Samsung SyncMaster EX2220 User manual

LCD-Monitor
Chassis : LS22CLU
Model : EX2220
EX2220X
SERVICEManual
TFT-LCD Monitor Contens
EX2220 / EX2220X
Refer to the service manual in the GSPN (see the rear cover) for the more information.
1. Precautions
2. Product specications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram

Contents
1. Precautions
1-1. Safety Precautions ......................................................................................................... 1-1
1-2. Servicing Precautions..................................................................................................... 1-2
1-3. Static Electricity Precautions .......................................................................................... 1-2
1-4. Installation Precautions .................................................................................................. 1-3
2. Product specications
2-1. Feature & Specications................................................................................................. 2-1
2-2. Spec Comparison to the Old Models.............................................................................. 2-4
2-3. Accessories .................................................................................................................... 2-6
3. Disassembly and Assembly
3-1. Disassembly ................................................................................................................... 3-1
4. Troubleshooting
4-1. Troubleshooting .............................................................................................................. 4-1
4-2. When the Power Does Not Turn On ............................................................................... 4-2
4-3. When the screen is blank ............................................................................................... 4-4
4-4. Error Examples and Actions ........................................................................................... 4-8
4-5. Adjustment...................................................................................................................... 4-9
5. Exploded View & Part List
5-1. Exploded View................................................................................................................ 5-1
5-2. Parts List......................................................................................................................... 5-3
6. Wiring Diagram
6-1. Wiring Diagram - Main Board ......................................................................................... 6-1
6-2. Wiring Diagram - IP Board.............................................................................................. 6-4
6-3. Connector Functions ...................................................................................................... 6-5
6-4. Cables ............................................................................................................................ 6-5

GSPN (Global Service Partner Network)
Area Web Site
North America http://service.samsungportal.com
Latin America http://latin.samsungportal.com
CIS http://cis.samsungportal.com
Europe http://europe.samsungportal.com
China http://china.samsungportal.com
Asia http://asia.samsungportal.com
Mideast & Africa http://mea.samsungportal.com
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© 2010 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea
P/N: BN82-00990A-00

3-1
3. Disassembly and Assembly
3. Disassembly and Assembly
This section describes the disassembly and reassembly sequences for this monitor.
Warning: As this monitor has parts that are sensitive to static electricity, be careful when handling them.
3-1. Disassembly
Caution: 1. Turn the monitor off before beginning the disassembly process.
2. When disassembling the monitor, do not use any metal tools except for the provided jig.
3. Disassemble the monitor carefully as directed in the following procedures.
Description Photo Screws
1. Remove the stand body.
2. ① Turn the monitor over and insert your hands
into the top of the monitor at the center and
separate the front cover in the direction of the
arrow as shown in the gure.
②Separate the sides of the front cover up to the
directed line as shown in the gure.

3-2
3. Disassembly and Assembly
Description Photo Screws
3. Turn the monitor over again .

3-3
3. Disassembly and Assembly
Description Photo Screws
4. Turn the monitor over again to remove the back
cover.
5. Remove the LVDS, LAMP wire and FUNCTION
cable then remove the SHIELD-COVER.
LAMP
WIRE
LVDS
FUNCTION
6. Remove the LCD panel.
7. Remove the four (4) screws shown in the gure.

3-4
3. Disassembly and Assembly
Description Photo Screws
8. Remove the four (4) screws shown in the gure
and remove the Bracket support.
9. Remove the main PCB and IP boards from the
SHIELD-cover.
※The assembly is in the reverse order of disassembly.

5-1
5. Exploded View & Part List
5. Exploded View & Part List
5-1. LS22CLUSF/XF - Exploded View
F001A M0215
M0014
BN63-06705A
R001A
SB01A
SB04A
BN63-06367A
P002A

