Sharp 27SC260R, Service Manual

Page 1: ... oval 2 pcs VOICE COIL IMPEDANCE 16 ohm at 400 Hz ANTENNA INPUT IMPEDANCE VHF UHF 75 ohm Unbalanced TUNING RANGES VHF Channels 2 thru 13 UHF Channels 14 thru 69 CATV Channels 1 thru 125 POWER INPUT 120V AC 60 Hz POWER RATING 130W PICTURE SIZE 2 187 cm2 339sq inch CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS Hi Bi Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency...

Page 2: ... with a meter to be certain that the high voltage does not exceed the specified value and that it is regulating correctly 5 Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry 6 When trouble shooting and taking test measurements on a receiver with excessive high voltage avoid being unnecessarily close to the receiver Do not ...

Page 3: ...mechanical insulators etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such as electrical ...

Page 4: ...utton CHANNEL UP DOWN Selects next higher channel Selects next lower channel Moves the mark on the MENU screens Infrared Transmitter Window DISPLAY Press Displays receiving channel for 4 seconds Press again Removes display Temporarily displays receiving channel when in Closed Caption mode MENU Press Accesses MAIN MENU Press again Exits MAIN MENU Note The above shaded buttons on the Remote Control ...

Page 5: ...he horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode of picture tube ...

Page 6: ...ne from V01 to M05 Select the item you wish to adjust 3 Data number selection Press the Vol up or Vol down button to adjust the data number To enter the service mode and exit serv ice mode To enter the service mode manually just press and hold the Vol down and Ch up buttons at the same time plug the AC cord into a wall socket Now the TV set is switched on and enters the service mode To exit the se...

Page 7: ... B CUT OFF COMPONENT 64 255 40h FFh 64 40h Component Input V49 G R DRIVE COMPONENT 0 127 00h 7Fh 64 40h Component Input V50 B DRIVE COMPONENT 0 127 00h 7Fh 64 40h Component Input V51 SHARP COMPONENT 0 63 00h 3Fh 44 2Ch Component Input 2C V52 TINT S 0 127 00h 7Fh 62 3Eh S Terminal Input 3E V53 C TRAP 0 1 00h 01h 00 00h 00 V59 AUTO FRESH 0 1 00h 01h 00 00h 00 V60 SHARP P F 0 1 00h 01h 01 01h 01 V61 ...

Page 8: ...6 V S CORRECTION 0 15 00h 0Fh 12 0Ch 0C D07 EW PARABOLA 0 63 00h 3Fh 48 30h D08 EW TRAPEZIUM 0 63 00h 3Fh 36 24h D10 AFC GAIN 0 3 00h 03h 02 02h 02 D11 V EHT 0 7 00h 07h 06 06h 06 D12 H EHT 0 7 00h 07h 06 06h 06 D13 EW CORNER 0 31 00h 1Fh 08 08h 08 D14 EW CORNER BOTTOM 19 81 13h 51h 50 32h Offset toward D13 32 D15 NOISE DET LEVEL 0 3 00h 03h 00 00h 00 D18 V CENTERING 0 63 00 3Fh 36 24h D19 V AGC 0...

Page 9: ...e adjustment V03 and set to 00 minimum color Record original data code under adjustment V03 before changing V03 does not have to be adjusted if you selected a B W picture or monoscope pattern 3 Alternately adjust the service adjustment data of V09 and V10 until a good grey scale with normal whites is obtained RF Input 4 For component input the data value of V49 and V50 is adjusted to follow the da...

Page 10: ...ustment select data bus D05 and adjust to get the proper vertical linearity SCREEN FORMAT 16 9 5 Input data of D22 to mines 32 step from D03 data V SIZE 6 Input data of D24 same as D05 data V LIN Note Aging for 10 min before adjustment After the adjustment of V center and V size re adjustment for this V line Vertical Phase Adjustment SCREEN FORMAT 4 3 1 Enter the service mode and input data of 00h...

Page 11: ...aration Adjustment 1 Input SIGNAL 1 and vary the M04 bus data to get the minimun AC voltage to pin 39 of IC3001 2 Input SIGNAL 2 and vary the M05 bus data to get the minimun AC voltage to pin 39 of IC3001 SIGNAL 1 300Hz 30 modulation Lch only NR ON SIGNAL 2 3kHz 30 modulation Lch only NR ON Note SIGNAL 1 Adj for widebando SIGNAL 2 Adj for spectral Check the output of the speaker at the maximum vol...

