Sharp LC-15AV7U Service Manual Download Page 66

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15-6

A7121EL

Ref. No.

Part No.

Description

D952

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

D953

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

D954

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

D955

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

D956

9HSDTB00MTZJ12

ZENER DIODE MTZJT-7712B

D957

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

D958

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

D959

9HSDTZ001SS133

SWITCHING DIODE 1SS133(T-77)

ICS

IC31

9HSSZBA0SHT034

IC VIF/SIF M61116FP TF0G

IC61

9HSSZBA0TSS268

EEP-ROM 128K M24128-BWMN6TP

IC601

9HSPEC0LTV817F

PHOTOCOUPLER LTV-817C-F

IC801

9HSSZBA0SQ0007

IC AUDIO SA7412

IC851

9HSSZBA0TMS003

IC MTS DECORDER AN5832SA-E1V

IC852

9HSSZBA0TTS162

IC SWITCHING TC4052BF(ELNF)

IC901

9HSSZBA0TSS229

VOLTAGE REGULATOR LD1117SC-R

IC904

9HSSZBA0SSH054

VOLTAGE REGULATOR PQ070XF01SZH

IC905

9HSSZBA0SJY041

IC VOLTAGE REGULATOR 5V KIA7805API/P

IC906

9HSSZBA0SSH054

VOLTAGE REGULATOR PQ070XF01SZH

IC1202

9HSSZAA0RHT162

IC DVP-V6 R8A02030A93FP-RF0Z

IC1205

9HSSZBA0TRM071

IC BR24L64F-WE2

COILS

L21

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L22

9HSLAXJATTU151

INDUCTOR 150

H-J-26T

L31

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L32

9HSLAXJATTU180

INDUCTOR 18

H-J-26T

L61

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L63

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L66

9HSLACKB3TU1R0

INDUCTOR CHIP LK16081R0K-T 1.0

L401

9HSLBD00ASF045

INDUCTOR RCH114NP-151KB

L403

9HSLBD00ASF045

INDUCTOR RCH114NP-151KB

L601

9HSLBG00ZKT004

LINE FILTER 5.0MH 6Y075

L701

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L781

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L851

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L1200

9HSRXAJR5Z0330

CHIP RES. 1/10W J 33 OHM

L1227

9HSLBC003TU058

CHIP INDUCTOR BK1608LL241-T

L1301

9HSJW5.0T

PCB JUMPER D0.6-P5.0

L1338

9HSLAXJATTU010

INDUCTOR 1.0

H-J-26T

L1346

9HSLAXJATTU010

INDUCTOR 1.0

H-J-26T

L1351

9HSLAXJATTU010

INDUCTOR 1.0

H-J-26T

L1356

9HSLAXJATTU010

INDUCTOR 1.0

H-J-26T

TRANSISTORS

Q401

9HSQWZ2SC4881F

NPN TRANSISTOR POWER 2SC4881F HFE MAX320

Q402

9HSQSY02SA950F

TRANSISTOR 2SA950-Y(TE2 F T)

Q403

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q404

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q405

9HSQSF02SA1175

TRANSISTOR 2SA1175(F)

Q406

9HSQSY2SC2120F

TRANSISTOR 2SC2120-Y(TE2 F T)

Q407

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q421

9HSF2ZTPC8214H

FET MOS SMD TPC8214-H

Q422

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q424

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q425

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q461

9HSF2ZTPC8214H

FET MOS SMD TPC8214-H

Q462

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q464

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q601

9HSFWZ2SK3563Q

FET MOS 2SK3563(Q)

Q603

9HSQSY2SC2120F

TRANSISTOR 2SC2120-Y(TE2 F T)

Q707

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q708

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q709

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q802

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q901

9HSQSY2SC2120F

TRANSISTOR 2SC2120-Y(TE2 F T)

Q902

9HSQSY2SC2120F

TRANSISTOR 2SC2120-Y(TE2 F T)

Q903

9HSQSY2SC2120F

TRANSISTOR 2SC2120-Y(TE2 F T)

Q905

9HSQSY02SA950F

TRANSISTOR 2SA950-Y(TE2 F T)

Q906

9HSQSF02SC2785

TRANSISTOR 2SC2785(F)

Q907

9HSQSY2SC2120F

TRANSISTOR 2SC2120-Y(TE2 F T)

Summary of Contents for LC-15AV7U

Page 1: ...r after sales service only The contents are subject to change without notice LC 15AV7U Page SPECIFICATIONS 1 1 IMPORTANT SAFEGUARDS AND PRECAUTIONS 2 1 STANDARD NOTES FOR SERVICING 3 1 CABINET DISASSEMBLY INSTRUCTIONS 4 1 ELECTRICAL ADJUSTMENT INSTRUCTIONS 5 1 HOW TO INITIALIZE THE LCD TELEVISION 6 1 TROUBLESHOOTING 7 1 BLOCK DIAGRAMS 8 1 SCHEMATIC DIAGRAMS CBA S AND TEST POINTS 9 1 WAVEFORMS 10 1...

