Maintenance and Service Guide X27c model SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.
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Table of Contents 1 Getting started............................................................................................................................................... 2 Important safety information ................................................................................................................... 2 Important service information and precautions ....................................................................................... 2 RoHS (2002/95/EC) requirements .................
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 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.
near pin. ● Do not get the board wet. Water and moisture can cause a short circuit that causes malfunctions. ● To avoid damage, be sure to use lead-free solder. ● When soldering, work quickly to avoid overheating the circuit board. ● Keep the soldering iron tip clean and well tinned when replacing parts. ● After repair, perform a close inspection of the circuit board to confirm it is in good condition. ● After repair, perform a function test to confirm the power supply is working properly.
2 Monitor features This chapter provides an overview of the monitor’s features.
Front components To identify the components on the front of the monitor, use this illustration and table. Table 1-1: Front components and their descriptions Component 5 Function If the OSD menu is open, press to confirm selection. If the OSD menu is closed, press to open the OSD menu. If the OSD menu is close, switches the monitor’s input source to the next active input. If the OSD menu is close, press to open the information menu at HDMI, or to perform auto adjustment at VGA.
Rear components To identify the components on the rear of the monitor, use this illustration and table. Table 1-2: Rear components and their descriptions Component 6 Function 1 Power connector Connects the power cord 2 HDMI port Connects an HDMI cable from the monitor to a source device such as a computer. 3 DisplayPort in connector Connects the DisplayPort cable from the monitor to a source device such as a computer. 4 Headphone jack Connect the headphone to the monitor.
Locating the serial number and product number The SPEC label is located on the rear of the monitor. The serial number and product number are located on a Safety label. You may need these numbers when contacting HP about the monitor model.
3 Illustrated parts catalog To identify the monitor major components, use this illustration and table. 1 2 S1 3 S2 4 S3 5 S4 6 S5 7 S7 8 S6 9 10 11 12 13 8 Item Description Qty 1 DECO_BEZEL L27WR-Dblc1hp-p12 1 2 LENS_POWER 1 3 PANEL 1 4 MIDDLE_FRAME L27WR-Dblc1hp-p12 1 5 INSULATING SHEET 34.
S3 QM1G38400601200ARA 1 S4 0D1G1030 6120 2 S5 0M1G3030 4120 2 S6 0Q1G 930 5120 1 S7 0M1G2940 10 47 CR3 4 How to order parts The HP authorized repair center can purchase the power board from HP.
https://www.eetgroup.com/en-eu/ NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your product, go to https://partsurfer.hp.com/Search.aspx, select your country or region, and then follow the on-screen instructions.
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 and reassemble the monitor. 1) Read the “Important safety information” and “Important service information and precautions” sections in the “Getting started” chapter of this guide. 2) Clean the room for disassembly. 3) Identify the disassembly area.
1) Remove four screw from the rear case. 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. 4) Disassemble Rear Cover. 5) Remove the key board wire from the Interface-board.
6) Disassemble the Key board and LED board from the Rear Cover (if required). 7) Tear off the tapes. 8) Remove 2 screws from the main frame. 9) Remove 2 screws from bracket 10) Disassemble 5 screws from the board. 11) Disassemble all the boards from housing.
12) Disconnect all the wires from the board. Power board The power board part number is PLPCKH362UQA1 (1st source) or PLPCKH362UQA2 (2nd source). Before removing the power board, follow these steps: ▲ Prepare the monitor for disassembly. See Preparation for disassembly on page 11. Remove the power board: 1) The HP X27c power board connector position is as follows: Warning: After unplugging the power supply, the capacitance is still charged, do not touch and discharge the capacitor.
Connector repair This procedure includes HDMI, DisplayPort and Audio connectors. The connectors are on the main board (board part number CBPC1A8HPQ1) The connectors’ identifiers are as follows: Connector Location HDMI CN501 DisplayPort 1 CN551 Audio CN601 MAIN BOARD CN501 CN551 CN601 Before repairing connectors, follow these steps: ▲ Prepare the monitor for disassembly. See Preparation for disassembly on page 11. IMPORTANT: • Repair Condition: Connector repair is only for out of warranty.
condition. • Keep the soldering iron tip clean and well tinned and when replacing parts. • A close inspection of the circuit board revealed look in good condition. • After repaired, must connect source to each port to check Main board function is ordinary.
2) Use a hot air gun to melt the solder on the pins. 3) Lift the CN551 connector from the circuit board. 4) Place the new component on the circuit board. Be sure that it matches the footprint. 5) Solder the new component. Audio Connector CN601 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 CN601 connector from the circuit board.
Function test After repair, be sure to confirm that all functions are working. Table 4-1: Function test Test 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.
blurred, indistinct, or too dark. Check Video Cable is displayed on screen. Monitor video cable is disconnected. Input Signal Out of Range is displayed on screen. The monitor does not enter into a low-power sleep state. “OSD Lockout” is displayed Video resolution and/or refresh rate are set higher than what the monitor supports. Power Button is Locked is Displayed The monitor's Power Button Lockout function is enabled. The monitor's power saving control is disabled.
Index components front, 5 rear, 6 connector repair, 15 features, 4 firmware updates, 3 front components, 5 function test, 18 how to order parts, 9 illustrated parts catalog, 8 parts, 8 parts, ordering, 9 power board removal, 14 precautions, 2 preparation for disassembly, 11 20 RC removal, 12 rear components, 6 removal power board, 14 RC, 12 removal and replacement procedures, 11 returning to customer, 3 RoHS (2002/95/EC) requirements, 3 safety information, 2 serial number location, 7 service information,