Samsung SyncMaster PX2370 User manual

LCD-Monitor
Chassis : LS23WHU
Model : PX2370
SERVICEManual
TFT-LCD Monitor Contens
PX2370
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
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Contents
1. Precautions.............................................................................................................. 1-1
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
2-1. Feature & Specications................................................................................................. 2-1
2-2. Spec Comparison to the Old Models.............................................................................. 2-2
2-3. Accessories .................................................................................................................... 2-3
2-4. Accessories (Sold separately) ........................................................................................ 2-4
3. Disassembly and Assembly ................................................................................... 3-1
3-1. Disassembly ................................................................................................................... 3-1
4. Troubleshooting ...................................................................................................... 4-1
4-1. Troubleshooting .............................................................................................................. 4-1
4-2. When the power does Not Turn on................................................................................. 4-2
4-3. When the screen is blank (Analog)................................................................................. 4-4
4-4. When a blank screen is displayed (Digital)..................................................................... 4-7
4-5. When a blank screen is displayed (HDMI) ................................................................... 4-10
4-6. Error Examples and Actions ......................................................................................... 4-13
4-7. Adjustment.................................................................................................................... 4-14
5. Exploded View & Part List ...................................................................................... 5-1
5-1. Exploded View................................................................................................................ 5-1
5-2. Parts List......................................................................................................................... 5-3
6. Wiring Diagram........................................................................................................ 6-1
6-1. Wiring Diagram - Main Board ......................................................................................... 6-1
6-2. Board Connection........................................................................................................... 6-2
6-3. Connector Functions ...................................................................................................... 6-3
6-4. Cables ............................................................................................................................ 6-3
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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: BN82-00899A-00
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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. As shown in the picture, stand the monitor
and pull out the upper corner of the Cover-
Front. In the same manner, detach the
other upper corner of the Cover-Front.
2. Detach the left and right sides of the Cover-
Front in the same manner as step 1.
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3-2
3. Disassembly and Assembly
Description Photo Screws
3. Place the monitor face down on the table
covered with a soft material and lift the
Cover-Rear.
4. Remove the FFC cable, LED Driver wire,
Tact Function wire and Touch Function
wire, and detach the shield.
5. Remove the Filament tape and Tact
Function.
6. Remove the PBA bracket and Function.
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3-3
3. Disassembly and Assembly
Description Photo Screws
7. Lift the drive board upward, and pull the
upper and lower part in opposite directions
until the board is detached.
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3-4
3. Disassembly and Assembly
Description Photo Screws
8. Remove the 2 (hex-cap) screws and 3
screws, and detach the main board.
※The assembly is in the reverse order of disassembly.
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3-5
3. Disassembly and Assembly
3-1-1. Fixing the Function PCB
설명 그림 설명 나사
1. Fix the Function PCB into the panel as
indicated by the red line in the picture using
the Cover-Front guide.
