HP P22h G4 Maintenance And Service Manual

HP P22h G4 Maintenance And Service Manual

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Maintenance and Service Guide
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem
troubleshooting, and more.
P22h G4 model
L73872
P24h G4 model
L73925
P27h G4 model
L73994
P22 G4 model
L73872
P24 G4 model
L73925

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Table of Contents
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Summary of Contents for HP P22h G4

  • Page 1 Maintenance and Service Guide P22h G4 model L73872 P24h G4 model L73925 P27h G4 model L73994 P22 G4 model L73872 P24 G4 model L73925 SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem...
  • Page 2 Devices, Inc. Bluetooth is a trademark owned sure to read “Important Safety Information”. by its proprietor and used by HP Inc. under license. NVIDIA is a trademark and/or registered trademark of NVIDIA Corporation in the U.S. and other countries. USB Type-C and USB-C are registered trademarks of USB Implementers Forum.
  • Page 3: Table Of Contents

    Table of Contents 1 Getting started ................................4 Important safety information ..........................4 Important service information and precautions ....................4 RoHS (2002/95/EC) requirements .......................... 5 General descriptions .............................. 5 Firmware updates ..............................5 Before returning the repaired product to the customer ..................5 2 Monitor features ................................
  • Page 4: Getting Started

    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.
  • Page 5: Rohs (2002/95/Ec) Requirements

    Level 2: Circuit board or standard parts replacement Firmware updates Firmware updates for the monitor are available at support.hp.com. If no firmware is posted, the monitor does not need a firmware update. Before returning the repaired product to the customer Perform an AC leakage current check on exposed metallic parts to be sure the product is safe to operate without the potential of electrical shock.
  • Page 6: Monitor Features

    ● Removable stand for flexible monitor head mounting solutions ● HP Quick Release 2 device to quickly attach the monitor head to the stand with a simple click, and then remove it with the convenient sliding tab release ● DisplayPort video input ●...
  • Page 7: Front Components

    Front components To identify the components on the front of the monitor, use this illustration and table. < Table 2-1> Table 2-1: Front components and their descriptions Component Function Menu button Press to open the OSD menu, select a menu item from the OSD, or close the OSD menu.
  • Page 8: Rear Components

    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 Power connector Connects an AC adapter. Display connector Connects the DisplayPort cable to a source device such as a computer or game console.
  • Page 9: 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 display head.
  • Page 10 Safety label...
  • Page 11: Illustrated Parts Catalog

