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LC-15B2EA

SERVICE MANUAL

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.

MODEL

LC-15B2EA

CONTENTS

IMPORTANT SERVICE SAFETY

PRECAUTION .................................................... 2

SPECIFICATIONS ............................................. 3

OPERATION MANUAL ...................................... 4

DIMENSIONS .................................................... 5

REMOVING OF MAJOR PARTS ....................... 6

ADJUSTING PROCEDURE OF

EACH SECTION ................................................ 9

TROUBLE SHOOTING TABLE ........................ 12

CHASSIS LAYOUT .......................................... 18

BLOCK DIAGRAM ........................................... 20

OVERALL WIRING DIAGRAM ........................ 22

DESCRIPTION OF SCHEMATIC DIAGRAM .. 24

SCHEMATIC DIAGRAM

RC/LED and OPERATION UNIT ............... 25

Page

MAIN UNIT ................................................ 26

TUNER UNIT ............................................. 38

INVERTER UNIT ....................................... 46

PRINTED WIRING BOARD ASSEMBLIES ..... 47

PARTS LIST

ELECTRICAL PARTS ................................ 51

MAIN UNIT ................................................ 51

TUNER UNIT ............................................. 55

INVERTER UNIT ....................................... 59

RC/LED UNIT ............................................ 60

OPERATION UNIT ..................................... 60

CABINET AND MECHANICAL PARTS ..... 60

ACCESSORIES PARTS ............................ 62

PACKING PARTS ....................................... 62

PACKING OF THE SET ................................... 63

SHARP CORPORATION

LCD COLOUR TELEVISION

S42H2LC15B2EA

Содержание LC-15B2EA

Страница 1: ... PROCEDURE OF EACH SECTION 9 TROUBLE SHOOTING TABLE 12 CHASSIS LAYOUT 18 BLOCK DIAGRAM 20 OVERALL WIRING DIAGRAM 22 DESCRIPTION OF SCHEMATIC DIAGRAM 24 SCHEMATIC DIAGRAM Ë RC LED and OPERATION UNIT 25 Page Page Ë MAIN UNIT 26 Ë TUNER UNIT 38 Ë INVERTER UNIT 46 PRINTED WIRING BOARD ASSEMBLIES 47 PARTS LIST Ë ELECTRICAL PARTS 51 Ë MAIN UNIT 51 Ë TUNER UNIT 55 Ë INVERTER UNIT 59 Ë RC LED UNIT 60 Ë OP...

Страница 2: ...rvicing TO EXPOSED METAL PARTS CONNECT TO KNOWN EARTH GROUND Use an AC voltmeter having with 5000 ohm per volt or higher sensitivity or measure the AC voltage drop across the resisor Connect the resistor connection to all exposed metal parts having a return to the chassis antenna metal cabinet screw heads knobs and control shafts escutcheon etc and measure the AC voltage drop across the resistor A...

Страница 3: ...tness 430 cd m2 Lamp life 60 000 hours Viewing angles H 170 V 170 Audio amplifier 2 1 W 2 Speakers 4 7 cm Oval 2 pcs Terminals AV IN 1 RGB AV IN 2 S VIDEO VIDEO AUDIO OUT AUDIO Antenna DIN Headphones 3 5 mm ø jack Rear OSD language English German French Spanish Italian Swedish Dutch Power requirement DC 12 V AC 110 V 240 V 50 60 Hz Weight 5 2 kg incl stand excl accessories Accessories Operation Ma...

Страница 4: ...ched most comfortably Note Main unit front view Terminals L R AUDIO OUT L R AUDIO OUT RGB AV IN 1 S VIDEO VIDEO POWER INPUT DC12V L R AUDIO AV IN 2 Antenna AUDIO OUT L AUDIO OUT R Headphones RGB AV IN 1 S VIDEO VIDEO POWER INPUT DC12V L R AUDIO AV IN 2 POWER INPUT DC12V AV IN 1 21 pin Euro SCART S VIDEO VIDEO AUDIO L AUDIO R AV IN 2 Rear view Carrying handle E T CH TV VIDEO TEXT REVEAL HOLD END M ...

Страница 5: ...Dimensions Unit mm CH 61 1 56 5 MENU TV VIDEO 149 5 78 7 303 381 7 1 229 305 3 301 6 484 98 8 61 1 149 5 198 48 5 27 366 2 1 AV IN 1 RGB AV IN 2 S VIDEO VIDEO L R AUDIO POWER INPUT DC12V 100 11 8 100 L R AUDIO OUT ...

