LG MU-50PZ90V Service Manual
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LG MU-50PZ90V Service Manual

LG MU-50PZ90V Service Manual

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PLASMA MONITOR
SERVICE MANUAL
CHASSIS : RF-03GB
MODEL : MU-50PZ90V/M/C
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

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  • Page 1 CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//lgservice.com/techsup.html PLASMA MONITOR SERVICE MANUAL CHASSIS : RF-03GB MODEL : MU-50PZ90V/M/C 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. When the exposed metal has no return path to the chassis the CANADA: LG Electronics Canada, Inc. 550 Matheson reading must be infinite. Boulevard East Mississauga, Ontario L4Z 4G3 An other abnormality exists that must be corrected before the receiver is returned to the customer.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........4 SPECIFICATIONS..............6 EXTERNAL CONTROL DEVICE SETUP......8 IR CODE................14 ADJUSTMENT INSTRUCTION...........16 PRINTED CIRCUIT BOARD ..........20 BLOCK DIAGRAM...............25 EXPLODED VIEW...............26 EXPLODED VIEW PARTS LIST .........27 REPLACEMENT PARTS LIST ..........28 SCHEMATIC DIAGRAM............- 3 -...

  • Page 4: Description Of Controls

    DESCRIPTION OF CONTROLS Controls Controls Front Panel Controls Front Panel Controls - This is a simplified representation of front panel. Here shown may be somewhat different from your monitor. ON/OFF Buttons Main Power Button INPUT SELECT Button VOLUME ( ) Buttons MENU Button Remote Control Sensor Power Standby Indicator...

  • Page 5: 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 6: Specifications

    SPECIFICATIONS Product Specifications Product Specifications MODELS MU-50PZ90M / MU-50PZ90V Width (inches / mm) 48.2 / 1223 Height (inches / mm) 28.9 / 734 Depth (inches / mm) 4.1 / 105 Weight (pounds / kg) 95.2 / 43.2 Power requirement AC120V, 60Hz...
  • Page 7 SPECIFICATIONS Monitor Display Specifications (RGB-PC / DVI-PC Mode) Horizontal Vertical Horizontal Vertical Resolution Resolution Frequency(KHz) Frequency(Hz) Frequency(KHz) Frequency(Hz) 31.468 70.09 31.500 60.00 640x350 37.861 85.08 852x480 35.000 70.00 31.469 70.08 37.500 75.00 720x400 37.927 85.03 48.363 60.00 31.469 59.94 70.06 1024x768 56.476 35.000...

  • Page 8: External Control Device Setup

    EXTERNAL CONTROL DEVICE SETUP - Connect the RS-232C input jack to an external control device (such as a computer or an A/V control system) and control the Monitor’s functions externally. - Connect the serial port of the control device to the RS-232C jack on the Monitor back panel. - RS-232C connection cables are not supplied with the Monitor.
  • Page 9 EXTERNAL CONTROL DEVICE SETUP Set ID Set ID - Use this function to specify a monitor ID number. - Refer to ‘Real Data Mapping 1’. See page 27. 1. Press the MENU button and then use the button to select the SPECIAL menu. D D / E E VIDEO Language...
  • Page 10 EXTERNAL CONTROL DEVICE SETUP 04. Screen Mute (Command2:d) 01. Power (Command2:a) G To control Power On/Off of the Monitor. G To select screen mute on/off. Transmission Transmission [k][a][ ][Set ID][ ][Data][Cr] [k][d][ ][Set ID][ ][Data][Cr] Data 0 : Power Off 1 : Power On Data 0 : Screen mute off (Picture on) 1 : Screen mute on (Picture off)
  • Page 11 EXTERNAL CONTROL DEVICE SETUP 08. Brightness (Command2:h) 13. Remote Control Lock Mode (Command2:m) G To adjust screen brightness. G To lock the remote control and front panel controls on the You can also adjust brightness in the Video menu. monitor Transmission Transmission [k][h][ ][Set ID][ ][Data][Cr]...
  • Page 12 EXTERNAL CONTROL DEVICE SETUP 17. PIP Position (Command2:q) 21. Color Temperature (Command2:u) G To select sub picture position for PIP. G To adjust color temperature. You can also adjust ACC in the Video menu. You can also adjust the sub picture position using Win.position on the remote control or in the Twin menu.
  • Page 13 EXTERNAL CONTROL DEVICE SETUP 25. PIP Input Select (Command2:y) 29. Orbiter Time Setting (Command2:r) G To adjust orbiter operation time term. G To select input source for sub picture in PIP mode. Transmission Transmission [k][y][ ][Set ID][ ][Data][Cr] [j][r][ ][Set ID][ ][Data][Cr] Data 0: RGB 1: Component Data Min: 1 ~ Max: FE...

  • Page 14: Ir Code

    IR CODE How to Connect How to Connect G Connect your wired remote control to the Remote Control port on the Monitor. Remote Control IR Code Remote Control IR Code G Output waveform Single pulse, modulated with 37.917KHz signal at 455KHz Carrier frequency = 1/T Duty ratio = T1/T...
  • Page 15 IR CODE Code (Hexa) Function Note UP ( R/C Button DOWN ( R/C Button VOL+ ( R/C Button VOL- ( R/C Button POWER On/Off R/C Button (Power On/Off) POWER ON Discrete IR Code (Only Power On) POWER OFF Discrete IR Code (Only Power Off) MUTE R/C Button Number Key 0...

