Samsung 2233GW Product specifications

LCD-Monitor
Chassis :LS22CLU
Model
:EX2220
EX2220X
SERVICE
TFT-LCD Monitor
Manual
Contens
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
EX2220 / EX2220X
Refer to the service manual in the GSPN (see the rear cover) for the more information.
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 specifications
2-1. Feature & Specifications.................................................................................................. 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. 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 figure.
② Separate the sides of the front cover up to the
directed line as shown in the figure.
3-1
3. Disassembly and Assembly
Description
3. Turn the monitor over again .
3-2
Photo
Screws
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.
LVDS
LAMP
WIRE
FUNCTION
6. Remove the LCD panel.
7. Remove the four (4) screws shown in the figure.
3-3
3. Disassembly and Assembly
Description
8. Remove the four (4) screws shown in the figure
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.
3-4
Photo
Screws
5. Exploded View & Part List
5. Exploded View & Part List
BN63-06705A
BN63-06367A
P002A
F001A
M0215
M0014
R001A
SB04A
SB01A
5-1. LS22CLUSF/XF - Exploded View
5-1
5. Exploded View & Part List
5-1-1. LS22CLUSF/XF - Parts List
Location No.
Code No.
Description & Specification
Q’ty
SA/SNA
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
5-2
Remark
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 & Specification
Q’ty
0.1
R001A
..2
R001A
...3
BN90-02667A
ASSY COVER REAR;EX2220,BLACK,texture
1
SNA
BN96-12855A
ASSY COVER P-REAR;Cobalt 21.5,HIPS,HB,BK
1
SA
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
BN96-13319A
ASSY SHIELD P-LAMP;Cobalt 21.5W,SPTE,T0.
1
SNA
BN63-00413A
GASKET;MB15KO,CONDUCTIVE
FAB,5MM,8MM,8MM
1
SNA
BN63-06367A
SHIELD-LAMP;PLUM 21.5'',SPTE,T0.3
1
SNA
BN73-00170A
RUBBERFOOT;943BW,2043BW,RUBBER,8*8,1.5,
4
SNA
BN90-02673A
ASSY COVER FRONT;EX2220X,BLACK,HIGH
GLOS
1
SNA
...3
....4
M0131
....4
...3
M0126
0.1
SA/SNA Remark
..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
1
SNA
...3
F001
BN63-06703C
COVER-FRONT;Cobalt
21.5",PMMA+ABS,HB,BK2
...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
BN68-02382B
LABEL-TCO5.0,ENERGYSTAR;TCO5.0,ENERGY-S
1
SNA
BN96-13682D
ASSY BOARD
P-FUNCTION;Cobalt,FUNCTION,25
1
SA
....4
BN94-03497C
ASSY PCB FUNCTION-BN9613682D;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
1
SNA
...3
...3
FB01A
.....5
M2893
BN39-01298C
LEAD CONNECTOR;COBALT,UL1061#28,UL/
CSA,5
.....5
T0174
BN97-04306A
ASSY SMD;COBALT, FUNCTION
1
SNA
0202-001477
SOLDER-CREAM;LST309M,D20~45um,96.5Sn/3A
0.462
SNA
......6
......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
3711-005743
HEADER-BOARD TO
CABLE;BOX,5P,1R,1.25mm,A
1
SA
BN41-01400B
PCB SUB-FUNCTION;Cobalt(all),FR-4,2,1.1,
1
SNA
......6
HB01A
......6
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
5-3
5. Exploded View & Part List
Level
Location No.
Code No.
Description & Specification
Q’ty
..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
3701-001510
CONNECTOR-DSUB;15P,3R,FEMAIL,STAMPED
PIN
1
SNA
3701-001666
CONNECTORDVI;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
BN97-03977A
ASSY SMD;BX2240,LS22CBUABV/EN
1
SNA
0202-001477
SOLDER-CREAM;LST309M,D20~45um,96.5Sn/3A
0.795
SNA
...3
...3
...3
EC05
T0174
....4
....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
....4
0403-001411
DIODE-ZENER;5.49-5.73V,200mW,SOD-323,TP
10
SA
0403-001712
DIODE-ZENER;QZX363C6V8,6.47/7.14V,200mW,
2
SNA
....4
Q101
0501-000445
TR-SMALL SIGNAL;KTC3875SY,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
1
SA
5
SA
....4
IC109
1205-003894
IC-LCD CONTROLLER;SE959LMHLF,PQFP,128P,
....4
DR1
2007-000043
R-CHIP;1Kohm,1%,1/10W,TP,1608
....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
5-4
SA/SNA Remark
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. Exploded View & Part List
Level
Location No.
