LG RU-42PZ90 - Stand For 42 Inch Plasma EDTV Monitor Service Manual Download Page 1

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PLASMA TV
SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : RF-03GA

MODEL : RU-42PZ90

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Sep., 2003

Printed in Korea

P/NO : 3828VD0129Z

Summary of Contents for RU-42PZ90 - Stand For 42 Inch Plasma EDTV Monitor

Page 1: ...AUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 03GA MODEL RU 42PZ90 website http biz LGservice com e mail http www LGEservice com techsup html Sep 2003 Printed in Korea P NO 3828VD0129Z ...

Page 2: ...k With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on positioin connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the meas...

Page 3: ...4 EXTERNAL CONTROL DEVICE SETUP 7 IR CODE NEC FORMAT 13 ADJUSTMENT INSTRUCTIONS 15 BLOCK DIAGRAMS 18 EXPLODED VIEW 20 EXPLODED VIEW PARTS LIST 21 REPLACEMENT PARTS LIST 22 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARD TABLE OF CONTENTS ...

Page 4: ...INPUT SELECT Button VOLUME F F G G Buttons Power Standby Indicator Illuminates red in standby mode Illuminates green when the Plasma display is turned on Remote Control Sensor MENU Button E E D D Buttons Front Panel Controls Front Panel Controls DESCRIPTION OF CONTROLS ...

Page 5: ...or further information refer to Speaker Speaker Stand manual 7 RS 232C INPUT CONTROL SERVICE PORT Connect to the RS 232C port on a PC 8 DVI Digital Visual Interface INPUT RGB INPUT AUDIO INPUT JACKS Connect the Plasma display output connector from a PC to the appropriate input port 9 RGB OUTPUT PORT You can watch the RGB signal on another monitor connect RGB OUTPUT to another monitor s PC input po...

Page 6: ...ent menu Memorizes menu changes ENTER CH D D E E Channel button Selects the desired channel Selects menu options VOL F F G G Volume button Increases decreases sound level Adjusts menu settings INPUT SELECT Selects source TV Video Exp Video S Video Component RGB or DVI mode DASP Selects the sound appropriate to your viewing program character Flat Music Movie Sports or User SLEEP Sets the sleep time...

Page 7: ...A V control system and control the Plasma display s functions externally Connect the serial port of the control device to the RS 232C jack on the Plasma display back panel RS 232C connection cables are not supplied with the Plasma display T Type of Connector D Sub 9 Pin Male ype of Connector D Sub 9 Pin Male RS 232C Configurations RS 232C Configurations RS 232C Setup RS 232C Setup R L EXPANDED INP...

Page 8: ...ocol OK Acknowledgement The Plasma display transmits ACK acknowledgement based on this format when receiving normal data At this time if the data is data read mode it indicates present status data If the data is data write mode it returns the data of the PC computer Command2 Set ID OK Data x Error Acknowledgement The Plasma display transmits ACK acknowledgement based on this format when receiving ...

Page 9: ...ume mute on Volume off 1 Volume mute off Volume on k e Set ID Data Cr Acknowledgement e Set ID OK Data x 03 Aspect Ratio Command2 c Main picture format G To adjust the screen format You can also adjust the screen format using the ARC Aspect Ratio Control button on remote control or in the Screen menu Transmission Data 0 Wide screen 16 9 1 Normal screen 4 3 2 Full screen Zoom 3 Horizon k c Set ID D...

Page 10: ... DW but ton on the remote control or in the Special menu Transmission Data 0 PIP DW off 1 PIP 2 DW1 3 DW2 k n Set ID Data Cr Acknowledgement n Set ID OK Data x G To adjust the screen sharpness You can also adjust sharpness in the Video menu Transmission 11 Sharpness Command2 k Data Min 0 Max 64 Refer to Real data mapping 1 See page 34 k k Set ID Data Cr Acknowledgement k Set ID OK Data x 12 OSD Se...

