1. Manuals
  2. Brands
  3. LG Manuals
  4. Monitor
  5. MU-50PM10
  6. Service manual

LG MU-50PM10 Service Manual

Hide thumbs Also See for MU-50PM10:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Owner's Manual
PLASMA MONITOR
SERVICE MANUAL
CHASSIS : RF-043E
MODEL : MU-50PM10
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CANADA : http//biz.lgservice.com
USA
: http//www.lgservice.com
: http//lgservice.com/techsup.html

Advertisement

Table of Contents
loading

Related Manuals for LG MU-50PM10

Summary of Contents for LG MU-50PM10

  • Page 1 CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//lgservice.com/techsup.html PLASMA MONITOR SERVICE MANUAL CHASSIS : RF-043E MODEL : MU-50PM10 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Safety Precautions

    If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. CANADA: LG Electronics Canada, Inc. 550 Matheson When the exposed metal has no return path to the chassis the Boulevard East Mississauga, Ontario L4Z 4G3 reading must be infinite.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........4 SPECIFICATIONS..............7 ADJUSTMENT INSTRUCTIONS ..........8 TROUBLE SHOOTING GUIDE ...........13 BLOCK DIAGRAM...............24 EXPLODED VIEW...............26 EXPLODED VIEW PARTS LIST .........27 REPLACEMENT PARTS LIST ..........28 SCHEMATIC DIAGRAM............PRINTED CIRCUIT BOARD ........... - 3 -...

  • Page 4: Description Of Controls

    DESCRIPTION OF CONTROLS Controls Controls Front Panel Controls Front Panel Controls - This is a simplified representation of a typical front panel. The Front Panel Controls shown here may be somewhat different from your monitor. MU-42/50PM10/11 series ON/OFF MU-42/50PM20 series ON/OFF 1.

  • Page 5: Connection Options

    DESCRIPTION OF CONTROLS Connection Options Connection Options - Connection panels shown may be somewhat different from your monitor. Back Connection Panel Back Connection Panel RS-232C INPUT REMOTE DVI INPUT AUDIO INPUT RGB INPUT RGB OUTPUT AC INPUT EXTERNAL SPEAKER (CONTROL/SERVICE) CONTROL (MONO) COMPONENT INPUT...

  • Page 6: Remote Control Key Functions

    DESCRIPTION OF CONTROLS Remote Control Key Functions Remote Control Key Functions - When using the remote control, aim it at the remote control sensor on the monitor. - Under certain conditions such as if the remote IR signal is interrupted, the remote control may not function. Press the key again as necessary.

  • Page 7: Specifications

    SPECIFICATIONS MU-42PM12X MU-42PM11/20 MODELS MU-50PM10/11/20 42 / 1066 Width (inches / mm) 49.3 / 1253 25.8 / 656 Height (inches / mm) 29.3 / 745 3.8 / 97.5 Depth (inches / mm) 3.9 / 99.5 64.6 / 29.3 Weight (pounds / kg) 84.7 / 38.4...

  • Page 8: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 4. HDCP Download These instructions apply to the RF-043E Chassis. 4-1. Setting Up the LGIDS (1) Click on ‘setup’ to install in your directory. (2) After installation has completed, check if the file shown on 2.
  • Page 9 ADJUSTMENT INSTRUCTIONS (1) Click on ‘Key Generation (G)’. 4-3. HDCP Download Method (2) Input the number of the key in Generation count. (1) Input power of Stand-By 5V. ex) If 100 Keys are required, then just register 100 and (Download must be executed only when it is on Stand-by) next time it will automatically get 101.

  • Page 10: Required Test Equipment

    ADJUSTMENT INSTRUCTIONS 3) Turn RV501, to adjust the Va voltage to match the value Each PCB assembly must be checked by Check JIG Set marked on the label on the right/top of the panel. before assembly. (Take special note of the Power PCB, which (Deviation;...

  • Page 11: Required Equipment

    Check Sum is as below. Generator. MU-42PM11: CB 1) Input Signal: XGA 60Hz MU-42PM12X/MU-50PM10: DC 2) Input the Window Pattern(Horizontal 25%, Vertical 50%(Top High 25% + Bottom Low 25%)) 6) If Check Sum is not CB(or DC), repeat 3) ~ 4).
  • Page 12 ADJUSTMENT INSTRUCTIONS 9. Auto RGB Color Balance 9-1. Required Test Equipment Pattern Equipment: PC Pattern Generator (VG828, VG854, 801GF, MSP3240A) (16 Gray Scale Pattern output(RGB output Level: 0.7Vp-p) 9-2. Method of Auto RGB Color Balance (1) Input RGB Source : XGA 60HZ 16 Gray Scale Pattern (2) Press ADJ KEY on the S R/C.

  • Page 13: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 1. Power Board 1-1. General Power Flow Start check Doesn't the It is identical Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2. Check the Interface condition. signal condition.
  • Page 14 TROUBLE SHOOTING GUIDE 1-2. 3510V00182A Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 14 -...
  • Page 15 TROUBLE SHOOTING GUIDE 1-3. 3501V00180A Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 15 -...

  • Page 16: No Power

    TROUBLE SHOOTING GUIDE 2. No Power (1) Symptom No indication of Power. ¯ No front LED. ¯ (2) Check follow Power cord connected? Plug in power cord. Cable connecting the Line Filter Connect Cable. and Power Switch connected? Is the Power Switch connected to Connect Cable.

