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LG StudioWorks 585E Service Manual
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LG StudioWorks 585E Service Manual

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COLOR MONITOR

SERVICE MANUAL

CHASSIS NO. : CA-126
FACTORY MODEL: CR575H
MODEL: StudioWorks 585E
*(
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
E-mail:http://www.LGEservice.com/techsup.html
) ID LABEL Model No.
Website:http://biz.LGservice.com
(CR575H-EL)
*Same looking with new chassis.
Issue Date; 2003. 02.

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Summary of Contents for LG StudioWorks 585E

  • Page 1: Color Monitor

    Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CA-126 FACTORY MODEL: CR575H MODEL: StudioWorks 585E (CR575H-EL) ) ID LABEL Model No. CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. *Same looking with new chassis. Issue Date; 2003. 02.

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............9 SAFETY PRECAUTIONS ........3 TROUBLESHOOTING GUIDE ......11 TIMING CHART ............4 EXPLODED VIEW........... 21 OPERATING INSTRUCTIONS ........ 5 REPLACEMENT PARTS LIST ....... 23 WIRING DIAGRAM ..........6 PIN CONFIGURATION........... 28 BLOCK DIAGRAM ........... 7 SCHEMATIC DIAGRAM .........

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS SAFETY-RELATED COMPONENT WARNING! X-RADIATION There are special components used in this color monitor The only potential source of X-radiation is the picture tube. which are important for safety. These parts are marked However, when the high voltage circuitry is operating on the schematic diagram and the replacement properly there is no possibility of an X-radiation problem.

  • Page 4: Timing Chart

    TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Sync Total Period Video Active Sync Duration Back Porch Blanking Time Front Porch Mode Resolution Frequency Time (A) Sort Polarity –...

  • Page 5: Operating Instructions

    OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW See Front Control Panel Power ON/OFF Button AC Power Socket Signal Connector Front Control Panel 3. SET Button 1. Power ON/OFF Button This button to enter a selection in the on screen display. This button is used to turn the monitor ON and OFF. 4.

  • Page 6: Wiring Diagram

    WIRING DIAGRAM P402 P405 P501 P701 S + S P702 Socket P902 Signal Cable P302 P301 - 6 -...

  • Page 7: Block Diagram

    BLOCK DIAGRAM Focus Screen - 7 -...

  • Page 8: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. Line Filter & Associated Circuit 7. D/D(DC to DC) Converter This is used for suppressing noise of power input line This circuit supplies DC voltage to the horizontal flowing into the monitor and/or some noise generated deflection output circuit by increasing DC 50V which is in the monitor flowing out through the power input line.

  • Page 9: Adjustment

    ADJUSTMENT GENERAL INFORMATION 7) Adjust parallelogram as arrow keys to be the best condition. All adjustment are thoroughly checked and corrected 8) Adjust balance of pin-balance as arrow keys to be when the monitor leaves the factory, but sometimes the best condition. several adjustments may be required.
  • Page 10 6. Adjustment for Focus. 17-1) Adjust R-DRIVE and B-DRIVE command to white 1) Set the Brightness and Contrast to max position. ± 0.003 and y=0.298 ± 0.003 on the balance x=0.283 2) Display H character in full screen at Mode 4. White Balance Meter with PC arrow keys.

  • Page 11: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK TROUBLE IN FUSE FUSE OK? (F901) (F901) CHECK C908 VOLTAGE? TROUBLE IN D900 (AC120V: 160VDC, AC220V: 304VDC) CHECK IC901 PIN 6 TROUBLE IN WAVEFORM (SQUARE WAVE IC901 COMES OUT?) CHECK TROUBLE IN D941, D942, D951,...
  • Page 12 2. NO CHARACTER NO CHARACTER CHECK TROUBLE IN IC302 P302 5V LINE PIN 7 (5V) ? TROUBLE IN CHECK PC SIGNAL, IC302 PIN 1, 3, 5 ? P301 SIGNAL CABLE CHECK TROUBLE IN IC302 PIN 14, 16, 18 ? IC302 CHECK TROUBLE IN IC303 PIN 7 (105V)
  • Page 13 3. NO RASTER NO VIDEO (POWER INDICATOR ON) CHECK ORANGE DPM MODE POWER INDICATOR (NO H and/or V SYNC) GREEN or ORANGE? GREEN CHECK TROUBLE IN D712 ANODE D712 (-157V)? CHECK TROUBLE IN G1 VOLTAGE? Q799 (-75 ~ -15V) CHECK TROUBLE IN CDT HEAT D941, Q942, Q941...

