Dell P2319H Simplified Service Manual Download Page 18

  6. Trouble Shooting Instructions

The picture does 
not fill the entire 
screen

The picture cannot 
fill the height or 
width of the screen

• Due to different video formats (aspect 

ratio) of DVDs, the monitor may display 
in full screen.

• Run the built-in diagnostics.

NOTE: When choosing HDMI/DisplayPort mode, the Auto Adjust 
function will not be available.

Universal Serial Bus (USB) specific problems

Common 

symptoms

What you 

experience

Possible solutions

USB interface is 
not working

USB peripherals 
are not working

• Check that your monitor is turned On.
• Reconnect the upstream cable to your 

computer.

• Reconnect the USB peripherals 

(downstream connector).

• Switch Off and then turn On the 

monitor again.

• Reboot the computer.
• Some USB devices like external 

portable HDD require higher electric 
current; connect the device directly to 
the computer system.

Super Speed USB 
3.0 interface is 
slow

Super Speed USB 
3.0 peripherals 
working slowly or 
not working at all

• Check that your computer is USB 3.0-

capable.

• Some computers have USB 3.0, USB 

2.0, and USB 1.1 ports. Ensure that the 
correct USB port is used.

• Reconnect the upstream cable to your 

computer.

• Reconnect the USB peripherals 

(downstream connector).

• Reboot the computer.

Wireless USB 
peripherals stop 
working when a 
USB 3.0 device is 
plugged in

Wireless USB 
peripherals 
responding slowly 
or only working as 
the distance 
between itself and 
its receiver 
decreases

• Increase the distance between the 

USB 3.0 peripherals and the wireless 
USB receiver.

• Position your wireless USB receiver as 

close as possible to the wireless USB 
peripherals.

• Use a USB-extender cable to position 

the wireless USB receiver as far away 
as possible from the USB 3.0 port.

Summary of Contents for P2319H

Page 1: ...Version 01 Date 2021 10 29 Service Manual P2319H ...

Page 2: ...ipment or products It is recommended that service engineers should have repairing knowledge experience as well as appropriate product training per new model before performing the service procedures NOTICE To avoid electrical shocks the products should be connected to an authorized power cord and turn off the master power switch each time before removing the AC power cord To prevent the product awa...

Page 3: ...ppropriate service or support link based on your need 5 Choose the method of contacting Dell that is convenient for you Item Description Q ty Remark 1 1 For EMEA Only not for other regions 2 Power BD 1 1 3 4 1 1 5 6 Interface BD 1 1 7 8 1 9 10 11 1 1 12 1 13 1 14 Function key BD Front trim ASSY Middle Frame Chassis Mylar Main Chassis ASSY 1 1 15 1 1 USB BD 16 See NOTE See NOTE Riser ASSY Base ASSY...

Page 4: ...3 Wiring Connectivity Diagram ...

Page 5: ...4 How to connect and disconnect power cable connectivity cable WARNING To change power cable connectivity cable switch off power before unplugging the cable and replugging in required cable Power Button ...

Page 6: ...4 How to connect and disconnect power cable connectivity cable ...

Page 7: ...ve DP cap No 1 4 screw size M4x10 Torque 12 0 5kgfxcm 2 3 2 3 4 1 3 1 2 4 Wedge your fingers between the rear cover and the middle bezel on the corners of the top side of the monitor to release the rear cover then use one hand to press the middle bezel the other hand to pull up carefully the rear cover in order of arrow preference for unlocking mechanisms of rear cover S6 S5 S4 S7 Lift the rear co...

Page 8: ... a Philips head screwdriver to remove 2pcs screws for unlocking the bracket with the panel Push the earing lock and disconnect the LVDS cable from the connector of LCD panel module No 1 2 screw size M3x2 8 Torque 4 5kgfxcm Use a Philips head screwdriver to remove 13pcs screws for unlocking the middle bezel with the unit No 1 11 screw size M3x4 Torque 3 4kgfxcm No 12 13 screw size M1 6x1 7 Torque 0...