5-2
5. Exploded View & Part List
5-1-1. LS22CLUSF/XF - Parts List
Location No. Code No. Description & Specication Q’ty SA/SNA Remark
F001A BN96-12854C ASSY COVER P-FRONT;Cobalt 21.5,ABS+PMMA, 1 SA
M0014 BN94-03250A ASSY PCB MAIN;BX2240,LS22CBUABV/EN 1 SA
M0215 BN07-00795A LCD-PANEL;M215HW01 V6,AU21507,6bit Hi-FR 1 SA
P002A BN44-00367A IP BOARD-LED DRIVE;IP-23155B,Cobalt21.5" 1 SA
R001A BN96-12855A ASSY COVER P-REAR;Cobalt 21.5,HIPS,HB,BK 1 SA
SB01A BN96-12853A ASSY STAND P-BODY;COBALT,HIPS,BK23,ETCH 1 SA
SB04A BN96-13094A ASSY STAND P-BASE;COBALT 19N,21.5~24,ABS 1 SA
BN63-06367A SHIELD-LAMP;PLUM 21.5'',SPTE,T0.3 1 SNA
BN63-06705A SHIELD-COVER;Cobalt 21.5,SECC,T0.8,SIMPL 1 SNA

5-3
5. Exploded View & Part List
5-2. LS22CLUSF/XF - Parts List (EX2220X)
Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE)
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
0.1 R001A BN90-02667A ASSY COVER REAR;EX2220,BLACK,texture 1 SNA
..2 R001A BN96-12855A ASSY COVER P-REAR;Cobalt 21.5,HIPS,HB,BK 1 SA
...3 W391 6003-000275 SCREW-TAPTYPE;BH,+,B,M3,L10,ZPC(BLK),S
WR 2 SA
...3 M0113 BN61-01581A BRACKET-VESA;BI17/19BS,SECC,T1.0 2 SNA
...3 T0060 BN61-05331A SPRING ETC;LAVENDER 23",SK5,T0.5 1 SNA
...3 CIS4 BN61-05332A HOLDER-STAND;LAVENDER
23",ACETAL,WHITE 1 SNA
...3 M0111 BN63-05625A COVER-STAND;LAVENDER 23W,BK23 1 SNA
...3 R001 BN63-06702A COVER-REAR;Cobalt 21.5,HIPS,HB,BK23,EX22 1 SNA
...3 BN96-13319A ASSY SHIELD P-LAMP;Cobalt 21.5W,SPTE,T0. 1 SNA
....4 M0131 BN63-00413A GASKET;MB15KO,CONDUCTIVE
FAB,5MM,8MM,8MM 1 SNA
....4 BN63-06367A SHIELD-LAMP;PLUM 21.5'',SPTE,T0.3 1 SNA
...3 M0126 BN73-00170A RUBBER-
FOOT;943BW,2043BW,RUBBER,8*8,1.5, 4 SNA
0.1 BN90-02673A ASSY COVER FRONT;EX2220X,BLACK,HIGH
GLOS 1 SNA
..2 F001A BN96-12854C ASSY COVER P-FRONT;Cobalt
21.5,ABS+PMMA, 1 SA
...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.04,680mm,20 1.13 SNA
...3 F001 BN63-06703C COVER-FRONT;Cobalt
21.5",PMMA+ABS,HB,BK2 1 SNA
...3 M0007 BN64-01309A KNOB-FUNCTION;Cobalt Project,ABS,BK23 1 SNA
...3 AL093 BN67-00281A LENS-LED;Cobalt Project,PC CLEAR,TP26 1 SNA
...3 BN68-02382B LABEL-TCO5.0,ENERGY-
STAR;TCO5.0,ENERGY-S 1 SNA
...3 FB01A BN96-13682D ASSY BOARD
P-FUNCTION;Cobalt,FUNCTION,25 1 SA
....4 BN94-03497C ASSY PCB FUNCTION-BN96-
13682D;COBALT,BN9 1 SNA
.....5 0202-001463 SOLDER-WIRE;LFC2-W3.0,-,D3,99.79Sn/0.2Cu 1.814 SNA
.....5 0202-001608 SOLDER-WIRE FLUX;LFC7-107,D0.8,99.3Sn/0. 0.003 SNA
.....5 0204-002420 SOLVENT;1M-1000,C3H70H,96 3.47 SNA
.....5 0204-002607 FLUX;DF-234U,13%,14KG,Gravity 0.82 2.259 SNA
.....5 M2893 BN39-01298C LEAD CONNECTOR;COBALT,UL1061#28,UL/
CSA,5 1 SNA
.....5 T0174 BN97-04306A ASSY SMD;COBALT, FUNCTION 1 SNA
......6 0202-001477 SOLDER-CREAM;LST309-
M,D20~45um,96.5Sn/3A 0.462 SNA
......6 L0405 0601-001896 LED;SMD,BLUE,1.6x0.8x0.4mm,470,1.6x0.8x0 1 SA
......6 AHR40 2007-000088 R-CHIP;7.5Kohm,5%,1/10W,TP,1608 2 SNA
......6 KAR11 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 2 SNA
......6 T0313 3404-001379 SWITCH-TACT;12V,50mA,250gf,4.9x4.9x1.5mm 6 SA
......6 HB01A 3711-005743 HEADER-BOARD TO
CABLE;BOX,5P,1R,1.25mm,A 1 SA
......6 BN41-01400B PCB SUB-FUNCTION;Cobalt(all),FR-4,2,1.1, 1 SNA
0.1 BN91-04714A ASSY LCD-ATZ;BX2240 1 SNA
..2 M0215 BN07-00795A LCD-PANEL;M215HW01 V6,AU21507,6bit Hi-FR 1 SA
0.1 M0017 BN91-05267A ASSY CHASSIS-ATZ;LS22CLUSB/EN,EX2220 1 SNA