Code No.
Description & Specification
Q’ty
....4
ZC14
....4
AAC14
....4
DC108
....4
PC11
....4
C125
SA/SNA Remark
2203-000626
C-CER,CHIP;0.022nF,5%,50V,C0G,1608
3
SNA
2203-000888
C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608
6
SA
2203-005005
C-CER,CHIP;100nF,10%,16V,X7R,1608
47
SC
2203-006141
C-CER,CHIP;1000nF,10%,16V,X5R,1608
3
SNA
2203-006361
C-CER,CHIP;10000nF,10%,10V,X5R,TP,2012
18
SC
1
SA
....4
X202
2801-003667
CRYSTAL-SMD;14.31818MHz,30ppm,28AAN,16p
....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
1
SA
....4
AC510
3708-001150
CONNECTOR-FPC/FFC/PIC;30P,1mm,SMDA,SN,Y
....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
1107-001938
IC-FLASH
MEMORY;W25X40BVSSIG,4Mbit,SOP,8
1
SNA
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
.....5
....4
....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
CONNECTORHEADER;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
BN61-02500A
HOLDER-WIRE;NYLON6.6,NATURAL
1
SNA
BN63-00417A
GASKET;MINERVA,Conductive_Fabric,4mm,10m
2
SNA
BN63-00049A
GASKET;RB17AS,Conductive Fabric,1.5MM,10
3
SNA
BN92-05486D
ASSY LABEL;Cobalt, BLACK
1
SNA
BN68-01570A
LABEL RATING;ALL,SS,PE,T0.05,90,45,Dark
1
SNA
...3
M0114
...3
...3
M0131
0.1
..2
CCM1
0.1
BN92-05547Q
ASSY P/MATERIAL;S22S1,W/W
1
SNA
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
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
BH68-40364A
LABEL-SUMMARY;G52,G72,ART,100G,WHT,BL
K,W
1
SNA
BH69-00457C
PACKING INNER00,PAD;COMM,OTHER,T3.0,880
1
SNA
..2
..2
..2
T0214
T0524
T0527
..2
..2
T0527
..2
..2
T0603
BN68-00129A
LABEL SHIPPING-00;LABEL SHIPPING,ART-PAP
1
SNA
BN69-00391P
PAD-ANGLE;OTHER,T4,50,2200,YEL
1
SNA
BN69-00617J
PALLET-PACKING;TS15AS,OTHER,1150,780,120
1
SNA
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
BH68-00329D
LABEL BAR CODE-02;NO CE,NO WT`Y,MPRII,LA
1
SNA
BH68-00659H
LABEL BOX-00;ALL MODEL,MOJO
90G,90,95,WH
1
SNA
..2
..2
..2
T0077
5-5
5. Exploded View & Part List
Level
Location No.
Code No.
Description & Specification
Q’ty
BN68-02248A
HIC;CHINA MODELS5,CHINA,MOJO,80G,54,80,4
1
SNA
BN69-04833A
BOX03,SET;COBALT21.5,SIMPLE,PAPER,SW,A1
1
SNA
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
1
1
SNA
...3
BN68-02528A
MANUAL FLYER-CHINA
MANUAL;Cobalt,SyncMas
1
SNA
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
..2
..2
0.1
..2
...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
BN61-05087A
BRACKET-STAND BOTTOM;ECOFIT 23",SECC
T0.
1
SNA
BN63-02183K
COVER-SHEET;Rhcm,PE Vinyl,T 0.04,250MM,2
0.3
SNA
BN63-06834A
COVER-STAND BASE;COBALT
19N,21.5~24,ABS+
1
SNA
BN73-00077A
RUBBER FOOT;MATISSE,BUMPON,#13.5,T2.0
,60
6
SNA
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
...3
...3
CCM1
...3
...3
AR011
...3
5-6
SA/SNA Remark
..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. 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
1. For continued safety, do not attempt to modify the circuit board.
2. Disconnect the AC power and DC power jack before servicing.
1-1-2. Servicing the LCD Monitor
1. When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet.
2. It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of
this meter periodically.
1-1-3. Fire and Shock Hazard
Before returning the monitor to the user, perform the following safety checks:
1. Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the
chassis and other metal parts in the monitor.
2. Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
3. Leakage Current Hot Check (Figure 1-1):
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).
