Samsung Service Manual

LCD-MonitorChassis : LEF20VS

LEF22VSModel : P2070H

P2270H

SERVICE ManualTFT-LCD Monitor Contens

P2070H / P2270H

Refer to the service manual in the GSPN (see the rear cover) for the more information.

1. Precautions

2. Product specifications

3. Disassembly and Reassemble

4. Troubleshooting

5. Exploded View & Part List

6. Wiring Diagram

Contents1. Precautions

1-1. Safety Precautions ......................................................................................................... 1-11-2. Servicing Precautions ..................................................................................................... 1-21-3. Static Electricity Precautions .......................................................................................... 1-21-4. Installation Precautions .................................................................................................. 1-3

2. Product specifications2-1. Feature & Specifications ................................................................................................. 2-12-2. Spec Comparison to the Old Models .............................................................................. 2-32-3. Accessories .................................................................................................................... 2-42-4. Accessories (Sold separately) ........................................................................................ 2-5

3. Disassembly and Assembly3-1. Disassembly ................................................................................................................... 3-1

4. Troubleshooting4-1. Troubleshooting .............................................................................................................. 4-14-2. When the power does Not Turn on ................................................................................. 4-24-3. When the screen is blank (Analog) ................................................................................. 4-44-4. When a blank screen is displayed (Digital) ..................................................................... 4-74-5. When a blank screen is displayed (HDMI) ................................................................... 4-104-6. Error Examples and Actions ......................................................................................... 4-134-7. Adjustment .................................................................................................................... 4-14

5. Exploded View & Part List5-1. Exploded View (P2070H) ................................................................................................. 5-15-2. Parts List (P2070H) ......................................................................................................... 5-35-3. Exploded View (P2270H) ................................................................................................. 5-65-4. Parts List (P2270H) ......................................................................................................... 5-8

6. Wiring Diagram6-1. Wiring Diagram - Main Board ......................................................................................... 6-16-2. Wiring Diagram - IP Board .............................................................................................. 6-26-3. Connector Functions ...................................................................................................... 6-36-4. Cables ............................................................................................................................ 6-3

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.

2009 Samsung Electronics Co.,Ltd. All rights reserved.Printed in KoreaP/N: BN82-00797A-00

3-1

3. Disassembly and Assembly

3. Disassembly and AssemblyThis 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.

4. When assembling and disassembling the monitor, the gasket attached to the PCB may be detached from the PCB. Therefore, make sure to check whether it is attached to the PCB correctly. If it is detached from the PCB, make sure to reattach it.

Description Photo Screws

1. Placeasoftclothonthefloorandplacethemonitor on it so that the front of the monitor is on the cloth.

Caution: If you do not tilt the stand and use too much force to remove it, the connection pin may break.

2. Hold one edge of the FRONT-COVER and push it downwards to separate it.

3-2



3. Separate the other side in the same way.

4. Lift the REAR-COVER up to separate it.

5. Remove the FFC cable, the LED driver wire, the function wire and the two hex-head screws, and separate the DVI shield.

6. Remove the PBA bracket.

3-3



7. Separate the inverter and the main PBA from the PBA bracket.

P2070H

P2270H

The assembly is in the reverse order of disassembly.

3-4


Memo

5-1



5-1. LS22EFVKU/XF - Exploded View

T000

3

M02

15

M02

15

M00

14

M00

06

M00

13

MA

SB

1

M00

27

M00

20

5-2


5-1-1. LS22EFVKU/XF Parts List

Location No. Code No. Description & Specification Qty SA/SNA Remark

M0006 BN96-11906C ASSY SHIELD P-COVER;P2370H,SECC,T0.8 1 SNA

M0013 BN96-12301A ASSY COVER P-REAR;Ecofit21.6,BLACK,HB,BK 1 SA

M0014 BN94-03157A ASSY PCB MAIN;LS22EFVKUU/EN 1 SA

M0020 BN96-10522B ASSY BOARD P;Ecofit,Function Assy,With H 1 SA

M0027 BN96-11315A ASSY STAND P-BASE;ECOFIT,ROSE BLACK 1 SA

M0215 BN07-00622A LCD-PANEL;M216H1-L01,CM21H11,6bit Hi-FRC 1 SA

M0215 BN44-00308B INVERTER;Ecofit21.5,23"W,GH329B,60khz,14 1 SA

MASB1 BN96-09628C ASSY STAND P-BODY;ECOFIT,PC,ROSE BLACK 1 SA

T0003 BN96-09622J ASSY COVER P-FRONT;LS22EF,PMMA+ABS,ROSE 1 SC

5-3


5-2. LS22EFVKU/XF Parts List

Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE)

