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Related Manuals for LG RT-44SZ80LB
Summary of Contents for LG RT-44SZ80LB
- Page 1 website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD Projection TV SERVICE MANUAL CHASSIS : MB-042C MODEL : RT-44/52SZ80LB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. TV/AV MENU...
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Page 2: Table Of Contents
CONTENTS CONTENTS ........................2 SAFETY PRECAUTIONS ....................3 SERVICING PRECAUTIONS ..................4 CONTROL DESCRIPTIONS ....................6 SPECIFICATIONS ......................10 ADJUSTMENT INSTRUCTIONS ..................14 BLOCK DIAGRAM......................19 PRINTED CIRCUIT BOARD ...................21 EXPLODED VIEW ....................32,34 EXPLODED VIEW PARTS LIST ................33,35 REPLACEMENT PARTS LIST ..................36 SVC. SHEET ........................- 2 -... -
Page 3: Safety Precautions
SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. -
Page 4: Servicing Precautions
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service transistors and semiconductor "chip" components. The manual and its supplements and addenda, read and follow the following techniques should be used to help reduce the SAFETY PRECAUTIONS on page 3 of this publication. incidence of component damage caused by static by static NOTE: If unforeseen circumstances create conflict between the electricity. - Page 5 c. Quickly move the soldering iron tip to the junction of the Fuse and Conventional Resistor component lead and the printed circuit foil, and hold it Removal/Replacement there only until the solder flows onto and around both the 1. Clip each fuse or resistor lead at top of the circuit board component lead and the foil.
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Page 6: Control Descriptions
CONTROL DESCRIPTIONS All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set. Remote control handset POWER Before you use the remote control handset, please install the bat- teries. - Page 7 19. VCR BUTTONS control a LG video cassette recorder. Note : In teletext mode, the PR + / -, SWAP and INPUT buttons are used for teletext function. Battery installation The remote control handset is powered by two AAA type batteries.
- Page 8 Front panel Lamp indicator, operation indicator, and temperature indicator, located below the front panel con- trols reveal the operating status of the LCD projection TV. ON/OFF TV/AV MENU TV/AV MENU 1. REMOTE CONTROL SENSOR 7. OPERATION INDICATOR (Refer to p.7) 2.
- Page 9 Rear panel AV3 INPUT AUDIO SOCKET (L)/ MONO VIDEO S-VIDEO S-VIDEO INPUT COMPONENT RGB INPUT AUDIO INPUT 1 INPUT 2 PC/DTV (L)/ (576i/480i (576i/480i MONO 576p/480p 576p/480p (XGA/ VIDEO 576p/ 720p/ 720p/ 480p/ UPGRADE PORT 1080i) 1080i) 720p/ S-VIDEO 1080i) SOCKET RGB/DVI INPUT AV 3...
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Page 10: Specifications
SPECIFICATIONS NOTE : Specifications and others are subject to change without notice for improvement. Scope This specification can be applied to the LCD Projection(RT-44SZ80LB) Test and Inspection Method 1) performance:Follow the Standard of LG TV test 2) Standards of Extra requirement... - Page 11 Feature and Function Specification Item Remark Unit REMOCON NEC Code analog RGB(separate) RGB Input D-Sub 15 pin digital RGB DVI Input DVI-D RGB Audio(L,R) Input Center Speaker Mode Input L, R Component Audio(L,R) Input Component Input (1 side / 2 rear) AV Input (1 side / 1 rear) S-Video Input...
- Page 12 Power Specification Item Remark Unit Power ON/OFF operation 10000 times Normal 220V Staring Voltage Normal 220V Staring Voltage, -10 Degree DC Voltage, Ballast DC Voltage, 5V, stand-by DC Voltage, Digital/ DLP Board 3.3V 3.125 3.465 DC Voltage, Digital/ DLP Board 2.5V 2.375 2.625 DC Voltage, Digital/ DLP Board 5V...