Page 2: ...y x AT 80 WHITE FIELD AT 100 WHITE FIELD K 0 278 10500 3 Resolution 0 005 0 005 4 Brightness Vertical Horizontal line line 0 286 400 350 350 cd m2 AUDIO All items are measured across 8Ω load at speaker output terminal with L P F Description Condition Unit Nominal Limit 1 Audio Output Power 10 THD Lch Rch W 1 0 1 0 0 8 0 8 2 Audio Distortion 500mW Lch Rch 1 5 1 5 3 0 3 0 3 Audio Freq Response 4 Aud...

Page 3: ...1 UHF BAND CH 41 VHF LOW BAND CH 4 VHF HI BAND CH 10 UHF BAND CH 41 A B C D E F G Lch Rch Lch Rch FF VHF LOW BAND CH 4 kHz dBm dB dB dB dB 100 76 0 26 6 6 50 3 Note Nominal specifications represent the design specifications All units should be able to approximate these Some will exceed and some may drop slightly below these specifications Limit specifications represent the absolute worst condition...

Page 4: ...eakage Current Hot Check With the instrument completely reassembled plug the AC line cord directly into a 120V AC outlet Do not use an isolation transformer during this test Use a leakage current tester or a metering system that complies with American National Standards Institute ANSI C101 1 Leakage Current for Appliances and Underwriters Laboratories UL 1410 50 7 With the instrument AC switch fir...

Page 5: ...ical parts have special safety related characteristics which are often not evident from visual inspection nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage wattage etc Parts that have special safety characteristics are identified by a on schematics and in parts lists Use of a substitute replacement that does not have the same safety...

Page 6: ...e an AC voltmeter having with 5000 ohm per volt or higher sensitivity or measure the AC voltage drop across the resistor 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 All checks must be repeated with the AC cord plug connection re...

Page 7: ...tre CA d une sensibilité d au moins 5000Ω V pour mesurer la chute de tension en travers de la résistance Toucher avec la sonde d essai les pièces métalliques exposées qui présentent une voie de retour au châssis antenne coffret métallique tête des vis arbres de commande et des boutons écusson etc et mesurer la chute de tension CA en travers de la résistance Toutes les vérifications doivent être re...

Page 8: ...As the melting point of lead free solder Sn Ag Cu is higher than the lead wire solder by 40 C we recommend you to use a dedicated soldering bit if you are not familiar with how to obtain lead free wire solder or soldering bit contact our service station or service branch in your area 3 Soldering As the melting point of lead free solder Sn Ag Cu is about 220 C which is higher than the conventional ...

Page 9: ...Soldering Iron 1 Using desoldering braid remove the solder from all pins of the flat pack IC When you use solder flux which is applied to all pins of the flat pack IC you can remove it easily Fig S 1 3 Flat Pack IC Desoldering Braid Soldering Iron Fig S 1 3 2 Lift each lead of the flat pack IC upward one by one using a sharp pin or wire to which solder will not adhere iron wire When heating the pi...

Page 10: ...o Solid Mounting Point Soldering Iron Iron Wire or Hot Air Blower Fig S 1 5 Fine Tip Soldeing Iron CBA Flat Pack IC Tweezers Fig S 1 6 2 Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more easily 2 The mark on the flat pack IC indicates pin 1 See Fig S 1 7 Be sure this mark matches the ...

Page 11: ...ounded to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escape through the body grounding band be careful to avoid contacting semi conductors with ...

Page 12: ...INSTRUCTIONS 1 2 3 4 5 Step Loc No Part Removal Fig No Remove Unhook Unlock Release Unplug Unclamp Desolder Note 6 IR Sensor CBA D2 D3 S 7 7 Jack Holder D2 S 8 CL1104 8 DTV Module CBA Unit D2 D4 7 S 9 CL801 CL802 CN61 CN62 CN401 CN403 CN1201 CN1202 Module PCB Holder 9 Main CBA D2 D4 10 LCD Holder D2 5 S 10 4 S 11 11 LVDS CBA Unit D2 D4 3 S 12 CN1411 12 LCD Module D2 13 Junction A CBA D2 Desolder 1...

Page 13: ...4 2 A7121DC Fig D1 3 Rear Cabinet 1 Arm Assembly S 3 S 4 S 3 S 1 2 Stand Cover S 2 S 2 S 3 S 3 ...

Page 14: ... 5 Tilt Stand Holder S 6 S 7 S 5 11 LVDS CBA Unit 9 Main CBA S 9 S 10 S 10 S 11 S 12 S 5 8 DTV Module CBA Unit Module PCB Holder 12 LCD Module 16 Front Cabinet S 9 S 8 S 9 S 9 S 10 S 10 S 11 S 11 S 11 S 5 S 9 14 Junction B CBA Fig D2 Speaker Holder S 13 Desolder Speaker Holder S 13 13 Junction A CBA Desolder ...

Page 15: ...01 CN403 To LCD Module Main CBA CN1302 IR Sensor CBA CN62 CN61 CN101 CN102 DTV Module CBA Unit CL1107 Function CBA CN1411 CN1401 CN1402 To LCD Module LVDS CBA Unit To Speaker CL801 Junction A CBA To Speaker CL802 Junction B CBA CN801 TV Cable Wiring Diagram ...