Level Location No. Code No. Description & Specification Qty SA/SNA Remark

0.1 BN90-02324A ASSY COVER FRONT;P2270H,ECOFIT 1 SNA

..2 T0003 BN96-09622J ASSY COVER P-FRONT;LS22EF,PMMA+ABS,ROSE 1 SC

...3 W392 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW 1 SA

...3 AB258 BN61-05849A BRACKET-PANEL;P2370H,SECC,T1.0 1 SNA

...3 BN63-01474G FELT-STAND;ECOFIT23"(P2370),T0.35,20,127 1 SNA

...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.04,680mm,20 0.6 SNA

...3 T0527 BN68-00798D LABEL-ENERGY,STAR;L/M,W/W,PET,T0.05,9.3, 1 SNA

...3 M0020 BN96-10522B ASSY BOARD P;Ecofit,Function Assy,With H 1 SA

....4 M0020 BN96-10522A ASSY BOARD P;Ecofit,Function Assy,Withou 1 SA

.....5 T0172 BN94-02622R ASSY PCB MISC-ECOFIT,F/PCB,BN96-10522A;E 1 SNA

......6 T0260 BN64-01023A KNOB-CONTROL MIRROR;ECOFIT 23",ABS,HB,WH 1 SNA

......6 T0186 BN64-01024A INLAY-PLATE;P2370,ECOFIT 23",PET SHEET,T 1 SNA

......6 BN74-00025A TAPE-FUNCTION TAPE;DOUBLE FACE TAPE,Poly 1 SNA

......6 BN74-00026A TAPE-FUNCTION TAPE;DOUBLE FACE TAPE,Poly 1 SNA

......6 T0174 BN97-03017N ASSY SMD;ECOFIT,F/PCB-SMD 1 SNA

.......7 L0405 0601-002331 LED;SMD,(SIDE VIEW ),WHT,2.04mm 6 SNA

.......7 FAR22 2007-000082 R-CHIP;3.3Kohm,5%,1/10W,TP,1608 1 SNA

.......7 AD480 2203-006618 C-CER,CHIP;2200nF,+80-20%,16V,Y5V,TP,160 2 SNA

.......7 HB01A 3711-005743 HEADER-BOARD TO CABLE;BOX,5P,1R,1.25mm,A 1 SA

.......7 BN41-01189A PCB-FUNCTION;Ecofit Function PCB,FR-4,2, 1 SNA

.......7 BN81-03258A A/S-MCS-5000 ECOFIT;ECOFIT PROJECT,1209- 1 SNA

....4 M2893 BN39-01164A LEAD CONNECTOR;ECOFIT,UL1571#30,5P,100mm 1 SA

...3 M0112 BN63-05426M COVER-FRONT;LS22EF(21.6),PMMA ABS,HB,TTP 1 SNA

0.1 M0002 BN90-02325A ASSY COVER REAR;P2270H,ECOFIT 1 SNA

..2 M0013 BN96-12301A ASSY COVER P-REAR;Ecofit21.6,BLACK,HB,BK 1 SA

...3 M0081 6003-001001 SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SWRC 1 SNA