5-4
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
..2 T0081 6001-002408 SCREW-MACHINE;BH,+,WT,M4,L12,ZPC(WHT
),SW 2 SA
..2 M0081 6003-000264 SCREW-TAPTYPE;PWH,+,-
,B,M3,L6,ZPC(WHT),S 2 SA
..2 P002A BN44-00367A IP BOARD-LED DRIVE;IP-23155B,Cobalt21.5" 1 SA
..2 M0014 BN94-03250A ASSY PCB MAIN;BX2240,LS22CBUABV/EN 1 SA
...3 0202-001463 SOLDER-WIRE;LFC2-W3.0,-,D3,99.79Sn/0.2Cu 1.558 SNA
...3 0202-001608 SOLDER-WIRE FLUX;LFC7-107,D0.8,99.3Sn/0. 0.003 SNA
...3 0204-002420 SOLVENT;1M-1000,C3H70H,96 3.47 SNA
...3 0204-002607 FLUX;DF-234U,13%,14KG,Gravity 0.82 2.259 SNA
...3 3701-001510 CONNECTOR-DSUB;15P,3R,FEMAIL,STAMPED
PIN 1 SNA
...3 EC05 3701-001666 CONNECTOR-
DVI;24P,3ROW,FEMALE,STARAIGHT, 1 SNA
...3 BN97-00707A ASSY HDCP;BN46-00018A,BR20/21BS_
CS,MSTAR 1 SNA
....4 BN46-00018A KEY CODE-CERTIFICATE;(HDCP KEY)
PPM42M5S, 1 SNA
...3 T0174 BN97-03977A ASSY SMD;BX2240,LS22CBUABV/EN 1 SNA
....4 0202-001477 SOLDER-CREAM;LST309-
M,D20~45um,96.5Sn/3A 0.795 SNA
....4 DS01A 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200m
A,SO 11 SA
....4 DR01A 0402-001614 DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP 1 SA
....4 MZD1 0403-001411 DIODE-ZENER;5.49-5.73V,200mW,SOD-323,TP 10 SA
....4 0403-001712 DIODE-ZENER;QZX363C6V8,6.47/7.14V,200mW, 2 SNA
....4 Q101 0501-000445 TR-SMALL SIGNAL;KTC3875S-
Y,NPN,150mW,SOT 1 SA
....4 PQ02 0501-002080 TR-SMALL
SIGNAL;2SC2412K,NPN,200mW,SC-59 3 SA
....4 Q409 0505-001165 FET-SILICON;Si3443CDV,P,-20V,+-4.4A,65mo 1 SA
....4 ND51C2 1001-001155 IC-ANALOG
MULTIPLEX;NC7SB3157P6X,CMOS,SC 1 SA
....4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8,SOP,8P,5x4mm 2 SA
....4 IC112 1103-001410 IC-EEPROM;S-24CS08AFJ-TB-1GE,8Kbit,1Kx8, 1 SA
....4 IC109 1205-003894 IC-LCD CONTROLLER;SE959LMH-
LF,PQFP,128P, 1 SA
....4 DR1 2007-000043 R-CHIP;1Kohm,1%,1/10W,TP,1608 5 SA
....4 KAR21 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 SNA
....4 CER02 2007-000071 R-CHIP;22ohm,5%,1/10W,TP,1608 12 SNA
....4 AR30 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 19 SA
....4 AVR51 2007-000083 R-CHIP;3Kohm,5%,1/10W,TP,1608 2 SNA
....4 CER04 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 3 SA
....4 MROP1 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 22 SA
....4 AR108 2007-000097 R-CHIP;47Kohm,5%,1/10W,TP,1608 7 SA
....4 ARR2 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 2 SA
....4 MR112 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 2 SA
....4 HR13 2007-000821 R-CHIP;390ohm,1%,1/10W,TP,1608 2 SNA
....4 WR15B 2007-001044 R-CHIP;56ohm,5%,1/10W,TP,1608 2 SA
....4 ZR10 2007-001164 R-CHIP;75ohm,1%,1/10W,TP,1608 3 SNA
....4 R1 2007-002425 R-CHIP;1ohm,5%,1/10W,TP,1608 5 SNA
....4 2007-007720 R-CHIP;300Kohm,1%,1/10W,TP,1608 1 SA
....4 C258 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 3 SA
....4 C134 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 1 SA

