifthepictureisblackandwhite,unplugtheTVfromthe
AC outlet and replug it after 60 seconds.
•CheckthattheColorissetto50orhigher.
•TrydifferentTVchannels.
The sound and/or picture is
distorted or appears wavy
•AnelectricappliancemaybeaffectingtheTV.Turnoff
any appliances that are nearby and move it farther away
from the TV.
•InsertthepowerplugoftheTVsetintoanotherpower
outlet.
The sound and picture is blurry or
cuts out
•Ifusinganexternalantenna,checkthedirection,position
and connection of the antenna.
•Adjustthedirectionofyourantennaorresetornetune
the channel.
A horizontal or vertical stripe
appears on the picture and/or the
picture is shaking
•Checkifthereisanapplianceorelectrictoolnearbythat
is causing interference.
The plastic cabinet makes a
"clicking" type of sound
•The'click'soundcanoccurwhenthetemperatureofthe
television changes. This change causes the television
cabinet to expand or contract, which makes the sound.
This is normal and the TV is OK.
The remote control does not work
•ConrmthatTVstillhaspowerandisoperational.
•Changethebatteriesintheremotecontrol.
•Checkifthebatteriesarecorrectlyinstalled.

Hisense 55U8K Specifications

General

Screen shape	Flat
LED backlight	Yes
Response time	8 ms
Display diagonal	55 \
Display brightness	1500 cd/m²
Display technology	LCD
Native aspect ratio	16:9
Native refresh rate	144 Hz
LED backlighting type	Mini LED
Contrast ratio (typical)	-
Display diagonal (metric)	139.7 cm
Motion interpolation technology	Motion Rate 480
PC in (D-Sub)	No
HDMI ports quantity	4
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports	1
Tuner type	Analog & digital
Digital signal format system	ATSC
Smart modes	Filmmaker
App distribution platform	Google Play
Operating system installed	Google TV
Audio decoders	Dolby Atmos
RMS rated power	50 W
Audio output channels	2.1.2 channels
Wi-Fi standards	Wi-Fi 6E (802.11ax)
Bluetooth version	5.2
Stand type	Legs stand
Product color	Black
Panel mounting interface	400 x 300 mm
Game features	Auto Low Latency Mode (ALLM), Game Bar, Variable Refresh Rate (VRR)
AMD FreeSync type	FreeSync Premium Pro
High Dynamic Range (HDR) technology	Dolby Vision, High Dynamic Range 10 (HDR10), High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG)
Number of OSD languages	3
On Screen Display (OSD) languages	ENG, ESP, FRE
AC input voltage	100 - 240 V
AC input frequency	50/60 Hz
Power consumption (max)	220 W
Power consumption (standby)	0.5 W
Power consumption (typical)	- W
Cables included	AC
Package depth	1389.4 mm
Package width	856 mm
Package height	185.4 mm
Package weight	24993 g

Weight and Dimensions

Depth (with stand)	320 mm
Width (with stand)	1231.9 mm
Height (with stand)	774.7 mm
Weight (with stand)	19006 g
Depth (without stand)	76.2 mm
Height (without stand)	716.3 mm
Weight (without stand)	18688 g