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Support and troubleshooting

The following table lists possible problems, the possible cause or each problem, and the recommended solutions.

Table 4-2:

Solving common problems

Problem

Possible Cause

Solution

Screen is blank or

video is flashing.

Power cord is disconnected.

Connect the monitor power cord.

Power button is turned off.

Press the monitor power button.

NOTE:

If pressing the power button has no effect, press

and hold the power button for 10 seconds to disable

the power button lockout feature.

Computer power is turned off. Turn on power to the computer.

Video cable is not connected.

Connect the DisplayPort video cable between the

computer and monitor. Be sure the computer power is off

while you connect the video cable.

System is in sleep mode.

Press any key on the keyboard or move the mouse to

exit sleep mode.

Video card is incompatible.

Replace the video card or connect the DisplayPort

cable to the computer’s onboard DisplayPort.

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.

Input Signal Not Found

displayed on screen.

Monitor video

cable is

disconnected.

Connect the DisplayPort video cable between the

computer and monitor. Be sure that the computer power

is off while you connect the video cable.

No video signal.

Be sure the computer has sent out a video signal.

Input Signal Out of Range

is displayed on screen.

Video resolution and/or

refresh rate are set higher

than what the monitor

supports.

Change the settings to a supported setting.

The monitor is off but it did

not seem to enter into

sleep mode.

The monitor's power

saving control is

disabled.

Open the OSD menu and select

Power Control

Auto-Sleep Mode

and set auto-sleep to

OSD Lockout

is displayed. The monitor's OSD

Lockout function is

enabled.

Press and hold the Menu button on the monitor bezel for

seconds to disable the OSD Lockout function.

Power Button Lockout

displayed.

The monitor's power

button lockout function

is enabled.

Press and hold the monitor power button for seconds to

disable the power button lockout function.

Содержание L7014

Страница 1: ...Maintenance and Service Guide L7014 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 Firs...

Страница 3: ...ng the repaired product to the customer 2 2 Monitor features 3 Features 3 Front components 4 Rear components 4 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 RC 10 Connector repair 13 AC SOCKET CN1 15 Micro USB CN102 15 DP connector CN501 16 Function test 16 Support and troubles...

Страница 4: ......

Страница 5: ...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 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...

Страница 7: ...nd Play capability if supported by your operating system Security cable slot provision on rear of monitor for optional security cable On screen display OSD adjustments in several languages for easy setup and screen optimization HP Display Assistant for adjusting monitor settings and enabling theft deterrence feature refer to the HP Display Assistant User Guide on the optical disc included with you...

Страница 8: ...s Component Function 1 USB 2 0 Type B upstream port touch monitors only Connects a USB cable from the computer to the monitor required fortouch functionality 2 DisplayPort Connects the DisplayPort cable from the monitor to the computer 3 DC power connector Connects the power cable from the 12 V powered USB port on thecomputer or the external power supply to the monitor 4 Mini USB port This port is...

Страница 9: ...nction buttons press any of thebuttons so that the button labels appear on the screen 2 4 Function buttons Use these buttons to navigate through the OSD The navigation indicators next to thebuttons will appear on the screen when the OSD is open NOTE You can reconfigurethe Function buttons in the OSD to quickly select the mostcommonly used operations ...

Страница 10: ... number and product number The serial number and product number are located on a label on the rear of the display head You may need these numbers when contacting HP about the monitor model For worldwide models except India ...

Страница 11: ...tion and table Item Part No 1 PANEL 2 KEY_POWER 3 REAR_COVER L10WT Yhp5 s5 4 LENS_POWER 5 SPONGE 6 MAINFRAME 7 MAIN BOARD CBPCGDRHPQ1 8 SHIELD_MAINBOARD No Description 9 KEY BOARD S1 Screw key board rear cover 10 KEY S2 Screw MAIN BOARD SHIELD 11 KEY BOARD S3 0Q1G 930 5120 SHIELD MAINFRAME ...

Страница 12: ...B CN102 RS 629105150521 Wurth Elektronik DisplayPort CN501 Farnell DP1RD20JQ1R400 JAE AC SOCKET CN1 Digi Key PJ 096H 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 can purchase cables from the HP part store at https partsurfer hp com Search aspx NOTE...

Страница 13: ...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 14: ...sassembly See Preparation for disassembly on page 9 Step Figure Description Remove the screws Remove the screws to remove the rear cover Remove the rear cover Remove the rear cover Don t scratch the four corners Remove the the tapes and the pins Remove the tapes and the pins ...

Страница 15: ...11 Remove the screws to remove the shield_mainboard Remove the screws to remove the shield_mainboard Remove the pins Remove the pins Remove the screws Remove the screws ...

Страница 16: ...12 Remove the screws and the tapes to remove the mainframe Remove the screws and the tapes to remove the mainframe The mainframe The mainframe Panel Panel ...

Страница 17: ...e screws to remove the key boards Connector repair This procedure includes Micro USB DisplayPort and AC Socket The connectors are on the main board board part number CBPCGDRHPQ1 The connectors identifiers are as follows Connector Location MICRO USB CN102 DisplayPort CN501 AC SOCKET CN1 ...

Страница 18: ...s requested Repairing with conventional lead wire may cause damage Work quickly to avoid overheating the circuit board as soon as you confirm the steady soldering 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 ...

Страница 19: ... AC Socket connector from the PCB 3 Place the new component on the PCB Be sure that it matches the PCB footprint 4 Solder the new component Micro USB CN102 Repair the USB 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 USB connector from the PCB 4 Place the new component on the P...

Страница 20: ...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 D SUB test Confirm whether image displays and sound plays ...

Страница 21: ...ars blurred indistinct or too dark Brightness is too low Open the OSD menu and select Brightness to adjust thebrightness scale as needed Input Signal Not Found is displayed on screen Monitor video cable is disconnected Connect the DisplayPort video cable between the computer andmonitor Be sure that the computer power is off while you connect the video cable No video signal Be sure the computer has...

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