5-5
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
....4 ZC14 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 3 SNA
....4 AAC14 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608 6 SA
....4 DC108 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 47 SC
....4 PC11 2203-006141 C-CER,CHIP;1000nF,10%,16V,X5R,1608 3 SNA
....4 C125 2203-006361 C-CER,CHIP;10000nF,10%,10V,X5R,TP,2012 18 SC
....4 X202 2801-003667 CRYSTAL-SMD;14.31818MHz,30ppm,28-
AAN,16p 1 SA
....4 L2011 3301-001145 BEAD-SMD;60ohm,4516,TP,70ohm/45MHz,82o
hm 4 SNA
....4 T0568 3301-001407 BEAD-SMD;30ohm,1608,300mA,TP,,,0.4ohm 2 SNA
....4 AC510 3708-001150 CONNECTOR-FPC/FFC/PIC;30P,1mm,SMD-
A,SN,Y 1 SA
....4 HB01A 3711-005743 HEADER-BOARD TO
CABLE;BOX,5P,1R,1.25mm,A 1 SA
....4 M0018 BN97-03976A ASSY MICOM;BX2240 1 SNA
.....5 1107-001938 IC-FLASH
MEMORY;W25X40BVSSIG,4Mbit,SOP,8 1 SNA
....4 T0087 1203-006118 IC-POSI.FIXED REG.;S-1172B18-U5T1G,SOT-8 1 SA
....4 T0087 1203-006141 IC-POSI.FIXED REG.;S-1172B33-U5T1G,SOT-8 1 SA
....4 KAR11 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 1 SNA
....4 C3 2203-000384 C-CER,CHIP;0.015nF,5%,50V,C0G,1608 1 SNA
....4 T0077 BN41-01311B PCB MAIN;PLUM B2330,CEM-3,2,MP1.0,1.6,91 1 SNA
...3 CN906 3711-005847 CONNECTOR-
HEADER;BOX,9P,1R,2MM,ANGLE,SN, 1 SNA
..2 M0214 BN96-02854Y ASSY CABLE P-FLAT;Mckinley,Flat cable,17 1 SA
..2 CS02A BN96-13324A ASSY SHIELD P-COVER;Cobalt 21.5,SECC,T0. 1 SNA
...3 BN61-05973A STUD-PEM;PLUM23'',M4,D8,L20 1 SNA
...3 BN63-06705A SHIELD-COVER;Cobalt 21.5,SECC,T0.8,SIMPL 1 SNA
...3 M0114 BN61-02500A HOLDER-WIRE;NYLON6.6,NATURAL 1 SNA
...3 BN63-00417A GASKET;MINERVA,Conductive_Fabric,4mm,10m 2 SNA
...3 M0131 BN63-00049A GASKET;RB17AS,Conductive Fabric,1.5MM,10 3 SNA
0.1 BN92-05486D ASSY LABEL;Cobalt, BLACK 1 SNA
..2 CCM1 BN68-01570A LABEL RATING;ALL,SS,PE,T0.05,90,45,Dark 1 SNA
0.1 BN92-05547Q ASSY P/MATERIAL;S22S1,W/W 1 SNA
..2 T0214 0203-001595 TAPE-OPP MASKING;OPP-2,0.075,75,800M,CLR 1.46 SNA
..2 6902-000061 BAG AIR;LDPE,T0.2,W500,L1000,TRP,370.000 1 SNA
..2 6902-000379 BAG AIR;LDPE,T0.2,W1000,L1800,TRP,1260.0 1 SNA
..2 T0524 6902-000520 BAG PE;HDPE/NITRON,T0.015/
T0.5(DOUBLE),W 1 SNA
..2 6902-000604 BAG WRAPPING;LDPE,T0.02,W500,L10000,TRP, 2.12 SNA
..2 6902-000609 BAG ROLL;LDPE,T0.05,W2400,L1000,TRP,30.0 0.02 SNA
..2 T0527 BH68-40364A LABEL-SUMMARY;G52,G72,ART,100G,WHT,BL
K,W 1 SNA
..2 BH69-00457C PACKING INNER-
00,PAD;COMM,OTHER,T3.0,880 1 SNA
..2 T0527 BN68-00129A LABEL SHIPPING-00;LABEL SHIPPING,ART-PAP 1 SNA
..2 BN69-00391P PAD-ANGLE;OTHER,T4,50,2200,YEL 1 SNA
..2 T0603 BN69-00617J PALLET-PACKING;TS15AS,OTHER,1150,780,120 1 SNA
..2 BN69-03565D PAD-PLATE;LD220,CB,SW,YEL,W1150,D800,520 1 SNA
..2 BN69-04623A CUSHION-SET;COBALT21.5",SIMPLE,EPS,T0.01 1 SNA
0.1 BN92-05633P ASSY BOX;EX2220,LS22CLUSF/XF 1 SNA
..2 T0077 BH68-00329D LABEL BAR CODE-02;NO CE,NO WT`Y,MPRII,LA 1 SNA
..2 BH68-00659H LABEL BOX-00;ALL MODEL,MOJO
90G,90,95,WH 1 SNA

