Dell E2420HS Instructions for use

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Simplified Service Manual
LCD Monitor
E2420HS

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Service Manual Versions and Revision
No.
Version
Release Date
Revision
1
2
1.0
2.0
2020/03/20
2021/03/15
Initial Release
ErP lot 5 additional requirements

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1. IMPORTANT SAFETY NOTICE ............................................................................................................................................................... 4
2. EXPLODED VIEW DIAGRAM WITH LIST OF ITEMS ...................................................................................................................................... 4
3. WIRING CONNECTIVITY DIAGRAM........................................................................................................................................................ 5
4. LIST OF TOOLS /EQUIPMENT .............................................................................................................................................................. 5
5. DISASSEMBLY AND ASSEMBLY PROCEDURES .......................................................................................................................................... 6
6. TROUBLE SHOOTING INSTRUCTIONS ..................................................................................................................................................... 8

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Simplified Service Manual
1. Important Safety notice
2. Exploded view diagram with list of items
E2420HS .pdf

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3. Wiring connectivity diagram
4. List of tools / equipment
1. Philips-head screwdriver
2. Hex-head screwdriver

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5. Disassembly and Assembly Procedures
keypad board* 1
FINAL ASSY *1
Chassis* 1
Power board* 1
CHASSIS ASSY *1
STAND ASSY *1
B A G, PL A ST I C, L 140x
W220* T 0.05mm* 1
BACK COVER ASSY*1
V E SA cover* 1
F ront bezel *1
OSD button*1
FRONT BE ZEL ASSY *1
MY LAR FOR CHASSIS*1
SCREW,F,CROSS,T.T-2*3,BLK* 3
Power button*1
Panel A SS Y *1
DELL Logo*1
Panel * 1
B A CK COV E R * 1
FFC-CABLE*1
SCREW ,P,CROSS M3*6,ZN-CC*
1
BOLT,#4-40x11.8,Ni FOR D-SUB/DVI
CONN.RO*
2
I/F BOARD*1
MY L A R B OT T OM*1
MYLAR FOR PANEL*1
V E SA COV E R ASSY *1
SCREW,I,CROSS,M4*10,BLK-NL
*4
Lable Left*1
SCREW,I,CROSS,M4*4.5,BLACK,NL
HF (NYLOK) *2
LIGHT BAR*1
KEYPAD WIRE*1
LVDS WIRE*1
SCREW ,P,CROSS M3*6,ZN-CC*3
SCREW,PW,CROSS M4X9,Zn-CC*1
SCREW,P,CROSSW/WAS,T3X6,BLACK-ZN) *6
SPEAKER*2
TAPE MYLAR 20x7xT0.1.BLACK*1
FOIL,AL,DOUBLE COND,70*35*T0.07mm*3
FOIL,AL,DOUBLE COND,120*40mm*0.07mm*2
TAPE,ACE,60*20 MM,E232,HF *1
TAPE,W60*L30mm,HH,LP23F6,HF *1
GASKET,L50*W10*H3mm,LP23C3,HF,FOR CQ *1
Note:1. The arrows point out the direction of disassembly.
Disassemble the slot of Back cover from monitor

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FFC-CABLE*1
SCREW ,P,CROSS M3*6,ZN-CC*1
BOLT,#4-40x11.8,Ni FOR D-SUB/DVI
CONN.RO*2
PANEL ASSY
*1
BACK COVER ASSY *1
keypad board* 1
Chassis*1
I /F board*1
Power board*1
panel * 1
CHASSIS ASSY *1
V E SA C OV E R* 1
F ront bezel * 1
FRONT BEZEL ASSY *1
FI NAL ASSY *1
OSD button * 1
STAND ASSY *1
Power button * 1
DELL Logo*1
E2420HS,BRACKET,LE24SF,HF*1
MYLAR FOR PANEL*1
SCREW,F,CROSS,T.T-2*3,BLK* 3
LIGHT BAR*1
KEYPAD WIRE*1
BAG,PL ASTIC,
L 140xW220*T 0.05mm* 1
VESA COVER ASSY *1
E2420HS,MAIN CHASSIS*1
MYLAR FOR CHASSIS BOTTOM*2
MYLAR FOR CHASSIS*1
LVDS WIRE*1
SCREW,I,CROSS,M4*10,BLK-NL*4
LBL,AGENCY*1
SCREW,I,CROSS,M4*4.5,BLACK,NL
HF (NYLOK) *2
SCREW ,P,CROSS M3*6,ZN-CC*3
SCREW,PW,CROSS M4X9,Zn-CC*1
SCREW,P,CROSSW/WAS,T3X6,
BLACK-ZN) *6
SPEAKER*2
LBL,PPID*1
TAPE MYLAR 20x7xT0.1.BLACK*1
FOIL,AL,DOUBLE COND,70*35*T0.07mm*3
FOIL,AL,DOUBLE COND,120*40mm*0.07mm*2
TAPE,ACE,60*20 MM,E232,HF *1
TAPE,W60*L30mm,HH,LP23F6,HF *1
GASKET,L50*W10*H3mm,LP23C3,HF,FOR CQ *1

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6. Trouble shooting instructions

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