Samsung Syncmaster 943nwx User manual

LCD-Monitor

Chassis : LS19MYN

Model :

943NW / 943NWX

SERVICEManual

TFT-LCD Monitor Contens

943NW / 943NWX

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

7. Schematic Diagram

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) ........................................................................................ 2-3

3. Disassembly and Assembly ................................................................................... 3-1

3-1. SIMPLE STAND Disassembly ........................................................................................ 3-1

3-2. HAS STAND Disassembly.............................................................................................. 3-4

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. Error Examples and Actions ........................................................................................... 4-7

4-5. Adjustment...................................................................................................................... 4-8

5. Exploded View & Part List ...................................................................................... 5-1

5-1. SIMPLE STAND Exploded View..................................................................................... 5-1

5-2. SIMPLE STAND Parts List.............................................................................................. 5-3

5-3.

HAS STAND Exploded View ................................................................................................. 5-9

5-4.

HAS STAND

Parts List .................................................................................................. 5-11

6. Wiring Diagram........................................................................................................ 6-1

6-1. Wiring Diagram - Main Board ......................................................................................... 6-1

6-2. Wiring Diagram - IP Board.............................................................................................. 6-2

6-3. Connector Functions ...................................................................................................... 6-3

6-4. Cables ............................................................................................................................ 6-3

7. Schematic Diagram ................................................................................................. 7-1

7-1. Circuit Descriptions......................................................................................................... 7-1

7-2. Schematic Diagrams (Scaler Part) ................................................................................. 7-2

7-3. Schematic Diagrams (Power Flowchart) ........................................................................ 7-2

7-4. Schematic Diagrams (IP Board) ..................................................................................... 7-3

7-5. Schematic Diagrams (Main PBA) .................................................................................. 7-3

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.

Printed in Korea

P/N: BN82-00288A-00

3-1

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. SIMPLE STAND Disassembly

Caution: 1. Turn the monitor off before beginning the disassembly process.

2. Disassemble the monitor carefully as directed in the following procedures.

3. When disassembling the monitor, do not use any metal tools except for the provided jig.

Description Photo Screws

1. Place a soft cloth on the table and place

the monitor onto it with the front part facing

downwards. Hold the monitor set with one hand

and hold and pull the stand body backwards with

the other hand to remove the stand body from the

monitor set.

Caution : : If you do not tilt the stand and use too

much force to remove it, the connection

pin may break.

2. ① Turn the monitor over and insert your hands

into the top of the monitor at the center and

separate the front cover in the direction of the

arrow as shown in the gure.

②Separate the sides of the front cover up to the

directed line as shown in the gure.

3. Turn the monitor over again to remove the back

cover.

①

②

3-2

3. Disassembly and Assembly

Description Photo Screws

4.

Remove the SHIELD-LAMP using the provided JIG.

Caution: The SHIELD-LAMP is sharp.

5. Remove the LVDS, LAMP wire, FUNCTION

cable, and SPEAKER cable, and then remove

the SHIELD-COVER.

LAMP

WIRE

LVDS

FUNCTION

6.

Remove the LCD panel..

7.

Remove the four (4) screws shown in the gure.

8. Remove the four (4) screws shown in the gure

and remove the Bracket support.

3-3

3. Disassembly and Assembly

Description Photo Screws

9.

Remove the main PCB and IP boards from the

SHIELD-cover.

The assembly is in the reverse order of disassembly.※

3-4

3. Disassembly and Assembly

3-2. HAS STAND Disassembly

Description Photo Screws

1. If the Stopper PIN at the back of the stand is

not removed, place a soft cloth on the table and

place the monitor on it, and then hold the monitor

set and remove the Stopper PIN at the back of

the stand.

2.

Turn the monitor over. Remove the two (2) screws

that hold the stand in place and then remove the

stand.

Caution: When removing the screws, hold

the stand body with one hand

so that the stand does not fall.