Page 16: ...on table 1 Press the number after MENU on the table to access next item Press CH o p to change data value Table 1 Initial Data VALUE DATA 1 2 RF BRT MENU 122 RF CNT 200 RF CLR R 130 RF CLR B 115 RF TNT 135 RF SHR 123 V BRT MENU 112 V CNT 182 V CLR R 110 V CLR B 110 V TNT 138 V SHR 112 ITEM on the remote control BUTTON ELECTRICAL ADJUSTMENT INSTRUCTIONS ITEM VALUE DATA COR C D1 VOL 1 VOL 3 VOL 4 VO...

Page 17: ... within specification adjust DB C D1 or DR C D1 or DR C D1 Refer to 1 Initial Setting RF INPUT1 APL20 Press 3 button to select COB C D1 for Blue adjustment Press 1 button to select COR C D1 for Red adjustment When x value and y value are not within specification adjust COB C D1 or COR C D1 Refer to 1 Initial Setting 6 INPUT2 APL80 Press 6 button to select C DB C D2 for Blue adjustment Press 4 butt...

Page 18: ...contrast and brightness controls are set to initial position 4 Confirm C position was beginning to bright 5 If C position was beginning to bright no need to adjust 6 If C position is not available or to be highly bright ness then adjust IIC BUS dada RF INPUT1 BRT INPUT2 D1 BRT 7 Turn the power off and on again Main power button on the TV unit ...

Page 19: ...MENU and POWER buttons on the TV unit simultaneously in the standby mode 2 To initialize the LCD television press DISPLAY button on the remote control unit 3 Confirm FF indication on the upper right of the screen HOW TO INITIALIZE THE LCD TELEVISION ...

Page 20: ... output 7 4 13 AL 1 2V D is not output 7 4 14 AL 3 3V A is not output 7 4 15 P ON 5V 1 is not output 7 5 16 12V is not output 7 5 17 P ON 9V is not output 7 5 18 DTV ON 1 8V is not output 7 5 19 The key operation is not functioning 7 6 20 No operation is possible from the remote control unit 7 6 21 Picture does not appear normally Tuner input Analog Video input S Video input 7 7 22 Picture does no...

Page 21: ... Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side and service it if defective After servicing replace the fuse When the output voltage fluctuates FLOW CHART NO 3 Does the photocoupler circuit on the secondary side operate normally No Yes Check IC601 Q913 D909 D933 and their periphery and service it if defective When buzz sound can be h...

Page 22: ...ce it defective DTV ON 2 5V is not output FLOW CHART NO 9 Yes No Check Q909 D924 and their periphery circuit and service it if defective See FLOW CHART No 8 DTV ON 3 3V is not output FLOW CHART NO 8 Yes No Is approximately 5V voltage supplied to the cathode of D906 Check D906 C905 and their periphery circuit and service it if defective Check Q908 D923 and their periphery circuit and service it if ...

Page 23: ...e Pin 3 of IC901 AL 3 3V D is not output FLOW CHART NO 12 Is approximately 6 8V voltage supplied to the cathode of D903 No Yes Check D903 C903 and their periphery circuit and service it if defective Yes Check Q907 D922 and their periphery circuit and service it if defective Yes See FLOW CHART No 12 See FLOW CHART No 11 Check Q902 D920 and their periphery circuit and service it if defective No AL 3...

Page 24: ...age supplied to the cathode of D902 Is approximately 11 8V voltage supplied to the collector of Q923 No Is the voltage of base on Q923 lower than the voltage of emitter on Q923 when turning the power on See FLOW CHART No 16 No DTV ON 1 8V is not output FLOW CHART NO 18 Is approximately 3 3V voltage supplied to the cathode of D911 Check IC904 and their periphery circuit and service it if defective ...

Page 25: ...ry and service it if defective Yes Check IC1202 and the periphery circuit and service it if defective Check IC1202 and the periphery circuit and service it if defective No Is the L pulse sent out Pin 1 terminal of receiver RCV1142 when the infrared remote control is activated Check the line between Pin 1 terminal of receiver RCV1142 and Pin 3 of CN1302 and service it if defective Yes Is the L puls...

Page 26: ... Check the line between Pin 64 of IC1202 and Pin 20 of CN62 and service it if defective Are the Y signals inputted to the Pin 73 of IC1202 Are the Pb signals inputted to the Pin 54 of IC1202 Are the Pr signals inputted to the Pin 64 of IC1202 Are the video signals inputted to the specific input terminal FLOW CHART NO 21 Are the video signals outputted to the specific output terminal Are the DIF si...

Page 27: ...udio is not outputted normally Tuner input FLOW CHART NO 24 Are the DIF signals outputted to the Pins 11 12 of CN62 No Yes Check the line between Pins 11 12 of CN62 and TU61 and service it defective Are the audio L R signals outputted to the Pin 15 16 of CN62 No Yes Replace DTV MODULE CBA UNIT Are the audio L R signals inputted to the Pins 5 14 of IC852 No Yes Check the line between Pins 5 14 of I...