...3 M0081 6003-001239 SCREW-TAPTYPE;FH,+,B,M4,L10,ZPC(WHT),SWR 2 SNA

...3 CIS4 BN61-05084A HOLDER-STAND;ECOFIT 23",ACETAL,WHITE 1 SNA

...3 T0060 BN61-05090A SPRING ETC;ECOFIT 23",SK5,T0.5 1 SNA

...3 T0060 BN61-05091A SPRING ETC-STAND;ECOFIT 23",SK5,T0.3 1 SNA

...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.04,680mm,20 0.7 SNA

...3 M0111 BN63-05442A COVER-STAND;P2370, ECOFIT 23",PMMA+ABS,H 1 SNA

...3 M0006 BN63-06192A COVER-REAR;ECOFIT 21.6",ABS+PMMA,HB,BK23 1 SNA

...3 BN63-06193A SHIELD-LAMP;ECOFIT 21.6",SPTE,T0.3 1 SNA

...3 BN73-00162A RUBBER-PANEL;943BW/NW,RUBBER,BLACK,(Wide 3 SNA

...3 M0131 BN63-00209A GASKET;RS24NS,CONDUCTIVE FAB,4mm,10mm,30 1 SNA

0.1 BN91-03053C ASSY LCD-CTZ;LS22MY* 1 SNA

5-4



..2 M0215 BN07-00622A LCD-PANEL;M216H1-L01,CM21H11,6bit Hi-FRC 1 SA

0.1 BN91-03699B ASSY SHIELD;P2270H,ECOFIT 1 SNA

..2 CIS1 BN74-00021A TAPE-FILAMENT;Filament tape,clear,#8915, 0.12 SNA

0.1 M0017 BN91-04511A ASSY CHASSIS;LS22EFVKUU/EN 1 SNA

..2 M0081 6003-001023 SCREW-TAPTYPE;PWH,+,-,B,M3,L10,ZPC(WHT), 2 SNA

..2 M0215 BN44-00308B INVERTER;Ecofit21.5,23"W,GH329B,60khz,14 1 SA

...3 M0014 BN94-03208U ASSY PCB MISC-MAIN;LS23EFP*,BN44-00308B, 1 SNA

....4 BN81-04470A A/S-CAPACITOR;NXH Series 220uF/35V 8*11 2 SNA

....4 BN81-04485A A/S-TRANSFORMER;GT-828,FD1323 4 SNA

....4 T0174 BN97-03934U ASSY SMD;IPB-M308B/ZB,BN41-0* 1 SNA

.....5 BN81-02499A A/S-FET-SILICON;0505-001902 1 SNA

.....5 BN81-04471A A/S-CAPACITOR;GRM188R71H103K,10nF,10%,X7 2 SNA

.....5 BN81-04472A A/S-CAPACITOR;GRM188R71H122K,1.2nF,10%,X 1 SNA

.....5 BN81-04473A A/S-CAPACITOR;GRM1885C1H561J,560pF,5%,CO 6 SNA

.....5 BN81-04474A A/S-CAPACITOR;GRM188R71A684K,680nF,10%,X 1 SNA

.....5 BN81-04475A A/S-CAPACITOR;GRM188R71H104K,100nF,10%,X 2 SNA

.....5 BN81-04476A A/S-CAPACITOR;GRM188F51E105Z,1uF,-20%~80 3 SNA

.....5 BN81-04477A A/S-CAPACITOR;GRM188R71E473K,47nF,10%,X7 2 SNA

.....5 BN81-04478A A/S-CAPACITOR;GRM21BR61E475K,4.7uF,10%,X 4 SNA

.....5 BN81-04479A A/S-RESISTOR;MCR03EZPJ104,100K#,1/10W,16 1 SNA

.....5 BN81-04480A A/S-IC;BD9893F,CCFL Controller 1 SNA

.....5 BN81-04481A A/S-FET;APM4548AK,30V7.4A,-30/-6A, SO-8 2 SNA

.....5 BN81-04482A A/S-ZENER-DIODE;UDZS12B,Vz11.74~12.24V,I 1 SNA

.....5 BN81-04483A A/S-ZENER-DIODE;UDZS16B,Vz15.85~16.51V,I 2 SNA

.....5 BN81-04484A A/S-ZENER-DIODE;UDZS9.1B,Vz8.85V~Vz9.23V 2 SNA

.....5 BN81-04486A A/S-FUSE;CCF1N5TTE,100Vdc, 5A 1 SNA

.....5 BN81-04487A A/S-CONNECTOR;12507WR-12L,1.25mm Pitch, 1.000 SNA

.....5 BN81-04488A A/S-CONNECTOR;35001WR-04L 2 SNA

.....5 M0561 BN81-04489A A/S-PCB;GH329B,REV1.0,110*75,1.0T 1 SNA

.....5 BN81-00608A A/S-DIODE-ARRAY;0407-000122,-,-,-,-,-,- 10 SNA

.....5 BN81-00610A A/S-TR-SMALL SIGNAL;0501-000457,-,-,-,-, 1 SNA

.....5 BN81-00639A A/S-R-CHIP;2007-000308,-,-,-,-,-,- 1 SNA

.....5 BN81-01132A A/S-R-CHIP;2007-000090 2 SNA

.....5 BN81-01353A A/S-R-CHIP;2007-000060,-,-,-,-,-,- 3 SNA

.....5 BN81-01357A A/S-R-CHIP;2007-000130,-,-,-,-,-,- 2 SNA

.....5 BN81-01358A A/S-R-CHIP;2007-000247,-,-,-,-,-,- 3 SNA

.....5 BN81-01366A A/S-R-CHIP;2007-000910,-,-,-,-,-,- 1 SNA

.....5 BN81-01371A A/S-R-CHIP;2007-001206,-,-,-,-,-,- 1 SNA

.....5 BN81-01982A A/S-R-CHIP;2007-000067 1 SNA

.....5 BN81-01987A A/S-R-CHIP;2007-001096 1 SNA

.....5 BN81-01988A A/S-R-CHIP;2007-001116 1 SNA

.....5 BN81-02528A A/S-R-CHIP;2007-000219 1 SNA

.....5 BN81-02829A A/S-R-CHIP;2007-000026 4 SNA

.....5 BN81-02908A A/S-CHIP-RESISTOR;2007-000052 1 SNA

5-5






.....5 BN81-04507A A/S-R-CHIP;2007-000075 4 SNA

.....5 BN81-04508A A/S-R-CHIP;2007-000103 1 SNA

.....5 BN81-04509A A/S-R-CHIP;2007-000119 1 SNA

.....5 BN81-04510A A/S-R-CHIP;2007-000402 2 SNA

.....5 BN81-04511A A/S-R-CHIP;2007-000726 4 SNA

.....5 BN81-04512A A/S-R-CHIP;2007-000965 2 SNA

.....5 BN81-04513A A/S-R-CHIP;2007-007352 1 SNA

..2 M0014 BN94-03157A ASSY PCB MAIN;LS22EFVKUU/EN 1 SA

...3 0202-001463 SOLDER-WIRE;LFC2-W3.0,-,D3,99.79Sn/0.2Cu 0.713 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 8.34 SNA

...3 0204-002607 FLUX;DF-234U,13%,14KG,Gravity 0.82 5.424 SNA

...3 3701-001606 CONNECTOR-DVI;29P,3ROW,FEMALE,STARAIGHT, 1 SNA

...3 JA330 3722-001061 JACK-PHONE;1P,3.6PI,AG,BLK,N 1 SA

...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 BN97-03837A ASSY SMD;LS22EFVKUU/EN 1 SNA

....4 0202-001477 SOLDER-CREAM;LST309-M,D20~45um,96.5Sn/3A 1.256 SNA

....4 HD7 0401-000008 DIODE-SWITCHING;DAN217,80V,100MA,SOT-23, 2 SA

....4 DS01A 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO 3 SA

....4 D0254 0402-000553 DIODE-SCHOTTKY;SS24/B240,40V,2000mA,DO-2 1 SA

....4 DR01A 0402-001614 DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP 2 SA

....4 0403-000258 DIODE-ZENER;BZX84C5V6,5.2-6V,225mW,SOT-2 1 SA

....4 0403-001180 DIODE-ZENER;BZX84C6V2,5.8-6.6V,350mW,SOT 1 SA

....4 MZD1 0403-001411 DIODE-ZENER;5.49-5.73V,200mW,SOD-323,TP 9 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 1 SA

....4 D0254 0404-001307 DIODE-SCHOTTKY;SSC54,20V,5000mA,DO-214AB 1 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 3 SA

....4 PQ02 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 11 SA

....4 Q409 0505-001165 FET-SILICON;Si3443CDV,P,-20V,+-4.4A,65mo 2 SA

....4 Q409 0505-001170 FET-SILICON;FDS9933A,P,-20V,3.8A,0.075oh 2 SA

....4 Q409 0505-001957 FET-SILICON;NTR2101P,P,-8V,-3.7A,0.052oh 1 SA

....4 IC106 1001-001496 IC-VIDEO SWITCH;PI3HDMI1210ABEX,HDMI/DVI 1 SA

....4 IC107 1002-001482 IC-D/A CONVERTER;WM8521H9GED/R,16bit,SOI 1 SA

5-6



....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 1201-002271 IC-AUDIO AMP;APA2068,SOP,16P,150MIL,DUAL 1 SA

....4 1202-000104 IC-VOLTAGE COMP.;393,SOP,8P,150MIL,DUAL, 1 SA

....4 T0087 1203-002835 IC-POSI.FIXED REG.;KIA7805AF,DPAK,3P,6.6 1 SA

....4 T0170 1203-003059 IC-SWITCH VOL. REG.;MP1583,SOIC,8P,4.9x3 2 SA

....4 T0087 1203-003695 IC-POSI.FIXED REG.;NCP1117ST33T3G,SOT-22 2 SA

....4 T0087 1203-003696 IC-POSI.FIXED REG.;NCP1117DT18T5G,DPAK,3 1 SA

....4 1205-003201 IC-BUS SWITCH;TC7WB125FK,SSOP,8P,2x2.3mm 2 SA

....4 IC109 1205-003765 IC-LCD CONTROLLER;SE859MRD-LF,PQFP,128P, 1 SNA

....4 1405-001233 VARISTOR;30Vdc,5A,1.6x0.8x0.8mm,TP 3 SA

....4 PR4 2007-000052 R-CHIP;10Kohm,1%,1/10W,TP,1608 2 SNA

....4 KR24 2007-000067 R-CHIP;15Kohm,1%,1/10W,TP,1608 1 SNA

....4 KAR21 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 8 SNA

....4 CER02 2007-000071 R-CHIP;22ohm,5%,1/10W,TP,1608 13 SNA

....4 R863 2007-000073 R-CHIP;91ohm,5%,1/10W,TP,1608 2 SNA

....4 AR30 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 18 SA

....4 RR2 2007-000075 R-CHIP;220ohm,5%,1/10W,TP,1608 2 SA

....4 AR150 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 5 SA

....4 R331 2007-000079 R-CHIP;1.8Kohm,5%,1/10W,TP,1608 2 SA

....4 FMR4 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 2 SNA

....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 13 SA

....4 MR19 2007-000087 R-CHIP;6.8Kohm,5%,1/10W,TP,1608 1 SNA

....4 MROP1 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 29 SA

....4 KAR9 2007-000093 R-CHIP;20Kohm,5%,1/10W,TP,1608 3 SNA

....4 AR108 2007-000097 R-CHIP;47Kohm,5%,1/10W,TP,1608 1 SA

....4 ARR2 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 7 SA

....4 DR10 2007-000113 R-CHIP;33ohm,5%,1/10W,TP,1608 5 SNA

....4 KAR11 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 1 SNA

....4 R15 2007-000134 R-CHIP;33Kohm,5%,1/10W,TP,1608 1 SNA

....4 R2136 2007-000239 R-CHIP;1.5Kohm,1%,1/10W,TP,1608 1 SNA

....4 MR112 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 10 SA

....4 HR13 2007-000821 R-CHIP;390ohm,1%,1/10W,TP,1608 2 SNA

....4 AR61 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 4 SNA

....4 AAR99 2007-000910 R-CHIP;43Kohm,1%,1/10W,TP,1608 1 SA

....4 AR39 2007-000965 R-CHIP;5.1Kohm,5%,1/10W,TP,1608 2 SA

....4 WR15B 2007-001044 R-CHIP;56ohm,5%,1/10W,TP,1608 2 SA

....4 AR2 2007-001068 R-CHIP;6.8Kohm,1%,1/10W,TP,1608 1 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 12 SNA