3. The following steps are the same as steps 2 to 9 for disassembling the SIMPLE stand.

The assembly is in the reverse order of disassembly.※

5-1

5. Exploded View & Part List

5-1. Exploded View

T0003

M0215

M0174

M0081

T0514

M0006 M0013

M0003

M0027

BN63-03965A

5-2

5. Exploded View & Part List

5-1-1. LS19MYNKB/XSF Parts List

Location No. Code No. Description & Specication Q’ty SA/SNA Remark

T0003 BN96-06382B ASSY COVER P-FRONT;LS19MYN_943NW,,,ABS H 1 S.A

M0215 BN07-00493A LCD-PANEL;LTM190M2-L31-2,Mckinley,6bit H 1 S.A

M0174 BN44-00124L IP BOARD;IP-35155A(MW),MCKINLEY 943NW/BW 1 S.A

M0081 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC 2 S.A

M0081 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC 1 S.A

M0081 6003-001439 SCREW-TAPTITE;BH,+,-,S,M4,L8,ZPC(WHT),SW 1 S.N.A

T0514 BN61-03557A BRACKET-SUPPORT;2043BW/NW[Mckinley],SPTE 1 S.N.A

M0006 BN96-06433R ASSY SHIELD P-COVER;943NW(AMLCD),SECC,T0 1 S.N.A

BN63-03965A SHIELD-LAMP;943BW/NW,SPTE,T0.3,(Wide) 1 S.N.A

M0013 BN96-06380R ASSY COVER P-REAR;LS19MY(943NW),HIPS,HB, 1 S.A

M0003 BN96-06388A ASSY STAND P;-,943BW,-,SECC T2.0,-,- 1 S.A

M0027 BN96-06384A ASSY STAND P-BASE;-,943BW,-,HIPS HB,BK28 1 S.A

5-3

5. Exploded View & Part List

5-2. LS19MYNKB/XSF

Parts List

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

Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark

LS19MYNKB/XSF 943NW,SAL1/S19B8-LMY,19,LCD-MO,CHINA

0.1 M0001 BN90-01417B ASSY COVER FRONT;MCKINLEY 19,LS19MYN_

943 1 S.N.A

..2 T0003 BN96-06382B ASSY COVER P-FRONT;LS19MYN_

943NW,,,ABS H 1 S.A

...3 M0112 BN63-03984B COVER-FRONT;LS19MYN_943NW,ABS

HB,BK26,AN 1 S.N.A

...3 M0130 BN67-00209A LENS LED;Mckinley,PC CLEAR,TP15(TP-1020) 1 S.N.A

...3 M0175 BN96-06485B ASSY BOARD P-TOUCH

FUNCTION;Mckinley,CT5 1 S.A

0.1 M0002 BN90-01418T ASSY COVER REAR;LS19MY,AMLCD,ANALOG

,SIMP 1 S.N.A

..2 M0013 BN96-06380R ASSY COVER P-REAR;LS19MY(943NW),HIPS,

HB, 1 S.A

...3 M0113 BN61-01581A BRACKET-VESA;BI17/19BS,SECC,T1.0 2 S.N.A

...3 M0006 BN63-03940A COVER-REAR SUB;2043BW/NW,HIPS HB,BK26 1 S.A

...3 M0006 BN63-03982G COVER-REAR;943BW/NW,HIPS

HB,BK26,CMO,SIM 1 S.N.A

...3 M0126 BN73-00162A RUBBER-PANEL;943BW/

NW,RUBBER,BLACK,(Wide 2 S.N.A

...3 M0126 BN73-00170C RUBBER-FOOT;943BW,2043BW,RUBBER,8*8

,3.0, 3 S.N.A

0.1 M0106 BN91-01803S ASSY LCD-STZ;LS19AQW* 1 S.N.A

..2 M0215 BN07-00493A LCD-PANEL;LTM190M2-L31-2,Mckinley,6bit H 1 S.A

0.1 M0112 BN91-01877A ASSY SHIELD;MCKINLEY 19,LS19MYW 1 S.N.A

..2 BN63-03965A SHIELD-LAMP;943BW/NW,SPTE,T0.3,(Wide) 1 S.N.A

0.1 M0017 BN91-02122A ASSY CHASSIS-STZ;LS19MYNKB/XSF 1 S.A

..2 M0081 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SW

RC 2 S.A

..2 M0081 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SW

RC 1 S.A

..2 M0081 6003-001439 SCREW-TAPTITE;BH,+,-

