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EL-MF877-00 Page 21
Template Revision C
Last revalidation date

April

-20

HPI instructions for this template are available at

Содержание L95468

Страница 1: ...Maintenance and Service Guide U27 4k model L95468 SUMMARY This guide provides information about spare parts removal and replacement of parts diagnostic tests problem troubleshooting and more ...

Страница 2: ...d States and other countries The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein Fir...

Страница 3: ...ore returning the repaired product to the customer 2 2 Monitor features 3 Features 3 Rear components 4 Locating the serial number and product number 5 3 Illustrated parts catalog 6 How to order parts 7 4 Removal and replacement procedures 10 Preparation for disassembly 10 RC 10 Connector repair 15 HDMI connector P200 16 DP connector P300 17 Function test 18 Support and troubleshooting 18 Index 20 ...

Страница 4: ......

Страница 5: ...ical components are sensitive to electrostatic discharge ESD Follow ESD safety procedures while handling these parts Some products contain more than one battery Do not disassemble or expose a battery to high temperatures such as throwing into fire or the battery may explode Refer to government requirements for battery recycling or disposal This information provides general service information for ...

Страница 6: ...e is a legal requirement by the EU European Union for the global electronics industry sold in the EU and other countries Any electrical and electronics products launched in the market after June 2006 should meet this RoHS requirement Products launched in the market before June 2006 are not required to be compliant with RoHS parts If the original parts are not RoHS complaint the replacement parts c...

Страница 7: ... High Definition Multimedia Interface HDMI video input cable provided Audio in jack Audio out headphone jack Plug and Play capability if supported by your operating system Security cable slot provision on rear of monitor for optional security cable On screen display OSD adjustments in several languages for easy setup and screen optimization High bandwidth Digital Content Protection HDCP copy prote...

Страница 8: ...layPort cable to the DisplayPort connector on the source device 3 Power connector Connects an AC adapter 4 Audio in Connects an external audio device to the monitor 5 Headphone jack Connects headphones to the monitor 6 USB type B port upstream Connects the USB Type B cable to a source device such as a computer or game console 7 USB ports 3 Connect a USB cable to a peripheral device such as a keybo...

Страница 9: ...rial number and product number are located on a label on the rear of the monitor or on a label under the front bezel of the monitor head You might need these numbers when contacting HP for support For worldwide models except India Barcode label Spec label For India Bar code label ...

Страница 10: ...SCREW MI M3 0 4 0L BLK Ni 16 6 MAC SCREW MRF M3 0 6 0L BLK Ni 2 7 MAIN BD ASS Y HP Beacon U27 4K Wireless LM270WR3 RSAL1 1 8 HP Miracast WIFI Module PCBA 90 52mm LA46HD225 1H FOR DVT 1 9 SHIELDING SECC 0 5T HP U27 4k WIRELESS 1 10 PIFA Antenna 1 37RF for WLAN 802 11 a b g L64AT014 CS H BLK 200mm 500mm HF 1 11 REAR COVER ABS 94 HB Jack Black 6009 0337 HP U27 4k WIRELESS ASS Y 1 12 MAC SCREW MI M3 0...

Страница 11: ...eet functionality regulatory and safety requirements if it is not an exact match HDMI If use the HDMI connector of Farnell 47659 1100 the RC rear cover need to be modified to meet functionality regulatory and safety requirements because it is not an exact match 14 DISPLAY BD ASS Y HP Beacon 1 15 NECK AL Silver SP 1430 HP U27 4k WIRELESS FULFIL 1 16 BASE ABS 94 HB Silver SP 1430 HP U27 4k WIRELESS ...

Страница 12: ...041441 1 or the DC power connector 732 5935 ND the layout of the PCB printed wire board needs to be modified The pin distance is different compares to original connector and it cannot fit I O input output hole The DisplayPort will be lower height than RC surface and the DC power is over the RC hole need to modify the ID ...

