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LG RU-44SZ80L Service Manual
LG RU-44SZ80L Service Manual

LG RU-44SZ80L Service Manual

Lcd projection tv
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All manuals and user guides at all-guides.com
LCD PROJECTION TV
SERVICE MANUAL
CHASSIS : MB-042B
MODEL : RU-44SZ80L
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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Summary of Contents for LG RU-44SZ80L

  • Page 1 All manuals and user guides at all-guides.com CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//lgservice.com/techsup.html LCD PROJECTION TV SERVICE MANUAL CHASSIS : MB-042B MODEL : RU-44SZ80L CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2 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

    All manuals and user guides at all-guides.com TABLE OF CONTENTS SPECIFICATIONS..............4 DESCRIPTION OF CONTROLS ...........5 ADJUSTMENT INSTRUCTION...........12 PRINTED CIRCUIT BOARDS ..........15 BLOCK DIAGRAM...............26 EXPLODED VIEW...............28 EXPLODED VIEW PARTS LIST .........29 REPLACEMENT PARTS LIST ..........30 SCHEMATIC DIAGRAM............- 3 -...
  • Page 4: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS Product Specifications Model Horizontal Size (Inches) 39.2 Height (Inches) 29.2 Depth (Inches) 14.4 Weight (lbs.) 50.7 Power Requirement AC 120V, 60Hz Television System American TV Standard, NTSC, ATSC with STB Television Channels VHF: 2 - 13 UHF: 14 - 69 CATV: 1 - 125...
  • Page 5: Description Of Controls

    All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Function Status Indicators Lamp indicator, operation indicator, and temperature indicator located below the front panel controls, reveal the operating status of the LCD projection TV. Operation Indicator Temperature Indicator Lamp Indicator Power cord is not connected.
  • Page 6 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Rear Connections Panel Connecting cables and external equipment to your TV. Fan Cover Replace or clean the filter to prevent a dust every 1~3 months. When clean- ing or replacing the filter, certainly turn the power off.
  • Page 7 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Side Connection Panel There are four jacks on the left side on your projection TV that make connecting Audio/Video devices like video games and camcorders very simple. The jacks are like those found on the back jack connection panel.
  • Page 8 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode MODE Selects the remote operating mode: TV, VCR, Cable, DVD and Satellite. Select other oper- INDICATOR LIGHTS ating modes, for the remote to Show active remote mode control external devices.
  • Page 9 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode VCR CABLE DVD SAT MODE LIGHT POWER POWER Turns your TV or any other TV/VIDEO SIDE programmed equipment on or off, depending on mode. COMP1 COMP2 COMPONENT 1, 2...
  • Page 10 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS On-Screen Displays This page describes your on-screen display and information banner options. Channel Label If a channel label has been Main Channel Display set, then it will appear here. Displays current channel number. PIP Display TV 13 This display...
  • Page 11 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Front Panel Controls POWER MENU ENTER POWER MENU ENTER (Same as ENTER button on your remote control) VOLUME UP / DOWN CHANNEL UP / DOWN Operation indicator. See menu pages for instructions on using the Lamp indicator.
  • Page 12: Adjustment Instruction

    All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Application Object 4. NRS Adjustment This instruction is for the application to the LCD projection When the LCD panel load data on regular pixel using high speed TV(MB-042B Chassis). charge/discharge with sample & holder, the drain width of TFT gradually decreases and the non-resistance increases, and comes out regular noise on screen(shows vertical line by 12 pixel)
  • Page 13 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 6. Component 2 Offset Adjustment 7-3. Adjustment Sequence (1) Output the 255,255,255 signal of VDP Test Pattern, then dis- 6-1. Required Test Equipment play the maximum white pattern on screen. (2) Gamma Adjust Mode is display as below when select 4. Remote control for adjustment, 802F Gamma adjust by selecting ADJ key on R/C.
  • Page 14 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 8. Brightness Adjustment of Main/Sub Screen (1) Receive signal(RF 06Ch.) on the Main/Sub screen in the twin picture. (2) Confirms picture probably is the normal. (3) Check the “US06CH” with naked eyes in 06Ch. pattern and if there is difference, make the adjustment so that the field and the letters are distinguished.
  • Page 15: Printed Circuit Boards