,S,M4,L8,ZPC(WHT),SW 1 S.N.A

..2 M0174 BN44-00124L IP BOARD;IP-35155A(MW),MCKINLEY 943NW/

BW 1 S.A

..2 T0514 BN61-03557A BRACKET-SUPPORT;2043BW/

NW[Mckinley],SPTE 1 S.N.A

..2 M0014 BN94-01721A ASSY PCB MAIN-STZ;LS19MYNKB/XSF 1 S.N.A

...3 T0245 0202-001608 SOLDER-WIRE FLUX;LFC7-107,D0.8,99.3Sn/0. 0.003 S.N.A

...3 CN101 3701-001219 CONNECTOR-DSUB;15P,3R,FEMALE,ANGLE,

AUF 1 S.A

...3 CN600 3711-004261 HEADER-BOARD TO

BOARD;BOX,12P,1R,2mm,ANG 1 S.A

...3 T0174 BN97-02109A ASSY SMD;LS19MYNKB/XSF 1 S.N.A

....4 SUB05 0202-001477 SOLDER-CREAM;LST309-M,-

,D20~45##,96.5Sn/ 0.457 S.N.A

5-4

5. Exploded View & Part List

....4 D108 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200m

A,SO 1 S.A

....4 D109 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200m

A,SO 1 S.A

....4 D110 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200m

A,SO 1 S.A

....4 D600 0402-001614 DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP 1 S.A

....4 D601 0402-001614 DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP 1 S.A

....4 ZD104 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-

323,T 1 S.A

....4 ZD105 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-

323,T 1 S.A

....4 ZD202 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-

323,T 1 S.A

....4 ZD203 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-

323,T 1 S.A

....4 ZD204 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-

323,T 1 S.A

....4 ZD601 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-

323,T 1 S.A

....4 ZD201 0406-001061 DIODE-TVS;MMQA5V6T3,5.32/5.6/5.88V,24W,S 1 S.A

....4 Q203 0501-000445 TR-SMALL SIGNAL;KTC3875S-

Y,NPN,150mW,SOT 1 S.A

....4 Q204 0501-000445 TR-SMALL SIGNAL;KTC3875S-

Y,NPN,150mW,SOT 1 S.A

....4 Q601 0501-000445 TR-SMALL SIGNAL;KTC3875S-

Y,NPN,150mW,SOT 1 S.A

....4 Q202 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S

C-59 1 S.A

....4 Q205 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S

C-59 1 S.A

....4 Q207 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S

C-59 1 S.A

....4 Q409 0505-001165 FET-SILICON;SI3443BDV,P,-20V,+-4.4A,65mo 1 S.A

....4 IC112 1103-001410 IC-EEPROM;S-24CS08AFJ-TB-

1GE,8Kbit,1Kx8, 1 S.A

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

22 1 S.A

....4 T0087 1203-003696 IC-POSI.FIXED REG.;NCP1117DT18T5G,DPA

K,3 1 S.A

....4 IC109 1205-003364 IC-LCD CONTROLLER;SE717M-

LF,PQFP,128P,20 1 S.A

....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A

5-5

5. Exploded View & Part List

....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000082 R-CHIP;3.3Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000083 R-CHIP;3Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000088 R-CHIP;7.5Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-000821 R-CHIP;390ohm,1%,1/10W,TP,1608 1 S.A