(READING SHOULD)
NOT BE ABOVE 0.5mA
LEAKAGE
CURRENT
TESTER
DEVICE
UNDER
TEST
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
4. With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch
first 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 identified 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, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever
appropriate.
1-1
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 conflict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
1. Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before
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.
2. Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes
used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such
elements to their original position.
3. After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that
the area around the serviced part has not been damaged.
4. Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels,
input terminals and earphone jacks).
5. Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.
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.
6. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead;
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 field-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your
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.
2. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent
accumulation of an electrostatic charge.
3. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDs.
4. Use only a grounded-tip soldering iron to solder or desolder ESDs.
5. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static” can generate
electrical charges sufficient to damage ESDs.
6. Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs
are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive
materials.
7. Immediately before removing the protective material from the leads of a replacement ESD, touch the protective
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.
8. Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together,
or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD.
1-2
1. Precautions
1-4. Installation Precautions
1. For safety reasons, more than two people are required for carrying the product.
2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock.
3. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal
temperature may cause fire.
4. Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed
to moisture. Otherwise, it may cause a fire or electric shock.
5. Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check
the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric
shock.
6. Keep the antenna far away from any high-voltage cables and install it firmly. Contact with the highvoltage cable or the
antenna falling over may cause fire or electric shock.
7. When installing the product, leave enough space (10cm) between the product and the wall for ventilation purposes.
A rise in temperature within the product may cause fire.
1-3
1. Precautions
Memo
1-4
2. Product specifications
2. Product specifications
2-1. Feature & Specifications
Model
EX2220 / EX2220X
Feature
ሪሪ Panel Specifications: 250 cd/m2, 5 ms, CR 1000:1, 170/160 (CR>10)
ሪሪ DPMS : <0.3W
ሪሪ Off-Timer function for reducing standby power usages
ሪሪ Windows7 authentication
ሪሪ DVI with HDCP (wide model)
ሪሪ Picture;a screen size desire
ሪሪ Supported Magic Bright3/Magic Eco/Magic Angle/Magic Return off timer/Image Size/Color Effect
Specifications
Item
LCD Panel
Description
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
513.2 × 309.6 × 61.9mm (Without Stand)
(W x D x H)
513.2 × 200 × 388.5mm (With Stand)
Weight
Set : 4.0kg (Without Stand)
(Set/Package)
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 specifications are subject to change without prior notice.
2-1
2. Product specifications
2-2. Spec Comparison to the Old Models
Model
Cobalt (EX2220 / EX2220X)
CREAM (2233NW/2233BW/2233GW)
1920 x 1080
1680 x 1050
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)
250 cd/m²
300 cd/m²
MEGA (DCR)
20000:1(DCR)
5 Step
7 Step
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)
Design
Resolution
Input
Brightness
Contrast
MagicBright
Feature
*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.
2-2
2. Product specifications
2-3. Accessories
Product
Description
Code. No
Quick Setup Guide
BN68-02480B
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
Remark
Samsung Electronics
Service center
2-4. Accessories (Sold separately)
Product
Description
Code. No
Remark
DVI Cable
BN39-00246L
Samsung Electronics
Service center
2-3
2. Product specifications
Memo
2-4
4. Troubleshooting
4. Troubleshooting
4-1. Troubleshooting
1. Set custom mode as follows before beginning a repair.
EX2220 / EX2220X
Resolution: 1920 x 1080
H-freq uency: 67 kHz
V-frequency: 60 Hz
2. If the screen is blank, check whether the power cord is connected correctly.
3. The circuits to check:
• When the raster does not appear: The Function PCB, Main PCB, I/P PBA
• When 5V is generated but a blank screen is displayed: Main PCB
• When 5V is not generated: I/P PBA
4. “Press the MENU button and hold down the, “
factory mode.
(Enter, Source)” button for more than five (5) seconds to return the monitor to
4-1
4. Troubleshooting
4-2. When the Power Does Not Turn On
Symptom
-W
hen turning on the Power button after connecting the power cable, the LED at the front of the
monitor does not operate.
-W
hen turning on the Power button after connecting the power cable, the LED at the front of the
monitor does not operate.
Major checkpoints
- Check the IP board power fuse and the IP board output power.
- Check the connections for the IP board and the Main board inside the monitor.
- Check the Main board power part and also check whether there is any abnormal output at any of
the other output terminals.
CN600
IC601
IC602
Yes
Diagnostics
Is DC 5V measured at pins 5, 6 of the
CN600 connector when pins 3, 4 are
0V?
