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Summary of Contents for LG Lafinion 55
- Page 1 COLOR TV SERVICE MANUAL CHASSIS : SC-023A MODEL : RP-21FB70 Lafinion 55 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ...................................3 ADJUSTMENT INSTRUCTIONS ................................4 EXPLODED VIEW ....................................8,10 EXPLODED VIEW PARTS LIST ................................9,11 REPLACEMENT PARTS LIST ..................................12 SCHEMATIC DIAGRAM ....................................COMPONENT LOCATION GUIDE .........................Back of Circuit Diagram PRINTED CIRCUIT BOARD............................Back of Circuit Diagram BLOCK DIAGRAM ..............................Back of Circuit Diagram SPECIFICATIONS POWER INPUT ............................... -
Page 3: Safety Precautions
SAFETY PRECAUTIONS 1. Before returning an instrument to the customer, always make a safety they are serviced. (X-radiation protection circuits also may be called check of the entire instrument, including, but not limited to, the "horizontal disable" or "hold-down.") Read and apply the high voltage following items: limits and, if the chassis is so equipped, the X-radiation protection circuit a. -
Page 4: Adjustment Instructions
ADJUSTMENT INSTRUCTION 1. Application Object 5. Purity and Convergence Adjustment These instructions are applied to SC-023A chassis. 5.1 Purity Adjustment (1) Preliminary steps 1. Receive Red Raster Pattern. 2. Notes 2. Degauss CPT and Cabinet with degaussing coil. (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. - Page 5 6. Rotate the 6-Pole magnets keeping the angle between 5. Repeat 1 ~ 4 until the color coordinates in High and two 6-Pole magnets until horizontal Red and Blue lines Low color satisfies the Table. are unified. 6. Check the adjusted color coordinates with the white balance meter.
- Page 6 10. Deflection Data Adjustment 10.1 Preliminary Steps (2) Vertical Position Adjustment (1) Set the Deflection data with the SVC Remote control. Select SUB 2(V-POS) and adjust until the mechanical (2) Enter into Deflection adjustment mode by “INSTART” center point and the center of screen unite. button.
- Page 7 11.2 14/20/21¡ ¡ – – Normal Model Menu Adjustment Range Initial setting Remark S - 0 RF AGC AAGC Voltage Adj. 0 ~ 63 Necessary S - 1 H POSIT Horizontal Postilion 0 ~ 31 Necessary S - 2 V-POS Vertical Position 0 ~ 7 Necessary...
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Page 8: Exploded View
EXPLODED VIEW(RP-21FB70) - 8 -... -
Page 9: Exploded View Parts List
EXPLODED VIEW PARTS LIST Part No. Description 2426GDB30CA CPT SET,A51QDJ279X(PB) 00Q7NP FREE,BARE 120-C77M SPEAKER,FULLRANGE C122P02K1459 ESTEC 8 OHM 10/15W 130DB 4810V00088A BRACKET,SPEAKER CE-29K30 NON PP NONE 6140VC2001M COIL,DEGAUSSING 50TURN 11OHM MC019A 21 CU 6150Z-1223A DY,DC21SPFL3 21FCD PIN FREE 170-A01N CPT EARTH,21 64T 2LUG 1P HSG CL-21Q20ET(PC-99DA) 174-019N POWER CORD,POWER(W/HOLDER,HOUSING L=200) 3091V00627D... - Page 10 EXPLODED VIEW(Lafinion 55) - 10 -...
- Page 11 EXPLODED VIEW PARTS LIST Description Part No. 2426GDB30CA CPT SET,A51QDJ279X(PB) 00Q7NP FREE,BARE 6341V21010A BARE CPT ASSEMBLY *LGETT 6400VA0025C SPEAKER,FULLRANGE C163P03K1450 8OHM 15/20W 6140VC2001M COIL,DEGAUSSING 50TURN 11OHM MC019A 21 CU 6150Z-1223A DY,DC21SPFL3 21FCD PIN FREE 170-A01N CPT EARTH,21 64T 2LUG 1P HSG CL-21Q20ET(PC-99DA) 174-019V POWER CORD,UL L=250 W/HOLD,HOUSING POWER(W/HOLD,HOUSING) 6410VTH002B...
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Page 12: Replacement Parts List
LTV817MVB 4P,DIP BK PHOTO COUPLER IC802 LD1301 0DL100000AE LED,SA5711(DL1LO) BK AMBER IC803 0ISK665413C STRF6654R(LF1352) 5 SIP BK STR “ 0DD000000BA SA5711B *Lafinion 55 IC804 0ISS781200H KA78R12 4P,TO220F BK LOW DROP 12V 0DZ510009BF ZENERS,GDZ5.1B ZD102 IC805 0ISK110000A SE110N(LF12) 3P 110V ERROR AMP... - Page 13 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
- Page 14 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
- Page 15 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
- Page 16 100 OHM 1/6 W 5% R906 0RD1000F609 6710V00090N REMOTE CONTROLLER,SC023A W/EYE 0RD1801F609 1.8K OHM 1/6 W 5.00% R908 “ 6710V00126M REMOTE CONTROLLER,SC023A EYE *Lafinion 55 R912 0RS2002K607 20K OHM 2 W 5.00% “ 6710V00126W REMOTE CONTROLLER,SC023A *LGETT R913 0RD0392F609 39 OHM 1/6 W 5.00%...
- Page 17 Jan., 2004 P/NO : 3828VD0137R Printed in Korea...
- Page 18 L901 ..A1 Q902 ..B1 R202..B1 R410..E4 R669..B3 T402 ..F5 C224 ..C2 C605..B2 C810 ..G3 D816..E2 G6...F1 IC602..B4 J302 ..E4 J661 ..C2 L902 ..B1 Q903 ..A2 R203 ..C1 R411..E4 R671..B4 T403..G3 BLOCK DIAGRAM SIDE A/V(21FB70) CONTROL(21FB70) CONTROL(Lafinion 55) SIDE A/V(Lafinion 55) POWER...
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