Page 28: ...e the audio L R signals outputted to the Pins 3 13 of IC852 No Yes Check IC852 and the periphery circuit and service it if defective Are the audio L R signals outputted to the Pins 11 14 of IC801 No Yes Check SP801 SP802 JK801 and their periphery circuit and service it if defective Check IC801 and the periphery circuit and service it if defective Audio is not outputted normally Audio input termina...

Page 29: ...DIO MUTE INPUT 0 INPUT 1 S SW SCL SDA IC61 MEMORY SCL 6 5 SDA 29 BUS OPEN 5 AFT IN 44 FSC AFT IN FSC Q917 IR SENSOR CBA CL1104 CN1302 REMOTE SENSOR RV1142 REMOTE 3 3 157 SDA SCL BACKLIGHT ADJ 20 TO LCD BACKLIGHT BLOCK DIAGRAM BACKLIGHT ADJ BACKLIGHT SW BACKLIGHT SW 152 DTV ON H DTV ON H IC1205 MEMORY SCL 6 SDA 5 7 WP 17 16 15 155 153 IC101 DTV SIGNAL PROCESS DTV MODULE CBA UNIT 38 155 154 153 204 ...

Page 30: ...O IN TO SYSTEM CONTROL BLOCK DIAGRAM S SW IF MUTE C Y INPUT 0 INPUT 1 INPUT 2 TO SYSTEM CONTROL BLOCK DIAGRAM Q707 Q708 INPUT 2 INV Q709 TUNER UNIT CF31 IC31 IF SIGNAL PROCESS VIF AMP VIDEO DET VCO 4 5MHz FILTER RF AGC AMP SIF AMP 16 13 18 17 4 7 8 1 TO SYSTEM CONTROL BLOCK DIAGRAM AFT IN SIF TRAP 11 FSC IF AGC DET AFT EQ AMP 2 DEFEAT RF CVBS S VIDEO C S VIDEO Y VIDEO Y VIDEO Pb VIDEO Pr VIDEO IN1...

Page 31: ...BLOCK DIAGRAM TUNER TUNER L CH R CH 21 27 24 IC851 MTS SAP AUDIO SIGNAL PROCESS AUDIO L IN1 JK704 DIGITAL AUDIO OUT JK1701 SIF JK705 AUDIO R IN1 JK709 AUDIO L IN2 JK710 AUDIO R IN2 OFFSET CANCEL 14 IC801 AUDIO AMP 7 VOLUME 11 AMP AMP MUTE STANDBY CONTROL R CH L CH 2 Q802 P ON 5V TO IF VIDEO BLOCK DIAGRAM 13 2 WF7 AUDIO1 AUDIO2 AUDIO1 AUDIO2 SIF BB SW INPUT VCA SIF DEMOD INPUT 2 INV 6 DTV DTV 5 1 D...

Page 32: ...O DECODER AUDIO D A CONVERTER SDRAM I F FLASH MEMORY I F IC201 DDR SDRAM 2 2 DTV SPDIF 14 14 SDA 15 15 SCL 4 5 5 5 TU SDA 4 4 TU SCL CN62 L CH R CH SDA SCL BUS CONT 1 1 79 81 85 87 89 91 92 94 96 98 102 104 106 2 2 55 56 58 60 61 116 119 120 124 125 127 129 130 3 3 1 2 7 12 20 206 209 211 213 216 4 4 23 25 27 29 32 36 41 44 47 48 50 52 54 205 5 5 1 9 16 25 48 6 6 29 36 38 45 7 7 28 32 35 42 8 8 2 ...

Page 33: ...B G DE QCLKL CVBS C Y WF3 WF2 WF4 WF5 WF6 VIDEO IN1 71 DTV Y DTV Pb 73 54 DTV Pr 64 125 QRL 1 18 16 QRL 0 19 15 QRL 3 16 18 QRL 2 17 17 QRL 5 14 20 QRL 4 15 19 QRL 7 12 22 QRL 6 13 21 QGL 0 9 25 QGL 1 8 26 QGL 2 7 27 QGL 3 6 28 QGL 4 5 29 QGL 5 4 30 QGL 6 3 31 QGL 7 2 32 DE 25 9 QBL 0 20 6 QBL 1 19 7 QBL 2 18 8 QBL 3 17 9 QBL 4 16 10 QBL 5 15 11 QBL 6 14 12 QBL 7 13 13 QCLKL 24 2 CN1401 CN1402 IC1...

Page 34: ... CN1411 CN1402 LVDS CBA UNIT Q908 SW 3 3V Q909 SW 2 5V Q918 SW 9V Q907 SW 5V Q903 SW 5V SWITCHING Q906 SWITCHING SWITCHING CN102 DTV ON 3 3V 4 4 CN62 DTV ON 2 5V 5 5 DTV ON 1 8V 6 6 DTV ON 3 3V DTV ON 1 8V DTV ON 2 5V CN101 DTV ON 5V 3 3 CN61 DTV ON 5V DTV MODULE CBA UNIT SWITCHING Q925 Q924 SW 5V CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fu...