Check the connection status for
the function assy.
No
Replace the IP board.
Yes
IIs DC 3.3V measured at pin 3 of IC601
when pin 1 is DC 5V?
No
Check the circuits related to
IC601.
No
Check the circuits related to
IC602.
Yes
Is DC 1.8V measured at pin 2 of IC602
when pin 3 is DC 5V?
Yes
Check and replace the IP board.
Caution
4-2
Make sure to disconnect the power before working on the IP board.
4. Troubleshooting
4-2-1. Circuit diagrams when the power does not turn on
4-3
4. Troubleshooting
4-3. When the screen is blank (Analog)
Symptom
- LEven though the LED power turns on, the screen is blank when connecting the VGA cable.
- Even though the LED power turns on, the screen is blank when connecting the VGA cable.
Major checkpoints
- Check the D-sub cable connections.
- Check whether the LVDS cable is connected correctly to the panel.
- Check whether the lamp connector of the panel is connected correctly to the IP board.
CN400
IC400
X401
R206,R210,R213
Check the signal cables and
their connections.
Yes
Diagnostics
① Is X401 oscillating correctly?
No
Check and replace the circuits
related to X401.
No
Check the R206, R210, and
R213 input terminals.
No
Check the circuits related to
IC400.
No
Check the circuits related to
CN400.
No
Check the +5V_Panel signal
and the BL_EN signal.
Yes
② Do the RGB inputs appear at R206,
R210, and R213?
Yes
Do the ③ Hsync and ④ Vsync
waveforms appear at pins 32, 33 of
IC400, respectively?
Yes
Do output signals appear at pins 8 to 30
of CN400?
Yes
Is DC 5V measured at pins 1, 2, and 3
of the CN400?
Yes
Check and replace the panel.
Caution
4-4
Make sure to disconnect the power before working on the IP board.
4. Troubleshooting
4-3-1. When a blank screen is displayed (Analog)
4-5
4. Troubleshooting
4-3-2. Waveforms when no screen is displayed (Analog)
①
④
4-6
③
4. Troubleshooting
4-4. When a blank screen is displayed (Digital)
Symptom
- Even though the LED power turns on, the screen is blank when connecting the DVI cable.
- Even though the LED power turns on, the screen is blank when connecting the DVI cable.
Major checkpoints
- Check the DVI cable connections.
- Check whether the LVDS cable is connected correctly to the panel.
- Check whether the lamp connector of the panel is connected correctly to the IP board.
CN400
X401
IC400
R109, R110, R113
Check the signal cables and
their connections.
Diagnostics
Yes
① Is X401 oscillating correctly?
No
Check and replace the circuits
related to X401.
No
Check the R206, R210, and
R213 input terminals.
No
Check the circuits related to
CN400.
No
Check the Panel EN signal
and the BL_EN signal.
Yes
② Do the inputs appear at R206,
R210, and R213?
Yes
Do output signals appear at pins 8 to 30
of CN400?
Yes
Can DC 5V be measured at pins 1, 2,
and 3 of CN400?
Yes
Check and replace the panel.
Caution
Make sure to disconnect the power before working on the IP board.
4-7
4. Troubleshooting
4-4-1. Circuit diagrams when a blank screen is displayed (Digital)
4-8
4. Troubleshooting
4-4-2. Waveforms when a blank screen is displayed (Digital)
①
②
4-9
4. Troubleshooting
4-5. Error Examples and Actions
Error Appearance
Symptoms and Actions
Symptom:DVI signals are not recognized.
Cause:
This error occurs because the PC cannot
recognize the mode information since the
DVI DDC is not input to the monitor.
Action:
Input the DVI DDC.
Symptom:A full white screen is displayed regardless of
the signals when turning on the monitor.
Cause:
This error occurs when only lamp power
is supplied and the video signals are not
input to the panel due to an LVDS cable
connection error.
Action:
Replace the LVDS cable or connect the
cable correctly so that the video signals can
be supplied to the panel.
Symptom:When connecting the DVD, noise occurs on
the screen.
4-10
Cause:
The HDCP key is not inserted.
Action:
Enter the HDCP key. (See page 4-17.)
Remarks
*On how to input DDC, refer to the
training manual.
* A Full White pattern is a feature of a
TN panel when no video signals are
supplied.
4. Troubleshooting
4-6. Adjustment
4-6-1. Service Adjustment Conditions
1. Precautions before a Service Adjustment
1) Check whether the devices for the service adjustment are operating normally.