5-6
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
..2 BN68-02248A HIC;CHINA MODELS5,CHINA,MOJO,80G,54,80,4 1 SNA
..2 BN69-04833A BOX-
03,SET;COBALT21.5,SIMPLE,PAPER,SW,A1 1 SNA
0.1 ACCE1 BN92-05916E ASSY ACCESSORY;LS22CLUSF/XF 1 SNA
..2 EC29 BN39-00244H CBF SIGNAL-D-SUB TO D-SUB;D-sub cable,15 1 SA
..2 ACCE1 BN96-12841E ASSY ACCESSORY;LS22CLUSF/XF 1 SNA
...3 T0268 3903-000455 CBF-POWER CORD;DT,CN,IP3/Y(A),IEC320 C13 1 SA
...3 T0524 6902-000110 BAG PE;LDPE,T0.05,W250,L400,TRP,28,2,9.2 1 SNA
...3 T0527 AA68-00764A LABEL-PASSING;SAMSUNG ALL,ART
PAPER,CLR, 1 SNA
...3 M9889 BN63-02368B CLOTH-CLEAN;cloth,120,160,sea blue,ToC 1 SA
...3 T0527 BN68-00513A LABEL-E,PASS;ALL MODEL,YUPO(110G),50X15, 1 SNA
...3 BN68-01118D MANUAL-TCO 5.0 CARD;COMM,W/W,Mojo
80g,21 1 SNA
...3 BN68-01789A MANUAL FLYER-WARRANTY CARD;Chinese,Art
11 SNA
...3 BN68-02528A MANUAL FLYER-CHINA
MANUAL;Cobalt,SyncMas 1 SNA
..2 SB01A BN96-12853A ASSY STAND
P-BODY;COBALT,HIPS,BK23,ETCH 1 SA
...3 W392 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW 2 SA
...3 T0524 6902-000023 BAG PE;LDPE,T0.08,W150,L120,TRP,1.650g 1 SNA
...3 BN61-06067A STAND-BAR;COBALT 21.5,HIPS,BK23 1 SNA
....4 BN61-06068A STAND-BAR IN;COBALT,HIPS,BK23,IN 1 SNA
...3 BN61-06334A BRACKET-PLATE;COBALT,SECC,1.0,SIMPLE 1 SNA
...3 BN68-02822J LABEL-STICKER;W/W,ART PAPER,T0.05,50,10, 1 SNA
..2 SB04A BN96-13094A ASSY STAND P-BASE;COBALT
19N,21.5~24,ABS 1 SA
...3 M0081 6003-001001 SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SW
RC 4 SNA
...3 T0524 6902-000109 BAG PE;HDPE,T0.015,W350,L430,TRP,28,2,4. 1 SNA
...3 CIS4 BN61-01717A HOLDER-STAND;BIZET,NI PLT,CH,+,M4,L11(5) 1 SNA
...3 BN61-05087A BRACKET-STAND BOTTOM;ECOFIT 23",SECC
T0. 1 SNA
...3 CCM1 BN63-02183K COVER-SHEET;Rhcm,PE Vinyl,T 0.04,250MM,2 0.3 SNA
...3 BN63-06834A COVER-STAND BASE;COBALT
19N,21.5~24,ABS+ 1 SNA
...3 AR011 BN73-00077A RUBBER FOOT;MATISSE,BUMPON,#13.5,T2.0
,60 6 SNA
...3 BN68-02691A MANUAL FLYER-STAND;COBALT,Mojo 80g,148,2 1 SNA
...3 BN68-02822F LABEL-STICKER;W/W,ART PAPER,T0.05,50,10, 1 SNA
0.1 BN91-04717B ASSY SHIELD;EX2220 1 SNA
..2 CIS1 BN74-00021A TAPE-FILAMENT;Filament tape,clear,#8915, 0.3 SNA
..2 M0230 BN96-13895A ASSY CABLE P-FFC;Cobalt,FFC CABLE,JPC-S0 1 SA

