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13

Power board

The power board part number is ADPCJ1903AA2

Before removing the power board, follow these steps:

▲

Prepare the monitor for disassembly. See Preparation for disassembly on page 9.

Remove the power board:

1) The HP P27q G4 power board connector position is as follows:

2) Locate the part number location on the board.

Warning:

After unplugging the

power supply, the capacitance
is still charged, do not touch
and discharge the capacitor.

CN902

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Содержание P27q G4

Страница 1: ...Maintenance and Service Guide P27q G4 model SUMMARY This guide provides information about spare parts removal and replacement of parts diagnostic tests problem troubleshooting and more ...

Страница 2: ...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 First...

Страница 3: ...red product to the customer 2 2 Monitor features 3 Features 3 Front components 4 Rear and side components 5 Locating the serial number and product number 6 3 Illustrated parts catalog 7 How to order parts 8 4 Removal and replacement procedures 9 Preparation for disassembly 9 Rear Cover 10 Power board 13 Connector repair 14 HDMI connector CN503 15 D SUB connector CN101 16 Function test 16 Support a...

Страница 4: ...pening 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...

Страница 5: ...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...

Страница 6: ...el from landscape to portrait mode Swivel and height adjustment capabilities Removable stand for flexible monitor panel mounting solutions VGA video input One HDMI High Definition Multimedia Interface video input cable provided 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 adjustment...

Страница 7: ...D menu is open the Menu light turns on 2 OSD buttons assignable When the OSD menu is open press the buttons to navigate through the menu The function light icons indicate the default button functions For a description of thesefunctions see Using the function buttons on page 15 You can reassign the function buttons to quickly select the most commonly usedoperations See Reassigning the function butt...

Страница 8: ...able Table 1 1 Rear components Component Function 1 Power connector Connects the power cord 2 HDMI port Connects the HDMI cable to a source device such as a computer or game console 3 VGA port Connects the VGA cable to the source device 4 Security cable slot Connects an optional security cable to the monitor ...

Страница 9: ...cating the serial number and product number The serial number and product number are located on a label on the rear of the monitor panel You may need these numbers when contacting HP about the monitor model ...

Страница 10: ...E_FRAME 1 3 LENS L238W Zat4 s4 1 4 LED BOARD 1 5 ADAPTER BOARD NA 1 6 MAIN BOARD 1 7 MAINFRAME 1 8 KEY BOARD 1 9 REAR_COVER L27W Zat10 p12 1 10 BASE_ASS Y L27W Zat10 p12 NA 1 11 stand ass y L27W Zat10 p12 NA 1 12 BKT_VESA 2 13 INSULATING SHEET 1 14 INSULATING SHEET 1 S1 SCREW 3 4 11 S2 SCREW 6mm 1 S3 SCREW D3 6 5 S4 SCREW 3 S5 SCREW M4 10 4 ...

Страница 11: ...RZW471M1EBK 1016S Connectors by manufacturer Component description Location identifier Component distributor Distributer part number D SUB CN101 tme HDL15 SL B ADAM TECH HDMI CN503 RS SD 47151 001 Molex NOTE Rear cover and chassis need to be modified to hold connector Connector may need modifications to meet functional safety and regulatory requirements accordingly if it doesn t match exactly You ...

Страница 12: ...ce information and precautions sections in the Getting started 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 Screw...

Страница 13: ...disassembly on page 9 Remove the Rear Cover 1 Remove the screws to remove the stand base assy 2 Use your fingers to split the left and right sides apart between the middle frame and rear case 3 Insert the scraper bar tool into the gap between the middle frame and rear case and then rotate The hook opens Repeat the steps ...

Страница 14: ...11 4 Disassemble Rear Cover 5 Tear off the tapes Remove 3 screws to remove the LED board 6 Remove 11 screws to disassemble the middle frame and Panel Disconnect the pins ...

Страница 15: ...7 Remove the mylar 8 Remove 5 screws to remove the Main Board and Power Board 9 Remove 4 screws to remove the Key Board 10 Disassemble all the boards from housing 11 Disconnect all the wires from the board ...

Страница 16: ...e monitor for disassembly See Preparation for disassembly on page 9 Remove the power board 1 The HP P27q G4 power board connector position is as follows 2 Locate the part number location on the board Warning After unplugging the power supply the capacitance is still charged do not touch and discharge the capacitor CN902 ...

Страница 17: ...BOM and location If connector need to replace please insert new parts carefully because the near pin may cause short circuit by inappropriate operate DO NOT allow any liquid on the board Water and moisture may cause short circuit to the electronic components and lead to malfunctions The fusion point of Lead Free solder is requested Repairing with conventional lead wire may cause damage Work quickl...

Страница 18: ...of of compliance with this point 2 The professional repairer is covered by insurance covering liabilities resulting from its activity regardless of whether this is required by the Member State HDMI connector CN503 Repair the HDMI 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 C...

Страница 19: ...ns are working Table 4 1 Function test Te st item Operating description Tool used HDMI test Confirm whether image displays and sound plays 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 Table 4 1 Fun...

Страница 20: ...s on board video sources Image appears blurred indistinct or too dark Brightness setting is too low Open the OSD menu and select Brightness to adjust thebrightness scale as needed Check Video Cable is displayed on the screen Monitor video cable is disconnected Connect the appropriate video signal cable between the computer and monitor Be sure that the computer power is offwhile connecting the vide...

Страница 21: ...rts 7 parts ordering 8 power board removal 13 precautions 1 preparation for disassembly 9 RC removal 10 rear components 5 removal power board 13 RC 10 removal and replacement procedures 9 returning to customer 2 RoHS 2002 95 EC requirements 2 safety information 1 serial number location 6 service information 1 spare parts 7 support and troubleshooting 17 troubleshooting 17 ...

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