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Index

components

front, 5

rear, 6

connector repair, 16

features, 4

firmware updates, 3

front components, 5

function test, 17

how to order parts, 10

illustrated parts catalog, 9

parts, 10

parts, ordering, 10

power board removal, 14

precautions, 2

preparation for disassembly, 11

RC removal, 11

rear components, 6

removal

power board, 14

RC, 11

removal and replacement procedures, 11

returning to customer, 3

RoHS (2002/95/EC) requirements, 3

safety information, 2

serial number location, 7

service information, 2

spare parts, 11

support and troubleshooting, 18

troubleshooting, 18

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HP U28 Specifications

General

Color depth	8 bit
Pixel pitch	0.116 x 0.116 mm
Screen shape	Flat
Pixel density	157 ppi
Display diagonal	28 \
Surface hardness	3H
Display technology	LCD
Native aspect ratio	16:9
Vertical scan range	30 - 60 Hz
Maximum refresh rate	60 Hz
Horizontal scan range	27 - 136 kHz
Display number of colors	-
Display brightness (typical)	400 cd/m²
Supported graphics resolutions	640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1440 x 900 (WXGA+), 1440 x 900, 1600 x 900, 1920 x 1080 (HD 1080), 2560 x 1440, 3840 x 2160
Pivot angle	-90 - 90 °
Tilt angle range	-5 - 23 °
Panel mounting interface	100 x 100 mm
USB hub version	3.2 Gen 1 (3.1 Gen 1)
DisplayPort version	1.2
USB Power Delivery up to	65 W
USB Type-A downstream ports quantity	3
HP segment	Home
Package depth	165 mm
Package width	824 mm
Package height	470 mm
Package weight	10450 g
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	20 - 80 %
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	155 W
Power consumption (standby)	0.5 W
Power consumption (typical)	45 W
Certification	MEPS; BSMI; CB; CCC; CE; CECP; CEL; EAC; ENERGY STAR®; FCC; ISO 9241-307; KC/KCC; NOM; PSB; SEPA; TCO Certified; TUV-S; UL/CSA; VCCI; Vietnam MEPS; WEEE; ISC; WW application; ICE
Product color	Silver
Country of origin	China
Sustainability certificates	CE, ENERGY STAR, TCO

Weight and Dimensions