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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 power cord.

Monitor is off.

Power the 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.

Video cable is improperly connected.

Connect the video cable
properly.

System is in Sleep mode.

Press any key on the
keyboard 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
blurred,
indistinct, or too
dark.

Brightness is too low.

Open the OSD menu and
select Brightness to adjust
the brightness scale as
needed.

Check Video
Cable is
displayed on
screen.

Monitor video cable is disconnected.

Connect the appropriate
video signal cable
between the computer and
monitor. Be sure that the

Содержание Z38c

Страница 1: ...Maintenance and Service Guide Z38c model ...

Страница 2: ...SUMMARY This guide provides information about spare parts removal and replacement of parts diagnostic tests problem troubleshooting and more ...

Страница 3: ...d 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 Fir...

Страница 4: ......

Страница 5: ...3 2 Monitor features 4 Features 4 Front components 5 Rear components 6 Locating the serial number and product number 8 3 llustrated parts catalog 10 How to order parts 11 4 Removal and replacement procedures 13 Preparation for disassembly 13 RC 14 Power board 17 Connector repair 18 Audio connector M1 19 HDMI connector J2 19 DP connector J3 20 USB connector J4 21 USB connector J5 22 Function test 2...

Страница 6: ......

Страница 7: ...y Always use approved tools and test equipment for servicing Never assume the product s power is disconnected from the main power supply Check that it is disconnected before opening 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 dis...

Страница 8: ... electrical equipment in the Member States where the repairer operates Reference to an official registration system as professional repairer where such a system exists in the Member States shall be accepted as proof of compliance 2 A professional repairer must have insurance that covers liabilities resulting from repairs regardless of whether required by the Member State RoHS 2002 95 EC requiremen...

Страница 9: ...ore 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 Do not use a line isolation transformer during this check Measurements that are not within specified limits present a possible shock hazard You must check and repair the product before returning it to th...

Страница 10: ...ptimization HP Display Assistant software for adjusting monitor settings and enabling theft deterrence features HDCP High bandwidth Digital Content Protection used on digital inputs In select regions software and documentation optical disc provided with the monitor in select regions that includes monitor drivers and product documentation VESA mounting bracket for attaching the monitor to a wall mo...

Страница 11: ...Front components and their descriptions Component Function 1 Menu button Press to open the OSD menu select a menu item from the OSD or close the 2 Function buttons Use these buttons to navigate through the OSD menu based on the 3 Power button Press to turn the monitor on or off When the monitor is on the power light ...

Страница 12: ...ld the lowest power 2 Power connector Connects AC power 3 HDMI port Connects an HDMI cable to the source device 4 Display Port Connect Display Port cable to the source device 5 Audio out headphone jack Connects optional powered stereo speakers headphones earbuds a Head set or a television audio cable 6 USB Type A ports 2 Connects a USB device 7 Security cable slot Connects a security cable to a st...

Страница 13: ...7 9 USB Type C port upstream Connects a USB Type C cable to the source device ...

Страница 14: ...label 2 are 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 For worldwide models except India Barcode label Spec label For India Bar code label Spec label ...

Страница 15: ...9 ...

Страница 16: ...rt name q ty 1 HP LOGO 18mm 1 2 Z38C DECO COVER 1 3 37 5 LG PANEL 1 4 Z38C MIDDLE FRAME 1 5 Z38C PANEL BKT L 1 6 Z38C PANEL BKT R 1 7 Z38C POWER BOARD 1 8 Z38C MAIN BOARD 1 9 Z38C SIDE BOARD 1 10 Z38C MAINFRAME 1 11 Z38C RELEASE BUTTON 1 12 Z38C TOP VENT COVER 1 13 SPRING 2 14 Z38C BACKPACK 1 15 HP LOGO 100mm 1 ...

Страница 17: ...key com Capacitors by distributor Component description Location Component distributor Distributor part number Capacitor 470uF 20 25V 10 12 2000hr 1490mA C9218 and C952 Farmell A750MS477M1EAAE015 470uF 20 25V 10 12 5000hr 1600mA C9216 C9217 C9222 C954 RS EEUFR1E471 Connectors by manufacturer Component description Location identifier Component distributor Distributer part number HDMI J2 DK A35071TR...

Страница 18: ...onnector 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 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 ...

Страница 19: ...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 20: ...ssembly on page 13 Remove the RC Step Figure Description Remove the HINGE ASS Y Put the monitor face down on a matched cushion Press the button to remove HINGE ASSY Remove the REAR_COVER Remove screws and open the latches with tool to remove rear cover Remove main frame Remove the Screws Disconnect the cables ...

Страница 21: ...separate the MIDDLE FRAME and PANEL Separate main frame Open the latches with tool and press the button to remove rear cover Remove the MAIN BOARD and POWER BOARD Remove the screws and disconnect the connectors to remove the MAIN BOARD and POWER BOARD ...

Страница 22: ...16 The panel The panel ...

Страница 23: ... Before removing the power board follow these steps Prepare the monitor for disassembly See Preparation for disassembly on page 13 Remove the power board 1 The HP Z38c power board connector position is as follows 2 Locate the part number location on the board ...

Страница 24: ...ition Connector repair is only for out of warranty 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 meets ROHS please use Lead free solder wire for soldering If Connector need to replace must check specification and part number whether match the BOM and location...

Страница 25: ...e regulations for repairers of electrical equipment in the Member States where it operates Reference to an official registration system as professional repairer where such system exists in the Member States concerned shall be accepted as proof of compliance with this point 2 The professional repairer is covered by insurance covering liabilities resulting from its activity regardless of whether thi...

Страница 26: ...r gun to melt the solder on the pins 3 Lift the J2 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 DP connector J3 Repair the DP connector 1 Use a soldering iron and a desoldering pump to remove as much solder as possible from the pin ...

Страница 27: ...mponent USB connector J4 Before removing the USB connector follow these steps Prepare the monitor for disassembly See Preparation for disassembly on page 13 Remove the USB 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 J4 out of the through holes ...

Страница 28: ...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 Functi...

Страница 29: ...ower button lockout feature Video cable is improperly connected Connect the video cable properly System is in Sleep mode Press any key on the keyboard 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 blurred indistinct or too dark Brightness is too low Open th...

Страница 30: ... 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 On On Screen Menus are Locked is displayed The monitor s OSD lock function is enabled Press and hold the Menu button on the front bezel to 10 seconds to disable the OSD lockout function Power Button is Locked is Displayed The monitor s power button is locked P...

Страница 31: ...25 ...

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