1-1
1. Precautions
1. Precautions
1-1. Safety Precautions
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as
electrical shock.
1-1-1. Warnings
For continued safety, do not attempt to modify the circuit board.1.
Disconnect the AC power and DC power jack before servicing.2.
1-1-2. Servicing the LCD Monitor
When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet.1.
It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of2.
this meter periodically.
1-1-3. Fire and Shock Hazard
Before returning the monitor to the user, perform the following safety checks:
Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the1.
chassis and other metal parts in the monitor.
Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and2.
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
Leakage Current Hot Check (Figure 1-1):3.
WARNING : Do not use an isolation transformer during this test.
Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI
C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).
With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch4.
rst in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit,
etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and repeat the test.
1-1-4. Product Safety Notices
Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual
inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,
wattage, etc. Parts that have special safety characteristics are identied by on schematics and parts lists. A substitute
replacement that does not have the same safety characteristics as the recommended replacement part might create
shock, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever
appropriate.
DEVICE
UNDER
TEST
(READING SHOULD)
NOT BE ABOVE 0.5mA
LEAKAGE
CURRENT
TESTER
TEST ALL
EXPOSED METAL
SURFACES
2-WIRE CORD
*ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED) EARTH
GROUND Figure 1-1. Leakage Current Test Circuit

1-2
1. Precautions
1-2. Servicing Precautions
WARNING: An electrolytic capacitor installed with the wrong polarity might explode.
Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of
this manual.
Note: If unforeseen circumstances create conict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before1.
attempting to:
(a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test
component in parallel with an electrolytic capacitor.
Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes2.
used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such
elements to their original position.
After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that3.
the area around the serviced part has not been damaged.
Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels,4.
input terminals and earphone jacks).
Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.5.
Connect an insulation resistance meter (500 V) to theblades of the AC plug.
The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be
greater than 1 megohm.
Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead;6.
always remove the instrument’s ground lead last.
1-3. Static Electricity Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some eld-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your1.
body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard,
be sure to remove the wrist strap before applying power to the monitor.
After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent2.
accumulation of an electrostatic charge.
Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.3.
Use only a grounded-tip soldering iron to solder or desolder ESDs.4.
Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate 5.
electrical charges sufcient to damage ESDs.
Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs6.
are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive
materials.
Immediately before removing the protective material from the leads of a replacement ESD, touch the protective7.
material to the chassis or circuit assembly into which the device will be installed.
Caution: Be sure no power is applied to the chassis or circuit and observe all other safety precautions.
Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together,8.
or lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.

1-3
1. Precautions
1-4. Installation Precautions
For safety reasons, more than two people are required for carrying the product.1.
Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.2.
Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal3.
temperature may cause re.
Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed4.
to moisture. Otherwise, it may cause a re or electric shock.
Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check5.
the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause re or electric
shock.
Keep the antenna far away from any high-voltage cables and install it rmly. Contact with the highvoltage cable or the 6.
antenna falling over may cause re or electric shock.
When installing the product, leave enough space (10cm) between the product and the wall for ventilation purposes.7.
A rise in temperature within the product may cause re.

