LG StudioWorks 441 free download

File name CM550_1.PDF

ASPECIFICATIONS 1. PICTURE TUBE Size Gun DefIection Angle Neck Diameter Phosphor Transmission Dot Pitch Low Radiation 3-2. Power Consumption : 15 inch (Flat Square Tube) : In-line : 90° : 29. 0mm : P22 : 56% : 0.28mm : MPR-II MODE NORMAL (ON) STAND-BY SUSPEND OFF H/V SYNC ON/ON OFF/ON ON/OFF OFF/OFF POWER CONSUMPTION LED COLOR GREEN less than 90 W less than 15 W less than 15 W less than 8 W ORANGE ORANGE 2. SIGNAL 2-1. Horizontal & Vertical Sync 1) Input Voltage Level : Low=0~1.2V, High=2.5~5.5V 2) Sync Polarity : Positive or Negative 2-2. Video Input Signal 1) Voltage Level a) Color 0, 0 b) Color 7, 0 c) Color 15, 0 2) Input Impedance 3) Video Color 4) Signal Format 4. DISPLAY AREA 4-1. Active Video Area 4-2. Display Color 4-3. Display Resolution 4-4. Video Bandwidth : 270 x 195mm (10.63" x 7.68") (Available for Full Screen) : Full Colors : 1024 x 768 / 60Hz (Non-Interlace) : 65MHz : 0~0.7Vp-p : 0Vp-p : 0.467Vp-p : 0.7Vp-p : 75 : R, G, B Analog : Refer to the Timing Chart 5. ENVIRONMENT 5-1. Operating Temperature: 0 ~ 35°C (32 ~ 95°F) (Ambient) 5-2. Relative Humidity : 10 ~ 90 % (Non-condensing) 5-3. Altitude : 10,000 ft 6. DIMENSIONS (with TILT/SWIVEL) Width : 417.0mm (14.17 ") Depth : 391.0mm (15.67 ") Height : 328.0mm (13.50 ") 2-3. Signal Connector 15-pin D-Sub Connector 2-4. Scanning Frequency Horizontal Vertical : 30 ~ 54kHz : 50 ~ 90Hz 3. POWER SUPPLY 3-1. Power Range AC 90~264V (Free Voltage), 50/60Hz, 1.5A Max. 7. WEIGHT (with TILT/SWIVEL) Net Weight : 14.2kg (29.77 Ibs) Gross Weight : 16.5kg (34.39 Ibs) -2-

File name CM550_10.PDF

DISASSEMBLY 1. TILT/SWIVEL REMOVAL 1) Set the monitor faces downward. 2) Pressing the latch (a), carefully remove the Tilt/swivel by pulling it upward. 3. TOTAL CHASSIS ASSEMBLY REMOVAL 1) Disconnect P701, P903, P301, P302 and the other connectors. 2) Remove three screws (a) from the Total Chassis Assembly. 3) Remove the Total Chassis Assembly. (a) P301 P302 (a) P701 P903 (a) 2. BACK COVER REMOVAL 1) Remove four screws (a) from the Back Cover. 2) Slide the Back Cover away from the Front Cabinet of the monitor. (a) 4. VIDEO BOARD ASSEMBLY REMOVAL 1) Remove four pins (a). 2) Remove CDT earth connector (b). 3) Carefully separate the Video Board Assembly from the CDT neck. 4) Discharge the remaining static electricity by shorting between the Anode Cap and the CDT ground. 5) Disconnect the Anode Cap from the CDT. (a) Anode Cap CDT Assembly (a) P304 (a) (b) -8- 5. SPEAKER AND CONTROL BOARD REMOVAL 1) Remove four screws (a). 2) Remove Speaker Shassis AssХy Left/Right. 3) Remove five screws (b). 4) Remove the Control Board Assembly. (a) 7. MAIN BOARD ASSEMBLY REMOVAL 1) Remove three screws (a). 2) Remove three screws (b). 3) Release five latches (c) from the Main Board Assembly. (a) (a) (b) (b) Main PCB Assembly (b) (b) (c) 6. BOTTOM SHIELD REMOVAL 1) Remove five screws (c). 2) Remove the Bottom Shield. Main Bracket (c) (c) (a) (a) Bottom Shield -9-

