Sharp 27F640, Service Manual

Page 1: ...DIAGRAMS 15 PRINTED WIRING BOARD ASSEMBLIES 22 PARTS LIST 27 PACKING OF THE SET 35 CONTENTS SPEAKER SIZE 12 x 6 cm oval 2 pcs VOICE COIL IMPEDANCE 8 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 EIA Channel Plan U S A POWER INPUT 120V AC 60 Hz POWER RATING 130W PICTURE SIZE 2 193 5 cm2 339sq inc...

Page 2: ...e high voltage 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 re...

Page 3: ...artment covers or shields isolation resistor capacity networks 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 m...

Page 4: ... the MENU screens Press All the shaded operation buttons will light up At the same time the selected MODE button either CATV DVD or TV VCR will flash The LIGHT button on the Remote Control glows in the dark To use the glow in the dark display on the remote control place it under a fluorescent light or other lighting When the LIGHT button is pressed the shaded buttons above will light up Using the ...

Page 5: ...peration of the 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 ...

Page 6: ...tion in the video adjustment menu to ensure customer controls are in their proper reset position 2 Service number selection Once in the service mode press the Ch up or Ch down button on the remote controller or at the set The service adjustment number will vary in increments of one from V01 to M05 Select the item you wish to adjust 3 Data number selection Press the Vol up or Vol down button to adj...

Page 7: ...R CUT OFF COMPONENT 64 255 00h FFh 64 40h Component Input V47 G CUT OFF COMPONENT 64 255 00h FFh 64 40h Component Input V48 B CUT OFF COMPONENT 64 255 00h 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 Compone...

Page 8: ... 63 00h 3Fh 28 1Ch M05 SPECTRAL 0 63 00h 3Fh 23 17h D14 EW CORNER BOTTOM 19 81 13h 51h 50 32h Offset toward D13 32 D15 NOISE DET LEVEL 0 3 00h 03h 0 00h 00 D18 V CENTERING 0 63 00 3Fh 36 24h D19 V AGC 0 1 00h 01h 0 00h 00 D20 V POSITION VCOMP 0 7 00h 07h 0 00h 16 9 Format 00 D21 H POSITION VCOMP 0 31 00h 1Fh 15 0Fh 16 9 Format D22 V SIZE VCOMP 0 127 00h 7Fh 52 34h 16 9 Format D23 H SIZE VCOMP 0 63...

Page 9: ...ve a good local channel 2 Enter the service mode and select the service 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 comp...

Page 10: ... 2 5mm B AMP Base waveform in step TP47B LEVEL 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 on D01 2 Adjust D18 data value so that picture is centered SCREEN FORMAT 16 9 3 Input data of 00h on D20 4 Input data of D34 same as D18 data Horizo...

Page 11: ...490 20mVrms Separation 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 ...

Page 12: ...12 27F640 27F641 CHASSIS LAYOUT ...

Page 13: ...13 27F640 27F641 BLOCK DIAGRAM ...

Page 14: ...T CONDITIONS 1 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 MA...

Page 15: ...15 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SCHEMATIC DIAGRAM CRT Unit ...

Page 16: ...16 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SCHEMATIC DIAGRAM MAIN 1 Unit ...

Page 17: ...17 27F640 27F641 10 11 12 13 14 15 16 17 18 19 ...

Page 18: ...18 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SCHEMATIC DIAGRAM MAIN 2 Unit ...

Page 19: ...19 27F640 27F641 10 11 12 13 14 15 16 17 18 19 ...

Page 20: ...20 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SCHEMATIC DIAGRAM 3 LINE Y C Unit ...

Page 21: ...21 27F640 27F641 10 11 12 13 14 15 16 17 18 19 ...

Page 22: ...22 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J PRINTED WIRING BOARD ASSEMBLIES PWB A MAIN Unit Wiring Components Side ...

Page 23: ...23 27F640 27F641 10 11 12 13 14 15 16 17 18 19 ...

Page 24: ...24 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J PWB A MAIN Unit Components side ...

Page 25: ...25 27F640 27F641 10 11 12 13 14 15 16 17 18 19 ...

Page 26: ...26 27F640 27F641 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J PWB C 3 LINE Y C Unit Wiring Side PWB B CRT Unit Wiring Side PWB C 3 LINE Y C Unit Chip Parts Side ...

Page 27: ...218F E2 AB IC701 VHiTEA1533A 1 X TEA1533AP AE IC702 RH FXA003WJZZ X PC123Y82 AB çå IC703 VHiSE130N F X SE130N AD IC751 VHiPQ09RDA1 1 X PQ090RDA1SZ AD IC900 VHiCXA2089Q 2Y X CXA2089Q 6T AK IC1403 VHiPQ05RDA1 1 X PQ050RDA1SZ AD IC2001 RH iXA418WJZZQ X TMP88CS38BFG AN IC2040 VHiKiA7045A 1 X KIA7045AP AB IC2101 VHiBR24L16F 1Y X BR24L16F WE2 AC IC3001 VHiCXA2194Q 1Y X CXA2194Q T6 AP TRANSISTORS Q201 VS...