....4 R110 2007-001044 R-CHIP;56ohm,5%,1/10W,TP,1608 1 S.A

....4 R110 2007-001164 R-CHIP;75ohm,1%,1/10W,TP,1608 1 S.A

....4 C120 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 1 S.A

....4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 1 S.A

....4 C120 2203-000384 C-CER,CHIP;0.015nF,5%,50V,C0G,1608 1 S.A

....4 C120 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 1 S.A

....4 C120 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,1608 1 S.A

5-6

5. Exploded View & Part List

....4 C120 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,1608 1 S.A

....4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 1 S.A

....4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 1 S.A

....4 C120 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 1 S.A

....4 C231 2402-001128 C-AL,SMD;100##F,20%,16V,-,TP,6.3X5.7mm 1 S.A

....4 C629 2402-001128 C-AL,SMD;100##F,20%,16V,-,TP,6.3X5.7mm 1 S.A

5-7

5. Exploded View & Part List

....4 C639 2402-001128 C-AL,SMD;100##F,20%,16V,-,TP,6.3X5.7mm 1 S.A

....4 X202 2801-003667 CRYSTAL-SMD;14.31818MHz,30ppm,28-

AAN,16p 1 S.A

....4 T0568 3301-001407 BEAD-SMD;30ohm,1608,300mA,TP,,,0.4ohm 1 S.N.A

....4 CN400 3708-001150 CONNECTOR-FPC/FFC/PIC;30P,1mm,SMD-

A,SN,Y 1 S.A

....4 T0077 BN41-00877A PCB MAIN;Mckinley,CEM-3 Silver,2,MP1.0,1 1 S.N.A

....4 M0018 BN97-02035B ASSY MICOM;McKinley,LMY19NS,MX25L1005

,20 1 S.N.A

.....5 IC115 1107-001614 IC-FLASH MEMORY;MX25L1005,1Mbit,1Mx1Bit, 1 S.N.A

..2 M0251 BN96-02854N ASSY CABLE P;Fininfarina,FLAT CABLE,-,15 1 S.A

..2 M0006 BN96-06433R ASSY SHIELD P-COVER;943NW(AMLCD),SEC

C,T0 1 S.N.A

...3 T0527 AA65-00011C CLAMPER CORE-WIRE;ALL MODEL,NYLON

66,V2, 1 S.N.A

...3 BN61-01256A STAND-COVER BODY F;RAFFAELLO 17,ABS

HB,I 4 S.N.A

...3 BN61-02429D STUD-PEM;PNB,M2.8,D7,L20,ZPC(SIL),SUM2

4L 1 S.N.A

...3 BN61-03573D BRACKET-SUPPORT

STAND;LS19MYW,SECC,T1.6, 1 S.N.A

...3 BN61-03594A SPRING ETC-STAND;Mckinley,SUS304,T0.3,SI 1 S.N.A

...3 M0107 BN63-03997F SHIELD-COVER;943NW(AMLCD),SECC,T0.8,(

AML 1 S.N.A

0.1 M0113 BN92-02621Z ASSY P/MATERIAL;LS19MYWKBA/XSF* 1 S.N.A

..2 T0376 6902-000061 BAG AIR;LDPE,T0.2,L1000,W500,TRP,,, 0.005 S.N.A

..2 T0524 6902-000241 BAG PE;NITRON/HDPE,T0.5/T0.012,W600,L600 1 S.N.A

..2 T0376 6902-000379 BAG AIR;LDPE,T0.2,W1000,L1800,TRP,-,-- 0.001 S.N.A

..2 T0003 6902-000604 BAG WRAPPING;LDPE,T0.02,W500,L10000,T

