Samsung 943NWX manual

L CD-Monitor Chassis : L S 1 9 M Y N Model : 943NW / 943NWX SERVICE Manual TFT -L CD 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cation s 3. Disassembly and Reassembl e 4. T roubleshootin g 5. Exploded View & Part Lis t 6. Wiring Diagra m[...]

Contents 1. Precautions .............................................................................................................. 1-1 1-1. Safety Precautions ................................................................................... ...................... 1-1 1-2. Servicing Precautions .................................................[...]

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[...]

3-1 3. Dis ass emb ly and Asse mbl y 3. Disassembly and Assembly Thi s s ect ion de scr ibe s t he dis ass emb ly and re ass emb ly seq uen ces fo r t his mo nit or . W arni ng: As t his mo nit or has pa rts th at are se nsi tiv e t o s tat ic ele ctr ici ty , be ca ref ul whe n h and lin g t hem . 3- 1. S IM PL E ST AN D Di sa ss em bly Caution: 1[...]

3-2 3. Dis ass emb ly and Asse mbl y Des cr ipt io n Pho to Scr ew s 4. Rem ove th e S HIE LD- LAM P us ing th e p rov ide d J IG. Ca uti on: The SH IEL D-L AMP is s har p. 5. Rem ove th e L VDS , L AMP wire , F UNC TIO N cab le, an d S PEA KER ca ble , a nd the n r emo ve the SH IEL D-C OVE R. LAMP WIRE L VDS FUNCTION 6. Rem ove th e L CD pan el. [...]

3-3 3. Dis ass emb ly and Asse mbl y Des cr ipt io n Pho to Scr ew s 9. Rem ove th e m ain PC B a nd IP b oar ds fro m t he SHI ELD -co ver . The assembly is in the reverse order of disassembly . ※[...]

3-4 3. Dis ass emb ly and Asse mbl y 3- 2. H AS S T AND D is as se mb ly Des cr ipt io n Pho to Scr ew s 1. If the St opp er PIN at th e b ack of th e s tan d i s not re mov ed, pl ace a sof t c lot h o n t he tab le and pla ce the mo nit or on it, an d t hen ho ld the mo nit or set an d r emo ve the St opp er PIN at th e b ack of the st and . 2. T[...]

5-1 5. Exp lod ed V iew & Par t L ist 5. Exploded V iew & Part List 5- 1. S IM PL E ST AN D Ex pl od ed V ie w (L S1 9M YN KF Z/ XBM) T0003 M0215 M0174 M0081 M0081 T0514 M0006 M0013 M0003 M0027 BN63-03965A[...]

5-2 5. Exp lod ed V iew & Par t L ist 5-1-1. LS19MYNKFZ/XBM Parts List (943NWX) Location No. Code No. Description & Specication Q’ty SA/SNA Remark T0003 BN96-07592B ASSY COVER P-FRONT;[Mckinley]LS19MYW,ABS 1 S.A M0215 BN07-00462A LCD-PANEL;M190A1-L07 1 S.A M0174 BN44-00121K IP BOARD;PWI1904SJ(J),MCKINLEY 943NW/BW, 1 S.A M0081 6003-0001[...]

5-3 5. Exp lod ed V iew & Par t L ist 5-2. LS19MYNKFZ/XBM Parts List Ser vic e B om ( SA : S ER VIC E A V AILABL E, SNA : S ER VICE N OT A V AIL ABL E) Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark LS19MYNKFZ/XBM 943NWX,SAL1/S19B8-LMY,19,LCD- MO,ECUADOR 0.1 M0002 BN90-01584A ASSY COVER REAR;LS19MYNKBZ/XSF,CMO[...]

5-4 5. Exp lod ed V iew & Par t L ist ......6 PCB BN41-00947A PCB SUB-FUNCITION;Mckinley function,FR-4 1 S.N.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 M0107 BN91-02069A ASSY LCD-CTZ;LS19MYN* 1 S.N.A ..2 M0215 BN07-00462A LCD-PANEL;M190A1-L07 1 S.A 0.1 M0017 [...]

5-5 5. Exp lod ed V iew & Par t L ist ....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 [...]

5-6 5. Exp lod ed V iew & Par t L ist ....4 R110 2007-000090 R-CHIP;10Kohm,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 2007-000090 R-CHIP;10Kohm,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 R[...]

5-7 5. Exp lod ed V iew & Par t L ist ....4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 1 S.A ....4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 1 S.A ....4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 1 S.A ....4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 1 S.A ....4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608[...]

5-8 5. Exp lod ed V iew & Par t L ist ..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 M0019 BN92-03163N ASSY LABEL;LS17MYAKB/XAZ 1 S.N.A 0.1 M0003 BN92-03351E ASSY BOX;[...]

