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Now downloading free:LG - Goldstar Studioworks 45i

LG - Goldstar Studioworks 45i free download

Computer monitors - CRT, TFT, LCD, touch screen, plasma display - service manuals and repair information

File information:
File name:LG STUDIOWORKS 45I.rar
[preview Studioworks 45i]
Size:1141 kB
Extension:
Mfg:LG - Goldstar
Model:Studioworks 45i 🔎
Original:
Descr:Manual de Servicio + Programa de ajuste
Group:Electronics > Computer equipment > Monitors
Uploaded:25-08-2004
User:eralonso
Multipart:No multipart

Information about the files in archive:
Decompress result:OK
Extracted files:6
File name CS486_ADJUST.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. Adjust side-pincushion ( ) with S-PCC in the , buttons on the alignment program or monitor to be the best condition. Adjust trapezoid ( ) with TRAPEZOID in the , buttons on the alignment program or monitor to be the best condition. Display from Mode 2 to Mode 6 and repeat above adjustment. 4. Adjustment for White Balance and Luminance. Set the White Balance Meter. Demagnetize CRT with the demagnetizer. (external degaussing coil). Display color 0,0 pattern at Mode 1. Set Brightness ( ) volume to max and VR826 (SUB-BRIGHT) volume to center position. Set Contrast ( ) volume to max position. Set VR357 (R-BIAS) and VR367 (G-BIAS) to min and VR347 (B-BIAS) to center position. Adjust Screen control on the FBT to 0.2~0.3FL of the raster luminance. Adjust VR357 (R-BIAS) and VR367 (G-BIAS) to x=0.281 0.01 and y=0.311 0.01. Adjust VR826 (SUB-BRIGHT) to 0.2~0.3FL of the raster luminance. Display color 15,0 box pattern (70 70mm) at Mode 1. Adjust VR850 (SUB-CONTRAST) to 40~50FL of the raster luminance. Adjust VR313 (R-DRIVE) and VR314 (G-DRIVE) to x=0.281 0.003 and y=0.311 0.003. Adjust VR850 (SUB-CONTRAST) to 55 1FL of the box pattern luminance at Mode 1. Display color 15,0 full white patten at Mode 1. Adjust VR842 (ABL) to 32 1FL of the luminance. 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 min position. 5. Adjustment for Focus. Set the Brightness ( ) and Contrast ( ) volume to max position. Display H character in the full screen at Mode 4. Adjust to the best focus with the Focus control on the FBT. ADJUSTMENT PROCEDURE & METHOD 1. Adjustment for B+ Voltage Display cross hatch pattern at Mode 5. Adjust horizontal size with , buttons to 250mm. Adjust vertical size ( ) with , buttons to 185mm. Adjust J12 voltage to 130 0.2V with VR705. 2. Adjustment for Horizontal Raster Center Display cross hatch pattern at Mode 5. Adjust the raster should be center of the screen with SW731. 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. Set E ST Switch to OFF of the adaptor. (Refer to see Figure 1.) Display cross hatch pattern at Mode 1. Adjust horizontal size with H-SIZE in the , buttons on the alignment program or monitor to 250 1mm. Adjust horizontal position ( ) with H-POSI in the , buttons on the alignment program or monitor to center of the screen. Adjust vertical size ( ) with V-SIZE in the , bu
File name CS486_BLOCK.pdf

File name CS486_EXPLO.pdf

EXPLODED VIEW 7 24 4 3 5 23 8 6 B EXPLODED VIEW PARTS LIST A 9 10 11 12 13 14 2 2 2423GA0A36A 3 4 5 339-002B 6868T14002A 150-A29N 4814TKV004A 4815TKV004B 407-S88A 6174Z-2001J 407-S87D 4920TKC005A 4920TKP023A 407-S29B 4950TKE002A 6621TAZ002A 4920TKP012A CDT, M34KWW 30XX32R6 FOR EQUATORIAL HEMISPHERE Ref. No. Part No. 3091TKA001D CABINET, LOGO FOR CABINET, LOGO FOR Description Q'ty 1 Material 15 1 3091TKA001E 2055-10671M CDT, M34KWW 30XX32N6 FOR NORTHERN HEMISPHERE 1 SCREW, PHP+5Ąż30BP(FZMY) +GW22 LEAD WIRE, CRT GROUND DEGAUSSING COIL VIDEO SHIELD (FRONT) VIDEO SHIELD (REAR) PLATE, HEAT SINK FOR Q341, Q351, Q361 FBT, FMMPCII PLATE, HEAT SINK FOR IC601 PLATE, HEAT SINK FOR D741 PLATE, HEAT SINK FOR Q731, Q753, D744 PLATE, HEAT SINK FOR Q704 PLATE, GROUND TERMINAL AC SOCKET PLATE, HEAT SINK FOR IC901 4 1 1 1 1 3 1 1 1 1 1 1 1 1 1 2 1 1 1 2 4 1 1 SPTE-C, T0.3 SBHG1-A, T0.6 AL, T1.5 AL, T2.0 AL TERN SHEET, T1.0 AL SPTE-C, T0.3 SPTE-C, T0.3 TERN SHEET, T1.0 16 17 18 25 6 7 8 9 10 11 19 20 12 13 14 15 16 17 6871TMH035A MAIN PCB ASS'Y 332-102F 4810TKM011A 4814TKK019A 4814TKK018A 4940TKC006B 332-102F 3809TKA001B 3043TKK009B 3313T14003B SCREW, PTP+4Ąż20BP (MSWR/FZMY) MAIN BRACKET PLATE, SHIELD FOR MPR-II BOTTOM BRACKET KNOB, CONTROL SCREW, PTP+4Ąż20BP (MSUR/FZMY) BACK COVER TILT/SWIVEL CHASSIS ASS'Y, MAIN TOTAL FOR USA/CAN CHASSIS ASS'Y, MAIN TOTAL FOR MEXICO (LGEMS) CHASSIS ASS'Y, MAIN TOTAL FOR PANAMA (LGEPS) PCB ASS'Y, VIDEO TOTAL 22 18 19 1 21 20 21 22 23 24 - 26 - - 27 - 25 A 3313T14003C 3313T14003E 1 B 6871TVH023A 1 - 28 -
File name CS486_PART.pdf

REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE : S SAFETY Mark AL ALTERNATIVE PARTS *S *AL LOC. NO. MODEL: StudioWorks 45i PART NO. MAIN BOARD CAPACITORs C401 C402 C403 C404 C421 C424 C451 C461 C462 C463 C601 C603 C604 C606 C621 C622 C625 C701 C702 C703 C704 C705 C706 C707 C708 C709 C710 C711 C712 C713 C721 C722 C723 C724 C725 C726 C731 0CN1040K949 0CE1056K618 0CC2200K405 0CC2200K405 181-288G 0CN1040K949 0CK2210K515 0CK2210K515 0CK2210K515 0CK2210K515 0CE1086F630 0CC6800K405 0CE4766L618 181-288D 181-310D 181-305A 0CK1020K515 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CN1040K949 0CE2256K618 181-288R 181-288N 0CQ3321N419 181-288T 181-288B 181-288C 0CK5610K515 DESCRIPTION / SPECIFICATION DATE: 1997. 4. 1. REMARK CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, ELECTROLYTIC, 1.0U SMS 50V M FM5 TP5 CAPACITOR, 22P 50V J SL, TP CAPACITOR, 22P 50V J SL, TP CAPACITOR, POLYESTER, MKT 100V 334JTR PHS26334 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 220P 50V K B TS CAPACITOR, 220P 50V K B TS CAPACITOR, 220P 50V K B TS CAPACITOR, 220P 50V K B TS CAPACITOR, AL.ELECTROLYTIC, 1000M SMS 16V M FM5 CAPACITOR, 68P 50V J SL, TP CAPACITOR, AL.ELECTROLYTIC, 47 UF SMS,SG 63V M FL TP CAPACITOR, POLYESTER, MKT 100V 473JTR PHS26473 CAPACITOR, AL.ELECTROLYTIC, CE SM-BP(D) 50V 1UF TP 5 CAPACITOR, POLYPROPYLENE, MPP 250V 104J S=10.0 CAPACITOR, CERAMIC (HIGH DIELECTRIC) 1000PF 50V K CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 0.1UF 50V Z F TA52 CAPACITOR, 2.2U SMS 50V M FM5 TP5 CAPACITOR, POLYESTER, MKT 100V 123JTR PHS86123 CAPACITOR, POLYESTER, MKT 100V 103JTR PHS86103 CAPACITOR, 3300P 100V J POLY NI TP CAPACITOR, POLYESTER, MKT 100V 223KTR PHS85223 CAPACITOR, POLYESTER, MKT 100V 104JTR PHS26104 CAPACITOR, POLYESTER, MKT 100V 224JTR PHS 26224 CAPACITOR, 560P 50V K B TS - 29 - *S *AL LOC. NO. C732 C733 C734 C735 C736 C739 C740 C741 C742 C743 C751 C752 C753 C755 C756 C757 C758 C759 C761 C762 C763 C764 C765 C766 C771 C772 C773 C774 C775 C776 C777 C781 C782 C783 C784 C785 C786 C787 C788 C789 C791 C792 C793 C901 C901 C901 MODEL: StudioWorks 45i PART NO. 181-288C 0CK2220K515 0CN1040K949 0CE4766H618 0CE2256K618 0CK4710W515 0CK4710W515 0CN1040K949 181-314K 181-288B 0CC4710K405 0CE1076F618 0CQ1021N419 181-305W 181-309Q 181-306J 181-302Q 0CK10201515 0CE4766F618 181-288D 0CQZTBU002F 181-305J 0CN1040K949 0CK2220K515 181-305C 0CN1040K949 0CN1040K949 181-305G 0CN1040K949 0CN1040K949 0CN1040K949 0CE2266H618 0CE1056K618 0CK1030W510 0CE2266K618 0CE4756P618 0CN1040K949 0CE1056K618 0CE1056K618 0CN1040K949 0CK1030W510 0CE1056R618 0C
File name CS486_SCHEMA.pdf

File name CS486_TROUBLE.pdf

TROUBLE SHOOTING 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, D937 OR THEIR CONNECTED COMPONENTS NO 6.3V, 13V, 40V, 50V, 77V 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 13V 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 CRT 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 CRT HEATER VOLTAGE? (6.3 0.6V) 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 CRT? 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 (13V)? NO TROUBLE IN 13V LINE, R601, C601 YES CHECK IC601 PIN 7 (40V)? NO TROUBLE IN 40V 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 PIN 41, 42 (H/V SYNC) NO H/V SYNC SIGNAL CHECK PC, (PC IS NOT GOING INTO DPM OFF MODE) Q451, Q452 INPUT H/V SYNC CHECK IC401 PIN 8, 9 WAVEFORM? (4MHz) YES NO TROUBL
File name CS486_WIRING.pdf

WIRING DIAGRAM P703 P702 P902 ss+ P701 P401 P903 AC Socket FBT P901 Signal Cable P302 P301 P304 P303 -7-



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