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3-6
3. Disassembly and Assembly
Memo
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5-1
5. Exploded View & Part List
5. Exploded View & Part List
5-1. LS23WHUKF/XF - Exploded View
T0003
M0146
M0215
M0215 M0006
M0014
M0013
M0145
M0027
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5-2
5. Exploded View & Part List
5-1-1. Parts List
Location No. Code No. Description & Specication Q’ty SA/SNA Remark
M0006 BN96-13409A ASSY SHIELD P-COVER;WHITE 23,SECC T0.8 1 SNA
M0013 BN96-12828A ASSY COVER P-REAR;WHITE 23,PMMA+ABS,HB,B 1 SA
M0014 BN94-03230K ASSY PCB MAIN-OTZ,W/W;LS23WTUKF5/EN 1 SA
M0027 BN96-12829A ASSY STAND P-BASE;WHITE 23,PMMA 3H,GY016 1 SA
M0145 BN96-12843B ASSY BOARD P-FUNCTION TACT;WHITE,Functio 1 SA
M0146 BN96-12842B ASSY BOARD P-FUNCTION POWER;WHITE,Functi 1 SA
M0215 BN07-00797A LCD-PANEL;M230WA01-ED,IN230A1,6Bit + Hi- 1 SA
M0215 BN44-00337A INVERTER;White23"w(LED),GH355A,12V,8.5mA 1 SA
T0003 BN96-12827A ASSY COVER P-FRONT;WHITE 23,PMMA,PMMA+AB 1 SA
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5-3
5. Exploded View & Part List
5-2. LS23WHUKF/XF - Parts List
Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE)
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
0.1 BN90-02510A ASSY COVER FRONT;WHITE 23 1 SNA
..2 T0003 BN96-12827A ASSY COVER P-FRONT;WHITE
23,PMMA,PMMA+AB 1 SA
...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.04,680mm,20 1.25 SNA
...3 M0112 BN63-06402A COVER-FRONT;WHITE
23",PMMA,PMMA+ABS,HB,T 1 SNA
...3 T0527 BN68-00798D LABEL-ENERGY,STAR;L/M,W/W,PET,T0.05,9.3, 1 SNA
..2 BN68-02846A LABEL-MONITOR-POP;White
POP,WW,PET,T0.05 1 SNA
0.1 M0002 BN90-02511A ASSY COVER REAR;WHITE 23 1 SNA
..2 M0013 BN96-12828A ASSY COVER P-REAR;WHITE
23,PMMA+ABS,HB,B 1 SA
...3 T0081 6001-000595 SCREW-MACHINE;PH,+,NO,M4,L20,ZPC(WHT
),SW 2 SNA
...3 M0081 6003-001001 SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SW
RC 3 SNA
...3 M0081 6003-001119 SCREW-TAPTYPE;FH,+,S,M4,L10,ZPC(BLK),S
WR 3 SNA
...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.04,680mm,20 0.5 SNA
...3 M0006 BN63-06404A COVER-REAR;WHITE
23",PMMA+ABS,HB,BK23,H/ 1 SNA
...3 M0006 BN63-06405A COVER-REAR SUB;WHITE
23",PMMA+ABS,HB,BK2 1 SNA
...3 BN63-06406A COVER-STAND FRONT;WHITE
23",PMMA+ABS,HB, 1 SNA
...3 BN63-06407A COVER-STAND REAR;WHITE
23",PMAA+ABS,HB,B 1 SNA
...3 MASB1 BN96-12834A ASSY STAND P-BODY;WHITE 23,PC,ROSE
BLACK 1 SA
....4 BN61-06035A STAND-BAR OUT;WHITE 23",PC,TP30,CLEAR 1 SNA
.....5 BN61-06036A STAND-BAR IN;WHITE 23",PC,TP23,CLEAR 1 SNA
