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  Service Manual

 

 

1.

 

Important Safety Notice 

Product Announcement:   
This product is certificated to meet RoHS 
Directive and Lead-Free produced definition. 
Using approved critical components only is 
recommended when the situation to replace 
defective parts. Vender assumes no liability 
express or implied, arising out of any 
unauthorized modification of design or 
replacing non-RoHS parts. Service providers 
assume all liability.   
 
Qualified Repairability: Proper service and 
repair is important to the safe, reliable 
operation of all series products. The service 
providers recommended by vender should be 
aware of notices listed in this service manual in 
order to minimize the risk of personal injury 
when perform service procedures. 
Furthermore, the possible existed improper 
repairing method may damage equipment 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 away from water or 
expose in extremely high humility environment.   
! To ensure the continued reliability of this 
product, use only original manufacturer’s 
specified parts.   
! To ensure following safety repairing behavior, 
put the replaced part on the components side 

of PWBA, not solder side.   
! To ensure using a proper screwdriver, follow 
the torque and force listed in assembly and 
disassembly procedures to unscrew screws.   
! Using Lead-Free solder to well mounted the 
parts.   
! The fusion point of Lead-Free solder 
requested in the degree of 220°C. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

Содержание E2223HN

Страница 1: ...Service Manual 1 Service Manual LCD Monitor E2223HN ...

Страница 2: ...Service Manual 2 Service Manual Versions and Revision No Version Release Date Revision 1 1 0 2022 01 26 Initial Release ...

Страница 3: ...er repairing method may damage equipment 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 pow...

Страница 4: ...able contact Dell 1 Go to https www dell com support 2 Verify your country or region in the Choose A Country Region drop down menu at the bottom right corner of the page 3 Click Contact Us next to the country dropdown 4 Select the appropriate service or support link based on your need 5 Choose the method of contacting Dell that is convenient for you ...

Страница 5: ...Service Manual 5 3 Wiring Connectivity Diagram ...

Страница 6: ...rvice Manual 6 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 ...

Страница 7: ...over a Pry off the back cover of the machine with the aid of the dismantling fixture in the sequence of Bottom Left Right Top 5 Remove Chassis Screw a Remove screws 1 2 with electric screwdriver b Torque 3 5 0 5Kgf cm Phillips screwdriver b Remove Light Bar and Keypad Cable a Remove acetate cloth tape marked with 1 then remove light bar grasp on Pin then pull outwards to remove b Remove Keypad cab...

Страница 8: ...rom IF board 11 Remove Components on PI Board 1 a Remove electrolyte capacitor 25mm height squared in red from printed circuit boards b Cut the glue between bulk cap and PCBA with knife ensure cutting path within the glue don t touch bulk cap and PCBA 9 Remove LVDS Cable and Light Bara a Remove light bar from PI board grasp on Pin then pull upwards to remove b Remove LVDS cable from IF board lift ...

Страница 9: ...t all video cables from the monitor This way the computer does not have to be involved 3 Turn on the monitor If the monitor is working correctly it detects that there is no signal and one of the following message appears While in self test mode the power LED remains white NOTE This message also appears during normal operation when the video cable is disconnected or damaged 4 Turn off your monitor ...

Страница 10: ...2 Press and hold Button 4 for about 4 seconds and wait for a pop up menu 3 Use Button 1 or 2 to select the and press to confirm A gray test pattern appears at the beginning of the diagnostic program 4 Carefully inspect the screen for abnormalities 5 Press Button 1 to change the test patterns 6 Repeat steps 4 and 5 to inspect the display in red green blue black white and text screens 7 When in Whit...

Страница 11: ...Service Manual 11 6 Trouble Shooting Instructions Common problems The following table provides general information about common monitor problems you might encounter and the possible solutions ...

Страница 12: ...Service Manual 12 6 Trouble Shooting Instructions ...

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