RP, 0.79 S.N.A

..2 M0081 6902-000609 BAG ROLL;LDPE,T0.05,W2400,L1000,TRP,-,- 0.017 S.N.A

0.1 M0003 BN92-03122E ASSY BOX;LS19MYNKB/XSF 1 S.N.A

..2 M0014 BN69-02230B BOX-01,MONITOR;943NW-Simple,CB,SY-

01,A1, 1.01 S.N.A

0.1 M0019 BN92-03163W ASSY LABEL;LS17MYAKB/XSF,XSH,CHINA/

HONGK 1 S.N.A

..2 BN68-00761F MANUAL-02,QSG;Protection Sheet,SyncMaste 1 S.N.A

0.1 M0045 BN92-03247P ASSY ACCESSORY;LS19MYNKB/XSF 1 S.N.A

..2 M0114 BN39-00244G CBF SIGNAL;D-sub cable,15P/15P,20276N,15 1 S.A

..2 M0027 BN96-06384A ASSY STAND P-BASE;-,943BW,-,HIPS

HB,BK28 1 S.A

...3 T0524 6902-000110 BAG PE;LDPE,T0.05,W250,L400,TRP,28,2 1 S.N.A

...3 CIS4 BN61-01717A HOLDER-STAND;BIZET,NI PLT,CH,+,M4,L11(5) 1 S.A

...3 T0004 BN63-03998A COVER-STAND BASE;LS19MYK,HIPS

HB,BK26,SM 1 S.N.A

...3 BN96-06529A ASSY HOLDER P-WIRE;MCKINLEY,ABS

HB,BK26 1 S.N.A

....4 6902-000336 BAG ZIPPER;LDPE,T0.05,W70,L80,TRP,-,-- 1 S.N.A

....4 M0114 BN61-03555A HOLDER-WIRE;MCKINLEY,ABS HB,BK26 1 S.N.A

...3 T0132 BN73-00077A RUBBER FOOT;MATISSE,BUMPON,##13.5,T2

.0,6 4 S.N.A

..2 M0003 BN96-06388A ASSY STAND P;-,943BW,-,SECC T2.0,-,- 1 S.A

5-8

5. Exploded View & Part List

...3 BN63-03985A COVER-STAND FRONT;LS19MYW,HIPS

HB,BK26,S 1 S.N.A

...3 BN63-03992A COVER-STAND REAR;LS19MYW,HIPS

HB,BK26,Si 1 S.N.A

...3 T0022 BN96-06383A ASSY HINGE P-SIMPLE;943BW,SPCC,

HGI,T2.0 1 S.N.A

...3 T0524 6902-000675 BAG PE;LDPE,T0.05,W200,L250,PINK,28,-,3 1 S.N.A

...3 M0081 6003-000282 SCREW-TAPTITE;BH,+,-

,B,M3,L8,ZPC(BLK),SW 4 S.A

..2 M0045 BN96-07010M ASSY ACCESSORY;LS19MYNKB/XSF 1 S.A

...3 T0268 3903-000082 CBF-POWER CORD;DT,CN,IP3/YES(A),I(IEC

C1 1 S.A

...3 T0524 6902-000110 BAG PE;LDPE,T0.05,W250,L400,TRP,28,2 1 S.N.A

...3 M0113 BH68-70455A CARD-TESTED GOODS;ALL

(CHINA),SAMAUNG,CH 1 S.N.A

...3

ACCESSORY

BH75-00146B UNIT-11,WARRANTY;CHINA,-,ASS’Y-W/

CARD,BH 1 S.N.A

....4

CIS

BH68-00297E MANUAL FLYER-11,WARRANTY

CARD;SAMSUNG BA 1 S.N.A

....4

CIS

BH68-00297F MANUAL FLYER-10,WARRANTY

CARD;ENVELOPE,S 1 S.N.A

...3

ACCESSORY

BN68-01118A MANUAL-02,TCO99 CARD;COMM,W/W,Mojo

100g, 1 S.N.A

...3 M0215 BN96-06906A ASSY MANUAL P-

IB+QSG;943NW,943NWX,MOJO 8 1 S.N.A

....4 CCM1 BN59-00666A S/W DRIVER-02,IB;943NW,943NWs,W/

W,SyncMa 1 S.N.A

....4 QSG BN68-01377A MANUAL FLYER-QSG;2043BW,SyncMaster,W/

W,M 1 S.N.A

1-1

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.