.....5 BN61-06037A STAND-A;WHITE 23",PC,ROSE BLACK 1 SNA
......6 BN61-02932E BRACKET-STOPPER NUT;ECOFIT
20,M4,D8,L12, 1 SNA
....4 CCM1 BN63-02183B COVER-SHEET;Rhcm,PE Vinyl,T0.04,150mm,20 0.2 SNA
...3 BN61-06385A BRACKET GUIDE-STAND;HGI,T 1.6 1 SNA
...3 T0054 BN96-12831A ASSY HINGE P;WHITE 23",SM50C T2.4 1 SNA
...3 BN61-06538A BOSS-TAPE;WHITE,ACRYL,T0.64,W10mm,white, 0.4 SNA
0.1 BN91-04350Y ASSY LCD-OTZ;LS23EFUKF/XF 1 SNA
..2 M0215 BN07-00797A LCD-PANEL;M230WA01-ED,IN230A1,6Bit + Hi- 1 SA
0.1 M0017 BN91-04693C ASSY CHASSIS-OTZ,W/W;LS23WTUKF5/EN 1 SNA
..2 M0215 BN44-00337A INVERTER;White23"w(LED),GH355A,12V,8.5mA 1 SA
..2 M0014 BN94-03230K ASSY PCB MAIN-OTZ,W/W;LS23WTUKF5/EN 1 SA
...3 0202-001463 SOLDER-WIRE;LFC2-W3.0,-,D3,99.79Sn/0.2Cu 0.814 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 6.46 SNA
...3 0204-002607 FLUX;DF-234U,13%,14KG,Gravity 0.82 4.201 SNA
...3 3701-001225 CONNECTOR-
DVI;24P+5C,3R,FEMALE,STRAIGHT, 1 SA
...3 JA330 3722-002758 JACK-PHONE;1P,BLK,STRAIGHT 1 SA
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5-4
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
...3 3722-002922 JACK-DC POWER;3P,6.7mm,SnPb,Black 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 BN97-03934L ASSY SMD;LS23WTUKF5/EN,BN41-0* 1 SNA
....4 0202-001477 SOLDER-CREAM;LST309-
M,D20~45um,96.5Sn/3A 0.711 SNA
....4 HD7 0401-000008 DIODE-
SWITCHING;DAN217,80V,100MA,SOT-23, 2 SA
....4 DS01A 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200m
A,SO 3 SA
....4 DR01A 0402-001614 DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP 2 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, 1 SNA
....4 D0254 0404-001020 DIODE-SCHOTTKY;BAT54C,30V,200mA,SOT-
23,T 3 SA
....4 T0139 0406-001271 DIODE-TVS;RCLAMP0524P,6/-/-V,150W,SLP251 4 SNA
....4 Q101 0501-000445 TR-SMALL SIGNAL;KTC3875S-
Y,NPN,150mW,SOT 7 SA
....4 PQ02 0501-002080 TR-SMALL
SIGNAL;2SC2412K,NPN,200mW,SC-59 7 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 4 SA
....4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8,SOP,8P,5x4mm 2 SA
....4 IC112 1103-001310 IC-EEPROM;24LC02B,256X8BIT,SOIC,8P,3.91X 1 SNA
....4 IC112 1103-001410 IC-EEPROM;S-24CS08AFJ-TB-1GE,8Kbit,1Kx8, 1 SA
....4 T0085 1201-002487 IC-AUDIO
AMP;MAX9728A,QFN,12P,3x3mm,DUAL 1 SA
....4 1202-000104 IC-VOLTAGE COMP.;393,SOP,8P,150MIL,DUAL, 1 SA
....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 1205-003201 IC-BUS SWITCH;TC7WB125FK,SSOP,8P,2x2.3
mm 2 SA
....4 1405-001233 VARISTOR;30Vdc,5A,1.6x0.8x0.8mm,TP 2 SA
....4 MROP1 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 1 SA