File name CM550_2.PDF

TIMING CHART VIDEO C B A E SYNC D F FACTORY PRESET MODE MODE MARK H O R I Z O N T A L MODE 1 -- MODE 2 -- 43.269 17.778 5.333 1.556 1.556 23.111 2.222 -- 85.008 11.093 0.670 0.023 0.069 11.764 0.578 640 x 480 85Hz MODE 3 -- 31.470 25.420 6.360 0.640 3.810 31.780 1.910 + 70.080 12.710 1.557 0.413 0.064 14.270 1.080 720 x 400 70Hz MODE 4 + 37.880 20.000 6.400 1.000 3.200 26.400 2.200 + 60.320 15.840 0.739 0.026 0.106 16.579 0.607 800 x 600 60Hz MODE 5 + 53.674 14.222 4.409 0.569 1.138 18.631 2.702 + 85.061 11.179 0.578 0.019 0.056 11.756 0.503 800 x 600 85Hz MODE 6 -- 48.360 15.750 4.920 0.370 2.090 20.680 2.460 -- 60.000 15.880 0.786 0.062 0.124 16.670 0.600 1024 x 768 60Hz Sync Polarity Frequency Video Active Time Blanking Time Front Porch Sync Duration Total Period Back Porch Sync Polarity kHz µs µs µs µs µs µs A B C D E F 31.469 25.422 6.356 0.636 3.813 31.778 1.907 -- 59.940 A B C D E F 15.253 1.430 0.318 0.064 16.683 1.048 640 x 480 60Hz V E R T I C A L Frequency Video Active Time Blanking Time Front Porch Sync Duration Total Period Back Porch Hz ms ms ms ms ms ms Resolution -4-

File name CM550_3.PDF

CONTROL LOCATIONS 2 1 SW435 VR852 3 VR831 4 VR501 CONTROL 5 + SW434 SW433 SW432 SW431 6 - 7 8 MAIN VR850 9 10 11 VR842 VR705 12 VR901 FBT 16 VR314 13 VR357 17 VR313 14 VR347 15 VR367 VIDEO No. 1 2 3 4 5 6 7 8 9 Ref. No. SW435 VR852 VR831 VR501 SW434 SW433 SW432 SW431 VR850 Control Function POWER ON/OFF BUTTON CONTRAST BRIGHTNESS VIDEO VOLUME ADJUSTMENT UP ( SELECT RIGHT ( SELECT LEFT ( ) ) ) ADJUSTMENT DOWN ( No. 10 11 12 13 14 15 16 17 Ref. No. VR842 VR705 VR901 VR357 VR347 VR367 VR314 VR313 Control Function ABL ADJUSTMENT HIGH VOLTAGE ADJUSTMENT B+ ADJUSTMENT R-CUT OFF B-CUT OFF G-CUT OFF G-DRIVE R-DRIVE w v ) -6-

