HP U28 User Manual

1
Table of Content
1 Getting started ............................................................................................................................................ 2
Important safety information ..................................................................................................................2
Important service information and precautions ......................................................................................3
RoHS (2002/95/EC) requirements.........................................................................................................3
General descriptions ............................................................................................................................. 3
Firmware updates ..................................................................................................................................4
Before returning the repaired product to the customer ......................................................................... 4
2 Monitor features .......................................................................................................................................... 5
Features ................................................................................................................................................ 5
Front components ..................................................................................................................................6
Rear components .................................................................................................................................. 7
Locating the serial number and product number ...................................................................................8
3 Illustrated parts catalog ............................................................................................................................ 10
How to order parts ...............................................................................................................................11
4 Removal and replacement procedures .....................................................................................................12
Preparation for disassembly ................................................................................................................12
Rear Cover .......................................................................................................................................... 12
Power board （adapter） ................................................................................................................... 15
DisplayPort connector location ............................................................................................................16
HDMI connector P103 ...............................................................................................................16
Function test ........................................................................................................................................18
Support and troubleshooting ...............................................................................................................18
Index ....................................................................................................................................................20

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

Depth (with stand)	189.9 mm
Height (with stand)	531.4 mm
Weight (with stand)	6350 g
Depth (without stand)	43.4 mm
Width (without stand)	637.1 mm
Height (without stand)	371.2 mm