  • Page 16: Adjustment Instruction

    ADJUSTMENT INSTRUCTIONS You can check whether circuit adjustment is operated well or 1. Application Object not, as below. These instructions are applied to all of the PDP monitor, RF- (1) Display RGB1 to the Main picture, CVBS to the Sub 03GB.

  • Page 17: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 2) After turning the RV401, voltage of D.M.M adjustment as 6-3. Adjustment of White Balance same as Vs voltage which on label of panel Right/Top. Operate the Zero-calibration of the CA-100, then stick sensor (Deviation : ±0.5V) to PDP module surface when you adjust. For manual adjustment, it is also possible by the following P805 P805...

  • Page 18: Required Test Equipment

    ADJUSTMENT INSTRUCTIONS * [Cr]: Carriage Return ASCII code ‘0x0D’ Transmission * [ ]: ASCII code ‘space (0x20)’ [j][a][][Set ID][][FF][Cr] Transmission [command2[ [] [Set ID] [] [OK][Data][x] Acknowledge The Set transmits ACK (acknowledgement) based on this [a][][Set ID][][OK][Data][x] Data:0H~64H format when receiving normal data. At this time, if the data Input Select (Command: b)(Input Main Picture) $ Select the is data read mode, it indicates present status data.
  • Page 19 ADJUSTMENT INSTRUCTIONS (2) DDC Data input for Digital-RGB 1) Connect PC Serial to DVI Cable of JIG for DDC Adjustment to DVI terminal (DVI Jack). 2) Operate S/W for DDC record and select DDC Data for Digital RGB in Model Menu. 3) Operate EDID Write command.

  • Page 20: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN(TOP) - 20 -...
  • Page 21 PRINTED CIRCUIT BOARD MAIN(BOTTOM) - 21 -...
  • Page 22 PRINTED CIRCUIT BOARD SPK (TOP) POWER SWITCH SPK (BOTTOM) LOCAL KEY (TOP) LOCAL KEY (BOTTOM) - 22 -...
  • Page 23 PRINTED CIRCUIT BOARD AV BOARD (TOP) AV BOARD (BOTTOM) - 23 -...
  • Page 24 PRINTED CIRCUIT BOARD AV FIX BOARD (BOTTOM) AV FIX BOARD (TOP) - 24 -...

  • Page 25: Block Diagram

    BLOCK DIAGRAM - 25 -...

  • Page 26: Exploded View

    EXPLODED VIEW - 26 -...

  • Page 27: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Description 5900V12001A FAN,DC G1225S12B2 12X12X25 12V130MA 1500 168GM MOTOR L=260 4980V01061A SUPPORTER ASSY,EGI FAN LEFT MN-50PZ90V 4980V01060A SUPPORTER ASSY,EGI FAN RIGHT MN-50PZ90V 6348Q-C033S PDP,50 16:9 1365*768 PDP 50X20330.AKKGG 6348Q-C033J PDP,50 16:9 1365*768 PDP 50X20400.AKKGG 6348Q-C035D PDP,50 16:9 1365*768 PDP 50X20331.AKKGG 6871QRH035B...

  • 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 : 2004.4.7 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 Q413 0TR150400BA CHIP 2SA1504S(ASY) KEC D115 0DD226239AA CHIP KDS226 SOT23 CHIP 2SA1504S(ASY) KEC CHIP KDS226 SOT23 Q414 0TR150400BA D854 0DD226239AA 0TR150400BA CHIP 2SA1504S(ASY) KEC 0DD226239AA CHIP KDS226 SOT23 Q415 D855 Q416...
  • Page 30 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C025 0CE474SK6DC 0.47UF MVG 50V M C1506 0CK224DF56A 220000PF 2012 16V 10% 1UF MVG 50V M 220000PF 2012 16V 10% C026 0CE105SK6DC C1507 0CK224DF56A 0CE106SF6DC 10UF MVG 16V 20% 0CK224DF56A 220000PF 2012 16V 10% C029...
  • Page 31 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C793 0CE227VF6DC 220UF MV 16V 20% AR1460 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% 100UF MVG 16V M 22 OHM 1 / 16 W 1608 5% C812 0CE107SF6DC AR1461...
  • Page 32 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION AR552 0RRZVTA001C 4.7K OHM 1 / 16 W 1608 5% L007 6210VC0006A FILTER,EMC FBMH3216 HM501NT 4.7K OHM 1 / 16 W 1608 5% FILTER,EMC FBMH3216 HM501NT AR553 0RRZVTA001C L008 6210VC0006A...
  • Page 33 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L929 6210VC0006A FILTER,EMC FBMH3216 HM501NT LA201 6210VC0006A FILTER,EMC FBMH3216 HM501NT 6200JB8010L FILTER,EMC MLB2012091000LN2 R129 R130 6200JB8010L FILTER,EMC MLB2012091000LN2 R833 6200JB8010L FILTER,EMC MLB2012091000LN2 R834 6200JB8010L FILTER,EMC MLB2012091000LN2 FILTER,EMC 60 OHM R922 6200JB8013L X1470...
  • Page 34 April, 2004 P/NO : 3828VD0152A Printed in Korea CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Customer Interactive Center P.O.Box 240007, 201 James Record Road Huntsville, AL 35824 ATTN : CIC...

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