Samsung Syncmaster 743b Service Manual

							
5-4 
5. Exploded View & Part List

......6PCBBN41-00947APCB SUB-FUNCITION;Mckinley function,FR-41S.N.A
0.1M0112BN91-01877AASSY SHIELD;MCKINLEY 19,LS19MYW1S.N.A
..2BN63-03965ASHIELD-LAMP;943BW/NW,SPTE,T0.3,(Wide)1S.N.A
0.1M0107BN91-02069AASSY LCD-CTZ;LS19MYN*1S.N.A
..2M0215BN07-00462ALCD-PANEL;M190A1-L071S.A
0.1M0017BN91-02070AASSY CHASSIS-CTZ;LS19MYNKB/XSF1S.N.A
..2M00816003-000115SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC2S.A
..2M00816003-000115SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC1S.A
..2M00816003-001439SCREW-TAPTITE;BH,+,-,S,M4,L8,ZPC(WHT),SW1S.N.A
..2M0174BN44-00121KIP BOARD;PWI1904SJ(J),MCKINLEY 943NW/BW,1S.A
..2T0514BN61-03557ABRACKET-SUPPORT;2043BW/NW[Mckinley],SPTE1S.N.A
..2M0014BN94-01702AASSY PCB MAIN-CTZ;LS19MYNKB/XSF1S.A
...3T02450202-001608SOLDER-WIRE FLUX;LFC7-107,D0.8,99.3Sn/0.0.003S.N.A
...3CN1013701-001219CONNECTOR-DSUB;15P,3R,FEMALE,ANGLE,AUF1S.A
...3CN6003711-004261HEADER-BOARD TO BOARD;BOX,12P,1R,2mm,ANG1S.A
...3T0174BN97-02079AASSY SMD;LS19MYNKB/XSF1S.N.A
....4SUB050202-001477SOLDER-CREAM;LST309-M,-,D20~45um,96.5Sn/0.457S.N.A
....4D1080401-001056DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO1S.A
....4D1090401-001056DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO1S.A
....4D1100401-001056DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO1S.A
....4D6000402-001614DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP1S.A
....4D6010402-001614DIODE-RECTIFIER;S1G,400V,1A,DO-214AC,TP1S.A
....4ZD1040403-001411DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T1S.A
....4ZD1050403-001411DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T1S.A
....4ZD2020403-001411DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T1S.A
....4ZD2030403-001411DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T1S.A
....4ZD2040403-001411DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T1S.A
....4ZD6010403-001411DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T1S.A
....4ZD2010406-001061DIODE-TVS;MMQA5V6T3,5.32/5.6/5.88V,24W,S1S.A
....4Q2030501-000445TR-SMALL SIGNAL;KTC3875S-Y,NPN,150mW,SOT1S.A
....4Q2040501-000445TR-SMALL SIGNAL;KTC3875S-Y,NPN,150mW,SOT1S.A
....4Q6010501-000445TR-SMALL SIGNAL;KTC3875S-Y,NPN,150mW,SOT1S.A
....4Q2020501-002080TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-591S.A
Downloaded from ManualMonitor.com ManualL 
						

							
5-5
5. Exploded View & Part List

....4Q2050501-002080TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-591S.A
....4Q2070501-002080TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-591S.A
....4Q4090505-001165FET-SILICON;SI3443BDV,P,-20V,+-4.4A,65mo1S.A
....4IC1121103-001410IC-EEPROM;S-24CS08AFJ-TB-1GE,8Kbit,1Kx8,1S.A
....4T00871203-003695IC-POSI.FIXED REG.;NCP1117ST33T3G,SOT-221S.A
....4T00871203-003696IC-POSI.FIXED REG.;NCP1117DT18T5G,DPAK,31S.A
....4IC1091205-003364IC-LCD CONTROLLER;SE717M-LF,PQFP,128P,201S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000074R-CHIP;100ohm,5%,1/10W,TP,16081S.A
....4R1102007-000080R-CHIP;2Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000080R-CHIP;2Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000082R-CHIP;3.3Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000082R-CHIP;3.3Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000083R-CHIP;3Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000083R-CHIP;3Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000084R-CHIP;4.7Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000084R-CHIP;4.7Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000088R-CHIP;7.5Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
Downloaded from ManualMonitor.com ManualL 
						