Страница 6: ...ach PWB L R AUDIO OUT RGB AV IN 1 S VIDEO VIDEO POWER INPUT DC12V L R AUDIO AV IN 2 3 Front cabinet Rear cabinet Table stand Terminal cover S Terminal cover L 3 2 1 1 3 3 4 2 4 1 4 7 4 6 4 5 4 4 4 3 4 8 3 5 5 5 5 5 5 5 4 5 5 5 5 5 5 OPERATION PWB Tape MAIN PWB TUNER PWB INVERTER PWB LED PWB P4004 P6500 P6502 P3603 P6501 SC1203 SC1201 SC901 SC1202 SC3100 P2003 SC2002 SC1602 P1903 P3702 P3302 P3301 ...

Страница 7: ...frame cover 10 Remove the TUNER PWB fixing screws 4 pcs 11 Remove the LED PWB fixing screws 2pcs 12 Remove the OPERATION PWB fixing screws 2 pcs 13 Remove the chassis frame fixing screws 2 pcs 14 Remove the LCD panel unit fixing screws 2 pcs INVERTER PWB TUNER PWB 6 MAIN PWB LCD Panel unit 7 Chassis frame cover OPERATION PWB Chassis frame 11 LED PWB 13 9 8 10 13 14 12 ...

Страница 8: ...s and reflection deflection sheet 17 Detach the four reflection mirrors 18 Remove the fluorescent lamp 19 Detach the lamp guide plate 20 Detach the two lamp reflection sheets Reflection Mirror Reflection Mirror Lamp Reflection Sheet 1 PSHEP0284CEZZ Light Guide Plate PGiDM0070CEZZ Backlight Lamp KLMP 0122CEZZ Lamp Reflection Sheet 2 PSHEP0285CEZZ Diffusion Sheet PSHEP0283CEZZ Reflection deflection ...

Страница 9: ...ments The adjustment is performed for each item by the MENU Menu cursor CH ù Ù or VOL keys LCD TV set and remote control Adjustment item is chosen with the Menu cursor upward downward keys The adjustment item makes a toggle operation with the MENU key input Next item If the MENU key is input while the bottom item is selected it moves to the top item on the next page Press the auto preset button on...

Страница 10: ...olour bar signal 2 See if the Y reading on page 2 of the adjusment process mode is somewhere following If not make the PAL TAMP adjustment to get the Y reading in the range of BF thru C9 3 If the adjustment of PAL TAMP is executed write its adjustment value to the SECAM TAMP manually Screen of the page 2 of the adjustment processing menu OSD 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...

Страница 11: ...e situation 1 happens 5 times sequentially television can not be turned ON The power LED remains red 7 2 Countermeasures 7 2 1 Check when turning OFF the lamp error detection When television is turned OFF by the lamp error detection mentioned above it enters the adjustment process with the power LED red Entering the adjustment process turns OFF the error detection and turns ON TV This enables the ...

Страница 12: ...701 Replace F1 and F2 Check S4701 and connection cable Is T3701 s primary oscillator waveform normal Check T3701 s secondary load Yes Yes No No No No Yes Check J3702 periphery and connection cable Yes Back light lamp failure to light up Replace F6500 and F6501 Is the pin 34 of IC1201 in the H state Is the primary side of T6500 T6503 periphery short circuiting Replace the back light lamp with new o...

Страница 13: ...cture at all Is in output of IC402 normal Is input at pin 73 of IC801 normal Yes No No No TV and S Video output Is voltages at pins 6 7 and 18 tuner normal Is output at pin 13 of tuner normal Check the power line Check tuner and its peripheral parts Is input at pin 3 of IC402 normal Is the pins 2 and 4 of IC402 at H and L state Yes Yes No No No No No Yes No TV output Is the pins 65 and 66 of IC200...

Страница 14: ...ormal No No S VIDEO output Check IC1203 and its peripheral parts No No Yes Yes Yes No TELETEXT output Yes Is input at pins 2 5 11 and 14 of IC1203 normal Is input at pins 3 4 and 5 of SC1602 normal Is output at pins 1 and 7 of IC1619 and pin 1 of IC1620 normal No Check connection cable Check the R G and B line No Check IC1619 IC1620 and their peripheral parts Is output at pins 57 59 of IC1601 norm...