....4 MR604 2007-000137 R-CHIP;2Kohm,5%,1/16W,TP,1005 3 SNA
....4 R105 2007-000138 R-CHIP;100ohm,5%,1/16W,TP,1005 22 SNA
....4 AR49 2007-000140 R-CHIP;1Kohm,5%,1/16W,TP,1005 5 SNA
....4 MR306 2007-000141 R-CHIP;2.2Kohm,5%,1/16W,TP,1005 3 SNA
....4 R319 2007-000143 R-CHIP;4.7Kohm,5%,1/16W,TP,1005 18 SNA
....4 R104 2007-000148 R-CHIP;10Kohm,5%,1/16W,TP,1005 26 SNA
....4 HDR9 2007-000152 R-CHIP;20Kohm,5%,1/16W,TP,1005 3 SNA
....4 MR13 2007-000157 R-CHIP;47Kohm,5%,1/16W,TP,1005 6 SNA
....4 DR39 2007-000162 R-CHIP;100Kohm,5%,1/16W,TP,1005 5 SNA
....4 HDR17 2007-000172 R-CHIP;10ohm,5%,1/16W,TP,1005 10 SNA
....4 R338 2007-000173 R-CHIP;22ohm,5%,1/16W,TP,1005 9 SNA
....4 OTR1 2007-001292 R-CHIP;33ohm,5%,1/16W,TP,1005 5 SNA
....4 AVR63 2007-001323 R-CHIP;3Kohm,5%,1/16W,TP,1005 3 SA
....4 PR24 2007-002970 R-CHIP;56ohm,5%,1/16W,TP,1005 2 SA
....4 2007-007319 R-CHIP;390ohm,1%,1/16W,TP,1005 2 SNA
....4 2007-007463 R-CHIP;1.1Kohm,1%,1/16W,TP,1005 1 SA
....4 MR11 2007-008015 R-CHIP;75ohm,1%,1/16W,TP,1005 3 SNA
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5-5
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
....4 C258 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 2 SA
....4 C409 2203-000292 C-CER,CHIP;0.01nF,5%,50V,C0G,1608 2 SA
....4 C3 2203-000384 C-CER,CHIP;0.015nF,5%,50V,C0G,1608 1 SNA
....4 C254 2203-000438 C-CER,CHIP;1nF,10%,50V,X7R,TP,1005 2 SA
....4 ZC14 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 1 SNA
....4 AD480 2203-002720 C-CER,CHIP;10nF,10%,25V,X7R,TP,1005 5 SNA
....4 DC108 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 3 SC
....4 PC8 2203-005642 C-CER,CHIP;0.22nF,5%,50V,NP0,1005 2 SNA
....4 AD480 2203-005968 C-CER,CHIP;4.7NF,10%,50V,X7R,TP,1005 6 SNA
....4 C102 2203-006158 C-CER,CHIP;100nF,10%,16V,X7R,1005 37 SNA
....4 AD480 2203-006336 C-CER,CHIP;10000nF,10%,25V,X5R,3216 12 SA
....4 C234 2203-006378 C-CER,CHIP;4700nF,10%,6.3V,X5R,TP,1608 1 SNA
....4 HDC11 2203-006562 C-CER,CHIP;1000nF,10%,10V,X5R,TP,1005 1 SNA
....4 AD480 2203-007270 C-CER,CHIP;10000nF,10%,10V,X5R,TP,1608 25 SNA
....4 T0052 2703-002801 INDUCTOR-SMD;3.9uH,20%,7070 1 SA
....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 6 SNA
....4 T0568 3301-001176 BEAD-SMD;80ohm,2012,TP,-,- 3 SNA
....4 T0568 3301-001407 BEAD-SMD;30ohm,1608,300mA,TP,,,0.4ohm 2 SNA
....4 3701-001367 CONNECTOR-HDMI;21P,2R,FEMALE,SMD,AU 1 SA
....4 AC510 3708-001150 CONNECTOR-FPC/FFC/PIC;30P,1mm,SMD-
A,SN,Y 1 SA
....4 HB01A 3711-005499 HEADER-BOARD TO
CABLE;BOX,8P,1R,1.25mm,S 1 SA
....4 HB01A 3711-005509 HEADER-BOARD TO
CABLE;BOX,4P,1R,1.25mm,S 1 SA