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. W arnings For continued safety , do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing. 1-1-2. Serv[...]

1-2 1. Precautions 1-2. Servicing Precautions W ARNING: 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 precautio[...]

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 interna[...]

1-4 1. Precautions Memo[...]

2-1 2. Product specications 2. Product specications 2-1. Feature & Specications Model 943NW / 943NWX Feature Pan el Spe ci cat ion s: 300 cd /m2 , 5 ms , C R 1 000 :1, 17 0/1 60 (CR >10 ) DPM S : <1 W TCO ’03 Of f- T imer f unc tio n f or red uci ng sta ndb y p owe r u sag es Win dow s V ista aut hen tic ati on Pic tur e;a s[...]

2-2 2. Product specications 2-2. Spec Comparison to the Old Models Model Mckinley(943NW / 943NWX) Mendel(931BW) Design Size 19” 19” Resolution 1440 x 900 1440 x 900 Input Analog / DVI Digital with HDCP Analog / Digital with HDCP Response Time 5ms(W to B) 4ms(G to G) Viewing Angle 170/160(CR>10) 160/160(CR>10) Brightness 300cd/m² 300cd[...]

2-3 2. Product specications 2-3. Accessories Product Description Ccde. No Remark Quick Setup Guide BH68-00376L Samsung Electronics Service center W arranty Card (Not available in all locations) BH68-00633B User ’s Guide, Monitor Driver , Natural Color Pro Software BN59-00585A D-Sub(15 Pin) Cable BN39-00244G Power Cord 3903-000082 2-4. Accessor[...]

2-4 2. Product specications Memo[...]

7-1 7. Schematic Diagram 7. Schematic Diagram 7-1. Circuit Descriptions Location Function Remark Scaler IC200 Besides the ADC, L VDS, and scaling part, an MCU is embedded as well. All of them are integrated into one chip. SE556M-LF Flash Memory IC201 Stores the MCU program embedded in the scaler . It is of a ash type and rewritable. MX25L V512 I[...]

7-2 7. Schematic Diagram 7-2. Schematic Diagrams (Scaler Part) P A N E L 24C08 EEPROM 1MB Flash Interface Engine Inverter 3.3V Regulator 1.8V Regulator 14.318MHz XTAL (PC)ANALOG R G B HSYNC VSYNC Function Key Display Processing Engine LVDS Panel Interface OSD Clock Generator MCU SE717M-LF +5 +5 +5 +5 8Bit 8Bit +5 +5 ISP ISP 7-3. Schematic Diagrams [...]

7-3 7. Schematic Diagram 7-4. Schematic Diagrams (IP Board) SMPS Part [...]

7-4 7. Schematic Diagram Inverter Part [...]

7-3 7. Schematic Diagrams 7-5. Schematic Diagr ams (Main PBA) This Document can not be used without Samsungs authorization. 105'C 105'C 105'C SDR3.3 VDDC VDDP AVDC1.8 VDDC VDDP VDVI SDR3.3 AVDC3.3 AVDC3.3 AVDC1.8 VDVI CHK_DSUB 56OHM 100PF +3.3V_DIODE R111 390OHM C110 4.7NF 4.7NF 4.7NF 10NF 4.7NF 4.7NF RED+ RED- BLU+ HSYNC VSYNC +3.3V[...]

4-1 4. Troubleshooting 4. T rou ble sh oo ting 4- 1. T r ou bl es ho ot in g Set cu sto m m ode as fo llo ws bef ore be gin nin g a re pai r . • R eso lut ion : 1 440 x 900 • V -freq uen cy: 60 Hz If the sc ree n i s b lan k, che ck whe the r t he pow er cor d i s c onn ect ed cor rec tly . The ci rcu its to ch eck : • W hen th e r ast er doe[...]

4-2 4. Tr oub les hoo tin g 4- 2. W he n th e Po we r Does N ot T ur n On Sym pto m - Wh en tur nin g o n t he Pow er but ton af ter co nne cti ng the po wer ca ble , t he LED at th e f ron t o f t he mon ito r d oes no t o per ate . Maj or chec kpo int s - Wh en tur nin g o n t he Pow er but ton af ter co nne cti ng the po wer ca ble , t he LED at[...]

4-3 4. Troubleshooting 4- 2- 1. Circ ui t dia gram s wh en th e po we r do es not tu rn o n[...]