File name CM550_4.PDF

ADJUSTMENT GENERAL INFORMATION All adjustment are thoroughly checked and corrected when the monitor leaves factory, but sometimes several minor adjustment may be required. Adjustment should be following procedure and after warming up for a minimum of 30 minutes. · Alignment appliances and tools. - Programmable Signal Generator. (eg. VG-819 made by Astrodesign Co.) - E(E)PROM with each mode data saved. - Digital Voltmeter. - White Balance Meter. - Luminance Meter. 8) Adjust trapezoid ( ) with TRAPEZOID in the alignment program or +, ­ buttons on the monitor to be the best condition. 9) Display from Mode 2 to Mode 5 and repeat above adjustment. 4. Adjustment for White Balance and Luminance. 1) Set the White Balance Meter. 2) Demagnetize CDT with the demagnetizer. (external degaussing coil). 3) Adjust H x V size to 270 2mm x 195 2mm. 4) Display color 0,0 pattern at Mode 1. 5) Set Brightness ( ), Contrast ( ) volume to max position. 6) Set VR347 (B-BIAS) and VR357 (R-BIAS) to min and VR367 (G-BIAS) to 1/2 position. 7) Adjust Screen control on the FBT to 0.2~0.3FL of the raster luminance. 8) Adjust VR347 (B-BIAS) and VR357 (R-BIAS) to x=0.281 0.01 and y=0.311 0.01. 9) Adjust Screen control on the FBT to 0.3~0.4FL of the raster luminance. 10) Display color 15,0 box pattern (70 x 70mm) at Mode 1. 11) Set Brightness ( ), Contrast ( ) volume to max position. 12) Adjust VR850 (SUB-CONTRAST) to 55 1FL of the box pattern luminance. 13) Adjust VR313 (R-DRIVE) and VR314 (G-DRIVE) to x=0.281 0.003 and y=0.311 0.003. 14) Display color 15,0 full white patten at Mode 1. 15) Adjust VR842 (ABL) to 33 1FL of the luminance. 16) Check the x=0.281 0.01 and y=0.311 0.01 at the Contrast ( ), Brightness ( ) volume to max position and Contrast ( ) to max, Brightness ( ) volume to 10FL. 5. Adjustment for Focus. 1) Set the Brightness ( ) and Contrast ( ) volume to max position. 2) Display H character in the full screen at Mode 4. 3) Adjust to the best focus with Focus control on the FBT. ADJUSTMENT PROCEDURE & METHOD Set Contrast ( position. ) and Brightness ( ) volume to max 1. Adjustment for B+ Voltage 1) Display cross hatch pattern at Mode 5. 2) Adjust VR901 to 50 0.2Vdc at D932 cathode voltage. 2. Adjustment for High Voltage 1) Display cross hatch pattern at Mode 5. 2) Adjust J12 voltage to 128 0.2Vdc with VR705. 3. Adjustment for Screen Image (Factory Mode) Install adaptor and cable for adjustment such as figure 1 and run alignment program on DOS for IBM compatible PC. 1) Set E ST Switch to OFF of the adaptor. (Refer to see Figure 1.) 2) Display cross hatch pattern at Mode 1. 3) Adjust horizontal size ( ) with H-SIZE in the alignment program or +, ­ buttons on the monitor to 270 1mm. 4) Adjust horizontal position ( ) with H-POSI in the alignment program or +, ­ buttons on the monitor to center of the screen. 5) Adjust vertical size ( ) with V-SIZE in the alignment program or +, ­ buttons on the monitor to 195 1mm. 6) Adjust vertical position ( ) with V-POSI in the alig