....4 T0077 BN41-01341A PCB MAIN;WHITE,FR-4,2,MP1.0,1.6 (mm),80 1 SNA
....4 BN97-03927U ASSY MICOM-OTZ,W/W;M-
WH23U0CAA-1004.0,20 1 SNA
.....5 IC115 1107-001580 IC-FLASH MEMORY;MX25L4005,4Mbit,512Kx8,S 1 SNA
....4 0403-001180 DIODE-ZENER;BZX84C6V2,5.8-
6.6V,350mW,SOT 3 SA
....4 IC109 1205-003964 IC-LCD CONTROLLER;SE979LMRD-
LF,PQFP,128P 1 SA
....4 AAC1 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,1608 1 SNA
....4 PC11 2203-006141 C-CER,CHIP;1000nF,10%,16V,X5R,1608 6 SNA
....4 D0254 0404-001307 DIODE-SCHOTTKY;SSC54,20V,5000mA,DO-
214AB 1 SA
....4 T0170 1203-003059 IC-SWITCH VOL. REG.;MP1583,SOIC,8P,4.9x3 1 SA
....4 PR27 2007-000144 R-CHIP;5.1Kohm,5%,1/16W,TP,1005 1 SNA
....4 2007-007132 R-CHIP;15Kohm,1%,1/16W,TP,1005 3 SA
....4 2007-007136 R-CHIP;4.7Kohm,1%,1/16W,TP,1005 1 SNA
....4 AD480 2203-000585 C-CER,CHIP;0.22nF,10%,50V,X7R,1005 2 SA
....4 T0010 BN27-00009A COIL CHOKE;SMD 12x12x6,EOS,33uH,15%,0.12 1 SA
....4 Q409 0505-002560 FET-SILICON;AO6415,P,-20V,-3.3A,0.15ohm, 1 SA
....4 Q409 0505-002572 FET-SILICON;AO4801AL,P,-30V,-5.6A,0.075o 1 SA
...3 CN906 3711-007374 CONNECTOR-
HEADER;BOX,12P,2R,2.5mm,ANGLE, 1 SA
...3 CN906 3707-001096 CONNECTOR-OPTICAL;STRAIGHT W/L,SPDIF 1 SA
..2 M0230 BN96-12447L ASSY CABLE P-FFC;White,FFC,1mm PITCH,154 1 SA
..2 M0006 BN96-13409A ASSY SHIELD P-COVER;WHITE 23,SECC T0.8 1 SNA
...3 T0073 AA63-00928A GASKET-EMI;PS37S4A,Conductive Fabric,1.0 4 SNA
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5-6
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
...3 T0514 BN61-06377A BRACKET-SUPPORT;WHITE 23",EGI-SECC,T0.8 1 SNA
...3 BN63-06403A SHIELD-MAIN;WHITE 23",SECC,T0.8 1 SNA
...3 T0073 BN63-04800A GASKET-EMI;T-MFM,Fabric Type,1.5mm,20mm, 1 SNA
..2 M0081 6003-000264 SCREW-TAPTYPE;PWH,+,-
,B,M3,L6,ZPC(WHT),S 3 SA
0.1 BN92-03163Q ASSY LABEL;LS22AQWJFV* W/W 1 SNA
..2 CCM1 BN68-01570A LABEL RATING;ALL,SS,PE,T0.05,90,45,Dark 1 SNA
0.1 BN92-05539A ASSY P/MATERIAL;WHITE 23 1 SNA
..2 T0214 0203-001595 TAPE-OPP MASKING;OPP-2,0.075,75,800M,CLR 1.54 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 6902-000604 BAG WRAPPING;LDPE,T0.02,W500,L10000,TRP, 1.35 SNA
..2 6902-000609 BAG ROLL;LDPE,T0.05,W2400,L1000,TRP,30.0 0.03 SNA
..2 T0524 6902-001067 BAG PE;HDPE/NITRON,T0.015/T0.5,W700,L600 1 SNA
..2 AA69-00368R PAD-PLATE;OTHER,940,YEL,1260 1 SNA
..2 T0527 BH68-40364A LABEL-SUMMARY;G52,G72,ART,100G,WHT,BL
K,W 1 SNA
..2 BH69-00457F PACKING INNER-PAD;ALL
MODEL,EPE,SHEET,W1 1 SNA
..2 T0527 BN68-00129A LABEL SHIPPING-00;LABEL SHIPPING,ART-PAP 1 SNA
..2 BN69-00391Y PAD-ANGLE;CB,T5,W2100,L50,YEL,403g 1 SNA
