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20100715

15-17

A0C72/73EL

TACT SWITCH KSMC632A

SST0101HH025

SW102

TACT SWITCH SKHHLMA010 or

SST0101AL049

TACT SWITCH KSMC632A

SST0101HH025

SW103

TACT SWITCH SKHHLMA010 or

SST0101AL049

TACT SWITCH KSMC632A

SST0101HH025

SW104

TACT SWITCH SKHHLMA010 or

SST0101AL049

TACT SWITCH KSMC632A

SST0101HH025

SW105

TACT SWITCH SKHHLMA010 or

SST0101AL049

TACT SWITCH KSMC632A

SST0101HH025

SW106

TACT SWITCH SKHHLMA010 or

SST0101AL049

TACT SWITCH KSMC632A

SST0101HH025

MISCELLANEOUS

JS902

CHIP RES.(1608) 1/10W 0

Ω

RRXAZR5Z0000

RES CHIP 1608 1/10W J 0

Ω

RRXA000YF002

JS903

CHIP RES.(1608) 1/10W 0

Ω

RRXAZR5Z0000

RES CHIP 1608 1/10W J 0

Ω

RRXA000YF002

RS101

SENSOR REMOTE RECEIVER KSM-712TH2E
or

USESJRSKK044

SENSOR REMOTE RECEIVER KSM-712TH5B-
FU or

USEJRS0KK006

SENSOR REMOTE RECEIVER KSM-712TH2M USEJRS0KK001

Ref. No.

Description

Part No.

TU1

TUNER UNIT DTOS40AML201A

UTNPSG0SM002

Ref. No.

Description

Part No.

Содержание A0C72EP

Страница 1: ...EP model For the LH850 M22 A0C72EP LH851 M22 A0C73EP model the letter A0C72EP A0C73EP is printed on the Serial Number Label on the back of the unit Refer to the Serial Number Label below Serial No Lab...

Страница 2: ...ze the LCD Television 6 1 Firmware Renewal Mode 7 1 Troubleshooting 8 1 Block Diagrams 9 1 Schematic Diagrams CBA and Test Points 10 1 Waveforms 11 1 Wiring Diagram 12 1 Exploded View 13 1 Mechanical...

Страница 3: ...iption Condition Unit Nominal Limit 1 RECEIVED FREQ RANGE 60dBm 45ch 1 2 kHz kHz 1000 900 500 167 2 INPUT DYNAMIC RANGE mix max c 1 VHF HIGH 8ch UHF 45ch dBuV dBuV 25 101 25 101 28 98 29 98 d 2 VHF HI...

Страница 4: ...ghtly below these specifications Limit specifications represent the absolute worst condition that still might be considered acceptable In no case should a unit fail to meet limit specifications Descri...

Страница 5: ...terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 megohm an abnormality exists that must be corrected before the instrum...

Страница 6: ...near thermally hot parts be sure that leads and components do not touch thermally hot parts c the AC supply d high voltage and e antenna wiring Always inspect in all areas for pinched out of place or...

Страница 7: ...PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before soldering F Observe tha...

Страница 8: ...and externally exposed accessible parts RF terminals an tenna terminals video and audio input and output ter minals microphone jacks earphone jacks etc Measuring Method Power ON Insert load Z between...

Страница 9: ...the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Relea...

Страница 10: ...ins of the flat pack IC you can remove it easily Fig S 1 3 2 Affix the wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or hot...

Страница 11: ...occur due to a potential difference caused by electrostatic charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1 M that is properly grounded to remove any...

Страница 12: ...Screws S 2 2 L 2 two Locking Tabs L 2 5 Refer to the following Reference Notes in the Table Step Loc No Part Removal Fig No Remove Unhook Unlock Release Unplug Unclamp Desolder Note 1 Stand Assembly...

Страница 13: ...4 2 A0C72_73DC 2 Rear Cabinet 1 Stand Assembly S 3 S 2 S 2 S 2 S 2 S 2 S 4 S 5 S 1 Fig D1...

Страница 14: ...k CBA 4 Main CBA 9 Digital Main CBA Unit 10 LCD Module Assembly 11 Speaker 11 Speaker 12 Function CBA 13 Front Cabinet S 11 S 13 S 13 S 7 S 7 S 7 S 7 S 7 S 15 S 14 S 6 S 9 S 16 S 16 S 12 H 1 Speaker H...

Страница 15: ...Main CBA Digital Main CBA Unit Jack CBA CN3704 CN3702 CN3703 CN3701 CN3901 Function CBA To Speaker To Speaker To LCD Module Assembly CN101B CN452 CN401 CN404 CN403 CN402 CN1550 CN1650 CN1750 CN801 AC...

Страница 16: ...stments unless the proper equipment is available Test Equipment Required 1 NTSC Pattern Generator Color Bar W White Window Red Color Dot Pattern Gray Scale Monoscope Multi Burst 2 Remote control unit...

Страница 17: ...he LCD Panel surface 3 Enter the Service mode 4 To enter the VCOM 2 adjustment mode press 3 button on the remote control unit To enter the VCOM 1 adjustment mode press 2 button on the remote control u...

