Page 1
Maintenance and Service Guide E22 G4 model SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.
Page 2
Product notice © Copyright 2021 HP Development Company, L.P. Only trained service personnel familiar with this product should service it. Before performing any AMD is a trademark of Advanced Micro mai...
Page 3
Table of Contents 1. Getting started ......................................................................................................................................................................
Page 5
1. 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 documen...
Page 6
● If you must replace a capacitor, insert new parts carefully to avoid a short circuit caused by the near pin. ● Do not get the board wet. Water and moisture can cause a short circuit that causes malf...
Page 7
product before returning it to the customer.
Page 8
2. Monitor features This chapter provides an overview of the monitor’s features. Features Depending on the model, your monitor might include the following features: 54.6 cm (21.5 in) diagonal viewable...
Page 9
Front components To identify the components on the front of the monitor, use this illustration and table. Press the power button on the bottom of the monitor to turn it on.
Page 10
Rear components To identify the components on the rear of the monitor, use this illustration and table. Table 1-1: Rear components and their descriptions Component Function 1 Security cable slot Conne...
Page 11
Locating the serial number and product number Depending on the product, the serial number and product number are located on a label on the rear of the monitor or on a label under the front bezel of th...
Page 12
3. Illustrated parts catalog To identify the monitor major components, use this illustration and table. item part name q'ty 1 HP LOGO 1 2 DECO 1 3 LENS POWER 1 4 PANEL 1 5 MYLAR 1 6 POWER BOARD 1 7 SC...
Page 13
14 RELEASE BUTTON 1 15 KEY BOARD 1 16 KEY BUTTON 1 17 REAR COVER 1 18 HP LOGO 1 19 SPEAKER COVER 1 20 STAND 1 21 BASE 1 S1 SCREW M3 X6 5 S2 SCREW M4 X6 1 S3 SCREW M3 X4 11 S4 SCREW Q3 X4 3 S5 SCREW M4...
Page 14
D-SUB CN503 DK WM12594-ND HDMI CN502 DK SAM14939TR-ND SAM14939CT-ND SAM14939DKR-ND (HDMR-19-02-S-SM-TR) DP CN501 DK WM19271TR-ND WM19271CT-ND WM19271DKR-ND (0472720001) NOTE: Rear cover and chassis ne...
Page 15
4. 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...
Page 16
Remove the Rear cover: Step Figure Description Remove the hinge assy by Remove the press the HINGE ASS'Y hook on the rear cover . Remove the Remove the rear rear cover cover screws by the screwdriver....
Page 17
disconnect the connectors Disconnect the connecters Remove the mylar Tear out all tapes and disconnect the connectors by hand
Page 18
Remove the power board Remove the screws by the screwdriver Remove the Remove the main screws by the board screwdriver Remove the hex screws by the hex screwdriver Remove the Remove the USB screws by ...
Page 19
Remove the screws by the Remove the middle screwdriver frame PANEL Power board The power board part number is PLPCJB391GQA3 . Before removing the power board, follow these steps: ▲ Prepare the monitor...
Page 20
Connector repair This procedure includes HDMI, Display Port , USB and VGA connectors. The connectors are on the main board (board part number CBPCNA6H0FD). The connectors identifiers are as follows: C...
Page 21
• Repairing must operate by professional repairers (Note) in repair center, not applicable for end user. • Electrostatic protection is required when component replacement is required. • The monitor me...
Page 22
USB 3.0 TYPE A CN103 Repair the audio 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...
Page 23
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 CN502 connector from the PCB. 4) Place...
Page 24
3) Lift the CN501 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. Function test Table 4-1: Function test Test ite...
Page 25
or move the mouse to exit Sleep mode. Video card is incompatible. Open the OSD menu and select the Input Control menu. Set Auto-Switch Input to Off and manually select the input Image appears Brightne...