File name CM550_5.PDF

TROUBLESHOOTING GUIDE BASIC GUIDE CHECK SMPS SECONDARY B+ OUTPUT NO FOLLOW NO POWER PROCEDURE YES CHECK HORIZONTAL OUTPUT WAVEFORM NO FOLLOW NO RASTER PROCEDURE YES CHECK VERTICAL OUTPUT WAVEFORM NO FOLLOW NO VERTICAL DEFLECTION PROCEDURE YES CHECK VIDEO OUTPUT WAVEFORM NO FOLLOW NO CHARACTER, NO CONTRAST PROCEDURE YES FOLLOW OTHER PROCEDURES - 14 - 1. NO POWER NO POWER CHECK C908 DC VOLTAGE? DC=MORE THAN 130V YES NO TROUBLE IN F901, R901, D901, D902 CHECK T901 PIN 3 ? NO CHECK IC901 NO TROUBLE IN Q901, Q902, IC901,R904, R905, R912, D906, D907 YES YES TROUBLE IN D909, R916 CHECK SMPS SECONDARY DC VOLTAGE ? TROUBLE IN D931~D933, D936 OR THEIR CONNECTED COMPONENTS NO 6.3V, 14V, 50V, 72V YES CHECK IC931 PIN 3 VOLTAGE (5V)? NO TROUBLE IN IC931 CIRCUIT YES TROUBLE IN OTHER PRIMARY CIRCUIT - 15 - 2. NO CHARACTER NO CHARACTER CHECK IC301 PIN 8 (8V)? YES NO TROUBLE IN IC302 14V LINE CHECK IC301 PIN 2, 4, 6 ? YES NO TROUBLE IN PC SIGNAL, C301, C302, C303 CHECK IC301 PIN 19 ? YES CHECK IC301 PIN 11, 15, 18 ? 1.2v NO TROUBLE IN CLAMP CIRCUIT NO TROUBLE IN IC301 CIRCUIT YES CHECK VIDEO OUTPUT Q341, Q351, Q361 ? YES CHECK R, G, B CATHODE VOLTAGE ? NORMAL=44~67V YES CHECK IC301 PIN 9 YES TROUBLE IN CDT SOCKET NO VIDEO OUTPUT: Q341, Q342, Q343, Q344, Q351, Q352, Q353, Q354, Q361, Q362, Q363, Q364 NO TROUBLE IN IC301 CIRCUIT TROUBLE IN VR347, VR357, VR367 NO FOLLOW NO CONTRAST PROCEDURE - 16 - 3. NO RASTER NO RASTER (LED COLOR IS GREEN) CHECK CDT HEATER VOLTAGE? (6.3 0.6V) ? ? ? ?e?@@@@@@@@@@@@@@@@? ?e?@@@@@@@@@@@@@@@@? ? ? ?eh@@ ?eh@@ ?eh@@ ?eh@@ ?eh@@ ?eh@@ ?e?@@@@@@@@@@@@@@@@? ?e?@@@@@@@@@@@@@@@@? ?eh@@ ?eh@@ ?eh@@ ?eh@@ ?eh@@ ?eh@@ ? ? ? ? ? NO TROUBLE IN HEATER VOLTAGE SUPPLY CIRCUIT ( Q935, Q936 etc) YES CHECK CRT G1 (0 ~ -50V)? NO TROUBLE IN G1 SUPPLY CIRCUIT (D793, C785, Q722, Q724, Q756, D794, D797 etc) YES CHECK R, G, B CATHODE OF CDT? NO FOLLOW NO CHARACTER PROCEDURE YES CHECK FBT PIN 2 DC 65~150V? NO FOLLOW NO POWER PROCEDURE YES CHECK FBT PIN 1? NO CHECK HORIZONTAL DEFLECTION CIRCUIT 1.000 ~1.200VP-P YES CHECK MUTE OR DPM CIRCUIT - 17 - 4. TROUBLE IN H/V SIZE, H/V POSITION, S-PCC, TRAPEZOID NO ADJUSTED H-/V SIZE, POSITION, S-PCC, TRAP. CHECK IC401 PIN 1, 2, 3, 38, 39, 40 ? NO TROUBLE IN IC401 (MICOM) YES CHECK IC701 PIN17, 18, 20, 21, 30, 32? NO TROUBLE IN IC701 YES TROUBLE IN PWM CIRCUIT - 18 - 5. NO VERTICAL DEFLECTION NO V-DEFLECTION (ONE HORIZONTAL LINE) CHECK IC601 PIN 3 (14V)? NO TROUBLE IN 14V LINE, R601, C601 YES CHECK IC601 PIN 7 (40V)? NO TROUBLE IN 50V LINE, R602, C604 YES CHECK IC701 PIN 12, 13? NO TROUBLE IN IC701 YES TROUBLE IN IC601, V- DEFLECTION CIRCUIT - 19 - 6. NO CONTRAST NO CONTRAST CHECK Q742? NO TROUBLE IN Q742 YES CHECK Q743? NO TROUBLE IN Q743 YES CHECK IC301 PIN 9 ? NO TROUBLE IN P902, P302, VR850 DC 0.8~5V YES TROUBLE IN IC301 - 20 - 7. TROUBLE IN DPM OFF MODE FAILURE (NO OFF MODE) CHECK IC401