Page 35: ... 9 7 3 5 2 6 1 4 10 8 TO POWER SUPPLY BLOCK DIAGRAM MAIN CBA CURRENT CONTROL SWITCH Q461 Q464 T403 OVER VOLTAGE PROTECTOR Q462 9 7 3 5 2 6 1 4 10 8 OVER VOLTAGE PROTECTOR Q404 Q406 10V REG OVER CURERENT PROTECTOR Q425 Q405 SWITCHING SWITCHING SWITCHING BACKLIGHT ADJ Q401 SW 22V TO SYSTEM CONTROL BLOCK DIAGRAM SWITCHING Q407 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD ...

Page 36: ...er shown on these drawings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 All resistance values are indicated in ohms K 103 M 106 3 Resistor wattages are 1 4W or 1 6W unless otherwise specified 4 All capacitance values are indicated in µF P 10 6 µF 5 All voltages are DC voltages unless otherwise specifie...

Page 37: ...se only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Note Mark is a leadless chip component 6 Voltage indications on the schematics are as shown below Plug the TV po...

Page 38: ...CN1201 1 0 2 1 2 3 1 0 4 1 0 5 1 7 6 0 7 7 1 1 8 1 3 9 1 2 10 0 11 0 12 1 2 13 0 9 14 1 1 15 1 4 16 0 9 17 1 1 18 1 3 19 1 1 20 0 21 0 22 0 23 0 24 0 25 2 7 26 0 27 0 28 3 3 29 0 30 0 31 3 4 32 0 33 0 CN1202 1 3 5 2 3 5 VOLTAGE CHART Pin No Voltage Pin No Voltage 3 3 5 4 3 5 5 3 5 6 3 5 7 3 5 8 3 5 9 3 5 10 0 11 0 12 0 13 1 2 14 1 2 15 0 6 16 1 5 17 0 8 18 1 2 19 1 3 20 1 1 21 0 22 0 23 0 24 1 0 2...

Page 39: ...on IC31 I 1 IC61 K 1 IC851 G 3 IC852 J 4 CN61 L 2 CN62 G 2 ICS CONNECTORS CN61 1 0 2 1 9 3 5 1 4 3 1 5 3 1 6 0 7 3 2 8 3 4 9 3 4 10 0 1 11 0 12 0 1 13 0 14 3 1 15 3 1 CN62 1 2 3 3 3 0 4 3 4 5 2 6 6 1 9 7 8 0 9 4 4 10 0 11 0 12 0 13 0 14 15 2 6 16 2 6 17 0 18 19 20 VOLTAGE CHART Pin No Voltage Pin No Voltage ...

Page 40: ...9 5 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD A7121SCM3 Main 3 5 Junction A Junction B Schematic Diagram MAIN 3 5 Ref No Position IC801 N 2 Q707 P 3 Q708 P 2 Q709 P 2 Q802 N 1 IC TRANSISTORS ...

Page 41: ...ING BOARD A7121SCM4 Main 4 5 Schematic Diagram MAIN 4 5 Ref No Position Q401 V 3 Q402 W 3 Q403 W 3 Q404 V 1 Q405 W 2 Q406 V 2 Q407 V 2 Q421 S 4 Q422 V 4 Q424 T 3 Q425 U 3 Q461 S 2 Q462 V 3 Q464 T 1 CN401 X 4 CN403 X 4 CONNECTORS TRANSISTORS ...

Page 42: ...ts in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal A7121SCM5 Main 5 5 Schematic Diagram MAIN 5 5 Ref No Position IC601 AA 1 IC901 DD 2 IC904 BB 2 IC905 BB 1 IC906 CC 3 Q601 Y 2 Q603 Z ...

Page 43: ...9 8 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD A7121SCF Function Schematic Diagram ...

Page 44: ...9 9 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD A7121SCIR IR Sensor Schematic Diagram ...

Page 45: ...9 10 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD A7121SCLV LVDS Schematic Diagram LVDS Ref No Position IC1401 C 4 CN1401 A 4 CN1402 A 2 CN1411 E 3 CONNECTORS IC ...

Page 46: ...9 11 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD A7121SCD1 DTV Module 1 2 Schematic Diagram DTV MODULE 1 2 Ref No Position IC101 E 1 CN251 A 1 CONNECTOR IC ...

Page 47: ...NG BOARD A7121SCD2 DTV Module 2 2 Schematic Diagram DTV MODULE 2 2 Ref No Position IC201 H 4 IC202 J 4 IC252 G 2 IC291 I 2 Q211 J 2 Q212 J 2 Q213 J 2 Q214 J 2 Q243 I 1 Q244 J 1 Q245 J 1 Q251 K 2 CN101 L 2 CN102 L 1 ICS TRANSISTORS CONNECTORS ...

Page 48: ... supply circuit an isolation transformer must be used Also in order to have the ability to increase the input slowly when troubleshooting this type power supply circuit a variable isolation transformer is required NOTE CBA AND PWB MEANS PRINTED WIRING BOARD MAIN CBA Ref No Position Ref No Position IC31 B 3 Q708 C 1 IC61 A 3 Q709 C 2 IC601 D 5 Q802 D 4 IC801 C 5 Q901 E 2 IC851 C 2 Q902 D 1 IC852 B ...