Page 28: ... X 0 1 16V Ceramic AA C438 VCKYCY1HB103KY X 0 01 50V Ceramic AA C439 VCEA0A1HW106M X 10 50V Electrolytic AB C440 VCFYFA1HA224J X 0 22 50V Mylar AB C451 VCQYTA2AA104K X 0 1 100V Mylar AB C452 VCEA0A1EW336M X 33 25V Electrolytic AB C471 VCKYCY1HB103KY X 0 01 50V Ceramic AA C473 VCCCCY1HH331JY X 330p 50V Ceramic AB C474 VCKYCY1HB103KY X 0 01 50V Ceramic AA D410 RH EX0611GEZZY X Zener Diode 5 1V AB D4...

Page 29: ...Y1HH101JY X 100p 50V Ceramic AA C3001 VCEA0A1HW475M X 4 7 50V Electrolytic AB C3002 VCKYCY1HB562KY X 5600p 50V Ceramic AA C3003 VCKYCY1EB123KY X 0 012 25V Ceramic AA C475 VCKYCY1CF104ZY X 0 1 16V Ceramic AA C476 VCKYCY1HB103KY X 0 01 50V Ceramic AA C501 VCKYPA2HB102K X 1000p 500V Ceramic AB C502 VCEA0A1VW477M X 470 35V Electrolytic AB C504 VCEACA1HC474M X 0 47 50V Electrolytic AB C505 VCEA0A1HW474...

Page 30: ...2J X 3 3k 2W Metal Oxide AB R625 VRD RA2BE102JY X 1k 1 8W Carbon AA å R627 VRN RL3ABR47J X 0 47 1W Metal Film AB å R628 VRN RL3ABR47J X 0 47 1W Metal Film AB çå R651 VRS RG2HC270J X 27 1 2W Metal Oxide AB C3004 VCEA0A1HW105M X 1 50V Electrolytic AB C3005 VCEA0A1HW475M X 4 7 50V Electrolytic AB C3006 VCEA0A1HW106M X 10 50V Electrolytic AB C3007 VCEA0A1HW475M X 4 7 50V Electrolytic AB C3008 VCKYCY1C...

Page 31: ... 16W Metal Oxide AA R2401 VRD RA2BE101JY X 100 1 8W Carbon AA R2402 VRD RA2BE101JY X 100 1 8W Carbon AA R2403 VRD RA2BE101JY X 100 1 8W Carbon AA R2404 VRD RA2BE101JY X 100 1 8W Carbon AA R2501 VRS CY1JF183JY X 18k 1 16W Metal Oxide AA çå R652 VRD RA2EE103GY X 10k 1 4W Carbon AA çå R653 VRD RA2EE562GY X 5 6k 1 4W Carbon AA å R658 VRS RG3DB183J X 18k 2W Metal Oxide AB R663 VRS CY1JF102JY X 1k 1 16W...

Page 32: ... X 2 7k 1 2W Metal Oxide AB R856 VRD RM2HD104JY X 100k 1 2W Carbon AA R857 VRD RM2HD104JY X 100k 1 2W Carbon AA R858 VRD RM2HD104JY X 100k 1 2W Carbon AA R861 VRD RM2HD104JY X 100k 1 2W Carbon AA R862 VRC MA2HG152KY X 1 5k 1 2W Solid AB R863 VRC MA2HG152KY X 1 5k 1 2W Solid AB R864 VRC MA2HG152KY X 1 5k 1 2W Solid AB R2502 VRS CY1JF183JY X 18k 1 16W Metal Oxide AA R2503 VRS CY1JF103JY X 10k 1 16W ...

Page 33: ...438 VRS CY1JF222JY X 2 2k 1 16W Metal Oxide AA R1456 VRS CY1JF564JY X 560k 1 16W Metal Oxide AA R1457 VRS CY1JF103JY X 10k 1 16W Metal Oxide AA R1458 VRD RA2BE103JY X 10k 1 8W Carbon AA R1459 VRS CY1JF821JY X 820 1 16W Metal Oxide AA R1466 VRS CY1JF103JY X 10k 1 16W Metal Oxide AA R1467 VRS CY1JF682JY X 6 8k 1 16W Metal Oxide AA R1473 VRS CY1JF102JY X 1k 1 16W Metal Oxide AA R1475 VRS CY1JF102JY X...

Page 34: ...Z X Operation Manual 27F641 1 1 CCABAA585WEH0 X Front Cabinet Ass y 27F640 1 1 CCABAA585WEH2 X Front Cabinet Ass y 27F641 1 1 Not Available 1 2 HBDGB3141CESA X SHARP Badge AD 1 3 GCOVAA282WJKA X LED RC Cover AC 1 4 GCOVHA017WJKZ X Cover AC 1 5 GDORFA027WJKC X Door 27F640 1 5 GDORFA027WJKD X Door 27F641 1 6 HiNDPA278WJSA X Indication Plate AC 1 7 MSPRPA012WJFW X Spring AB 1 8 JBTN A106WJKC X Button...

Page 35: ...ing Case MARK Not replacement items FRONT Buffer Material Polyethylene Sheet Polyethylene Bag Operation Manual Infrared R C Unit Batteries REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case ...

Page 36: ...d in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan TQ1702 S Jan 2004 Printed in Japan In Japan gedruckt MY DS Design and Production Information Design JAPAN Production SEMEX ...