Page 12: ...CHASSIS LAYOUT 12 27SC260R ...

Page 13: ...BLOCK DIAGRAM 13 27SC260R ...

Page 14: ... Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measured from point indicated to chassis ground WAVEFORMS å AND SHADED COMPONENTS SAFETY RELATED PARTS ç MARK X RAY RELAT...

Page 15: ...6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit A68AGA20X105 27SC260R 15 ...

Page 16: ...QPWBFD571WJN3 A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MAIN 1 Unit 27SC260R 16 ...

Page 17: ...17 16 19 18 15 14 13 12 11 10 27SC260R 17 ...

Page 18: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MAIN 1 Unit JA108WJ JA108WJ 27SC260R 18 ...

Page 19: ...17 16 19 18 15 14 13 12 11 10 JA108WJ JA108WJ 5P 5P 27SC260R 19 ...

Page 20: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 PWB D 2 LINE Y C Unit 20 27SC260R ...

Page 21: ...17 16 19 18 15 14 13 12 11 10 21 27SC260R ...

Page 22: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H PRINTED WIRING BOARD ASSEMBLIES PWB A MAIN Unit Wiring Components Side 22 27SC260R ...

Page 23: ...17 16 19 18 15 14 13 12 11 10 23 27SC260R ...

Page 24: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Components side 24 27SC260R ...

Page 25: ...17 16 19 18 15 14 13 12 11 10 25 27SC260R ...

Page 26: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H PWB D 2 LINE Y C Unit Wiring Side PWB B CRT Unit Wiring Side PWB D 2 LINE Y C Unit Chip Parts Side 26 27SC260R ...

Page 27: ...1102 VHIBA00BC0W 1S X BA00BC0WT V5 AF IC1103 VHINJ2584AM 1Y X NJ2584AM AG IC1104 VHIBA00BC0W 1S X BA00BC0WT V5 AF IC1403 VHIPQ05RDA1 1 X PQ050RDA1SZ AE IC2001 RH IXB644WJQ2Q X TMP88CS38BFG AR IC2040 VHIKIA7045A 1 X KIA7045AP AD IC2101 VHIBR24L16F 1Y X BR24L16F AE IC3001 VHICXA2194Q 1Y X CXA2194Q AS IC3002 VHIBA15218F2EY X BA15218F AD Q201 VS2SC2735 1EY X 2SC2735 AB Q361 VS2SB709AR 1Y X 2SB709AR AB...

Page 28: ...S EL Electrolytic M Poly Metalized Polypro Film Ref No Part No Description Code TH501 RH HZ0004GEZZ X Thermistor AD VA701 RH VXA009WJZZ X VARISTOR AC U PR701 RMPTP0092CEZZ X Packaged Circuit AF X801 RCRSAA010WJZZ X Crystal AD CF302 RFILC0449CEZZ X Filter AC CF401 RFILC0446CEZZ X Filter AC CF2040 RCRM 0003CEZZ X Ceramic Vibrator AD L201 VP XF1R2K0000Y X Peaking 1 2mH AA L203 VP XF100K0000Y X Peakin...

Page 29: ...ITORS EL Electrolytic M Poly Metalized Polypro Film Ref No Part No Description Code U C725 RC EZA064WJZZ X 220 160V EL AF C726 RC KZ0226CEZZ X 560p 2kV Ceramic AB C727 RC KZ0226CEZZ X 560p 2kV Ceramic AB C729 VCEA0A1HW106M X 10 50V EL AA C730 VCEA0A1VW108M X 1000 35V EL AD C731 RC EZ0385CEZZ X 1000 16V EL AD C732 VCKYPA2HB102K X 1000p 500V Ceramic AA C733 VCKYPA2HB102K X 1000p 500V Ceramic AA C734...

Page 30: ...X 4 7 50V EL AB C3011 VCEA0A1HW475M X 4 7 50V EL AA C3012 VCEA0A1HW475M X 4 7 50V EL AA Ref No Part No Description Code C3013 VCKYCY1HB272KY X 2700p 50V Ceramic AA C3014 VCKYCY1CB473KY X 0 047 16V Ceramic AA C3015 VCEACA1HC335K X 3 3 50V EL AC C3016 VCE9GA1HW475M X 4 7 50V EL AB C3017 VCEACA1CC106K X 10 16V EL AC C3018 VCEA0A1HW105M X 1 50V EL AA C3019 VCEA0A1HW475M X 4 7 50V EL AA C3020 VCEA0A1HW...