							
5-6 
5. Exploded View & Part List

....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000090R-CHIP;10Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000102R-CHIP;100Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000124R-CHIP;2.2Kohm,5%,1/10W,TP,16081S.A
....4R1102007-000309R-CHIP;10ohm,5%,1/10W,TP,16081S.A
....4R1102007-000309R-CHIP;10ohm,5%,1/10W,TP,16081S.A
....4R1102007-000821R-CHIP;390ohm,1%,1/10W,TP,16081S.A
....4R1102007-000821R-CHIP;390ohm,1%,1/10W,TP,16081S.A
....4R1102007-001044R-CHIP;56ohm,5%,1/10W,TP,16081S.A
....4R1102007-001044R-CHIP;56ohm,5%,1/10W,TP,16081S.A
....4R1102007-001164R-CHIP;75ohm,1%,1/10W,TP,16081S.A
....4R1102007-001164R-CHIP;75ohm,1%,1/10W,TP,16081S.A
....4R1102007-001164R-CHIP;75ohm,1%,1/10W,TP,16081S.A
....4C1202203-000236C-CER,CHIP;0.1nF,5%,50V,C0G,16081S.A
....4C1202203-000236C-CER,CHIP;0.1nF,5%,50V,C0G,16081S.A
....4C1202203-000236C-CER,CHIP;0.1nF,5%,50V,C0G,16081S.A
....4C1202203-000257C-CER,CHIP;10nF,10%,50V,X7R,TP,16081S.A
....4C1202203-000257C-CER,CHIP;10nF,10%,50V,X7R,TP,16081S.A
....4C1202203-000257C-CER,CHIP;10nF,10%,50V,X7R,TP,16081S.A
....4C1202203-000384C-CER,CHIP;0.015nF,5%,50V,C0G,16081S.A
....4C1202203-000626C-CER,CHIP;0.022nF,5%,50V,C0G,16081S.A
....4C1202203-000626C-CER,CHIP;0.022nF,5%,50V,C0G,16081S.A
....4C1202203-000626C-CER,CHIP;0.022nF,5%,50V,C0G,16081S.A
....4C1202203-000888C-CER,CHIP;4.7nF,10%,50V,X7R,16081S.A
....4C1202203-000888C-CER,CHIP;4.7nF,10%,50V,X7R,16081S.A
....4C1202203-000888C-CER,CHIP;4.7nF,10%,50V,X7R,16081S.A
....4C1202203-000888C-CER,CHIP;4.7nF,10%,50V,X7R,16081S.A
....4C1202203-000888C-CER,CHIP;4.7nF,10%,50V,X7R,16081S.A
....4C1202203-000888C-CER,CHIP;4.7nF,10%,50V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
Downloaded from ManualMonitor.com ManualL 
						