Page 49: ...is unit If Main Fuse F601 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail Because a hot chassis ground is present in the power supply circuit an isolation transformer must be used Also in order to have the ability to increase the i...

Page 50: ...ion CBA Bottom View BA7120F01021 1 IR Sensor CBA Top View IR Sensor CBA Bottom View BA7120F01021 2 NOTE CBA AND PWB MEANS PRINTED WIRING BOARD BA7120F01021 3 BA7120F01021 4 Junction A CBA Top Bottom View Junction B CBA Top Bottom View ...

Page 51: ...check points Shown in Schematic Diagram CVBS 0 2V 20µs WF1 Pin 71 of IC1202 S VIDEO Y 0 2V WF2 Pin 76 of IC1202 20µs S VIDEO C 0 2V WF3 Pin 57 of IC1202 20µs AUDIO 0 1V 0 5ms WF7 Pin 14 of IC801 VIDEO Pr 0 2V 20µs Pin 66 of IC1202 WF6 VIDEO Pb 0 2V 20µs Pin 56 of IC1202 WF5 VIDEO Y 0 2V 20µs 20µs Pin 75 of IC1202 WF4 ...

Page 52: ... CN1411 1 3 2 5 4 7 6 8 9 10 13 12 11 14 15 17 16 19 18 20 TC GND TB TB GND TA TA GND GND PANEL 3 3V PANEL 3 3V TC GND TCLK TCLK GND TD TD GND NU CN1201 1 3 2 5 4 7 6 8 9 10 13 12 11 14 15 17 16 19 18 21 20 22 23 24 27 26 25 28 GND GND QGL 0 QGL 1 QGL 2 QGL 3 QGL 4 QGL 5 QGL 6 QGL 7 GND QRL 7 QRL 6 QRL 5 QRL 4 QRL 3 QRL 2 QRL 1 QRL 0 GND GND GND GND GND DE GND GND HD NU 31 30 29 32 GND GND VD NU G...

Page 53: ...ction 1 VDD 3 3V 3 3V VDD 2 VDD 3 3V 3 3V VDD 3 KEY IN 1 Key Input 1 4 KEY IN 2 Key Input 2 5 AFT IN AFT Voltage Input 6 PROTECT 1 Power Supply Protection 1 7 PROTECT 2 Power Supply Protection 2 8 PROTECT 4 Power Supply Protection 4 9 ADIN6 Reference Terminal 10 VSS GND 11 NU Not Used 12 NU Not Used 13 NU Not Used 14 NU Not Used 15 DTV S SOUT DTV Serial Data Out 16 DTV S SIN DTV Serial Data In 17 ...

Page 54: ...Y Luminance Signal Input 77 AVDDA 3 3V VDD 78 VSS GND 79 VDD 3 3V 3 3V VDD 80 VSS GND 81 VSS GND 82 VDD 3 3V 3 3V VDD 83 VDD 3 3V 3 3V VDD Pin No Signal Name Function 84 NU Not Used 85 NU Not Used 86 NU Not Used 87 NU Not Used 88 NU Not Used 89 NU Not Used 90 NU Not Used 91 NU Not Used 92 NU Not Used 93 NU Not Used 94 RESET Reset Output 95 NU Not Used 96 NU Not Used 97 NU Not Used 98 NU Not Used 9...

Page 55: ...ACKLIGHT SW Inverter Control Signal Output 158 BOOT SEL Boot Select 159 VSS GND 160 VSS GND Pin No Signal Name Function 1 ANODE Anode LED 2 CATHODE Cathode LED 3 EMITTER Phototransistor Emitter 4 COLLECTOR Phototransistor Collector Pin No Signal Name Function Pin No Signal Name Function 1 CH1 IN A Audio Signal Intput R ch 2 MUTE STANDBY Mute Switching 3 NU 4 GND GND 5 RF Reference Terminal 6 CH2 I...

Page 56: ... 5 1Y Audio Signal 1 Input R ch 6 INH Input Select Signal 7 VEE GND 8 GND GND 9 B Input Select B Signal 10 A Input Select A Signal 11 3X Audio Signal 3 Input L ch 12 0X Audio Signal 0 Input L ch 13 X COM Audio Signal Output L ch 14 1X Audio Signal 1 Input L ch 15 2X Audio Signal 2 Input L ch 16 VDD VDD Pin No Signal Name Function 1 GND GND 2 V IN Input Voltage 3 V OUT Output Voltage Pin No Signal ...

Page 57: ...h this mark Main CBA AC601 Function CBA DTV Module CBA Unit SP801 SP802 A1 A7 A3 L3 A4 B14 L3 B14 B14 B14 B14 L21 L6 B2 L6 L19 S10 L2 B5 L19 L6 L6 B13 L21 A6 L12 L6 L21 B3 B14 L19 L6 LCD 1 IR Sensor CBA L6 L6 L19 L21 B4 L21 L9 B10 L9 B9 L5 A10 A9 LVDS CBA Unit A15 A11 CL1402 CL1401 CL1411 A20 L21 L6 B1 B1 Junction A CBA L6 L6 B1 B1 Junction B CBA L6 ...