..2 T0603 BN69-00617B PALLET;MUSE 17",WOOD,1240,970,120 1 SNA
..2 T0246 BN69-04357A CUSHION-SET;FX2390,EPS,16.7g/l 1 SNA
0.1 BN92-05720G ASSY BOX;LS23WHUKF/XF 1 SNA
..2 T0077 BH68-00329D LABEL BAR CODE-02;NO CE,NO WT`Y,MPRII,LA 1 SNA
..2 BH68-00659F LABEL BOX-00;ALL MODEL,MOJO
90G,90,95,WH 1 SNA
..2 BN68-02258B LABEL-STICK HIC;MPX2370,CHINA,MOJO,80G,5 1 SNA
..2 BN69-04604A BOX-03,SET;FX2390,CB,A-01,SW2, ECT40,YEL 1 SNA
..2 M0245 BN96-02895A ASSY MISC P-01,HANDLE PACKING;ALL
MODEL, 1 SNA
...3 BN66-00007A LEVER-TOP;ALL MODEL,LDPE,WHITE,5.8g 1 SNA
...3 BN66-00008A LEVER-BOTTOM;ALL
MODEL,LDPE,WHITE,4.01g 1 SNA
0.1 ACCE1 BN92-05739D ASSY ACCESSORY;LS23WHUKF/XF 1 SNA
..2 M0114 BN39-00310D CBF SIGNAL-DVI(A);DVI(A) cable,15P/10P,U 1 SA
..2 M0158 BN44-00139C ADAPTOR;AD-3612S,WHITE,110/230V,50/60HZ, 1 SA
..2 M0027 BN96-12829A ASSY STAND P-BASE;WHITE 23,PMMA
3H,GY016 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 BN61-06038A BRACKET-STAND BOTTOM;WHITE 23",EGI-
SECC, 1 SNA
...3 CCM1 BN63-02183K COVER-SHEET;Rhcm,PE Vinyl,T 0.04,250MM,2 0.3 SNA
...3 BN63-06408A COVER-STAND BASE;WHITE
23",PMMA,3H,GY016 1 SNA
...3 BN63-06409A COVER-STAND BOTTOM;WHITE
23",HIPS,HB,BK2 1 SNA
...3 BN68-02304C LABEL-STICKER;WW,T0.05,50,10,LAVERDER 19 1 SNA
...3 BN68-02532A MANUAL FLYER-STAND;PX2370,WW,Mojo
80g,21 1 SNA
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5-7
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
...3 AR011 BN73-00077A RUBBER FOOT;MATISSE,BUMPON,#13.5,T2.0
,60 4 SNA
..2 ACCE1 BN96-13114R ASSY ACCESSORY;LS23WHUKFV/XF 1 SNA
...3 T0268 3903-000381 CBF-POWER CORD;DT,CHINA,LSG-
21,250/250V, 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 BN68-01789A MANUAL FLYER-WARRANTY CARD;Chinese,Art
11 SNA
...3 BN68-02186A MANUAL FLYER-TOC
GUIDE;COMM,SAMSUNG,10 L 1 SNA
...3 BN68-02533B MANUAL USERS-IB;PX2370,SC,Mojo 80g,210,1 1 SNA
0.1 BN91-04711B ASSY SHIELD-OTZ ONLY;WHITE 23 1 SNA
..2 T0073 AA63-01200A GASKET-EMI;42S5,Conductive Fabric TAPE,0 1 SNA
..2 CIS1 BN74-00021A TAPE-FILAMENT;Filament tape,clear,#8915, 0.24 SNA
..2 M0146 BN96-12842B ASSY BOARD P-FUNCTION
POWER;WHITE,Functi 1 SA
...3 M2893 BN39-01270A LEAD CONNECTOR;WHITE,UL 1061 #28,8P(1:1) 1 SA
...3 BN96-12842A ASSY BOARD P-FUNCTION
POWER;WHITE,Functi 1 SNA
....4 BN94-03208Z ASSY PCB MISC-POWER- MAIN;BN96-
12842A,WH 1 SNA
.....5 BN61-06030A GUIDE-LAMP;WIHTE 23",PMMA,GY0160,H/
GLOSS 1 SNA
.....5 BN61-06044A GUIDE-POWER;WHITE,ABS,GR70 1 SNA
.....5 BN64-01246A KNOB-DECORATION POWER;WHITE
23",PMMA+ABS 1 SNA
.....5 BN64-01247A INLAY-PLATE;WHITE 23",PET SHEET,T1.88 1 SNA