....4 AC14 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,TP,1608 14 SNA

....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 9 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 C212 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 2 SA

....4 ZC14 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 1 SNA

5-7



....4 AAC14 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608 6 SA

....4 6MC22 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- 1 SNA

....4 AC28 2203-001607 C-CER,CHIP;0.22nF,5%,50V,NP0,1608 2 SA

....4 C178 2203-002793 C-CER,CHIP;1000nF,+80-20%,25V,Y5V,2012 1 SNA

....4 DC108 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 47 SC

....4 C100 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 9 SNA

....4 AD480 2203-005342 C-CER,CHIP;82nF,10%,16V,X7R,TP,1608 1 SA

....4 AD480 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 2 SNA

....4 PC11 2203-006141 C-CER,CHIP;1000nF,10%,16V,X5R,1608 1 SNA

....4 AD480 2203-006333 C-CER,CHIP;10000nF,20%,16V,X5R,TP,3216 4 SNA

....4 AD480 2203-006336 C-CER,CHIP;10000nF,10%,25V,X5R,3216 15 SA

....4 C125 2203-006361 C-CER,CHIP;10000nF,10%,10V,X5R,TP,2012 38 SC

....4 C 2402-001128 C-AL,SMD;100uF,20%,16V,TP,6.3x5.7mm 2 SA

....4 C 2402-001257 C-AL,SMD;470uF,20%,16V,TP,8.3x10mm 1 SA

....4 T0052 2703-001778 INDUCTOR-SMD;3.3uH,20%,3225 1 SA

....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 T0121 3301-000316 CORE-FERRITE BEAD;120ohm,2012,TP 1 SNA

....4 L2011 3301-001145 BEAD-SMD;60ohm,4516,TP,70ohm/45MHz,82ohm 2 SNA

....4 T0568 3301-001176 BEAD-SMD;80ohm,2012,TP,-,- 2 SNA

....4 T0568 3301-001404 BEAD-SMD;30ohm,2012,TP,15.9OHM/30MHz 2 SA

....4 T0568 3301-001407 BEAD-SMD;30ohm,1608,300mA,TP,,,0.4ohm 3 SNA

....4 BD401 3301-001569 BEAD-SMD;600ohm,2012,1000mA,TP,520ohm/90 2 SNA

....4 3601-001374 FUSE-SURFACE MOUNT;32V,5A,FAST-ACTING,Hi 1 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 3711-005471 HEADER-BOARD TO CABLE;BOX,12P,1R,1.25mm, 1 SA

....4 HB01A 3711-005743 HEADER-BOARD TO CABLE;BOX,5P,1R,1.25mm,A 1 SA

....4 T0010 BN27-00009A COIL CHOKE;SMD 12x12x6,EOS,33uH,15%,0.12 2 SA

....4 M0018 BN97-03838A ASSY MICOM;ECOFIT,P2270H 1 SNA

.....5 IC115 1107-001580 IC-FLASH MEMORY;MX25L4005,4Mbit,512Kx8,S 1 SNA

....4 R893B 2007-000122 R-CHIP;1.2Kohm,5%,1/10W,TP,1608 1 SNA

....4 T0077 BN41-01308A PCB MAIN;Ecofit P2370H,FR-4,2,MP1.0,1.6 1 SNA

..2 M0006 BN96-11906C ASSY SHIELD P-COVER;P2370H,SECC,T0.8 1 SNA

...3 T0073 AA63-00841A GASKET-EMI;HP-P5581,Conductive Fabric,1. 3 SNA

...3 BN61-05592A HOLDER-SUB PCB;P2570,PC+ABS,5V,BK25 1 SNA

...3 M0131 BN63-03474A GASKET;HUBBLE 27",Polyurethane+Polyester 1 SNA

...3 T0073 BN63-04800A GASKET-EMI;T-MFM,Fabric Type,1.5mm,20mm, 1 SNA

...3 BN63-05893C SHIELD-MAIN;P2370H,SECC,T0.8 1 SNA

..2 M2893 BN39-00419E LEAD CONNECTOR;ECOFIT 25inch,UL1571#30,1 1 SA

..2 M0230 BN96-08740M ASSY CABLE P-FFC;ECOFIT LED,FFC Cable,76 1 SA

..2 M0131 BN63-00542A GASKET;POSEIDON22,CONDUCTIVE FAB,10MM,10 1 SNA

..2 M0131 BN63-03861A GASKET;CAPRI,Conductive Fabric(Taffeta), 1 SNA

..2 T0562 6046-001014 STAND OFF;#4-40,L6,NI PLT,C3601 2 SNA

0.1 BN92-03163Q ASSY LABEL;LS22AQWJFV* W/W 1 SNA

5-8



..2 CCM1 BN68-01570A LABEL RATING;ALL,SS,PE,T0.05,90,45,Dark 1 SNA

0.1 BN92-05387A ASSY P/MATERIAL;LS22EFVKUU/EN 1 SNA

..2 T0214 0203-001595 TAPE-OPP MASKING;OPP-2,0.075,75,800M,CLR 1.6 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 SNA

