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Getting started 

Read this chapter to learn about safety information and where to find additional HP resources. 

 

Important safety information 

Carefully read the cautions and notes within this document to minimize the risk of personal injury to service 
personnel. The cautions and notes are not exhaustive. Proper service methods are important to the safe, reliable 
operation of equipment. Improper service methods can damage equipment. 

The service procedures recommended and described in this service manual provide effective methods of 
performing service operations. Service engineers should have prior repair knowledge and experience as well as 
appropriate training for the product before performing service procedures. 

 

Be sure your working environment is dry and clean and meets all government safety requirements. 

 

Be sure that other persons are safe while you are servicing the product. 

 

Do not perform any action that can cause a hazard to the customer or make the product unsafe. 

 

Use proper safety devices to ensure your personal safety. 

 

Always use approved tools and test equipment for servicing. 

 

Never assume the product’s power is disconnected from the main power supply. Check that it is 

disconnected before opening the product’s cabinet. 

 

Modules containing electrical 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 the monitor. Adherence to the procedures and 

precautions is essential for proper service. 

 

 

IMPORTANT: 

Only trained service personnel who are familiar with this HP product should perform service or 

maintenance for it. Before performing any service or maintenance, personnel must read the important safety 

information. 

 

 

IMPORTANT: 

You must disconnect the power cord from the power source before opening the monitor to 

prevent component damage. 

 

 

Important service information and precautions 

 

Repair must be performed by professional service technicians in a repair center. End users should not 

perform these procedures. 

 

Please note during servicing that the primary side is the high voltage area. 

 

This monitor meets ROHS requirements. Be sure to use lead-free solder wire when soldering. 

 

If you must change a capacitor, be sure to match the polarity as printed on the PCB. 

 

If you must replace a capacitor, make sure the specification and part number match the BOM and 

location. 

Summary of Contents for 24fh

Page 1: ...Maintenance and Service Guide 24fh model 27fh model ...

Page 2: ...SUMMARY This guide provides information about spare parts removal and replacement of parts diagnostic tests problem troubleshooting and more ...

Page 3: ...her 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 First Edition Marc...

Page 4: ...eturning the repaired product to the customer 2 2 Monitor features 3 Features 3 Front components 4 Rear components 5 Locating the serial number and product number 6 3 Illustrated parts catalog 8 How to order parts 11 4 Removal and replacement procedures 12 Preparation for disassembly 12 RC 12 Connector repair 17 VGA P6 17 HDMI connector P3 P4 18 Function test 19 Support and troubleshooting 20 Inde...

Page 5: ...opening the product s cabinet Modules containing electrical 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 Thi...

Page 6: ...tance in Electrical and Electronic Equipment Directive 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...

Page 7: ...A video inputs AMD FreeSync qualified providing PC gaming enjoyment with smooth responsive tear free performance whenever a picture changes on the screen Four Function buttons under the right side of the front bezel three that can be reconfigured to quickly access the most commonly used operations Plug and play capability if supported by the operating system Security slot provision on rear of moni...

Page 8: ...on 3 assignable Information If the OSD menu is closed and HDMI is the primary video source opens the Information menu Auto Adjustment If the OSD menu is closed and VGA is the primary video source activates the auto adjustment feature to optimize the screen image Minus If the OSD menu is open navigates backward through the OSD menu and decreases adjustment levels 3 Input Plus Function button 2 assi...

Page 9: ...only used operations Press the Menu button to open the OSD and then select Menu Control Select Assign buttons and then select one of the available options for the button you want to assign Rear components To identify the components on the rear of the monitor use this illustration and table Table 2 2 Table 2 3 Rear components and their descriptions Component Function 1 HDMI connector Connects an HD...

Page 10: ... the source device 4 Power connector Connects a power cord 5 Security cable slot Connects a security cable to the monitor Locating the serial number and product number The rating labels on the monitor provide the spare part number product number and serial number You may need these numbers when contacting HP about the monitor model The rating labels are located on the bottom side of the monitor di...

Page 11: ...7 Safety label ...