Страница 15: ... output of SPIO and SPOI normal No No picture image inversion No Gradation defect Is output of U D normal Yes No Check R1202 and its peripheral parts Check R1209 and its peripheral parts Check IC1206 IC1207 Q1201 and their peripheral Check R1203 and its peripheral parts Check R1204 and its peripheral parts Is output V0 V7 V17 V21 V32 V64 V112 V176 V235 and V255 normal Check IC1106 IC1107 IC1108 IC...

Страница 16: ... normal Yes Yes No No No Yes Muting effect is on Check the HP_MUTE line Check IC1901 and its peripheral parts Check IC304 and its peripheral parts No sound from headphone TV sound failure Is output at pins 33 and 34 of IC1901 normal Is output at pins 1 and 7 of IC3500 normal Check IC1901 and its peripheral parts Check IC3500 and its peripheral parts Yes No No No No sound from output line Check the...

Страница 17: ... sound failure Yes No Check IC1901 and its peripheral parts Is output at pins 36 and 37 of IC1901 normal Check IC1902 and its peripheral parts Is output at pins 1 and 7 of IC1902 normal Check their lines and their peripheral parts Is input at pins 53 and 54 of IC1901 normal Check IC1901 and its peripheral parts Is output at pins 27 and 28 of IC1901 normal ...

Страница 18: ...19 LC 15B2EA 18 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT MAIN PWB RC LED PWB OPERATION PWB INVERTER PWB TUNER PWB ...

Страница 19: ...SC1202 SC1203 LCD PANEL V0 V7 V17 V21 V32 V64 V112 V176 V235 V255 R0 7 G0 7 B0 7 P3601 BACK LIGHT LAMP GRADATION POWER IC1102 1108 IC1110 IC1112 1115 COMMON DRIVE VGLCOM VCOM CSCOM IC1109 DAC IC1101 1111 LAMP ERROR DETECTOR Q3600 3601 L_ERR HV1 2 3 V2_V R G B_IN VPC IC801 V1 SC V1IN V2V0 SYNC SEP IC401 CSYNC UART MICON IC2001 IC2030 Y UV SYNC SIGNAL CONTROL SIGNAL IC2004 LCD CONTROLLER IC1201 REV ...

Страница 20: ...23 LC 15B2EA 22 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H OVERALL WIRING DIAGRAM ...

Страница 21: ...istors are Carbon type unless otherwise noted C Solid W Cement S Oxide Film T Special N Metal Coating CAPACITOR 1 All capacitors are µF unless otherwise noted P pF µµF 2 All capacitors are 50V unless otherwise noted 3 All capacitors are Ceramic type unless otherwise noted ML Mylar TA Tantalum PF Polypro Film ST Styrol CAUTION This circuit diagram is original one therefore there may be a slight dif...

Страница 22: ...25 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM Ë RC LED and OPERATION Unit ...

Страница 23: ...27 LC 15B2EA 26 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 1 6 ...

Страница 24: ...29 LC 15B2EA 28 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 2 6 ...

Страница 25: ...31 LC 15B2EA 30 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 3 6 ...

Страница 26: ...33 LC 15B2EA 32 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 4 6 ...

Страница 27: ...35 LC 15B2EA 34 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 5 6 ...

Страница 28: ...37 LC 15B2EA 36 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 6 6 ...

Страница 29: ...39 LC 15B2EA 38 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 1 4 ...

Страница 30: ...41 LC 15B2EA 40 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 2 4 ...

Страница 31: ...43 LC 15B2EA 42 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 3 4 ...

Страница 32: ...45 LC 15B2EA 44 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 4 4 ...

Страница 33: ...46 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H Ë INVERTER Unit ...

Страница 34: ...47 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H PRINTED WIRING BOARD ASSEMBLIES RC LED Unit Component Side OPERATION Unit Component Side INVERTER Unit Component Side ...

Страница 35: ...48 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side A ...

Страница 36: ...49 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side B ...

Страница 37: ...50 LC 15B2EA 6 5 4 3 2 1 A B C D E F G H TUNER Unit Component Side ...