..2 6902-000609 BAG ROLL;LDPE,T0.05,W2400,L1000,TRP,30.0 0.02 SNA

..2 T0524 6902-001067 BAG PE;HDPE/NITRON,T0.015/T0.5,W700,L600 1 SNA

..2 T0527 BH68-40364A LABEL-SUMMARY;G52,G72,ART,100G,WHT,BLK,W 1 SNA

..2 BH69-00457C PACKING INNER-00,PAD;COMM,T3.0,880,1320, 1 SNA

..2 T0527 BN68-00129A LABEL SHIPPING-00;LABEL SHIPPING,ART-PAP 1 SNA

..2 BN69-00391P PAD-ANGLE;T4,50,2200,YEL,56g 1 SNA

..2 T0603 BN69-00617D PALLET-PACKING;WOOD-WoodEN,1300,830,120 1 SNA

..2 BN69-03565A PAD-PLATE;P230S,CB,SW,YEL,W1300,D800,800 1 SNA

..2 T0246 BN69-04182A CUSHION-SET;P2270H,EPS,EPS,WHITE,-g 1 SNA

0.1 BN92-05388R ASSY BOX;LS22EFVKU/XF 1 SNA

..2 BN68-02258H LABEL-STICKER HIC;MODEL5,CHINA,MOJO,80G, 1 SNA

..2 BN69-04191A BOX-03,SET;P2270H,CB,SW,A1,YEL,W647,D406 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