.....5 BN64-01248A KNOB-CONTROL MIRROR;WHITE
23',ABS,HB,WH1 1 SNA
.....5 T0174 BN97-03934Y ASSY SMD;WHITE POWER,BN41-0* 1 SNA
......6 0403-001339 DIODE-ZENER;UDZS6.2B,6.06-6.33V,200mW,SO 1 SA
......6 0406-001253 DIODE-TVS;VESD05A1-02V,6.0/6.8/7.5V,SOD- 1 SNA
......6 L0405 0601-002331 LED;SMD,(SIDE VIEW ),WHT,2.04mm 2 SNA
......6 IS01A 1209-001890 IC-SENSOR;CT1N07B,MLF,24P,4x4mm,PLAST
IC, 1 SA
......6 IS01A 1209-001934 IC-SENSOR;TSL27711FN,6P,2x2mm,3.6V,-30to 1 SA
......6 1405-001233 VARISTOR;30Vdc,5A,1.6x0.8x0.8mm,TP 2 SA
......6 R105 2007-000138 R-CHIP;100ohm,5%,1/16W,TP,1005 2 SNA
......6 HDR7 2007-000139 R-CHIP;220ohm,5%,1/16W,TP,1005 1 SNA
......6 DR39 2007-000162 R-CHIP;100Kohm,5%,1/16W,TP,1005 1 SNA
......6 R111 2007-000171 R-CHIP;0ohm,5%,1/16W,TP,1005 2 SNA
......6 VC37 2203-006048 C-CER,CHIP;100nF,10%,10V,X7R,TP,1005 1 SA
......6 C125 2203-006361 C-CER,CHIP;10000nF,10%,10V,X5R,TP,2012 1 SC
......6 AD480 2203-006399 C-CER,CHIP;1000nF,10%,6.3V,X5R,1005 2 SA
......6 HB01A 3711-005499 HEADER-BOARD TO
CABLE;BOX,8P,1R,1.25mm,S 1 SA
......6 BN41-01354A PCB SUB-FUNCTION;White,FR-4,2layer,1.0,1 1 SNA
..2 M0145 BN96-12843B ASSY BOARD P-FUNCTION
TACT;WHITE,Functio 1 SA
...3 M2893 BN39-01269A LEAD CONNECTOR;WHITE,UL 1061 #28,4P(1:1) 1 SA
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5-8
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
...3 BN96-12843A ASSY BOARD P-FUNCTION
POWER;WHITE,Functi 1 SNA
....4 BN94-03450A ASSY PCB MISC-F/PCB, MAIN;BN96-
12843A,WH 1 SNA
.....5 BN61-06033A GUIDE-CONTROL;WHITE
23",PMMA+ABS,BK23,H/ 1 SNA
.....5 T0022 BN64-01249A KNOB-CONTROL;WHITE
23",PMMA+ABS,HB,BK23, 1 SNA
.....5 T0174 BN97-03934Z ASSY SMD;WHITE F/PCB,BN41-0* 1 SNA
......6 1405-001233 VARISTOR;30Vdc,5A,1.6x0.8x0.8mm,TP 2 SA
......6 R329 2007-000081 R-CHIP;2.7Kohm,5%,1/10W,TP,1608 2 SNA
......6 AAR39 2007-000123 R-CHIP;1.5Kohm,5%,1/10W,TP,1608 2 SNA
......6 AC14 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,TP,1608 2 SNA
......6 T0313 3404-001379 SWITCH-TACT;12V,50mA,250gf,4.9x4.9x1.5mm 5 SA
......6 HB01A 3711-005509 HEADER-BOARD TO
CABLE;BOX,4P,1R,1.25mm,S 1 SA
......6 BN41-01355A PCB SUB-FUNCTION;White,FR-1,2layer,1.0,1 1 SNA
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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
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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.
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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.
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