  • Page 14: No Horizontal Deflection

    4. NO HORIZONTAL DEFLECTION NO H-DEFLECTION (ONE VERTICAL LINE) CHECK TROUBLE IN Q706? Q706 CHECK B + VOLTAGE TROUBLE IN 50V LINE (50V)? CHECK T701(FBT) PIN 2 TROUBLE IN (31KHZ, 65V Q719, Q720, D710 54KHZ, 120V ? CHECK TROUBLE IN Q701 COLLECTOR Q701 WAVEFORM?
  • Page 15 5. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK TROUBLE IN IC401 IC401 (MICOM) PIN 5, 6? CHECK TROUBLE IN Q712, Q713 Q712, Q713, Q715, Q716 Q715, Q716? CHECK TROUBLE IN L703? L703 Cs SIGNAL TABLE HORIZONTAL FREQUENCY(fH) 30K ~ 33.9K TROUBLE IN 34K ~ 38.9K C722, C726, C729...
  • Page 16 6. NO VERTICAL DEFLECTION NO V-DEFLECTION (ONE HORIZONTAL LINE) CHECK TROUBLE IN IC601 PIN 2 13V LINE (13V)? CHECK TROUBLE IN IC601 PIN 4 -10V LINE (-10V)? CHECK TROUBLE IN IC701 PIN 5, 23? IC701 TROUBLE IN IC601, V-CIRCUIT - 16 -...
  • Page 17 7. TROUBLE IN OSD (ENTER BUTTON MUST BE PRESSED.) NO OSD CHECK TROUBLE IN IC301 B + ? 5V LINE DC 5V CHECK TROUBLE IN IC301 PIN 5, 10 IC601 PIN8 (V-FBP), WAVEFORM? T701 40V LINE (H-FBP) Pin 10 Pin 5 CHECK TROUBLE IN IC301 PIN 12...
  • Page 18 8. TROUBLE IN DPM (NO OFF MODE.) OFF MODE FAILURE CHECK CHECK PC, IC401 (MICOM) INPUT H/V SYNC SIGNAL (PC IS NOT GOING INTO PIN 30, 31 (H/V INPUT) DPM OFF MODE) SIGNAL? NO H/V SYNC CHECK TROUBLE IN IC401 PIN 13 X401 WAVEFORM? 24MHz...
  • Page 19 9. NO DEGAUSSING NO DEGAUSSING (DEGAUSS ON THE OSD MENU MUST BE PRESSED.) CHECK TROUBLE IN IC401 PIN 1 IC401 (MICOM) (0V)? CHECK TROUBLE IN Q953 COLLECTOR Q953 VOLTAGE? DC 13V CHECK TROUBLE IN P902 ? P902 CHECK TROUBLE IN RL901? RL901 TROUBLE IN...
  • Page 20 10. NO TILT (NO ROTATION ) NO TILT (NO ROTATION) CHECK TROUBLE IN IC401 PIN 21 IC401 ( MI COM) WAVE FORM ? CHECK TROUBLE IN 15V LINE 15V LINE, 6.3V LINE AND 6.3V LINE ? CHECK TROUBLE IN Q503 EMITTER Q501~Q503 VOLTAGE ? TROUBLE IN...
  • Page 21 - 21 -...

  • Page 22: Exploded View

    Part No. Ref. No. Description 3091TKB038B CABINET ASSEMBLY, CR575E IOMG B033 LUPOY 85964 (ASSY LOCAL) 6318L15002B CDT(CIRC), M36LBL803X49LAA LG-PHILIPS 64KHZ 29.1MM FST MPR 3809TKB013D BACK COVER ASSY, CB575 3808TKB017A CKD.TCO 3043TKK039C TILT SWIVEL ASSEMBLY, KCB575 B028A,T031A LOCAL 339-002D SCREW ASSY, PHP+5*30BP(FZMY)+GW18...

  • Page 23: Replacement Parts List

    REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE: 2003. 02. 19. DATE: 2003. 02. 19. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 24 DATE: 2003. 02. 19. DATE: 2003. 02. 19. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C913 0CE476CK638 “47UF SHL,SD 50V M FM5 TP 5” C914 0CZZTFT001P ECQB1H153JM3 153J 50V TP5.0 D900 0DRGF00090A GBL06 GULF BK GBL 600V 4A 12...
  • Page 25 DATE: 2003. 02. 19. DATE: 2003. 02. 19. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION L703 6140TYZ010E “LX31 GET DR14*15-C5.2,18.5T,” R311 0RD0271Q609 2.70 1/4W(3 5% TA52 L705 6140TBZ026C DR15*18-C9.8 100UH 0.1*30MM R312 0RD2001Q609 2K 1/4W(3 5% TA52...
  • Page 26 DATE: 2003. 02. 19. DATE: 2003. 02. 19. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R602 0RN1000F409 100OHM 1/6 W 1% TA52 R761 0RD3001Q609 3K 1/4W(3 5% TA52 R604 0RN2001F409 2K OHM 1/6 W 1.00% TA52 R762...
  • Page 27 DATE: 2003. 02. 19. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION OTHERs 430-858C AFC-520 BAE EUN TA 430-858C AFC-520 BAE EUN TA F901 0FZZTTH003B TIME LAG HBC 5A/250V 1811500 J302 0RD0471Q609 4.70 1/4W(3 5% TA52 RL901 6920TBB006A DY3M-DC12V DONGYANG 250VAC 5 SC301 6620TBC003A GZS10-2-103 DUOLING(SANLING)

  • Page 28: Pin Configuration

    PIN CONFIGURATION STV9211 Pin Configuration Pin Description - 28 -...
  • Page 29 BLOCK DIAGRAM STV9211 - 29 -...

  • Page 30: Schematic Diagram

    SCHEMATIC DIAGRAM NOTICE Since this is a basic schematic diagram. The value of components and some partial connection are sucject to be changed for improvement without notice. - 30 - - 31 -...

  • Page 31: Printed Circuit Board

    PRINTED CIRCUIT BOARD 1. CONTROL BOARD (Component Side) 2. CONTROL BOARD (Solder Side) 3. MAIN BOARD (Component Side) 4. MAIN BOARD (Solder Side) - 32 - - 33 -...
  • Page 32 Feb. 2003 P/NO : 3828TSL049E Printed in Korea...

This manual is also suitable for:

Cr575h-el

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