File name CM550_6_B.PDF

VIDEO Signal R,G,B Video Drive Circuit MC13281 (IC301) R,G,B Video Output Circuit R,G,B PC H/V SYNC DDC Audio Signsl CDT Screen Secondary Rectifier Circuit Focus BLOCK DIAGRAM Transformer (T901) Microprocessor Circuit PC68HC705BD7 (IC401) Vertical Output Circuit TDA4866 (IC601) Anode - 10 L V Primary Rectifier Circuit Switching Control Circuit STR6653 ( IC901) Horizontal/Vertical Drive Circuit TDA4858 (IC701) H High Voltage Generation Circuit (FBT) D/D Converter E N Earphone Jack Audio AMP Speaker (L/R) AC INPUT VOLTAGE (90~264V) DESCRIPTION OF BLOCK DIAGRAM 1. Primary Rectifier Circuit This circuit transform AC line voltage to DC voltage as the supplied source for secondary circuit. 2. Switching Control Circuit This circuit operate to be kept output of the secondary rectified circuit in constant level any conditions; no load, full load, and line voltage variation, ... etc. The main function is operated by the IC901 (STR6653) synchronizing to horizontal frequency via a connector that tie around the core of the T701 (FBT). 3. Secondary Rectifier Circuit This circuit rectifying the pulse wave form of the transformer generated by switching control circuit. It is consists of capacitors and diodes. The output voltages are 72V, 50V, 14V, 6.3V, and 5V that are nacessary to the secondary circuit. 4. Video Pre-Amp Circuit This circuit pre-amplify the video signal (Red, Green and Blue) to make sufficient signal for the video output circuit. The function is operated by the IC301 (MC13281). 5. Video Output Circuit This circuit amplifies the video signal which comes from the video pre-amp circuit and amplified video signal is applied to the CDT cathode. 6. Microprocessor Circuit This circuit generate control signal that need to operating of horizontal and vertical drive circuit, DDC2B (Plug & Play), and DPM (energy saving) funtion. DDC2B (Plug & Play) function is operated by combination of H/V Sync and SDA/SCL signal. 7. Horizontal and Vertical Drive Circuit This circuit take function, that are H/V-position, sidepincushion, and trapezoid, with the output of microprocessor circuit. The generated vertical signal is applied to the vertical output circuit. The generated horizontal signal is applied to the horizontal output and high voltage generation circuit. These are controlled by the IC701 (TDA4858) circuit. 8. Vertical Output Circuit This circuit take the vertical ramp wave from the IC701 (TDA4858) and perform vertical deflection by supplying saw-tooth current from the IC601 (TDA4866) to the vertical deflection yoke. 9. High Voltage Generation Circuit This circuit used for generating pulse the primary coil of T701 (FBT). A boosted voltageРabout 24.5kVРappears at the secondary of T701 (FBT) and it is supplied to the anode of the CDT (Cathode Display Tube). 10. Blanking and Brightness Control Circuit. Blanking circuit eliminate retrace line by supplying negative pulse to the G1 of the CDT (Cathode Display Tube). Brightness circuit is used to

File name CM550_6_S.PDF

File name CM550_6_W.PDF

WIRING DIAGRAM SPEAKER-R SPEAKER-L P704 P705 P505 P506 P504 P501 P702 P703 P508 P902 S+ S P903 P401 P701 FBT AC Socket P502 E2 Signal Cable E3 P302 P301 P304 P303 -7-