    21.5 LCM milky way (ES 8.0) MAC. SCREW-MI M4.0*10 ,Blk-Zn TAP.SCREW-T1 M2.0*3.0L,NI DISPLAY BD ASS'Y HP MilkyWay FRONT DECO(ABS 94-HB/Jack Black(6009- 0337))(HP MILKY WAY P22h G4)ASS'Y MYLAR BLACK(96*55*0.325t) MAC. SCREW-MRF M3.0*6.0L, BLK-Ni MAIN BD ASS'Y HP MilkyWay P22h G4 (LM215WF3-RSAU1)
  • Page 12 MYLAR BLACK(40*26*0.3t) A-D PSU 1.3 A 19V (ADO-25W1-A 19(x)_120x70mm)_HP Milkway MAIN SHIELDING (SECC 0.5T)( HP Milky Way A1H1DP1AUDIO ) MAC. SCREW-MI M3.0*4.0L, BLK-Ni MAC. SCREW-MH #4-40*5.0L,Ni BACK COVER(ABS 94-HB/Jack Black(6009- 0337))(HP MILKY WAY P22h G4) NECK(HP Milky Way P22h G4)(Jack Black)_CX BASE(HP MILKY WAY P27h G4)(JACK BLACK)_CX WH FFC 30P(0.5mm) 350mm(3FOLD)60V G/F...
  • Page 13 FRONT DECO(ABS 94-HB/Jack Black(6009-0337))(HP Milky Way P24h G4) MYLAR BLACK(96*55*0.325t) MAC. SCREW-MRF M3.0*6.0L, BLK-Ni MAIN BD ASS'Y HP MilkyWay P24h G4(LM238WF2-RSAU1) MYLAR BLACK(40*26*0.3t) A-D PSU 1.3 A 19V (ADO-25W1-A 19(x)_120x70mm)_HP Milkway MAIN SHIELDING (SECC 0.5T)( HP Milky Way 1A1H1DP1AUDIO ) MAC. SCREW-MI M3.0*4.0L, BLK-Ni...
  • Page 14 MAC. SCREW-MH #4-40*5.0L,Ni BACK COVER (ABS 94-HB/Jack Black(6009-0337))(HP Milky Way P24h G4) NECK(HP Milky Way P24h G4)(Jack Black)_CX BASE(HP MILKY WAY P27h G4)(JACK BLACK)_CX WH FFC 30P(0.5mm) 350mm(3FOLD)60V G/F W/CONN(A15+BC)+AL(AA) HF OP WH FFC 8P(0.5mm) 430mm(2FOLD+PRO)60V G/F (A8+A12/V-CUT) HF WH A1007H00-6P/A1251-H06 #28 420mm W/B HF MAC.SCREW-PH-LWM4*6L NI...
  • Page 15 FRONT DECO(ABS 94-HB/Jack Black(6009-0337))(HP MILKY WAY P27h G4) MYLAR BLACK(96*55*0.325t) MAC. SCREW-MRF M3.0*6.0L, BLK-Ni MAIN BD ASS'Y HP MilkyWay P27h G4(LM270WF5-RSAU1) MYLAR BLACK(40*26*0.3t) A-D PSU 1.84 A 19V (ADO-35W1-A 19(x)_120x70mm)_HP Milkway MAIN SHIELDING (SECC 0.5T)( HP Milky Way 1A1H1DP1AUDIO ) MAC. SCREW-MI M3.0*4.0L, BLK-Ni MAC. SCREW-MH #4-40*5.0L,Ni...
  • Page 16 BACK COVER(ABS 94-HB/Jack Black(6009-0337))(HP MILKY WAY P27h G4) NECK(HP MILKY WAY P27h G4)(JACK BLACK)_CX BASE(HP MILKY WAY P27h G4)(JACK BLACK)_CX WH FFC 30P(0.5mm) 350mm(3FOLD)60V G/F W/CONN(A15+BC)+AL(AA) HF OP WH FFC 8P(0.5mm) 430mm(2FOLD+PRO)60V G/F (A8+A12/V-CUT) HF WH A1007H00-6P/A1251-H06 #28 420mm W/B HF MAC.SCREW-PH-LWM4*6L NI...
  • Page 17 21.5 LCM milky way (ES 8.0)change fixed base MAC. SCREW-MI M4.0*10 ,Blk-Zn TAP.SCREW-T1 M2.0*3.0L,NI DISPLAY BD ASS’Y HP MilkyWay FRONT DECO(ABS 94-HB/Jack Black(6009- 0337))(HP MILKY WAY P22h G4)ASS’Y CR SPONGE(L480*W5*0.3t)(P22h G4) Key Button(ABS 94-HB/Jack Black(6009- 0337))( HP Milky Way )
  • Page 18 Cable management (HP Milky Way P27 G4)(Jack Black)_CX VESA COVER (ABS 94-HB/Jack Black(6009- 0337))(HP MW Fixed Stand P24 G4) PU SPONGE(L80*W18*12T)(P27h G4) Hinge Hold Assy ( HP Milky Way Fixed Stand ) 24-1 Release Button (POM/Jack Black(6009-0337))(HP MW Fixed Stand P24 G4) 24-2 Hinge Hold(SGCC 2.0t)( HP Milky Way Fixed Stand )
  • Page 19 23.8 LCM milky way (ES 8.0)change fixed base MAC. SCREW-MI M4.0*10 ,Blk-Zn TAP.SCREW-T1 M2.0*3.0L,NI MAC.SCREW-PH-LWM4*6L NI FRONT DECO(ABS 94-HB/Jack Black(6009- 0337))(HP Milky Way P24h G4) MYLAR BLACK(40*26*0.3t) MAC. SCREW-MRF M3.0*6.0L, BLK-Ni MAIN BD ASS'Y HP MilkyWay fixed stand P24 G4 (LM238WF2-RSAU1)
  • Page 20 0337))( HP Milky Way ) 20-4 LENS(PC122/TRANSPARENT)(HP Milky Way ) 20-5 SPK COVER(ABS 94-HB/Jack Black(6009- 0337))(HP Milky Way ) Hinge Hold Assy ( HP Milky Way Fixed Stand ) 21-1 Hinge Hold(SGCC 2.0t)( HP Milky Way Fixed Stand ) 21-2 TAP. SCREW-TF #3.0*6.0L,Ni 21-3...
  • Page 21: How To Order Parts