..2 T0527 BH68-00634A LABEL BOX-00;ALL MODEL,MOJO 90G,80,75,WH 1 SNA

..2 BH68-00658A LABEL BOX-00;ALL MODEL,MOJO 90G,80,75,WH 1 SNA

0.1 M0045 BN92-05513E ASSY ACCESSORY;LS22EFVKU/XF 1 SNA

..2 M0114 BN39-00310D CBF SIGNAL-DVI(A);DVI(A) cable,15P/10P,U 1 SA

..2 M0158 BN44-00129C ADAPTOR;SAD4914F-UV,ECOFIT NORMAL,110/23 1 SA

...3 BN94-03208G ASSY PCB MISC-ADAPTOR,BN44-00129C;ECOFIT 1 SNA

....4 BN81-02978A A/S-THREAD LOCKER;762,760G,0201-003005 0.001 SNA

....4 BN81-02979A A/S-ADHESIVE SEALANT;TSE3854-DW,SILICONE 0.005 SNA

....4 BN81-02987A A/S-TAPE PE;73mm(W) * 50M(L) 0.025T UL#E 0.2 SNA

....4 BN81-02989A A/S-DIODE-BRIDGE;0402-000003 1 SNA

....4 BN81-02996A A/S-PHOTO-COUPLER;0604-000001 1 SNA

....4 BN81-02999A A/S-THERMISTOR-NTC;1404-000003 1 SNA

....4 BN81-03032A A/S-CAP-FILM;2305-000012 1 SNA

....4 BN81-03033A A/S-CAP-FILM;2305-000014 1 SNA

....4 BN81-03039A A/S-FERRITE-BEAD FILTER;3301-002073 1 SNA

....4 BN81-03041A A/S-FERRITE-BEAD CORE;3301-002075 2 SNA

....4 BN81-03043A A/S-SCREW-M;6001-000004 2 SNA

....4 BN81-03044A A/S-NUT-HEXAGON;6021-000001 2 SNA

....4 BN81-03045A A/S-HEAT SINK;6203-000008 1 SNA

....4 BN81-03055A A/S-LABEL-HIPOT;MB68-00001A 1 SNA

....4 BN81-03058A A/S-CASE-TOP;MB72-00003A 1 SNA

....4 BN81-03059A A/S-CASE-BOTTOM;MB72-00003B 1 SNA

....4 BN81-03061A A/S-IN-LET;MB75-30002A 1 SNA

5-9



....4 BN81-03062A A/S-INSULATION-SHEET;MB75-40001A 2 SNA

....4 BN81-03063A A/S-INSULATOR-RING;MB75-40012A 2 SNA

....4 BN81-04115A A/S-DIODE-SCH;0404-000016 1 SNA

....4 BN81-04116A A/S-DIODE-UF;0409-000010 2 SNA

....4 BN81-04117A A/S-FET-N MOS;0505-000010 1 SNA

....4 BN81-04120A A/S-SCR;1401-000001 1 SNA

....4 BN81-04121A A/S-VARISTOR;1405-000005 1 SNA

....4 BN81-04122A A/S-RESISTOR-MOR;2001-100003 1 SNA



....4 BN81-04132A A/S-CAP-C DS;2201-000001 2 SNA

....4 BN81-04133A A/S-CAP-C DS;2201-000008 1 SNA

....4 BN81-04134A A/S-CAP-C DS;2201-100003 1 SNA

....4 BN81-04137A A/S-CAP-E AL;2401-100005 1 SNA

....4 BN81-04138A A/S-CAP-E AL;2401-400013 1 SNA

....4 BN81-04139A A/S-CAP-E AL;2401-400014 2 SNA

....4 BN81-04140A A/S-CAP-E AL;2401-400015 1 SNA

....4 BN81-04141A A/S-LINE-FILTER;2902-000016 1 SNA

....4 BN81-04142A A/S-LINE-FILTER;2902-000017 1 SNA

....4 BN81-04143A A/S-FUSE;3601-000010 1 SNA

....4 BN81-04144A A/S-JUMP WIRE;3712-000004 1 SNA

....4 BN81-04145A A/S-HEAT SINK;6203-000007 1 SNA

....4 BN81-04146A A/S-LABEL;MB68-00113A 1 SNA

....4 BN81-04147A A/S-INSULATOR;MB75-40003A 2 SNA

....4 BN81-04149A A/S-DC CABLE ASS;MB84-20055A 1 SNA

....4 BN81-04150A A/S-TAPE PE;MA02-00017A 0.2 SNA

....4 BN81-04188A A/S-TRANS-PULSE;2602-000011 1 SNA

....4 BN97-03875H ASSY SMD-ADAPTOR,BN44-00129C;ECOFIT,* 1 SNA

.....5 BN81-02988A A/S-DIODE-SWG;0401-000002 1 SNA

.....5 BN81-03001A A/S-THERMISTOR-CHIP;1404-000005 1 SNA

.....5 BN81-03007A A/S-RES-CHIP;2007-300003 1 SNA








.....5 BN81-03028A A/S-CAP-C MLCC;2203-100002 1 SNA


.....5 BN81-03047A A/S-EYELET;6402-000001 5 SNA

.....5 BN81-03048A A/S-EYELET;6402-000002 3 SNA

.....5 BN81-04114A A/S-DIODE-ZENER;0403-000002 1 SNA

.....5 BN81-04118A A/S-IC-PWM CONTROLLER;0904-000010 1 SNA

.....5 BN81-04119A A/S-IC-SHUNT REGULATOR;1203-000001 1 SNA







5-10






.....5 BN81-04148A A/S-PCB-MAIN;MB81-10025A 1 SNA




..2 MASB1 BN96-09628C ASSY STAND P-BODY;ECOFIT,PC,ROSE BLACK 1 SA

...3 T0524 6902-000023 BAG PE;LDPE,T0.08,W150,L120,TRP,1.650g 1 SNA

...3 T0069 BN60-00119B SPACER-FELT;ECOFIT 23"(P2370),FELT,L145, 1 SNA

...3 BN61-05095B STAND-BAR;ECOFIT 23",PMMA,CLEAR(ROSE BLA 1 SNA

....4 BN61-05094A STAND-BAR IN;P2370, ECOFIT 23",PC CLEAR, 1 SNA

....4 BN61-05410B STAND-BAR A;LB650 19",22",PC,TRD03(ROSE 1 SNA

.....5 BN61-02932E BRACKET-STOPPER NUT;ECOFIT 20,M4,D8,L12, 1 SNA

...3 CCM1 BN63-02183C COVER-SHEET;Rhcm,PE Vinyl,T0.04,200mm,20 0.1 SNA

...3 BN68-02304D LABEL-STICKER;WW,T0.05,50,10,ECOFIT 20"~ 1 SNA

..2 M0027 BN96-11315A ASSY STAND P-BASE;ECOFIT,ROSE BLACK 1 SA

...3 M0081 6003-001001 SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SWRC 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 BN63-05908A COVER-STAND BASE;P2370,PMMA+ABS,HB,RD03, 1 SNA

...3 BN63-05909A COVER-STAND BOTTOM;P2370,HIPS,HB,WH13 1 SNA

...3 BN68-02009B MANUAL FLYER-STAND;Ecofit,Lavender,Mojo 1 SNA

...3 AR011 BN73-00077A RUBBER FOOT;MATISSE,BUMPON,#13.5,T2.0,60 4 SNA

...3 BN68-02304C LABEL-STICKER;WW,T0.05,50,10,LAVERDER 19 1 SNA

..2 M0045 BN96-12249V ASSY ACCESSORY;LS22EFVKU/XF 1 SA

...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 SNA

...3 T0527 BN68-00513A LABEL-E,PASS;ALL MODEL,YUPO(110G),50X15, 1 SNA

...3 BN68-01789A MANUAL FLYER-WARRANTY CARD;Chinese,Art 1 1 SNA

...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,10 L 1 SNA

...3 BN68-02483B MANUAL FLYER-CHINA;P2070H,P2270H,SyncMas 1 SNA

1-1

1. Precautions

1. Precautions

1-1. Safety PrecautionsFollow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock.

1-1-1. WarningsFor 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 MonitorWhen 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 of 2. this meter periodically.

1-1-3. Fire and Shock HazardBefore 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 the 1. chassis and other metal parts in the monitor.

Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and 2. 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 units AC switch 4. 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 NoticesSome 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.

DEVICEUNDERTEST

(READING SHOULD) NOT BE ABOVE 0.5mA

LEAKAGECURRENTTESTER

TEST ALLEXPOSED METALSURFACES

2-WIRE CORD

*ALSO TEST WITHPLUG REVERSED(USING AC ADAPTERPLUG AS REQUIRED) EARTH

GROUND Figure 1-1. Leakage Current Test Circuit

1-2

1. Precautions

1-2. Servicing PrecautionsWARNING: 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 PrecautionsAlways unplug the units AC power cord from the AC power source and disconnect the DC Power Jack before 1. 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 sometimes 2. 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 that 3. 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 instruments ground lead to the instrument chassis ground before connecting the positive lead; 6. always remove the instruments ground lead last.

1-3. Static Electricity PrecautionsSome 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.

Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your 1. 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 prevent 2. accumulation of an electrostatic charge.

Do not use freon-propelled chemicals. These can generate electrical charges sufficient 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 classified as anti-static can generate 5. electrical charges sufficient to damage ESDs.

Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs 6. 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 protective 7. 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 floor can generate enough static electricity to damage an ESD.

1-3

1. Precautions

1-4. Installation PrecautionsFor 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 fire or electric shock.2.

Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal 3. temperature may cause fire.

Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed 4. to moisture. Otherwise, it may cause a fire or electric shock.

Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check 5. the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric shock.

Keep the antenna far away from any high-voltage cables and install it firmly. Contact with the highvoltage cable or the 6. antenna falling over may cause fire 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 fire.

1-4

1. Precautions

Memo

2-1



2-1. Feature & Specifications

Model P2070H / P2270H

Feature

Panel Specification : - P2070H : 250cd/m2 , 5ms (G to G 2ms), CR 1000:1 (DCR 50000:1), 170 / 160 - P2270H : 300cd/m2 , 5ms (G to G 2ms), CR 1000:1 (DCR 70000:1), 170 / 160

DPMS : - P2070H :

2-2


Specifications

Item Description

Models Sync Master P2070H Sync Master P2270H

Environmental Considerations Operating Temperature: 10C ~ 40C(50F ~ 104F)Operating Humidity : 10% ~ 80% , non-condensingOperating Temperature: -20C ~ 45C(-4F ~ 113F)Operating Humidity: 5% ~ 95% , non-condensing

Note: Designs and specifications are subject to change without prior notice.

2-3


2-2. Spec Comparison to the Old Models

Model P2070H / P2270H T (T240)

Design

Brightness 20 250cd/m222 300cd/m2 300cd/m2

Contrast 1000:1 1000:1

DCR 20 50,000:122 70,000:1 20,000:1

Response Time 5ms ( W to B) & 2ms (G to G) 5ms (W to B)

Input DVI-I (Analog/Digital) / HDMI Analog/Digital/HDMI

Color Effect Gray/Green/Aqua/Sepia Mode Gray/Green/Aqua/Sepia Mode

Magic Tune Premium Premium

Magic Bright 7 steps (Text / Internet / Game / Sports / Movie / Dynamic CR / Custom)7 steps (Text / Internet / Game / Sports /

Movie / Dynamic CR / Custom)

Gamma 3 stepsMode1 / Mode2 / Mode33 steps

Mode1 / Mode2 / Mode3

Color Tone 4 stepsCool / Normal / Warm / Custom4 steps

Cool / Normal / Warm / Custom

Feature

Magic ColorColor EffectImage Size

Magic Bright3Magic Tune(Premium)

Magic ColorColor EffectImage Size

Magic Bright3Magic 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.