File name CM550_7_LGCDT.PDF

EXPLODED VIEW 7 3 6 27 28 NO 1 2 PART NO 3091TKB025F 2423GB0A89N 339-002D 6868T14002G 150-A29A 407-H54A 407-S88A 6871TVH093A 4815TKV008L 6174Z-1003D 407-S87J 4920TKC007D 4920TKP038B 4950TKE002A 407-S29B 387-019S 407-T98T 3550TKK001C 4810TKM030C 5040TKM003B 4940TKC006A 6871TST095A 4950TKK123A 340-732Y 332-102F 6401TZZ013A 3809TKB012E 332-102F 3043TKK006D 3313T15043B 6871TVT093B 6871TMH090B CABINET ASS'Y CDT, M36LBL803X34R6LD SCREW, PHP+5x30BP(FZMY)+GW18 CDT GROUND WIRE DEGAUSSING COIL VIDEO SHIELD (FRONT) PLATE, HEAT SINK FOR Q341, Q351, Q361 VIDEO PCB ASS'Y VIDEO SHIELD (REAR) FBT, FMMPC51-M1003D PLATE, HEAT SINK FOR IC601 PLATE, SUB HEAT SINK FOR Q731, Q741, Q753 PLATE, SUB HEAT SINK FOR Q731, Q741, Q753 METAL, EARTH TERMINAL PLATE, HEAT SINK FOR Q704 AC SOCKET ASS'Y PLATE, HEAT SINK FOR IC901 REAR COVER MAIN BRACKET RUBBER, SUPPORT MOLDING CONTROL ROTARY KNOB CONTROL PCB ASS'Y PLATE, SHIELD FOR FBT BOTTOM BRACKET SCREW, PTP+4x20BP SPEAKER ASS'Y (L+R) BACK COVER ASS'Y SCREW, PTP+4x20BP TILT SWIVEL ASS'Y MAIN TOTAL ASS'Y VIDEO PCB ASS'Y MAIN PCB ASS'Y EXPLODED VIEW PARTS LIST DESCRIPTION Q'TY 1 1 4 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 2 3 1 1 1 2 1 1 4 1 1 1 1 LT REMARK 9 8 10 12 4 13 14 15 5 16 3 4 5 6 7 8 9 10 11 12 13 14 B 11 2 A C 15 17 18 16 17 29 18 19 20 21 22 23 19 23 20 22 21 24 25 26 27 28 29 A B C 24 26 1 25

File name CM550_S.PDF

Colour Monitor USER GUIDE BENUTZERHANDBUCH MANUEL D'UTILISATION GUIDA UTENTE GUIA DEL USUARIO StudioWorks 550M Tabla de Contenido Registro del Monitor Aviso ...E1 Reconocimientos de Marcas...E1 Precauciones Importantes Sobre Seguridad ...E2 Respecto A Las Instalaciones...E3 Respecto A La Limpieza ...E3 Respecto Al Reempaque ...E3 Base Giratoria e Inclinable Instalacion...E4 Instalaciones Generales Conexiones ...E5 Diagrama y Descripciones de los Controles Vista Frontal ...E6 Vista Trasera...E6 Panel de Control de Imagen Iconos de Control de Imagen...E8 Operaciуn General ...E9 Sistema de Administraciуn de Energia, MPR II y DDC Sistema de Administraciуn de Energia ...E10 Cumplimiento de Baja Radiaciуn (MPR II) ...E10 DDC (Canal de despliegue de informaciуn) ...E10 Caracteristicas de Audio y Conecciones de Audio Caracteristicas de Audio ...E11 Conecciones de Audio ...E11 Modos de Memoria de Video Cuadro de Seсales de Modo Que se Fijan Previamente en Fбbrica ...E12 Soluciуn de Problemas y Servicio Soluciуn de Problemas ...E13 Servicio ...E14 Especificaciones ...E15 i Registro del Monitor El Modelo y nъmero de serie se encuentran en la parte trasera de esta unidad. Estos nъmeros son exclusivos para esta unidad y no estбn disponibles para otros. Conviene anotar la informaciуn requerida aquн y guardar esta guнa como un rйcord permanente de su compra. Fecha de Compra Vendedor del que se comprу Direcciуn del Vendedor Telйfono del Vendedor Modelo No. Nъmero de Serie : : : : : : Aviso Todos lo