Страница 13: ...nges product parts For complete and current information about supported parts for your computer go to http partsurfer com select your country or region and then follow the on screen instructions Internal and External Power Supplies are available for purchase from the following EU distributor EET https www eetgroup com en eu ...

Страница 14: ... of this guide 2 Clean the room for disassembly 3 Identify the disassembly area 4 Check the position that the monitors are to be placed along with the number of monitors Prepare the area for material flow according to the disassembly layout 5 Be sure to have the following equipment and materials Press fixture Working table Screwdriver Knife Gloves Cleaning cloth ESD protection Scraper bar in the f...

Страница 15: ... instructions for this template are available at EL MF877 01 1 Lay the display on soft desk and push the button of stand to unlock the stand then pull out the stand form the monitor head 2 Twist out the screw and separate base and stand Push up the black button Twist out the screw ...

Страница 16: ...12 3 Strip the screws from rear cover then move rear cover follow the below way 4 Remove the acetate tapes and aluminum tape from the LVDS LED Antenna cable ...

Страница 17: ...on C Last revalidation date 13 April 2020 HPI instructions for this template are available at EL MF877 01 5 Pull out the HDMI LVDS LED 20 pin FFC Antenna cable to panel 6 Strip sixteen screws from the rear cover shielding and wifi board ...

Страница 18: ...mal Pad from MB 8 Strip four screws from the shielding 9 Take out MB board from the shielding and remove 1PCS Thermal Pad 1PCS mylar and 1PCS aluminum tape 10 Remove 1PCS gasket block and 1PCS heat sink from miracast board ...

Страница 19: ...onnectors The connectors are on the main board board part number R352718220150 The connectors identifiers are as follows Connector Location HDMI P200 DisplayPort P300 DC Power P1 Audio In AP1 Audio out AP2 USB B type UP1 USB A type UP2 UP3 UP4 Before repairing connectors follow these steps Prepare the monitor for disassembly See Preparation for disassembly on page 12 P200 P300 P1 AP1 AP2 UP1 UP3 U...

Страница 20: ...on and a desoldering pump to remove as much solder as possible from the pin 2 Use a hot air gun to melt the solder on the pins 3 Lift the P200 connector from the PCB 4 Place the new component on the PCB Be sure that it matches the PCB footprint 5 Solder the new component ...

Страница 21: ... 01 DP connector P300 Repair the DP connector 1 Use a soldering iron and a de soldering pump to remove as much solder as possible from the pin 2 Use a hot air gun to melt the solder on the pins 3 Lift the P300 connector from the PCB 4 Place the new component on the PCB Be sure that it matches the PCB footprint 5 Solder the new component ...

Страница 22: ...nfirm whether image displays and sound plays correctly on Audio test Confirm whether sound of music played smoothly through the headphone Table 4 2 Solving common problems Problem Possible cause Solution Screen is blank or video is flashing Power cord is disconnected Connect the power cord Monitor is off Power the power button NOTE If pressing the Power button has no effect press and hold the powe...

Страница 23: ...cable Input Signal Out of Range is displayed on screen Video resolution and or refresh rate are set higher than what the monitor supports Change the settings to a supported setting The monitor is off but it did not seem to enter into Sleep mode The monitor s power saving control is disabled Open the OSD menu and select Power Control Auto Sleep Mode and set auto sleep to On On Screen Menus are Lock...

Страница 24: ...4 parts 6 parts ordering 7 power light location 4 precautions 1 preparation for disassembly 10 RC removal 10 rear components 4 removal RC 10 removal and replacement procedures 10 returning to customer 2 RoHS 2002 95 EC requirements 2 safety information 1 serial number location 5 service information 1 spare parts 6 support and troubleshooting 18 troubleshooting 18 ...

Страница 25: ...EL MF877 00 Page 21 Template Revision C Last revalidation date 13 April 2020 HPI instructions for this template are available at EL MF877 01 ...

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