Page 58: ...13 2 Packing A7121PEX S1 FRONT FRONT S2 S10 S4 Tape Packing Tape Packing Tape Packing Tape S3 X1 Some Ref Numbers are not in sequence X4 X6 X3 X2 Packing Tape Shipping Label ...

Page 59: ... incendie ou toutautre sinistre COMMENT COMMANDER LES PIECES DE RECHANGE Pourquevotrecommandesoitrapidementetcorrectement remplie veuillez fournir les renseignements suivants 1 NUMERO DU MODELE 2 NO DE REF 3 NO DE PIECE 4 DESCRIPTION in CANADA Contact SHARP Electronics of Canada Limited Phone 416 890 2100 Ref No Part No Description A1 9HS1EM021646 FRONT CABINET A7121UH A3 9HS1EM322535 CONTROL PLAT...

Page 60: ...ER S0407F10 S1 9HS1EM424244 CARTON A7121UH S2 9HS1EM021669 STYROFOAM TOP A7121UH S3 9HS1EM021674 STYROFOAM BOTTOM A7121UH S4 9HS0EM301908 SET BAG L0110UA S10 BARCODE LABEL A7121UH X1 9HS0EM408420A BAG POLYETHYLENE 235X365XT0 03 X2 9HS1EMN22131 OWNERS MANUAL A7121UH X3 9HSREMT32HD004 REMOTE CONTROL ETR0088 010200 X4 9HSB0M311MS001 DRY BATTERY R6UW 2S X6 9HS1EM322562 REGISTRATION CARD A7121UH ...

Page 61: ...es de s élecurit éle sont identifi élees dans ce manuel les pièces élelectriques qui pr élesentent ces particularit éles sont rep éler élee par la marque et sont hachur élees dans les listes de pièces et dans les diagrammes sch élematiques La substitution d une pièce de rechange par une autre qui ne pr éLesente pas les m éoemes caract éleristiques de s élecurit éle que la pièce recommand élee parl...

Page 62: ...0B102 CHIP CERAMIC CAP 1608 B K 1000pF 50V C89 9HSHD1JJ3CH221 CHIP CERAMIC CAP CH J 220pF 50V C90 9HSE1JMASDL100 ELECTROLYTIC CAP 10µF 50V M C401 9HSCA1JZTFZ104 CERAMIC CAP AX F Z 0 1µF 50V C402 9HSHD1JK30B562 CHIP CERAMIC CAP 1608 B K 5600pF 50V C403 9HSE1JMASDL100 ELECTROLYTIC CAP 10µF 50V M C405 9HSE1JMASDL1R0 ELECTROLYTIC CAP 1µF 50V M C421 9HSE1JMASDL100 ELECTROLYTIC CAP 10µF 50V M C423 9HSA3...

Page 63: ...CERAMIC CAP F Z 2 2µF 10V C868 9HSHD1AK30B105 CHIP CERAMIC CAP 1608 B K 1µF 10V C869 9HSHD1JK30B223 CHIP CERAMIC CAP 1608 B K 0 022µF 50V C872 9HSCA1JZTFZ104 CERAMIC CAP AX F Z 0 1µF 50V C901 9HSE1EMZPDL222 ELECTROLYTIC CAP 2200µF 25V M C902 9HSE1EMASDL471 ELECTROLYTIC CAP 470µF 25V M C903 9HSE1CMZPDL102 ELECTROLYTIC CAP 1000µF 16V M C904 9HSE1JMAVSLR47 ELECTROLYTIC CAP 0 47µF 50V M H7 C905 9HSE1C...

Page 64: ...HSHD1JK30B104 CHIP CERAMIC CAP 1608 B K 0 1µF 50V C1344 9HSHD1EZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1µF 25V C1345 9HSHD1JK30B104 CHIP CERAMIC CAP 1608 B K 0 1µF 50V C1346 9HSHD1EZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1µF 25V C1347 9HSHD1EZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1µF 25V C1348 9HSHD1EZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1µF 25V C1349 9HSE1CMASDL470 ELECTROLYTIC CAP 47µF 16V M C1350 9HSHD1JK30...

Page 65: ...T PCB JUMPER D0 6 P5 0 D901 9HSD7Z000ERB84 SCHOTTKY BARRIER DIODE ERB84 009 D902 9HSDQZ000FR202 RECTIFIER DIODE FR202 B P D903 9HSDQZ0021DQ04 SCHOTTKY BARRIER DIODE 21DQ04 D905 9HSDTC0MTZJ7R5 ZENER DIODE MTZJT 777 5C D906 9HSDPZERC81004 SCHOTTKY BARRIER DIODE ERC81 004 D909 9HSDLZ000FR154 DIODE FR154 D910 9HSDLZ001ZC43Q DIODE 1ZC43 Q D911 9HSDPZERC81004 SCHOTTKY BARRIER DIODE ERC81 004 D913 9HSDLZ...