Страница 38: ...157AF AG IC1206 VHiLVX125FT 1 J TC74LVX125FT AG IC1207 VHiTC4W66U 1 J TC4W66FU AF IC1208 VHiPQ1R34 1Y J PQ1R34 AE IC2001 RH iXA160WJZZQ J M306V0ME 161FP BA IC2002 VHiPST529DM 1 J PST529DMT AE IC2004 VHiBR2416E2 1 J BR24C16F AK IC2030 VHiM95640MN 1Y J I C AK IC2031 VHiSNT1G32C 1 J SN74AHCT1G32DC AD IC2032 VHiTC4W66F 1 J TC4W66F AE IC3701 VHiNJM2377M 1 J NJM2377M AK IC3702 VHiNJM2147M 1 J NJM2147M T...

Страница 39: ...4Z J 0 68 16V Ceramic AB C842 VCKYCY1CF104Z J 0 1 16V Ceramic AA C843 VCCCCY1HH180J J 18p 50V Ceramic AA C844 VCCCCY1HH180J J 18p 50V Ceramic AA C845 VCCCCY1HH180J J 18p 50V Ceramic AA C846 VCCCCY1HH180J J 18p 50V Ceramic AA C847 VCCCCY1HH180J J 18p 50V Ceramic AA C848 VCCCCY1HH101J J 100p 50V Ceramic AA C850 VCCCCY1HH180J J 18p 50V Ceramic AA C1101 VCKYCY1EF104Z J 0 1 25V Ceramic AA C1102 VCKYCY1...

Страница 40: ...Metal Oxide AA R414 VRS CY1JF105J J 1M 1 16W Metal Oxide AA R415 VRS CY1JF105J J 1M 1 16W Metal Oxide AA R416 VRS CY1JF105J J 1M 1 16W Metal Oxide AA R417 VRS CY1JF331J J 330 1 16W Metal Oxide AA R418 VRS CY1JF101J J 100 1 16W Metal Oxide AA R419 VRS CY1JF101J J 100 1 16W Metal Oxide AA R420 VRS CY1JF152J J 1 5k 1 16W Metal Oxide AA R421 VRS CY1JF332J J 3 3k 1 16W Metal Oxide AA R422 VRS CY1JF471J...

Страница 41: ...0k 1 16W Metal Oxide AA R1185 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R1186 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R1187 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R1188 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R1190 VRS CY1JF000J J 0 1 16W Metal Oxide AA R1191 VRS CY1JF000J J 0 1 16W Metal Oxide AA R1192 VRS CY1JF000J J 0 1 16W Metal Oxide AA R1193 VRS CY1JF680J J 68 1 16W Metal Oxide AA R11...

Страница 42: ...746 VRS CY1JF122F J 1 2k 1 16W Metal Oxide AA R3749 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R3750 VRS CY1JF391J J 390 1 16W Metal Oxide AA R3751 VRS TV1JD103J J 10k 1 16W Metal Oxide AA R3752 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R3759 VRS TW2ED102J J 1 0k 1 4W Metal Oxide AA R3762 VRS TW2ED561J J 560 1 4W Metal Oxide AA R3766 VRS CY1JF472J J 4 7k 1 16W Metal Oxide AA R7003 VRS CY1JF000J J 0...

Страница 43: ...CE9PF0JW226M J 22 6 3V Elect N P AD C1606 VCEAPF1EW106M J 10 25V Electrolytic AB C1608 RC KZ1025CEZZ J 1 0 10V Ceramic AB C1609 VCKYCY1CF334Z J 0 33 16V Ceramic AA C1610 VCKYCY1EF104Z J 0 1 25V Ceramic AA C1611 VCEAPF0JW476M J 47 6 3V Electrolytic AB C1612 VCEAPF1CW106M J 10 16V Electrolytic AB C1613 VCEAPF1CW226M J 22 16V Electrolytic AB C1614 VCEAPF0JW107M J 100 6 3V Electrolytic AC C1616 VCCCCY...

Страница 44: ...AA C3363 VCEAPF1HW225M J 2 2 50V Electrolytic AB C3364 VCEAPF1HW105M J 1 0 50V Electrolytic AB C3365 VCKYCY1HB102K J 1000p 50V Ceramic AA C3366 VCEAPF1HW225M J 2 2 50V Electrolytic AB C3367 VCEAPF1CW106M J 10 16V Electrolytic AB C3368 VCEAPF1CW106M J 10 16V Electrolytic AB C3369 RC EZ1274CEZZ J 1000 16V Electrolytic AD C3370 VCKYTV1CF105Z J 1 0 16V Ceramic AB C3371 RC EZ1274CEZZ J 1000 16V Electro...