Disconnect the AC power and DC power jack before servicing.

1-1-2. Servicing the LCD Monitor

When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet.

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:

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.

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.

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).

With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch

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.

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DEVICE

UNDER

TEST

(READING SHOULD)

NOT BE ABOVE 0.5mA

LEAKAGE

CURRENT

TESTER

TEST ALL

EXPOSED METAL

SURFACES

2-WIRE CORD

*ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED) EARTH

GROUND Figure 1-1. Leakage Current Test Circuit

1-2

1. Precautions

1-2. Servicing Precautions

WARNING: An electrolytic capacitor installed with the wrong polarity might explode.

Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of

this manual.

Note: If unforeseen circumstances create conict between the following servicing precautions and any of the

safety precautions, always follow the safety precautions.

1-2-1 General Servicing Precautions

Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack 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.

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.

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.

Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels,

input terminals and earphone jacks).

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.

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 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 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.

After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent

accumulation of an electrostatic charge.

Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.

Use only a grounded-tip soldering iron to solder or desolder ESDs.

Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate

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 ESDs

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

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,

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.

Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.

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

temperature may cause re.

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 re or electric shock.

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 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

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.

A rise in temperature within the product may cause re.

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1-4

1. Precautions

Memo

2-1

2. Product specications

2-1. Feature & Specications

Model 943NW / 943NWX

Feature

Panel Specications: 300 cd/m2, 5 ms, CR 1000:1, 170/160 (CR>10)

DPMS : <1W

TCO’03

Off-Timer function for reducing standby power usages

Windows Vista authentication

Picture;a screen size desire

Supported Color Effect: Black and white/Sepia/Aqua/Green

�

Specications

Item Description

LCD Panel TFT-LCD panel, RGB vertical stripe, normally white transmissive,

19” wide Viewable 0.258(H) mm x 0.258(V) mm pixel pitch

Scanning Frequency Horizontal : 30 kHz ~ 81 kHz (Automatic)

Vertical: 56 Hz ~ 75 Hz(WSXGA+ : 60Hz)

Display Colors 16.7 Million colors

Maximum resolution Horizontal: 1440 Pixels

Vertical: 900 Pixels

Input Signal Analog

Input Sync Signal Seperate H/V sync, Composite H/V, Sync-on-Green

Level: TTL level

Maximum Pixel Clock rate 137 Mhz

Active Display

(Horizontal/Vertical) 408.24(H) x 255.15(V)

AC power voltage & Frequency AC 110V~130V, 60Hz & AC, 200V~240V 50Hz

Power Consumption 38 W (Max)

Dimensions Set

(W x D x H) SIMPLE STAND 439 x 68.4 x 290 mm [Without Stand]

439 x 185 x 368 mm [With Stand]

HAS STAND 439 x 65.5 x 290 mm [Without Stand]

439 x 190 x 357.3mm [With Stand]

Weight

(Set/Package)

SIMPLE STAND Set : 3.5 kg [Without Stand], 3.8 kg [With Stand]

Package : 5.1 Kg

HAS STAND Set : 3.5 kg [Without Stand], 5.0 kg [With Stand]

Package : 6.55 Kg

Environmental Considerations Operating Temperature: 10˚C ~ 50˚C(50˚F ~ 122˚F)

Operating Humidity : 10% ~ 90%

Operating Temperature: -20˚C ~ 45˚C(-4˚F ~ 113˚F)

Operating Humidity: 5% ~ 90%

Note: Designs and specications are subject to change without prior notice.

Samsung SyncMaster 943NWX User manual

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