2-4


2-3. AccessoriesProduct Description Code. No Remark

Quick Setup Guide BN68-02390A

Samsung Electronics Service center

Warranty Card(Not available in all locations)

P2070H : BN68-02001AP2270H : BN68-01925F

Users Guide,Monitor Driver,

Natural Color software,MagicTune software

BN59-00967A

Stand Body BN96-09628C

Stand Base BN96-11315A

CBF SIGNAL-DVI(I) to D-sub 1,500mm(1.5M) BN39-00310D

Power Cord 1,830mm(1.8M) 3903-000085

Adator (P2070H : 12V/3A)

(P2270H : 14V/4.5A)

P2070H : BN44-00139AP2270H : BP44-01005A

Cleaning Cloth 160mm x 120mm BN63-02368B

2-5


2-4. Accessories (Sold separately)

Product Description Ccde. No Remark

DVI Cable 1,500mm(1.5M) BN39-00246L

Samsung Electronics Service center

HDMI Cable MD39-00116A

2-6


Memo

4-1

4. Troubleshooting

4. Troubleshooting

4-1. TroubleshootingSet custom mode as follows before beginning a repair. 1. P2070H - Resolution : 1600 X 900 - H-Frequency : 60.000kHz - V-Frequency : 60.000Hz P2270H - Resolution : 1920 X 1080 - H-Frequency : 67.500kHz - V-Frequency : 60.000Hz

If the screen is blank, check whether the power cord is connected correctly.2.

The circuits to check: 3. When the raster does not appear: Function PBA, Main PBA, Inverter, Adapter When 5V is generated but a blank screen is displayed : Main PBA When 12V (P2070H) / 14V (P2270H) is not Generated : Adapter

Press the MENU button and hold down the, 4. (Enter, Source) button for more than five (5) seconds to return the monitor to factory mode.

4-2

4. Troubleshooting

4-2. When the power does Not Turn on

Symptom - When turning on the power button after connecting Adaptor, the LED at the front of the monitor does not operate.

Major checkpoints

- Check the Adaptor power fuse and the Adaptor output power.- Check the connections for Adaptor 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

Diagnostics

IC602

IC601

CN700

Yes

Check the connection status for the function assy.

Yes

Replace the Adaptor.NoIs DC12V measured at pins2 of the CN700 connector when pins 1,3 are

0V?

Is DC5V measured at C222 when pin2 of IC202 is DC 12V?

Check the circuits related to IC202.

No

Yes


NoIs DC3.3V measured at pin3 of the IC605 when pin1 is DC 5V?

Yes

Check and replace the Adaptor.



Yes



Yes

Caution Make sure to disconnect the power before working on the Adaptor.

4-3

4. Troubleshooting

4-2-1. Circuit diagrams when the power does not turn on

4-4

4. Troubleshooting

4-3. When the screen is blank (Analog)

Symptom - Even though the LED power turns on, the screen is blank when connecting the DVI-I to D-sub cable.

Major checkpoints- Check the DVI-I to D-sub cable connections.- Check whether the LVDS(FFC) cable is connected correctly to the panel.- Check whether the lamp connector of the panel is connected correctly to the Inverter.

Diagnostics

CN601CN400

X201

IC101

IC200

CN700

Yes

No Check the R113, R117 and R120 input terminals.

No Check the circuits related to IC200.

No Check the circuits related to CN400.

Do output signals appear at pins 8 to 30 of CN400?

NoIs DC 5V measured at pins 1, 2 and 3 of CN400?

Do the Hsync and Vsync waveforms appear at pins 32, 33 of

IC200, respectively?

Do the RGB inputs appear at R113, R117 and R120 of CN102?

Is X201 oscillating correctly?

Check and replace the panel.

No Check and replace the circuits related to X201.

Yes

Yes

Yes

Check the +5V_PANEL signal and the BL_EN signal.

Yes

Check the signal cables and their connections.

Yes


4-5

4. Troubleshooting

4-3-1. When a blank screen is displayed (Analog)

4-6

4. Troubleshooting

4-3-2. Waveforms when no screen is displayed (Analog)

4-7

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.

Major checkpoints- Check the DVI cable connections.- Check whether the LVDS(FFC) cable is connected correctly to the panel.- Check whether the lamp connector of the panel is connected correctly to the Inverter.

Diagnostics

CN601CN400

X201

IC101

IC200

CN700

Yes

Check and replace the circuits related to X201.

No Is X201 oscillating correctly?

Do the RGB inputs appear at R100 to R105 of CN102?

Check the R100 to 105 input terminals.

No

Yes


Check the circuits related to CN400.

No

Yes

Is DC 5V measured at pins 1, 2 and 3 of CN400?


No

Yes

Are IC101 inputs/ outputs and signals correctly inputted and outputted?


Yes

Yes

Check and replace the Panel.


No


4-8

4. Troubleshooting

4-4-1. Circuit diagrams when a blank screen is displayed (Digital)

4-9

4. Troubleshooting

4-4-2. Waveforms when a blank screen is displayed (Digital)

1 2

4-10

4. Troubleshooting

4-5. When a blank screen is displayed (HDMI)

Symptom - Even though the LED power turns on, the screen is blank when connecting the HDMI cable.

Major checkpoints- Check the HDMI cable connections.- Check whether the LVDS(FFC) cable is connected correctly to the panel.- Check whether the lamp connector of the panel is connected correctly to the Inverter.

Diagnostics

CN601CN400

X201

IC101

IC200

CN700

Yes

Check and replace the circuits related to X201.

No Is X201 oscillating correctly?

Do the RGB inputs appear at R134 to R140 of CN703?

Check the R134 to 140 input terminals.

No

Yes


Check the circuits related to CN400.

No

Yes

Is DC 5V measured at pins 1, 2 and 3 of CN400?


No

Yes

Are IC101 inputs/ outputs and signals correctly inputted and outputted?


Yes

Yes

Check and replace the Panel.


No


4-11

4. Troubleshooting

4-5-1. Circuit diagrams when a blank screen is displayed (HDMI)

4-12

4. Troubleshooting

4-5-2. Waveforms when a blank screen is displayed (HDMI)

1 2

4-13

4. Troubleshooting

4-6. Error Examples and ActionsError Appearance Symptoms and Actions Remarks

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.

*On how to input DDC, refer to the training manual.

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.

* A Full White pattern is a feature of a TN panel when no video signals are

supplied.

Symptom: When connecting the DVD, noise occurs on the screen.

Cause: The HDCP key is not inserted.

Action: Enter the HDCP key.

4-14

4. Troubleshooting

4-7. Adjustment

4-7-1. Service Adjustment ConditionsPrecautions before a Service Adjustment 1. 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.

Entering Service Mode 2.

Entering: Menu Brightness 0 Contrast 0 Hold down the Enter button for five (5) seconds.

Exiting: Power OFF Power ON

Basic Service Items to Perform after Replacing a Board 3. 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.