2) Secure a space that is sufficiently wide for disassembling the monitor.
3) Prepare a soft mat on which the monitor will be disassembled.
2. Entering Service Mode
Entering:
Exiting:
Menu
Power OFF
Brightness 0
Contrast 0
Hold down the Enter button for five (5) seconds.
Power ON
3. Basic Service Items to Perform after Replacing a Board
1) Check the PC color adjustment status.
2) Input DDC (input both of Analog and Digital).
3) Check whether the appropriate MCU code for the model is input.
4) Hard power the monitor off after entering service mode and performing a reset.
4. DDC EDIT Data Input
1) Use when updating the AD board code.
2) Download the WinDDC program, DDC Input program, and Hex and DDC files appropriate to the model through the
Quality Control department of Samsung Electronics. Install the jig and input the data, as shown in the figure.
Monitor needing
adjustment
Parallel
Connector
(25P Cable)
MTI-2031
DDC Manger
Connect Monitor
(Signal Cable)
4-11
4. Troubleshooting
4-6-2. Service Function Specifications
„„ Checking the Code Version
1. Check the MCU code version and checksum after entering SVC Mode.
2. E
ntering SVC Mode
- Adjust the Brightness and Contrast values to 0.
- Hold down the Enter button for five (5) seconds.
- The SVC Function OSD is displayed.
- To exit the SVC Function, turn the power off.
3. S
afe Mode
- When the input signal is higher than the supported frequency of the product, safe mode gives users some time (one
minute) to change the video card settings to the Recommended Mode settings.
Panel information
Select the Auto option
Select the PixelShift option.
Country
Select HotPlug
Select MagicReturn Time when
MagicReturn is on
Scaler Vender
Micom version
Micom checksum
„„ Service Mode (Moving around)
1. Press the + button to move to other items.
4-12
4. Troubleshooting
2. Press the - button to change the setting to On or Off.
„„ When replacing the panel
After replacing the panel, move to the Panel item and hold down the Menu button for five (5) seconds.
The Ch. No is incremented by 1 and then both the On Time and Cycle are set to 0.
This number is incremented by 1.
4-13
4. Troubleshooting
„„ Inputting the DDC Data
1
2
3
4
5
Use the DDC Manager MTI-2050 version or later.
1) Click the Open [F5] icon.
2) Select a port.
3) Open a DDC file.
4) Select a date and click the OK [Save] button.
5) Click the Next [OK] button.
6
6) Enter the serial number and then press the Enter button
※※When inputting digital data after inputting analog data, repeat steps 2 to 5.
4-14
4. Troubleshooting
„„ Inputting the MCU Data
1
1) Check the following options.
- Manufacture: MSTAR
- Device Type:TSUMxxx
- Communication Port: DSUB15 (Analog)
- External Memory: PMC25LV020E
2
2) Click the LoadFile button, select an MCU code file, and then click the Open [O] button.
4-15
4. Troubleshooting
3
3) Click the Auto Program button.
4) When programming and verification are complete, hard power the monitor off and then on again.
4-16
4. Troubleshooting
„„ Inputting the Code (HDCP)
1. Run the service.exe file.
2. Click the HDCP button.
4-17
4. Troubleshooting
3. Click the HDCP Write button and select MStar_HDCPKEY.
4. Inputting the HDCP key is completed.
4-18
6. Wiring Diagram
6. Wiring Diagram
6-1. Wiring Diagram - Main Board
6-1
6. Wiring Diagram
6-2. Wiring Diagram - IP Board
6-2
6. Wiring Diagram
6-3. Connector Functions
Connector
CN101 CN600
Functions
Supplies 5V from the power board to the main board and transmits the PWM output from the
power board to the inverter.
*When a problem occurs: The No Power and Blank Screen errors may occur.
CN1 ~ CN4 In
Transmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel.
* When a problem occurs: The Blank Screen error may occur.
CN102
Transmits the input power of 90 to 263V to the power board.
* When a problem occurs: The No Power error may occur.
CN101
Connects the function board.
* When a problem occurs: The No LED screen and Function failure errors may occur.
CN102
VGA signal input terminal
* When a problem occurs: The No RGB output error may occur.
CN400
Transmits the LVDS signals from the main board to the panel.
* When a problem occurs: The Blank screen and No Power errors may occur.
6-4. Cables
Use
LVDS 30P FFC cable
Code
BN96-02854Y
Photo
6-3
6. Wiring Diagram
Memo
6-4