Page 31: ...S RG3DB332J X 3 3k 2W M Ox AB R625 VRD RA2BE102JY X 1k 1 8W Carbon AA R627 VRN RL3ABR47J X 0 5 1W M Film AB U R628 VRN RL3ABR47J X 0 5 1W M Film AB S U R651 VRS RG2HC270J X 27 1 2W M Ox AA S U R652 VRD RA2EE103GY X 10k 1 4W Carbon AA S U R653 VRD RA2EE562GY X 5 6k 1 4W Carbon AA RX1 VRD RA2BE273JY X 27k 1 8W Carbon AA S U R663 VRS CY1JF102JY X 1k 1 16W M Ox AA R670 VRS CY1JF000JY X 00 1 16W M Ox A...

Page 32: ...scription Code R968 VRS CY1JF102JY X 1k 1 16W M Ox AA R969 VRS CY1JF472FY X 4 7k 1 16W M Ox AA R970 VRD RA2BE6R8JY X 6 8 1 8W Carbon AA R971 VRS CY1JF101JY X 100 1 16W M Ox AA R972 VRS CY1JF101JY X 100 1 16W M Ox AA R973 VRS CY1JF000JY X 00 1 16W M Ox AA R974 VRS CY1JF103JY X 10k 1 16W M Ox AA R975 VRS CY1JF333JY X 33k 1 16W M Ox AA R982 VRS CY1JF750JY X 75 1 16W M Ox AA R983 VRS CY1JF473JY X 47k ...

Page 33: ... 1k 1 16W M Ox AA R3024 VRD RA2BE102JY X 1k 1 8W Carbon AA R3027 VRS CY1JF000JY X 00 1 16W M Ox AA R3029 VRS CY1JF153JY X 15k 1 16W M Ox AA R3030 VRS CY1JF473JY X 47k 1 16W M Ox AA R3031 VRS CY1JF474JY X 470k 1 16W M Ox AA R3032 VRS CY1JF102JY X 1k 1 16W M Ox AA Ref No Part No Description Code R3033 VRS CY1JF474JY X 470k 1 16W M Ox AA R3034 VRS CY1JF000JY X 00 1 16W M Ox AA R3035 VRS CY1JF102JY X ...

Page 34: ...E331GY X 330 1 8W Carbon AA R894 VRD RA2BE152JY X 1 5k 1 8W Carbon AA R895 VRD RA2EE561JY X 560 25W Carbon AA PWB B DUNTKB568WEV0 CRT UNIT Ref No Part No Description Code R899 VRD RA2BE222JY X 2 2k 1 8W Carbon AA P860 QPLGN0441CEZZ X Plug 4Pin RAV AB P880 QPLGN0641CEZZ X Plug 6 Pins AB SC850 QSOCV0937CEZZ X CRT Socket AE IC1401 VHITC90A45F 1Y X TC90A45AF AM Q1401 VS2SD601AR 1Y X 2SD601AR AB Q1402 ...

Page 35: ... AA RRMCGA450WJSA X Infrared Remote Control Unit AM TINS C268WJZZ X Operation Manual AF TGAN A216WJN1 X warranty card AC Ref No Part No Description Code SPAKCC440WJN1 X Packing Case AX SPAKP0109GJZZ X Wrapping Sheet AF SPAKX0134GJZZ X Packing Foam AS SSAKA0101GJZZ X Plastic Bag AC 1 CCABAB574WEH0 X Front Cabinet Assembly BK 1 1 Not Available Front Cabinet 1 2 HBDGB1009MESB X BADGE SHARP PLASTIC AD...

Page 36: ...NG OF THE SET FRONT Packing Foam Packing Case REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case Polyethylene Bag Polyethylene Mat ACCESSORIES 36 27SC260R ...

Page 37: ...37 27SC260R ...

Page 38: ... photocopying recording or otherwise without prior written permission of the publisher ALL RIGHTS RESERVED Design and Production Information Design base SEM Production SEMEX Modify SEMEX SHARP ELECTRONICA MEXICO S A DE C V Quality Reliability Control Center Blvd SHARP No 3510 Parque Industrial Rosarito Playas de Rosarito México B C 22710 QRC0030 U November 2006 J B 27SC260R ...