Page 11: ...st balance You can also adjust balance in the Audio menu Transmission Data Min 0 Max 64 Refer to Real data mapping 1 See page 34 k t Set ID Data Cr Acknowledgement t Set ID OK Data x 18 Treble Command2 r G To adjust treble You can also adjust treble in the Audio menu Transmission Data Min 0 Max 64 Refer to Real data mapping 1 See page 34 k r Set ID Data Cr Acknowledgement r Set ID OK Data x 19 Bas...

Page 12: ...ansmission Data Min 0 Max 64 Refer to Real data mapping1 See page 30 j t Set ID Data Cr Acknowledgement t Set ID OK Data x 32 Auto Configure Command2 u G To adjust picture position and minimize image shaking automatically It works only in RGB PC mode Transmission Data 1 To set j u Set ID Data Cr Acknowledgement u Set ID OK Data x 25 PIP Input Select Command2 y G To select input source for sub pict...

Page 13: ...Data code TC Tf T1 C0 Carrier frequency FCAR 1 TC fOSC 12 Duty ratio T1 TC 1 3 Repeat frame C1 C2 C3 C4 C5 C6 C7 C0 C1 C2 C3 C4 C5 C6 C7 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 Repeat code 9 ms 4 5 ms 0 55 ms 9 ms 2 25 ms G Bit description G Frame interval Tf The waveform is transmitted as long as a key is depressed Bit 0 Tf Tf Tf 108ms 455KHz 0 56 ms 0 56 ms 1 12 ms Bit 1 2 24 ms How to C...

Page 14: ...on Power On Off Discrete IR Code Only Power On Discrete IR Code Only Power Off R C Button R C Button R C Button R C Button R C Button R C Button R C Button R C Button R C Button R C Button R C Button R C Button Video S video Component RGB DVI R C Button Component RGB DVI Discrete IR Code Input RGB Selection Discrete IR Code Input DVI Selection Discrete IR Code Input Component Selection Discrete IR...

Page 15: ...or the protection of data Micom does not permit any more adjustments after completion O In case of re adjustment operate First Value Setting Each PCB Assy must be checked prior to installation Especially be careful Power PCB Assy which can cause damage to PDP Module 3 POWER PCB Assy Voltage Adjustments Va Vs Voltage Adjustments 3 1 Test Equipment Digital Multi Meter DMM 3 2 Connection Diagram for ...

Page 16: ...m 5 receive Half Red 127 level signal for Pr offset adjustment 8 Press Vol key and operate To SET for Pr offset adjustment 9 Original Half Red 127 level screen will be presented about 5 10 seconds later and the OK indication appears This case Component Auto offset Gain adjustment will be completed O You can check whether circuit adjustment is correct or not below Item 4 1 1 Display RGB to the Main...

Page 17: ...ipment 2 S W for writing DDC EDID data write read 3 D Sub 15P cable D Sub to DVI Connector DVI D 6 2 Setting of Device 6 3 Preparation for Adjustments 1 Set devices as above and turn the PC JIG on 2 Open S W for writing DDC EDID data write read operated in DOS mode 6 4 Sequence of Adjustments 1 DDC Data Input for Analog RGB 1 Place the set on the table and turn the power on 2 Connect PC Serial to ...

Page 18: ... 18 BLOCK DIAGRAM ...

Page 19: ... 19 BLOCK DIAGRAM ...

Page 20: ... 20 EXPLODED VIEW 200 203 205 202 204 206 530 401 540 541 520 560 550 210 570 220 521 551 553 552 201 580 301 303 302 300 305 400 Tuner 720 710 700 ...

Page 21: ...Y NON FILTER SIDE 305 3790V00709A FILTER MECH MN 42PZ40S LGM42 01 MITSUI GLASS 400 3809V00245X BACK COVER ASSEMBLY MZ 42PZ90 NON PIGGY BLACK 401 3300V00096R PLATE A V AL 675 2 95 8 1 2 MZ 42PZ90 520 6871VMMP39A PCB ASSEMBLY MAIN RF03GA MU 42PZ44 VSC 521 4980V00793A SUPPORTER VSC EGI MZ 42PZ44 530 6871VSMU44B PCB ASSEMBLY SUB CONT RF03FA 90 TOOL 540 6871VSMV04B PCB ASSEMBLY SUB PSW RF03FA 90 TOOL 5...