4-4 4. Tr oub les hoo tin g 4- 3. W he n th e sc re en is bl an k (A na log) Sym pto m - L Eve n t hou gh the LE D p owe r t urn s o n, the sc ree n i s b lan k w hen co nne cti ng the VG A cab le. Maj or chec kpo int s - E ven th oug h t he LED po wer tu rns on , t he scr een is bl ank wh en con nec tin g t he VGA cabl e. - C hec k t he D-s ub cab[...]

4-5 4. Troubleshooting 4- 3- 1. When a b lan k sc re en i s d ispl ay ed ( Ana log) 3 4 ② ①[...]

4-6 4. Tr oub les hoo tin g 4- 3- 2. W avef or ms wh en n o sc re en is d is pl ay ed (Ana lo g) ① ④ ③[...]

4-7 4. Troubleshooting 4- 4. E rr or E xa mp le s and Act io ns Err or Appea ran ce Sym pto ms and Acti ons Rem ark s Sy mp to m: DVI si gn al s ar e no t re co gn iz ed . Ca us e: Th is e rr or o cc ur s be ca us e th e PC c an no t re co gn iz e th e mo de i nf or ma ti on s in ce t he DV I DD C is n ot i np ut t o th e mo ni to r . Ac ti on : In[...]

4-8 4. Tr oub les hoo tin g 4- 5. Ad ju st ment 4- 5- 1. Serv ic e Adju st me nt C on di ti ons Pre cau tio ns bef ore a Ser vic e Adj ust men t 1) Che ck whe the r t he dev ice s f or the se rvi ce adj ust men t a re ope rat ing no rma lly . 2) Sec ure a spa ce tha t i s s uf cie ntl y w ide fo r d isa sse mbl ing th e m oni tor . 3) Pre par e [...]

4-9 4. Troubleshooting 4- 5- 2. Serv ic e Fun ctio n Sp ec ic atio ns Checking the Code V ersion 1. Che ck the MC U c ode ve rsi on and ch eck sum af ter en ter ing SV C M ode . 2. Ente rin g S VC Mod e - Adj ust th e B rig htn ess an d C ont ras t v alu es to 0. - H old do wn the En ter bu tto n f or ve (5 ) s eco nds . - Th e S VC Fun cti o[...]

4-10 4. Tr oub les hoo tin g 2. Pre ss the - but ton to ch ang e t he set tin g t o O n o r O f f. When replacing the panel Aft er rep lac ing th e p ane l, mov e t o t he Pan el ite m a nd hol d d own th e M enu bu tto n f or ve (5 ) s eco nds . The Ch . N o i s i ncr eme nte d b y 1 an d t hen bo th the On T ime an d C ycl e a re set to 0. [...]

4-11 4. Troubleshooting Inputting the DDC Data Use th e D DC Man age r M TI- 205 0 v ers ion or la ter . 1) Cli ck the Op en [F5 ] i con . 2) Sel ect a por t. 3) Ope n a DD C  le. 4) Sel ect a dat e a nd cli ck the OK [S ave ] b utt on. 5) Cli ck the Ne xt [OK ] b utt on. 6) Ent er the se ria l n umb er and th en pre ss the En ter bu tto n When [...]

4-12 4. Tr oub les hoo tin g Inputting the MCU Data 1) Che ck the fo llo win g o pti ons . - Man ufa ctu re: MS T AR - Dev ice T ype: TSU M16 _RO M12 8K_ ext _a sh - Com mun ica tio n P ort : D SUB 15 (An alo g) - Ext ern al Mem ory : P MC2 5L V010 E 2) Cli ck the Lo adF ile bu tto n, sel ect an MC U c ode l e, and th en cli ck the Op en [O] [...]

4-13 4. Troubleshooting 3) Cli ck the Auto Pr ogr am but ton . 4) Whe n p rog ram min g a nd ver ic ati on are co mpl ete , h ard po wer th e m oni tor of f and th en on aga in. 3[...]

4-14 4. Tr oub les hoo tin g Me mo[...]

6-1 6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board Lamp wire for Panel L VDS for Panel VGA Input[...]

6-2 6. Wiring Diagram 6-2. Wiring Diagram - IP Board Function Connector (Connect to IP-Board) RGB Connector (PConnect to PC) L VDS Connector (Connect to Panel) IP board EEPROM 3708-001 150 Scaler SE717M-LF 371 1-003847 3701-001219 Flash memory[...]

6-3 6. Wiring Diagram 6-3. Connector Functions Connector Functions CN600 Supplies 5V from the power board to the main board and transmits the PWM output from the power board to the inverter . *When a problem occurs: The No Power and Blank Screen errors may occur . CN1 ~ CN4 In Transmits the lamp current (6mA ~ 7mA) generated in the inverter to the [...]

6-4 6. Wiring Diagram Memo[...]