DDC EDIT Data Input 4. 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 needingadjustment

Parallel Connector

(25P Cable)Connect Monitor(Signal Cable)

MTI-2031DDC Manger

4-15

4. Troubleshooting

4-7-2. Service Function Specifications

Checking the Code Version 1. Check the MCU code version and checksum after entering SVC Mode.2. Entering 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. Safe 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

Micom versionMicom checksum

Select the Auto Auto optionSelect the PixelShift option.Country

Scaler Vender

The SVC Function OSD is made up of 103 (horizontal) x 82 (vertical) grids.The SVC Function OSD consists of panel information, software versions and MICOM checksum.

Service Mode (Moving around) 1. Press the key to move to the upper item and the key to adjust values of each item.

4-16

4. Troubleshooting

When replacing the panel After replacing the panel, select the Panel Ch. No. item and press the MENU key for five seconds. The Panel Ch. No. will then increment by one and the panels time information will be set to 0. At the same time, the panel cycle will be set to 0.

Service Mode features Auto Auto : On / Off -PixelShift : On / Off -Country : English / Korean / Chinese / Japanese -HotPlug Time : 5~50 (Default 9 : 0.9sec) -=> This feature lowers the level of voltage to that of Hotplug Time during communication for recognizing the

recognition pin inside the monitor for HDCP authentication between a player and the monitor.

4-17

4. Troubleshooting

Inputting the DDC Data

After exchange the Main Board, We use DDC manager and must complete downloading. - Connecting is refer to below picture. - MICOM can be updated with DDC manager. -

Connect to parallel port DDC MANAGER Connect to MAIN boardCN102

- Connect DDC Manager Jig to P2070H / P2270H with DVI-I to D-Sub cable and DVI cable.- Execute Winddc.exe Program on PC. - Click the Winddc icon.1. Click the Open [F5] icon2. Select Port # -> Open a DDC file. (Ex) SMP2270HA.ddc : Analog3. Select the other Port # SMP2270HD.ddc : Digital4. Click Next (OK) button

1

2

3

4

4-18

4. Troubleshooting

5. Enter the serial number and then press the Enter button.

If you using old version.-> When inputting digital data after inputting analog data, repeat steps 2 to 5.

5

4-19

4. Troubleshooting

Inputting the MCU Data 1) Check the following options. - Manufacture : MSTAR - Device Type :TSUMxx - Communication Por t: DSUB15(Analog) - External Memory : PMC25LV020

1

2) Click the LoadFile button, select an MCU code file, and then click the Open [O] button.

4-20

4. Troubleshooting

3) Click the Auto Program button. 4) When programming and verification are complete, hard power the monitor off and then on again.

3

4-21

4. Troubleshooting

Inputting the Code (HDCP)

1. Run the service.exe file.

2. Click the HDCP button.

4-22

4. Troubleshooting

3. Click the HDCP Write button and select MStar_HDCPKEY.

4. Inputting the HDCP key is completed.

6-1

6. Wiring Diagram

6. Wiring Diagram

6-1. Wiring Diagram - Main Board

6-2

6. Wiring Diagram

6-2. Wiring Diagram - IP Board

LVDS Connector(Connect to Panel)

EEPROM EEPROM

CN400LVDS

IC200Scaler

X201

Func

tion

LED

Driv

er /

Inve

rter

IC101 TMDS Switch

CN604CN703CN102CN700

Audio Out

HDMI Jack

DVI - I JackAdaptor

6-3

6. Wiring Diagram

6-3. Connector Functions

Connector Functions

CN102 DVI-I (Analog/ Digital) signal input terminal* Upon occurrence of a fault: No RGB Output error may occur.

CN200 Connected to the function board.* Upon occurrence of a fault: No LED screen and Function Failure error may occur.

CN400 Transfers LVDS signals from the main board to the panel.* Upon occurrence of a fault: Blank Screen and No Power errors may occur.

CN601 Sends PWM outputs from the power board to the inverter (LED driver for XL2370).* Upon occurrence of a fault: Blank Screen error may occur.

CN604 HDMI sound output terminal* Upon occurrence of a fault: An error may occur in I2S digital sound outputs inputted to the

HDMI.

CN703 HDMI signal input terminal* Upon occurrence of a fault: No Digital Output (No TMDS output) error may occur.

CN700 Supplies 14V (12V for P2070H) from the adapter to the main board.* Upon occurrence of a fault: No Power and Blank Screen errors may occur.

6-4. Cables

Use LVDS 30p FFC cable

Code BN96-08740S (P2070H) BN96-08740M (P2270H)

Photo

6-4

6. Wiring Diagram

Memo

Cover.pdf1. Precautions1-1. Safety Precautions1-2. Servicing Precautions1-3. Static Electricity Precautions1-4. Installation Precautions

2. Product specifications2-1. Feature & Specifications2-2. Spec Comparison to the Old Models2-3. Accessories2-4. Accessories (Sold separately)

3. Disassembly and Assembly3-1. Disassembly

4. Troubleshooting4-1. Troubleshooting4-2. When the power does Not Turn on4-3. When the screen is blank (Analog)4-4. When a blank screen is displayed (Digital)4-5. When a blank screen is displayed (HDMI)4-6. Error Examples and Actions4-7. Adjustment

5. Exploded View & Part List5-1. Exploded View (P2070H)5-2. Parts List (P2070H)5-3. Exploded View (P2270H)5-4. Parts List (P2270H)

6. Wiring Diagram6-1. Wiring Diagram - Main Board6-2. Wiring Diagram - IP Board6-3. Connector Functions6-4. Cables

Disassembly & Reassembly.pdf3. Disassembly and Assembly3-1. Disassembly

Exploded View & Part List.pdf5. Exploded View & Part List5-1. LS22EFVKU/XF - Exploded View5-2. LS22EFVKU/XF Parts List

Precaution.pdf1. Precautions1-1. Safety Precautions1-2. Servicing Precautions1-3. Static Electricity Precautions1-4. Installation Precautions

Product Specification.pdf2. Product specifications2-1. Feature & Specifications2-2. Spec Comparison to the Old Models2-3. Accessories2-4. Accessories (Sold separately)

Troubleshooting.pdf4. Troubleshooting4-1. Troubleshooting4-2. When the power does Not Turn on4-3. When the screen is blank (Analog)4-4. When a blank screen is displayed (Digital)4-5. When a blank screen is displayed (HDMI)4-6. Error Examples and Actions4-7. Adjustment

Wiring Diagram.pdf

Documents

Samsung Service Manual