    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 your computer, go to http://partsurfer.com, select your country or region, and then follow the on-screen instructions.
  • Page 22: Removal And Replacement Procedures

    Removal and replacement procedures Adherence to these procedures and precautions is essential for proper service. Preparation for disassembly Use this information to properly prepare to disassemble and reassemble the monitor. 1) Read the “Important safety information” and “Important service information and precautions” sections in the “Getting started”...
  • Page 23 P22h G4 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. Push up the black button 2. Twist out the screw and separate base and stand.
  • Page 24 Dismantle the rear cover first from the marked position...
  • Page 25 Strip seven screws from the rear cover and shielding. 5. Remove the acetate tapes and aluminum tape from the LVDS/ LED/KP cable. 6. Pull out the LVDS/ LED/KP cable to panel. Take down the shielding from big rear cover.
  • Page 26 8. Remove deco from the monitor. Remove the acetate tape and mylar from MB.
  • Page 27 10. Pull out the LVDS/ LED/KP cables to MB; pull out the MB to PB cable to MB and power board. 11. Strip ten screws from the shielding.
  • Page 28 12. Take out MB and power board from the shielding.
  • Page 29 P24h G4 / P27h G4 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. Push up the black button 2. Twist out the screw and separate base and stand. Twist out the screw 3.
  • Page 30 Dismantle the rear cover first from the marked position...
  • Page 31 Strip eleven screws from the rear cover 、shielding and speaker. 5. Remove speaker 、the acetate tapes and aluminum tape from the LVDS/ LED/KP cable. 6. Pull out the LVDS/ LED/KP cable to panel. Take down the shielding from big rear cover.
  • Page 32 8. Remove deco from the monitor. Remove the acetate tape and mylar from MB.
  • Page 33 10. Pull out the LVDS/ LED/KP/Speaker cables to MB; pull out the MB to PB cable to MB and power board. 11. Strip ten screws from the shielding.
  • Page 34 12. Take out MB and power board from the shielding. P22 G4/P24 G4 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.
  • Page 35 Push up the black button 2. Push down the hook and separate base and stand. Push down the hook 3. Move rear cover follow the below way and remove the small lid.
  • Page 36 Dismantle the rear cover first from Remove the small lid from the the marked position marked position...
  • Page 37 Strip nine screws from the rear cover and shielding. 5. Remove the acetate tapes and aluminum tape from the LVDS/ LED/KP cable. 6. Pull out the LVDS/ LED/KP cable to panel. Take down the shielding from big rear cover.
  • Page 38 8. Remove deco from the monitor. Remove the acetate tape and mylar from MB.
  • Page 39 10. Pull out the LVDS/ LED/KP cables to MB; pull out the MB to PB cable to MB and power board. 11. Strip ten screws from the shielding.
  • Page 40: Connector Repair

    12. Take out MB and power board from the shielding. Connector repair This procedure includes VGA, HDMI, DP, phone jack connectors. The connectors are on the main board. The connectors identifiers are as follows: Connector Location P101 HDMI P200 Display port P300 Audio phone jack...
  • Page 41 P22h G4 P300 P200 P101 P24h G4 P300 P200 P101...
  • Page 42 P27h G4 P200 P300 P101 P22 G4 P101 P300 P200...
  • Page 43: Vga P101

    P24 G4 P101 P300 P200 Before repairing connectors, follow these steps: ▲ Prepare the monitor for disassembly. See Preparation for disassembly on page 22. VGA P101 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 44: Hdmi Connector P300

    HDMI connector P300 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.
  • Page 45: Function Test

    Function test After repair, be sure to confirm that all functions are working. Table 4-1: Function test Test item Operating description Operating description Tool used Tool used VGA test Confirm whether image displays and sound plays Computer or DVD player correctly on the monitor.
  • Page 46 Image appears Brightness is too low. Open the OSD menu and blurred, select Brightness to adjust indistinct, or too the brightness scale as dark. needed. Check Video Monitor video cable is disconnected. Connect the appropriate Cable is displayed video signal cable between on screen.
  • Page 47: Index

    Index components RC removal, 22 front, 7 rear components, 8 rear, 8 removal connector repair, 40 RC, 22 removal and replacement procedures, 22 features, 6 firmware updates, 5 returning to customer, 5 front components, 7 RoHS (2002/95/EC) requirements, 5 function test, 45 safety information, 4 HDMI connector location, 8 serial number location, 9...

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