1-4
1. Precautions
Memo

2-1
2. Product specications
2. Product specications
2-1. Feature & Specications
Model EX2220 / EX2220X
Feature
Panel Specications: 250 cd/m2, 5 ms, CR 1000:1, 170/160 (CR>10) ሪ
DPMS : <0.3Wሪ
Off-Timer function for reducing standby power usagesሪ
Windows7 authenticationሪ
DVI with HDCP (wide model)ሪ
Picture;a screen size desireሪ
Supported Magic Bright3/Magic Eco/Magic Angle/Magic Return off timer/Image Size/Color Effectሪ
Specications
Item Description
LCD Panel TFT-LCD panel, RGB vertical stripe, normally white transmissive,
21.5” Wide viewable 0.24825(H)x0.24825(V)mm pixel pitch
Scanning Frequency Horizontal : 30kHz ~ 81kHz (Automatic)
Vertical: 56Hz ~ 75Hz
Display Colors 16.7 Million colors
Maximum resolution Horizontal: 1920 Pixels
Vertical: 1080 Pixels
Input Signal Analog / DVI digital with HDCP
Input Sync Signal Seperate H/V sync, Composite H/V, Sync-on-Green
Level: TTL level
Maximum Pixel Clock rate 164Mhz
Active Display
(Horizontal/Vertical) 476.64(H) x 268.11(V)
AC power voltage &
Frequency AC 100V~130V, 60Hz & AC, 200V~240V 50Hz
Power Consumption MAX 23W / Typical21W
Dimensions Set
(W x D x H)
513.2 × 309.6 × 61.9mm (Without Stand)
513.2 × 200 × 388.5mm (With Stand)
Weight
(Set/Package)
Set : 4.0kg (Without Stand)
4.85kg (With Stand)
Environmental Considerations Operating Temperature: 10˚C ~ 40˚C(50˚F ~ 104˚F)
Operating Humidity : 10% ~ 80%
Operating Temperature: -20˚C ~ 45˚C(-4˚F ~ 113˚F)
Operating Humidity: 5% ~ 95%
Note: Designs and specications are subject to change without prior notice.

2-2
2. Product specications
2-2. Spec Comparison to the Old Models
Model Cobalt (EX2220 / EX2220X) CREAM (2233NW/2233BW/2233GW)
Design
Resolution 1920 x 1080 1680 x 1050
Input Analog / DVI digital with HDCP Analog / DVI digital with HDCP
( 2233NW : Analog only )
Response Time 5ms(B to B) 5ms(B to B)
Viewing Angle 170/160(CR>10) 170/160(CR>10)
Brightness 250 cd/m² 300 cd/m²
Contrast MEGA (DCR) 20000:1(DCR)
MagicBright 5 Step 7 Step
Feature
Magic Color
Color Effect
Image Size
Magic Bright3
Magic Tune (Premium)
Magic Return
Magic ECO
Magic Angle
Key Repeat Time
Magic Color
Color Effect
Image Size
Magic Bright2
Magic Tune (Premium)
*Color Effect
- Grey scale: Images are displayed in a grey tone on the screen.
- Green: Images are displayed in a green tone on the screen.
- Aqua: Images are displayed in a blue tone on the screen.
- Sepia: Images are displayed in a brown tone on the screen.
Image Size : If the resolution is not wide resolution, this option allows the screen size to be selected as normal or wide.
*Magic Angle
- Lean Back Mode1: Select when viewing from a slightly lower angle.
- Lean Back Mode2: Select when viewing from the bottom.
- Standing Mode: Select when viewing from the top.
- Side Mode: Select when viewing from the left or right.
- Custom: When <Custom> is selected, settings for <Lean Back Mode 1> is applied by default.
User can set suitable picture quality as needed.
*Magic Eco
- 100%: the power consumption is 100% of Default Setting.
- 75%: the power consumption is 75% of Default Setting.
- 50%: the power consumption is 50% of Default Setting.

2-3
2. Product specications
2-3. Accessories
Product Description Code. No Remark
Quick Setup Guide BN68-02480B
Samsung Electronics
Service center
Warranty Card
(Not available in all locations) BN68-01146D
User’s Guide,
Monitor Driver,
Natural Color Pro Software
BN59-00982A
D-Sub(15 Pin) Cable BN39-00244G
Power Cord 3903-000452
2-4. Accessories (Sold separately)
Product Description Code. No Remark
DVI Cable BN39-00246L Samsung Electronics
Service center