Страница 45: ... J 1 0k 1 16W Metal Oxide AA R1944 VRS CY1JF471J J 470 1 16W Metal Oxide AA R1945 VRS CY1JF471J J 470 1 16W Metal Oxide AA R1946 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R1947 VRS CY1JF392J J 3 9k 1 16W Metal Oxide AA R1948 VRS CY1JF473J J 47k 1 16W Metal Oxide AA R1950 VRS CY1JF473J J 47k 1 16W Metal Oxide AA R2200 VRS TX2HF1R0J J 1 0 1 2W Metal Oxide AA R2201 VRS CY1JF102J J 1 0k 1 16W Metal Ox...

Страница 46: ...B FB1608 RBLN 0006TAZZ J Ferrite Bead AB FB1609 RBLN 0006TAZZ J Ferrite Bead AB FB1640 RBLN 0076TAZZ J Ferrite Bead AC FB1641 RBLN 0076TAZZ J Ferrite Bead AC FB1672 RBLN 0076TAZZ J Ferrite Bead AC FB1673 RBLN 0076TAZZ J Ferrite Bead AC FB1674 RBLN 0076TAZZ J Ferrite Bead AC FB5001 RBLN 0062CEZZ J Ferrite Bead AC FB5002 RBLN 0062CEZZ J Ferrite Bead AC J3702 QJAKE0193CEZZ J POWER INPUT DC12V AK J390...

Страница 47: ...Z J Speaker R AR 1 11 XETSD40P12000 J Screw x8 AB 2 CCABB2358CE01 J Rear Cabinet Ass y BB 2 1 Not Available Rear Cabinet 2 2 HiNDP5980CESA J Model Label AG 2 3 LANGT9061CEFW J Fixing Metal BD 2 4 PMLT 0401CEZZ J Spacer x1 AB 2 5 PMLT 0409CEZZ J Spacer x4 AC 2 6 XEBSD30P08000 J Screw x1 AA 3 CDAi 1120CE08 J Stand BN 3 1 GCOVA1945CESA J Handle Cover AK 3 2 GDAi 1120CESA J Stand Base AX 3 3 GDAi 1121...

Страница 48: ... 2002 21 XBBSF30P05000 J Screw x2 AB 22 XBPSN30P09JS0 J Screw x3 AB 23 XBBSF30P08000 J Screw x2 AA 24 XEBSD30P08000 J Screw x4 AA 25 XEBSD30P12000 J Screw x4 AA 26 XEBSD30P06000 J Screw x2 AA 27 XWHJZ32 05080 J Washer AB CABINET PARTS LOCATION Continued ACCESSORIES LHLDW0109CESA J Cable Clamp x2 AD å QACCK0006TAZZ J AC Cord LC 15B2EA AL å QACCB0016TAZZ J AC Cord LC 15B2EA K AV RRMCGA031WJSA J Infr...

Страница 49: ...16 3 16 3 17 3 15 3 15 3 16 27 3 10 3 9 3 14 3 14 A 5 15 10 5 5 5 9 5 10 5 8 5 6 5 7 5 3 5 2 5 5 5 11 5 4 5 4 5 1 5 14 5 12 5 13 25 5 5 16 1 11 1 9 B A 24 1 1 1 8 1 24 1 7 4 2 OPERATION PWB RC LED PWB 4 1 10 1 3 1 3 1 3 1 4 1 4 1 4 1 4 1 2 1 7 1 11 8 1 6 1 6 1 5 1 5 17 4 3 4 1 4 4 4 5 C B 16 15 22 18 24 25 12 23 14 11 25 INVERTER PWB D D F 26 24 27 19 22 22 MAIN PWB TUNER PWB C F E E ...

Страница 50: ...Not Replacement Item Operation Manual TiNS 7629CEZZ Cable Clamp 2 pcs LHLDW0109CEZZ Dry Battery 2 pcs Guarantee Card LC 15B2EA K TGAN 1688CEN1 AC Adapter UADP 0240CEPZ AC Cord LC 15B2EA QACCK0006TAZZ AC Cord LC 15B2EA K QACCB0016TAZZ Wireless Remote Control RRMCGA031WJSA Wrapping Paper SPAKP0937CEZZ Packing Material SPAKF0575CEZZ ...

Страница 51: ... a retrieval system or transmitted 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 D Japan P Japan TQ1295 S Apr 2002 Printed in Japan NA KG ...

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