Page 12: ...ty 1 DISPLAY BD ASS Y 1 2 MAIN BD ASS Y HP 24fh 1 3 23 8 ES8 0 LCM HP black 1 4 Frame_L ABS 94 HB J13417B5 1 5 Frame_R ABS 94 HB J13417B5 1 6 SHIELDING 1A1H ENCORE 1 7 MAC SCREW MI M3 0 4 0L BLK Ni 13 8 MAC SCREW MI M3 0 6 0L BLK ZNNI 3 9 MAC SCREW MH 4 40 5 0L Ni 2 10 MAC SCREW MRF M3 0 6 0L 3 11 REAR COVER ABS 94 HB Jack Black ASS Y 1 ...

Page 13: ...ONT DECO ENCORE2 24FH ASS Y 1 13 NECK AL Jack Black ENCORE2 24fh ASS Y 1 14 BASE ABS 94 HB Jack Black ASS Y 1 15 WH KY 1251HS01 06 KY 1021HS 06 28 95mm 1 16 WH FFC 8P 0 5mm 490mm 1 17 WH FFC 30P 1 0mm 250mm 1 ...

Page 14: ...J13417B5 1 6 SHIELDING 1 7 MAC SCREW MI M3 0 4 0L BLK Ni 13 8 MAC SCREW MI M3 0 6 0L BLK ZNNI 4 9 MAC SCREW MH 4 40 5 0L Ni 2 10 MAC SCREW MRF M3 0 6 0L 4 11 REAR COVER ENCORE2 24FH ASS Y 1 12 FRONT DECO ENCORE2 24FH ASS Y 1 13 NECK AL Jack Black ENCORE2 27fh 1 14 BASE ABS 94 HB Jack Black ASS Y 1 15 WH KY 1251HS01 06 KY 1021HS 06 28 1 16 WH FFC 8P 0 5mm 580mm 1 ...

Page 15: ...090929 S154XLF HDMI P3 P4 Farnell 51V019S 33WN BD Digikey 483078012 NOTE The connector may need to be modified to meet functionality regulatory and safety requirements if it is not an exact match You can purchase cables from the HP part store at https partsurfer hp com Search aspx NOTE HP continually improves and changes product parts For complete and current information about supported parts for ...

Page 16: ... chapter 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 ...

Page 17: ...ase and neck Strip the screws from rear cover so that the rear metal cover can be removed after be turn back Step 2 Pull out the 8P FFC so that can take the rear cover out of MNT such as bellow Step 3 Push up and disassemble the DECO from the panel ...

Page 18: ...14 Step 4 To remove the shielding contain the other material 4 1 Remove the acetate tapes covering the LVDS LED FFCs 4 2 Pull out the LVDS LED FFCs to separate the base assembly from the unit ...

Page 19: ...15 Step 5 Strip the screws 4pcs Strip the other screws 8pcs from the M B ...

Page 20: ...16 Strip the other screws 9pcs from the LCM Step 6 Release all materials and put some by ESD Can follow the picture as bellow The overall look after when finished ...

Page 21: ...P3 P4 Before repairing connectors follow these steps Prepare the monitor for disassembly See Preparation for disassembly on page 12 VGA P6 Repair the VGA connector 1 Use a hot air gun to melt the solder on the pins Pin solder with soldering iron and absorber You can gently push down with the soldering iron once everything is molten to move the CN201 out of the through holes ...

Page 22: ...onent HDMI connector P3 P4 Repair the HDMI connector 1 Use a soldering iron 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 J2 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 ...

Page 23: ...s correctly on the monitor Computer or DVD player DP test Confirm whether image displays and sound plays correctly on the monitor Computer or DVD player Audio test Change volume and balance to confirm whether volume is smooth and loud enough Speaker Test item Operating description Tool used VGA test Confirm whether image displays and sound plays correctly on the monitor Computer or DVD player ...

Page 24: ...f and manually select the input Image appears blurred indistinct or too dark Brightness is too low Open the OSD menu and select Brightness to adjust the brightness scale as needed Check Video Cable is displayed on screen Monitor video cable is disconnected Connect the appropriate video signal cable between the computer and monitor Be sure that the computer power is off while you connect the video ...

Page 25: ...21 OSD lockout function No low power sleep mode The monitor s power button is locked Press and hold the power button for 10 seconds to disable the power button lock function ...

Page 26: ... parts ordering 10 power button location 5 power connector location 5 6 power light location 4 precautions 1 preparation for disassembly 11 RC removal 11 rear components 5 removal RC 11 removal and replacement procedures 11 returning to customer 2 RoHS 2002 95 EC requirements 2 safety information 1 serial number location 6 service information 1 spare parts 8 support and troubleshooting 18 troubles...

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