							
5-7
5. Exploded View & Part List

....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005005C-CER,CHIP;100nF,10%,16V,X7R,16081S.A
....4C1202203-005065C-CER,CHIP;1000nF,+80-20%,10V,Y5V,16081S.A
....4C1202203-005065C-CER,CHIP;1000nF,+80-20%,10V,Y5V,16081S.A
....4C1202203-005065C-CER,CHIP;1000nF,+80-20%,10V,Y5V,16081S.A
....4C1202203-005437C-CER,CHIP;10000nF,+80-20%,10V,Y5V,32161S.A
....4C2312402-001128C-AL,SMD;100μF,20%,16V,-,TP,6.3X5.7mm1S.A
....4C6292402-001128C-AL,SMD;100μF,20%,16V,-,TP,6.3X5.7mm1S.A
....4C6392402-001128C-AL,SMD;100μF,20%,16V,-,TP,6.3X5.7mm1S.A
....4X2022801-003667CRYSTAL-SMD;14.31818MHz,30ppm,28-AAN,16p1S.A
....4T05683301-001407BEAD-SMD;30ohm,1608,300mA,TP,,,0.4ohm1S.N.A
....4T05683301-001407BEAD-SMD;30ohm,1608,300mA,TP,,,0.4ohm1S.N.A
....4CN4003708-001150CONNECTOR-FPC/FFC/PIC;30P,1mm,SMD-A,SN,Y1S.A
....4T0077BN41-00877APCB MAIN;Mckinley,CEM-3 Silver,2,MP1.0,11S.N.A
....4M0018BN97-02035AASSY MICOM;Mckinley,LMY19NS,MX25L1005,201S.N.A
.....5IC1151107-001614IC-FLASH MEMORY;MX25L1005,1Mbit,1Mx1Bit,1S.N.A
..2M0251BN96-02854NASSY CABLE P;Fininfarina,FLAT CABLE,-,151S.A
..2M0006BN96-06381RASSY SHIELD P-COVER;943NW(CMO PANEL),SEC1S.N.A
...3T0073AA63-01141CGASKET-EMI;42D5,T1.5,10,40,Fabric4S.N.A
...3T0527AA65-00011CCLAMPER CORE-WIRE;ALL MODEL,NYLON 66,V2,1S.N.A
...3BN61-02429DSTUD-PEM;PNB,M2.8,D7,L20,ZPC(SIL),SUM24L1S.N.A
...3BN61-03573FBRACKET-SUPPORT STAND;LS19MYW,SECC,T1.6,1S.N.A
...3BN61-03594ASPRING ETC-STAND;Mckinley,SUS304,T0.3,SI1S.N.A
...3M0107BN63-03962DSHIELD-COVER;LS19MYW,SECC,T0.8,BOE Panel1S.N.A
0.1M0113BN92-02621ZASSY P/MATERIAL;LS19MYWKBA/XSF*1S.N.A
..2T03766902-000061BAG AIR;LDPE,T0.2,L1000,W500,TRP,,,0.005S.N.A
..2T05246902-000241BAG PE;NITRON/HDPE,T0.5/T0.012,W600,L6001S.N.A
Downloaded from ManualMonitor.com ManualL 
						

							
5-8 
5. Exploded View & Part List
..2T03766902-000379BAG AIR;LDPE,T0.2,W1000,L1800,TRP,-,--0.001S.N.A
..2T00036902-000604BAG WRAPPING;LDPE,T0.02,W500,L10000,TRP,0.79S.N.A
..2M00816902-000609BAG ROLL;LDPE,T0.05,W2400,L1000,TRP,-,-0.017S.N.A
0.1M0019BN92-03163NASSY LABEL;LS17MYAKB/XAZ1S.N.A
0.1M0003BN92-03351EASSY BOX;LS19MYNKFZ/XBM1S.N.A
..2BN69-02296ABOX-02,MONITOR;943NWX-Simple,CB,SY-01,A11.02S.N.A
0.1M0045BN92-03437BASSY ACCESSORY;LS19MYNKFZ/XBM1S.N.A
..2M0003BN96-06388AASSY STAND P;-,943BW,-,SECC T2.0,-,-1S.A
...3BN63-03985ACOVER-STAND FRONT;LS19MYW,HIPS HB,BK26,S1S.N.A
...3BN63-03992ACOVER-STAND REAR;LS19MYW,HIPS HB,BK26,Si1S.N.A
...3T0022BN96-06383AASSY HINGE P-SIMPLE;943BW,SPCC, HGI,T2.01S.N.A
...3T05246902-000675BAG PE;LDPE,T0.05,W200,L250,PINK,28,-,31S.N.A
...3M00816003-000282SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SW4S.A
..2M0027BN96-06672AASSY STAND P-BASE;LS17MY,ABS HB,BK26,H/G1S.A
...3T05246902-000110BAG PE;LDPE,T0.05,W250,L400,TRP,28,21S.N.A
...3CIS4BN61-01717AHOLDER-STAND;BIZET,NI PLT,CH,+,M4,L11(5)1S.N.A
...3CCM1BN63-02183KCOVER-SHEET;Rhcm,PE Vinyl,T 0.05,250MM,20.25S.N.A
...3T0004BN63-04210ACOVER-STAND BASE;943BW,743B,743BM,ABS,HB1S.N.A
...3BN96-06529AASSY HOLDER P-WIRE;MCKINLEY,ABS HB,BK261S.N.A
....46902-000336BAG ZIPPER;LDPE,T0.05,W70,L80,TRP,-,--1S.N.A
....4M0114BN61-03555AHOLDER-WIRE;MCKINLEY,ABS HB,BK261S.N.A
...3T0132BN73-00077ARUBBER FOOT;MATISSE,BUMPON,Ф13.5,T2.0,64S.N.A
..2BN96-07639BASSY ACCESSORY-CABLE&MANUAL;LS19MYNKFZ/X1S.A
...3T02683903-000085CBF-POWER CORD;DT,US,BP3/YES,I(IEC C13/C1S.A
...3T05246902-000110BAG PE;LDPE,T0.05,W250,L400,TRP,28,21S.N.A
...3T0175AA68-03727AMANUAL FLYER-01,WARRANTY CARD;All,SAMSUN1S.N.A
...3BN63-02368ACLOTH;LS07BTT,SUEDE,0.6,160,1201S.N.A
...3M0215BN96-06906AASSY MANUAL P-IB+QSG;943NW,943NWX,MOJO 81S.N.A
....4CCM1BN59-00666AS/W DRIVER-02,IB;943NW,943NWs,W/W,SyncMa1S.N.A
....4QSGBN68-01377AMANUAL FLYER-QSG;2043BW,SyncMaster,W/W,M1S.N.A
..2M0114BN39-00244GCBF SIGNAL;D-sub cable,15P/15P,20276N,151S.A
Downloaded from ManualMonitor.com ManualL 
						