- Page 13 Component Video Input (Y, P Specification Proposed Resolution H-freq(kHz) V-freq(Hz) Pixel clock SDTV, DVD 480I 640x480 15.75 59.94 SDTV, DVD 480I 640x480 15.73 59.94 EDTV 480P 31.47 704x480 SDTV, DVD 576I 15.625 720x576 EDRV 576P 720x576 31.250 60.00 HDTV 720P (60Hz) 1280x720 45.00 HDTV 720P (50Hz)
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Page 14: Adjustment Instructions
ADJUSTMENT INSTRUCTIONS 1. Application Object 4. LCD adjustment This instruction is for the application to the LCD Projection 4-1. NRS adjustment When the LCD panel load data on regular pixel using high 2. Notes speed change/dischange with sample & holder, the drain (1) The power source insulation of this LCD Projection is not width of TFT gradually decreases and the non-resistance charging type and you may not use the transformer for... - Page 15 Optical measuring equipment Adjustment Connector for RS-232C Adjustment Cable PC Pattern Generator <Fig2-2. TV set status Adjustment> Fig2 Device Configuration Diagram < > (3)Preparation for Adjustment 1) Connect the PC PATTERN GENERATOR, circuit for <Fig3. Adjustment for H/V Position on Screen> adjustment and adjustment JIG as shown <Fig 2>.
- Page 16 5) Output the 16 Gray Pattern in PC Pattern Generator. (2) Equipment composition : Follow <Fig2> Check it with the naked eye whether Screen Gamma nad Adjust at same condition of equipment composition diagram. W/B is right about each Gray. If itÕs not, press the ADJ button on Remote Control and (3) Preparation for Adjustment then adjust the level data of each step manually in sub...
- Page 17 H Coefficient(KHH, KHL) 17. GL1H : Upper 9bit of MID2 brightness correction --> Calculation method (CEHP-CSHP=1280, Horizontal coefficient in G MIN. segment value =16) --- Change according to GMIN and GMID2 value. 18. GL1L : Lower 9bit of MID2 brightness correction coefficient H coefficient = 1/(number of pixel intervals between setting in the horizontal in G MIN.
- Page 18 (4) Adjustment Sequence 2). Input the code(Product Code), production week/year, 1) Adjust the screen coordinates as shown below. Serial number(If it is not input write Ò01Ó) to the S/W for writing DDC. 0 1 2 3 ....xx..15 16 3. Operate EDID Write command. 10.
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Page 19: Block Diagram
RT- 44SZ80L P VALID Reset EPLD1 HD- II Dat a[ 0: 7] , [ MUX, VCXO 3- st at e] SDRAM CLK Syn. TP[ 0: 7] , SDRAM IF ( 6M) Slim VSB 27Mhz ATSC/ NTSC ( HY57V643220C) ( LGDPLL) TP_CLK, ( HY57V643220C) SEL_VSB/ 1394,... - Page 20 17. 5 V PW21 15. 5 V 0. 7 inc h LCD Panel ES117 R/ G/ B SIGNAL, Tim ing SAMPLE & R/ G/ B 15. 5 V Pro c essing ( 10b it * 3) HOLDER ( 8b it * 3) LVDS SAMPLE &...
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Page 21: Printed Circuit Board
PRINTED CIRCUIT BOARD MAIN (TOP) - 21 -... - Page 22 MAIN (BOTTOM) - 22 -...
- Page 23 TUNER (TOP) - 23 -...
- Page 24 TUNER (BOTTOM) - 24 -...
- Page 25 DRIVER (TOP) CONTROL (TOP) - 25 -...
- Page 26 DRIVER (BOTTOM) CONTROL (BOTTOM) - 26 -...
- Page 27 DIGITAL (TOP) - 27 -...
- Page 28 DIGITAL (BOTTOM) - 28 -...
- Page 29 AC INPUT CASE DET - 29 -...
- Page 30 CRM (TOP) CRM (BOTTOM) - 30 -...
- Page 31 TXT (BOTTOM) TXT (TOP) SIDE A/V INTERFACE - 31 -...