Page 66: ...NE FILTER 5 0MH 6Y075 L701 9HSJW5 0T PCB JUMPER D0 6 P5 0 L781 9HSJW5 0T PCB JUMPER D0 6 P5 0 L851 9HSJW5 0T PCB JUMPER D0 6 P5 0 L1200 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 OHM L1227 9HSLBC003TU058 CHIP INDUCTOR BK1608LL241 T L1301 9HSJW5 0T PCB JUMPER D0 6 P5 0 L1338 9HSLAXJATTU010 INDUCTOR 1 0µH J 26T L1346 9HSLAXJATTU010 INDUCTOR 1 0µH J 26T L1351 9HSLAXJATTU010 INDUCTOR 1 0µH J 26T L1356 9HSLAXJ...

Page 67: ...XAJR5Z0223 CHIP RES 1 10W J 22k Ω R75 9HSRXAJR5Z0103 CHIP RES 1 10W J 10k Ω R401 9HSRXAJR5Z0152 CHIP RES 1 10W J 1 5k Ω R402 9HSCX4JATZ0273 CARBON RES 1 4W J 27k Ω R403 9HSCX4JATZ0151 CARBON RES 1 4W J 150 Ω R404 9HSCX4JATZ0562 CARBON RES 1 4W J 5 6k Ω R406 9HSRXAJR5Z0332 CHIP RES 1 10W J 3 3k Ω R407 9HSRXAJR5Z0103 CHIP RES 1 10W J 10k Ω R408 9HSCX4JATZ0821 CARBON RES 1 4W J 820 Ω R409 9HSCX4JATZ0...

Page 68: ...10W J 75 Ω R738 9HSRXAJR5Z0101 CHIP RES 1 10W J 100 Ω R739 9HSRXAJR5Z0101 CHIP RES 1 10W J 100 Ω R742 9HSRXAJR5Z0750 CHIP RES 1 10W J 75 Ω R744 9HSRXAJR5Z0750 CHIP RES 1 10W J 75 Ω R756 9HSRXAJR5Z0223 CHIP RES 1 10W J 22k Ω R759 9HSRXAJR5Z0223 CHIP RES 1 10W J 22k Ω R783 9HSRXAZR5Z0000 CHIP RES 1608 1 10W 0 Ω R786 9HSRXAZR5Z0000 CHIP RES 1608 1 10W 0 Ω R797 9HSRXAJR5Z0392 CHIP RES 1 10W J 3 9k Ω R...

Page 69: ...4JATZ0473 CARBON RES 1 4W J 47k Ω R923 9HSCX4JATZ0102 CARBON RES 1 4W J 1k Ω R924 9HSRXAJR5Z0103 CHIP RES 1 10W J 10k Ω R925 9HSRXAJR5Z0103 CHIP RES 1 10W J 10k Ω R926 9HSCX4JATZ01R8 CARBON RES 1 4W J 1 8 Ω R927 9HSCX4JATZ0471 CARBON RES 1 4W J 470 Ω R928 9HSCX4JATZ0471 CARBON RES 1 4W J 470 Ω R929 9HSCX4JATZ01R5 CARBON RES 1 4W J 1 5 Ω R930 9HSJW5 0T PCB JUMPER D0 6 P5 0 R931 9HSJW5 0T PCB JUMPER...

Page 70: ...W J 33 Ω R1220 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1221 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1222 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1223 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1224 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1225 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1226 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R1229 9HSRXAJR5Z0102 CHIP RES 1 10W J 1k Ω R1231 9HSRXAJR5Z0330 CHIP RES 1 10W J 33 Ω R123...

Page 71: ...004 CERAMIC FILTER SFSRA4M50CF00 B0 F601 9HSAGE20CW3402 FUSE STC4A125V U CT FH601 9HSH01Z00LY002 FUSE HOLDER MSF 015 LF B110 FH602 9HSH01Z00LY002 FUSE HOLDER MSF 015 LF B110 GP642 9HSAZ000LD6005 GAP FNR G3 10D J152 9HSLBF00STU026 BEAD INDUCTORS FBA04HA600VB 00 JK701 9HSYEJ040JC001 Y C JACK YKF51 5646N JK703 9HSXRJ010SNJ01 RCA JACK AV 4B 54H YELLOW JK704 9HSXRJ010SNJ04 RCA JACK WHITE AV 4B 58H WHIT...

Page 72: ...038 TACT SWITCH SKQSAB MISCELLANEOUS CL1107 9HSX1A7121 003 WIRE ASSEMBLY 4PIN SW 15V 4PIN 85MM FUNCTION CBA IR SENSOR CBA JUNCTION A B CBA 9HS1ESA14126 9HS1ESA14126 FUNCTION CBA IR SENSOR CBA JUNCTION A B CBA Consists of the following FUNCTION CBA IR SENSOR CBA JUNCTION A CBA JUNCTION B CBA Ref No Part No Description IR SENSOR CBA CAPACITOR C1142 9HSE1JMAVSL2R2 ELECTROLYTIC CAP 2 2µF 50V M H7 DIOD...

Page 73: ...TION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in 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 Feb 2007 Printed in USA ...

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