Page 22: ...C1205 IC1401 IC1405 IC1406 IC201 IC202 IC301 IC301 IC302 IC401 IC401 IC402 IC402 IC403 IC403 IC404 IC405 IC405 IC407 IC410 IC415 IC501 IC502 IC503 IC504 IC601 IC701 IC702 IC703 0ISO208900A 0IZZVC0053A 0IAL241610B 0IMCRFA010A 0IFA753307A 0IMCRTI003A 0ISO211900A 0IAL242110A 0IAL242110A 0IMCRTI003A 0IPRPBB005A 0IMCRPH015A 0ISH122100B 0IMCRTI021A 0IMCRTI021A 0IMCRTI021A 0IMCRTI021A 0IMCRTI021A 0IIT323...

Page 23: ... 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SA1504S ASY KEC CHIP 2SC3875S ALY KEC LOCA NO PART NO DESCRIPTION Q478 Q479 Q720 Q721 Q722 Q723 Q724 Q725 D001 D001 D001 D002 D003 D004 D006 D011 D074 D075 D079 D100 D101 D102 D105 D106 D108 D109 D110 D111 D112 D113 D114 D115 D117 D118 D253 D254 D301 D302 D303 D304 ...

Page 24: ...VG 50V M 0 47UF MVG 50V M 1UF MVG 50V M 1UF MVG 50V M LOCA NO PART NO DESCRIPTION C029 C030 C030 C031 C034 C035 C038 C039 C040 C041 C042 C042 C043 C044 C045 C045 C046 C047 C047 C048 C050 C050 C051 C052 C053 C054 C055 C056 C057 C058 C059 C077 C078 C079 C084 C109 C110 C1102 C1106 C1107 C1108 C1109 C111 C112 C113 C114 C117 C119 C121 C123 C126 0CE106SF6DC 0CE107SF6DC 0CE105SK6DC 0CE105SK6DC 0CE476SF6D...

Page 25: ...25V M 47UF MVG 16V M 47UF MVG 16V M 3 3UF STD 50V 20 2 2UF STD 50V 20 47UF MVG 16V M LOCA NO PART NO DESCRIPTION C420 C421 C424 C427 C429 C431 C434 C436 C438 C440 C441 C441 C443 C445 C445 C448 C451 C454 C460 C463 C468 C469 C471 C472 C479 C485 C488 C489 C491 C494 C505 C506 C507 C510 C523 C524 C671 C672 C673 C674 C675 C676 C725 C726 C755 C758 C760 C765 C766 C769 C770 0CN105EJ56A 0CE107DF618 0CE107DF...

Page 26: ...A692 AR1066 AR1400 AR1401 AR1402 AR1403 AR1460 AR1461 AR1462 AR1463 AR1465 AR1466 AR1467 AR1468 AR1469 AR1470 AR1471 AR1472 AR1473 AR1474 AR1475 AR1476 AR1516 AR1517 AR260 AR261 AR262 AR263 AR264 AR265 AR400 AR401 AR402 AR403 AR460 AR461 AR462 6612J00010B 6612J00010B 380 068D 6612VAH001A 6612JH003CA 6612J00010A 380 068D 380 363K 6612BBBHN6A 6612VMV002A 6612JH003CA 380 068E 0RRZVTA001D 0RRZVTA001D ...

Page 27: ...IC413 L001 L002 L003 L004 L007 L008 L009 L010 L100 L101 L204 L303 L304 L403 L404 L405 L407 L411 L412 L421 L422 L424 L425 L871 L873 L874 L875 L876 L877 L878 L879 L880 L881 L882 L883 L884 L887 L888 L889 L890 L900 L901 L902 6600VM2006A 6200VJS001A 6200VJS001A 6200C000010 6200C000010 6200C000009 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0005A...

Page 28: ...HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT ...

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Page 34: ...PRINTED CIRCUIT BOARD MAIN TOP PIGGY BACK TOP PIGGY BACK BOTTOM MAIN BOTTOM AV TOP AV BOTTOM AV FIX TOP AV FIX BOTTOM POWER SWITCH CONTROL TOP CONTROL BOTTOM SPEAKER TOP SPEAKER BOTTOM ...

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