Dell P2723QE Bedienungsanleitung
Service Manual
1
Service Manual
LCD Monitor
P2723QE
Service Manual
2
Service Manual Versions and Revision
No. Version Release Date Revision
1
1.0
2022/02/14
Initial Release
Service Manual
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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.
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2. Exploded view diagram with list of items
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NOTE:
For replacement of power cord, connectivity cable and external power supply (if applicable), 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.
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3. Wiring Connectivity Diagram
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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.
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Service Manual
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5. Disassembly Procedure
1. Remove Rear Cover Screw
Remove screws “1~4” on rear cover with electric
screwdriver. Torque: 12.0 ± 0.5Kgf/cm
4. Remove Keypad:
a. Remove keypad cable in sequence of “1, 2, 3”
b. Remove screws “5, 6” with electric screwdriver.
Screwdriver torque: 2.5 ± 0.5 Kgf/cm
c. Separate keypad and rear cover
2. Remove Rear Cover 1:
Panel side down, remove rear cover with both
hands in sequence of “1->2->3”, then “1->4->5->6”
5. Remove Light Bar and USB Cable:
a. Remove acetate tape “1”, grasp on pin, then
remove light bar cable horizontally
b. Remove aluminium foil “2”, lift up USB pin cover,
then remove USB cable
3. Remove Rear Cover 2:
a. Set up rear cover, remove mylar “1”
b. Remove keypad cable “2”
c. Remove light bar “3”
6. Remove Chassis and USB Board Screws：
a. Remove chassis screws “1~4” and USB board screw
“5” with electric screwdriver. Torque: 3.5 ±
0.5Kgf/cm
b. Remove USB board
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