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Page 32: Exploded View
EXPLODED VIEW ( 44Ó ) - 32 -... -
Page 33: Exploded View Parts List
SPEAKER,, WOOFER C080P23K1450 ESTEC WOOFER 8OHM 15/25W 84DB 80 NON 6400DESA01A SPEAKER,, TWEETER D016D01K1450 ESTEC TWEETER(DOME) 8HMOHM 15/25W 85DB 50 NON 174-222N POWER CORD, 219B . SAA L=3000MM HOUSING BL, RT-44SZ80LB.AHRLKG 174-322E POWER CORD, POWER W/FILTER L=400(179B), RT-44SZ80LB.AFRLKU 3090V00556A CABINET, DN-44SZ80L LCD PJT FRONT... - Page 34 EXPLODED VIEW ( 52Ó ) - 34 -...
- Page 35 3210V00165B FRAME, FRAME ABS, AF-303S RN-48SZ40H MAIN CHASSIS 4811V00125A BRACKET ASSEMBLY, REAR AV RT-44SZ40LB MB042C BOARD TERMINAL 6871VMMR46D PWB(PCB) ASSEMBLY, MAIN MAIN MB-042C RT-44SZ80LB 6871VPMA46B PWB(PCB) ASSEMBLY, POWER SMPS MB042C RT-44SZ80LP MI 6871VSME89A PWB(PCB) ASSEMBLY, SUB TUNER MB042C RT-44SZ80L 6871VSMX04D...
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Page 36: Replacement Parts List
M37151EFFP SSOP 42PIN TRAY 80L IC502 0ITI740000Q SN74LVC00AD 14SOP R/TP LOGIC D-TV 0IMI623200B M62320FP 16P SOP TP CN-29Q3 IC1001 IC503 0ICTMLG013A LGDT1901A LG IC 24P SSOP TRAY DPLL 0IKE704200J KIA7042AF SOT-89 TP 4.2V IC1002 IC504 0IMMRHY033A HY57V643220C IC1003 0IAL242561B AT24C256W-10SI-2.7V 8P ST 2.7V-5V... - Page 37 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q1208 0TR150400BA CHIP 2SA1504S(ASY) KEC DIODE CHIP 2SC3875S(ALY) KEC Q1209 0TR387500AA 0TR150400BA CHIP 2SA1504S(ASY) KEC 0DD226239AA CHIP KDS226 SOT-23 Q1210 Q1211 0TR387500AA CHIP 2SC3875S(ALY) KEC 0DD226239AA CHIP KDS226 SOT-23 Q1213 0TR387500AA CHIP 2SC3875S(ALY) KEC D100...
- Page 38 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 39 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 40 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 41 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 42 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
- Page 43 R815 0RN5103G409 SW01 140-275E R816 0RN5103G409 510K OHM 1/4 W 1% TA52 140-313B TACTTACT 2LEAD 160G(TA) LG C&D NON R817 0RN5103G409 510K OHM 1/4 W 1% TA52 140-313B TACTTACT 2LEAD 160G(TA) LG C&D NON R818 0RD2202F609 22K OHM 1/6 W 5% TA52 140-313B TACTTACT 2LEAD 160G(TA) LG C&D NON...
- Page 44 MANUAL, OWNERS FR/EN/AR FL303 6200C000010 H354LAI-K5202 R/TP RN-49NZ10HA 6710V00100E REMOTE CONTROLLER RT-52SZ30RP H354LAI-K5202 R/TP RN-49NZ10HA FL304 6200C000010 6710V00136G REMOTE CONTROLLER RT-44SZ80LB 6200JB8012T SQE2828 NAMYANG BK 17.2MH 60TURNS L801 6851V00018G CABLE, DVI UL20276 AWG30 500MM L802 6200JB8012T SQE2828 NAMYANG BK 17.2MH 60TURNS MISCELLANEOUS...
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Page 45: Svc. Sheet
SVC. SHEET : 3854V A0155A-S1 3854V A0155A-S2... - Page 46 P/N : 3854VA0155A - S1( 1/2 ) 2004.05.21...
- Page 47 P/N : 3854VA0155A - S1( 2/2 ) 2004.05.21...
- Page 48 P/N : 3854VA0155A - S2( 1/2 ) 2004.05.21...
- Page 49 P/N : 3854VA0155A - S2( 2/2 ) 2004.05.21...
- Page 50 SVC. SHEET : 3854V A0155A-S1 3854V A0155A-S2...
- Page 51 July, 2004 P/NO : 3828VD0180A Printed in Korea...