							
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.
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 o\
r that hardware is not lodged between the 
chassis and other metal parts in the monitor.
Inspect all protective devices such as nonmetallic control knobs, insula\
ting materials, cabinet backs, adjustment and 
compartment covers or shields, isolation resistorcapacitor networks, mec\
hanical 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 
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, screwhead\
s 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 characte\
ristics which are often not evident from visual 
inspection. The protection they give may not be obtained by replacing them with comp\
onents 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 re\
commended replacement part might create 
shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever 
appropriate.
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DEVICEUNDERTEST
(READING SHOULD) NOT BE ABOVE 0.5mA
LEAKAGECURRENTTESTER
TEST ALLEXPOSED METALSURFACES
2-WIRE CORD
*ALSO TEST WITHPLUG REVERSED(USING AC ADAPTERPLUG AS REQUIRED)EARTHGROUNDFigure 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 t\
he Safety Precautions section of 
this manual.
Note: 
If unforeseen circumstances create conflict between the following servicing precautions and any of the 
safety precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
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 thermal\
ly hot components. Reinstall all such 
elements to their original position.
After servicing, always check that the screws, components and wiring hav\
e 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 pos\
itive lead; 
always remove the instrument’s ground lead last.
1-3. Static Electricity Precautions
Some semiconductor (solid state) devices can be easily damaged by stat\
ic electricity. Such components are commonly 
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-ef fect 
transistors. The following techniques will reduce the incidence of component damage c\
aused 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 sufficient 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 classified as “anti-static” can generate 
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 
are packaged with leads that are electrically shorted together by conduc\
tive 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 b\
e installed. 
Caution: Be sure no power is applied to the chassis or circuit and observe all o\
ther safety precautions.
Minimize body motions when handling unpackaged replacement ESDs. Motions\
 such as brushing clothes together,  
or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD.
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1-3
1. Precautions

1-4. Installation Precautions
For safety reasons, more than two people are required for carrying the p\
roduct.
Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock.
Do not place the product in areas with poor ventilation such as a booksh\
elf or closet. The increased internal 
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 
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 
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 
antenna falling over may cause fire or electric shock.
When installing the product, leave enough space (10cm) between the pro\
duct and the wall for ventilation purposes.  
A rise in temperature within the product may cause fire.
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1-4 
1. Precautions
Memo
 
						

							
2-1
2. Product specifications
2. Product specifications
2-1. Feature & Specifications
Model943NW / 943NWX  
Feature
Panel Specifications: 300 cd/m2, 5 ms, CR 1000:1, 170/160 (CR>10) 
DPMS :