Dell P2723QE Manuel utilisateur

Service Manual

LCD Monitor

P2723QE

Service Manual

Service Manual Versions and Revision

No. Version Release Date Revision

1.0

2022/02/14

Initial Release

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.

Service Manual

2. Exploded view diagram with list of items

Service Manual

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.

Service Manual

3. Wiring Connectivity Diagram

Service Manual

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.

Service Manual

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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