Page 9: ...move screws for unlocking the AC power outlet two Remove the interface board and power board from the bracket chassis module carefully and disconnect all the cables Remove the Mylar from the hooks of the bracket Use a Philips head screwdriver to remove six screws for unlocking the circuit board release all the cables from the hooks No 1 5 screw size M3x7 5 Torque 6 0 5kgfxcm No 6 screw size M4x8 T...

Page 10: ... board then connect the cable of the power board to the connector of the interface board Turn over the interface board and locate it into the bracket Use a Philips head screwdriver to tighten six screws for locking the power board and interface board No 1 5 screw size M3x7 5 Torque 6 0 5kgfxcm No 6 screw size M4x8 Torque 6 0 5kgfxcm 3 4 S3 6 2 5 Put the bracket chassis module on the back of LCD mo...

Page 11: ...et chassis base as the picture below shown aluminum foil Take a function key board and a middle bezel then fix the middle bezel with a fixture and locate the function keyboard into the hooks of the bezel Use a Philips head screwdriver to tighten 3pcs screws for locking the function key board with the middle bezel then assemble the middle bezel with the front bezel No 1 3 screw size M2x2 4 Torque 0...

Page 12: ...o the USB board then locate the USB board into the USB hub Stick 1pcs aluminum foil on one side of the USB hub then locate the USB unit into the hook of a rear cover Use a Philips head screwdriver to tighten one screw for locking the USB unit with the rear cover No 1 screw size M3x6 Torque 4 0 5kgfxcm S13 S15 2 3 4 1 L video signal to the monitor ift up the monitor then provide power supply and a ...

Page 13: ...ld appear on screen against a black background if the monitor cannot sense a video signal and is working correctly While in self test mode the power LED remains white Also depending upon the selected input one of the dialogs shown below will continuously scroll through the screen or or 4 This box also appears during normal system operation if the video cable becomes disconnected or damaged 5 Turn ...

Page 14: ...ug the video cable s from the back of the computer or monitor The monitor then goes into the self test mode 3 Press and hold Button 1 on the front panel for 5 seconds A gray screen appears 4 Carefully inspect the screen for abnormalities 5 Press Button 1 on the front panel again The color of the screen changes to red 6 Inspect the display for any abnormalities 7 Repeat steps 5 and 6 to inspect the...

Page 15: ...set the monitor to factory settings Check environmental factors Relocate the monitor and test in another room Missing Pixels LCD screen has spots Cycle p ower O n Off Pixel that is permanently Off is a natural defect that can occur in LCD technology For more information on Dell Monitor Quality and Pixel Policy see Dell Support site at http www dell com support monitors Common problems The followin...

Page 16: ... Lines Screen has one or more lines Reset the monitor to factory settings Perform Auto Adjust via OSD Adjust the Phase and Pixel Clock controls via OSD Perform monitor self test feature check and determine if these lines are also in self test mode Check for bent or broken pins in the video cable connector Run the built in diagnostics When using HDMI DisplayPort input the Pixel Clock and Phase adju...

Page 17: ...o setting in the Display menu OSD Reset the monitor to factory settings No Input Signal when usercontrols are pressed No picture the LED light is white Check the signal source Ensure the computer is not in the power saving mode by moving the mouse or pressing any key on the keyboard Check whether the signal cable is plugged in properly Re plug the signal cable if necessary Reset the computer or vi...

Page 18: ... portable HDD require higher electric current connect the device directly to the computer system Super Speed USB 3 0 interface is slow Super Speed USB 3 0 peripherals working slowly or not working at all Check that your computer is USB 3 0 capable Some computers have USB 3 0 USB 2 0 and USB 1 1 ports Ensure that the correct USB port is used Reconnect the upstream cable to your computer Reconnect t...

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