  • Page 17: Protect Mode

    TROUBLE SHOOTING GUIDE 3. Protect Mode (1) Symptom Will not fully turn on ¯ The Relay "clicks" ¯ Front LED changes from Green to Red ¯ (2) Check follow Is the Power Board Is output the normality Low/High Replace Power good? voltage except Stand-by 5V? Board.
  • Page 18 TROUBLE SHOOTING GUIDE 4. No Raster (1) Symptom Powers on but, no output on display. ¯ Front LED is green but, no Raster. ¯ (2) Check follow Is the Power Board Is output the normality Low/High Replace Power good? voltage except Stand-by 5V? Board.

  • Page 19: Abnormal Display

    TROUBLE SHOOTING GUIDE 5. Abnormal Display 5-1. No OSD (1) Symptom LED is green ¯ No OnScreen Display ¯ (2) Check follow Check the LVDS Is the LVDS cable Replace cable. cable? connected well? Reset cable. Replace Is the VSC Digital Operates the Thine Check Check...
  • Page 20 TROUBLE SHOOTING GUIDE 5-2. In case of does’t display the screen into specific mode (1) Symptom The screen does not become the display from specific input mode ¯ (AV, Component, RGB, DVI). (2) Check follow Check the all input mode should become normality display. ¯...
  • Page 21 TROUBLE SHOOTING GUIDE (4) Abnormal display in Component 480i mode Is the Video Decoder Are the Input voltage, IIC Replace IC Comm. and HV sync good? VPC3230 good? Is the DeInterlacer Are the Input voltage, IIC Replace IC S2300 good? Comm.
  • Page 22 TROUBLE SHOOTING GUIDE (6) Abnormal display in RGB DTV mode Are the Input voltage, IIC Is normal the Replace IC Comm. and HV sync good? CXA2101? Is normal the Are the Input voltage, IIC Replace IC Comm. and HV sync good? M52758? Are the Input voltage, IIC Is normal the Scaler?

  • Page 23: No Sound

    TROUBLE SHOOTING GUIDE 6. No sound (1) Symptom LED is green ¯ Screen display but no audio ¯ (2) Check follow Check Speaker Is the SPK cable Replace SPK cable cable? connected well? Reset cable. Audio normal on Is the Flat cable IC800 good? IC801 good? RGB/DVI?

  • Page 24: Block Diagram

    BLOCK DIAGRAM - 24 -...
  • Page 25 NOTES - 25 -...

  • Page 26: Exploded View

    EXPLODED VIEW - 26 -...

  • Page 27: Exploded View Parts List

    BUTTON,CONTROL 50PM10 NON 6KEY NON 3809V00502B BACK COVER ASSEMBLY,MU-50PM10 .AALLKG NON WARNING LABEL 3301V00041B PLATE ASSEMBLY,3300V00425B AND 3300V00319D MU-50PM10_20 6871VMMU18C PCB ASSEMBLY,MAIN RF-043A MU-50PM10 MAIN DIGITAL B/D MANUAL 6871VSMACBC PCB ASSEMBLY,SUB A/V RF043E MU-50PM10 SUB ANALOG MANAUL 6871VSME92A PCB ASSEMBLY,SUB PSW RF043A MAILBU 5020V01005A...

  • Page 28: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film RUN DATE : 2004.11.11 in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 29 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q302 0TR387500AA CHIP 2SC3875S(ALY) KEC D1301 0DD226239AA CHIP KDS226 SOT-23 CHIP 2SC3875S(ALY) KEC CHIP KDS226 SOT-23 Q305 0TR387500AA D1302 0DD226239AA 0TR387500AA CHIP 2SC3875S(ALY) KEC 0DD226239AA CHIP KDS226 SOT-23 Q306 D1303 Q307...
  • Page 30 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1074 0CE107SF6DC 100UF MVG 16V M C1391 0CE477SF6DC 470UF MVG 16V 20% 100UF MVG 16V M 47UF MVG 16V M C1077 0CE107SF6DC C1400 0CE476SF6DC 0CE106SF6DC 10UF MVG 16V 20% 0CE476SF6DC 47UF MVG 16V M C1108...
  • Page 31 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C634 0CE106SF6DC 10UF MVG 16V 20% JACK 10UF MVG 16V 20% C637 0CE106SF6DC 0CE106SF6DC 10UF MVG 16V 20% 6612JH003CA JACK,RCA PPJ137A C651 JK200 C671 0CE106SF6DC 10UF MVG 16V 20% JK201 6612J00010A JACK,RCA PPJ128A-1 2P...
  • Page 32 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION AR613 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% L1017 6210VC0006A FILTER,EMC FBMH3216 HM501NT 22 OHM 1 / 16 W 1608 5% FILTER,EMC FBMH3216 HM501NT AR614 0RRZVTA001D L1018 6210VC0006A...
  • Page 33 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L210 6200JB8010L FILTER,EMC MLB-201209-1000L-N2 6710V00136H REMOTE CONTROLLER FILTER,EMC MLB-201209-1000L-N2 L211 6200JB8010L 6410VUH005C POWER CORD,BP-301 2800MM V1625 6200JB8010L FILTER,EMC MLB-201209-1000L-N2 L212 6612VMV002B JACK,DRAWING UCT-EX-031 L213 6200JB8010L FILTER,EMC MLB-201209-1000L-N2 6850J00005A CABLE,DVI LVDS UL20276 AWG30 500MM L214...
  • Page 34 Nov., 2004 P/NO : 3828VD0206A Printed in Korea CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Electronics Alabama, Inc. P.O.Box 240007, 201 James Record Road Bldg 3 Huntsville, AL 35824...
  • Page 40 MAIN(TOP) MAIN(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM) POWER S/W(TOP) POWER S/W(BOTTOM) TUNER(TOP) TUNER(BOTTOM)

Table of Contents