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN(TOP) - 15 -...
  • Page 16 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN(BOTTOM) - 16 -...
  • Page 17 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD TUNER(TOP) - 17 -...
  • Page 18 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD TUNER(BOTTOM) - 18 -...
  • Page 19 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD DRIVER(TOP) - 19 -...
  • Page 20 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD DRIVER(BOTTOM) - 20 -...
  • Page 21 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD DIGITAL(TOP) - 21 -...
  • Page 22 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD DIGITAL(BOTTOM) - 22 -...
  • Page 23 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD SMPS AC INPUT - 23 -...
  • Page 24 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD CRM(TOP) CRM(BOTTOM) SIDE A/V - 24 -...
  • Page 25 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD CONTROL(TOP) CONTROL(BOTTOM) INTERFACE CASE DET PRE-AMP - 25 -...
  • Page 26: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM - 26 -...
  • Page 27 All manuals and user guides at all-guides.com NOTES - 27 -...
  • Page 28: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW - 28 -...
  • Page 29: Exploded View Parts List

    PCB ASSEMBLY,SUB CONT MB042A 80L CONTROL 6871VSME03D PCB ASSEMBLY,SUB MB042A 80L CASE DET 6871VSN220B PCB ASSEMBLY,SUB MB042A SIDE AV DN-44SZ80L 3500V00061J BOARD,AV RU-44SZ80L NB042A ZENITH 6871VSME82A PCB ASSEMBLY,SUB INTER MB042A DN-44SZ80L 6871VPMA47A PCB ASSEMBLY,POWER SMPS NB-042A RU-44SZ80L AC INPUT MI - 29 -...
  • Page 30: Replacement Parts List

    0IMI623200B M62320FP 16P IC502 0ITI740000Q SN74LVC00AD 14SOP R/TP LOGIC DTV IC1001 0ICTMMI057A M37151EFFP 42P MICOM IC503 0ICTMLG013A LGDT1901A LG IC 24P SSOP TRAY DPLL IC1002 0IKE704200J KIA7042AF SOT89 TP 4.2V IC504 0IMMRHY033A HY57V643220C(L)T6 86P 64M 0IAL242561B AT24C256W10SI2.7V 8P IC1003 IC600...
  • Page 31 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION CHIP 2SA1504S(ASY) KEC KDS184S CHIP 85V 300MA Q1208 0TR150400BA 0DD184009AA Q1209 0TR387500AA CHIP 2SC3875S(ALY) KEC D100 0DRSE00038A SDC15 TVS SOT23 12.8V Q1210 0TR150400BA CHIP 2SA1504S(ASY) KEC...
  • Page 32 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION ZENERS,MTZJ5.6B 0.01UF 1608 50V 10% ZD600 0DZ560009CF C1058 0CK103CK56A ZD601 0DZ560009CF ZENERS,MTZJ5.6B C1059 0CK103CK56A 0.01UF 1608 50V 10% ZD839 0DZ300009BB ZENERS,MTZJ30B C1060 0CK103CK56A...
  • Page 33 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 47UF MV 25V 20% 0.01UF 1608 50V 10% C1139 0CE476VH6DC C1191 0CK103CK56A C1140 0CK103CK56A 0.01UF 1608 50V 10% C1192 0CE476VH6DC 47UF MV 25V 20% C1141 0CK103CK56A...
  • Page 34 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 1UF 2012 16V 20% 4.7UF STD 50V 20% C1244 0CK105DF64A C223 0CE475DK618 C1246 0CE476SF6DC 47UF MVG 16V M C224 0CE476SF6DC 47UF MVG 16V M C1249 0CE476SF6DC...
  • Page 35 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 220UF STD 16V M 0CE227DF618 C820 181-001K CE 450V 220UF M LUG(105) C703 0CE107DD618 100UF STD 10V M C822 0CE476SF6DC 47UF MVG 16V M C705 0CE227DF618...
  • Page 36 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L100 6140VB0023A COIL,CHOKE SB7032751 GET 750UH AR1025 0RR0472C62A 47 OHM 1 / 16 W 1608 5.00% L1003 6140VB0003A COIL,CHOKE LQH31CN4R7M01L 4.7UH AR1026 0RR0472C62A 47 OHM 1 / 16 W 1608 5.00%...
  • Page 37 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 220 OHM 1/6 W 5.00% 10K OHM 1/6 W 5% 0RD2200F609 R875 0RD1002F609 0RD0102F609 10 OHM 1/6 W 5% R876 0RD1001F609 1K OHM 1/6 W 5% R722...
  • Page 38 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION FILTER,EMC NFL21SP207X1C3 FL133 6200J000012 “ 3828VA0465F MANUAL,OWNERS *LGECI FL134 6200J000012 FILTER,EMC NFL21SP207X1C3 6710V00102L REMOTE CONTROLLER FL135 6200J000012 FILTER,EMC NFL21SP207X1C3 FILTER,EMC NFL21SP207X1C3 FL136 6200J000012 FL139...
  • Page 39 All manuals and user guides at all-guides.com April, 2004 P/NO : 3828VD0183B 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,...
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