Страница 18: ...de 5 CUTOFF Press 1 button to select COR for Red Cutoff adjustment Press 3 button to select COB for Blue Cutoff adjustment DRIVE Press 4 button to select DR for Red Drive adjustment Press 6 button to...

Страница 19: ...the service mode Refer to page 5 1 To cancel the service mode press button on the remote control unit 3 Press button on the remote control unit to initialize the LCD television 4 INITIALIZED will app...

Страница 20: ...h digit of the file name indicate the size of TV If the size of your TV and the file name were not the same you must change the file name Update procedure 1 Plug in the AC power cord 2 Press button on...

Страница 21: ...ndary circuit and service it if defective Check the presence that the primary component is leaking or shorted and service it if defective Check the presence that the rectifying diode or circuit is sho...

Страница 22: ...of Q605 Check D634 and their periphery circuit and service it if defective Replace Q605 Is approximately 7 5V voltage supplied to the collector of Q616 No AL 7 5V is not outputted FLOW CHART NO 7 Yes...

Страница 23: ...10V voltage supplied to the anode of D613 Is approximately 10V voltage supplied to the base of Q611 Yes Is approximately 13V voltage supplied to the base of Q615 No Check D664 and their periphery circ...

Страница 24: ...C614 and their periphery circuit and service it if defective Check D612 D620 C613 and their periphery circuit and service it if defective Check Q607 Q610 D639 P ON H2 line and their periphery circuit...

Страница 25: ...RGB input Are the video signals outputted to the specific terminal Check the luminance signal line and service it if defective Check the chrominance signal line and service it if defective Check the R...

Страница 26: ...is not outputted normally Audio input terminals FLOW CHART NO 20 Check the line between Pin 16 18 of CN403 and Pin 4 5 of TU10 and TU10 Tuner Unit and service it if defective Are the DIF signals outpu...

Страница 27: ...P ON H1 PROTECT1 P ON H2 P ON H1 AH2 CN102A CN403 CN3703 AH27 BACKLIGHT ADJ IC3102 SERIAL FLASH MEMORY CLOCK DATA IN D11 B10 6 5 E23 TUNER CLK TUNER DATA CN403 CN3703 CN402 CN3701 SPI CLK SPI WR DATA...

Страница 28: ...OUT2 4 DIF OUT1 5 TUNER UNIT IF AGC 6 CN403 CN3703 DIF OUT2 16 16 IF AGC 20 20 DIF OUT1 18 18 VIDEO IN RGB VIDEO IN VIDEO OUT VIDEO R VIDEO G VIDEO B TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM S VIDEO Y...

Страница 29: ...HONE DET 2 2 CN3703 CN403 AMP L OUT 10 10 AMP R OUT 8 8 AUDIO MUTE 12 12 TO SYSTEM CONTROL BLOCK DIAGRAM WF7 RGB AUDIO L OUT 6 6 RGB AUDIO R OUT 7 7 8 IC801 AUDIO AMP IC3802 OP AMP 1 9 MUTE CONTROL CN...

Страница 30: ...S D0 TMDS D1 TMDS D1 TMDS D2 TMDS D2 TMDS CLOCK TMDS CLOCK SDA SCL F2 F1 G2 G1 H2 H1 E2 E1 AG10 AJ8 B1 B2 C1 C2 D1 D2 A1 A2 AF10 AE11 TMDS CLOCK TMDS CLOCK DEMODULATOR MPEG DECODER DEMODU ADC DAC AUDI...

Страница 31: ...3 Q1024 Q1600 T1700 DRIVE Q1005 Q1007 Q1008 DRIVE OSC PWM CONTROL LOGIC VCC DTC CURRENT CONTROL SWITCH CURRENT CONTROL SWITCH Q1700 CURRENT CONTROL SWITCH 11 8 5 6 15 3 4 12 VREF 14 16 2 1 SW SW 7 5V...

Страница 32: ...circuit to fail HOT COLD MAIN CBA HOT CIRCUIT BE CAREFUL Q602 SWITCHING CONTROL 1 4 3 2 IC605 T601 3 LINE FILTER L601 AC601 AC CORD BRIDGE RECTIFIER D602 D604 D605 D607 1 2 16 15 14 13 12 11 10 9 5 6...

Страница 33: ...itute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock fire or other hazards Notes 1 Do not use the part number shown on these drawing...

Страница 34: ...ed 2 To maintain original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Volt...

Страница 35: ...table power supply circuit is used in this 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...

Страница 36: ...10 4 A0C72SCM2 Main 2 Schematic Diagram...

Страница 37: ...10 5 A0C72SCM3 Main 3 Schematic Diagram...

Страница 38: ...10 6 A0C72SCM4 Main 4 Schematic Diagram...

Страница 39: ...10 7 A0C72SCF Function Schematic Diagram...

Страница 40: ...10 8 Jack Schematic Diagram A0C72SCJ...

Страница 41: ...Main 1 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic D...

Страница 42: ...l Main 2 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic...

Страница 43: ...l Main 3 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic...

Страница 44: ...l Main 4 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic...

Страница 45: ...l Main 5 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic...

Страница 46: ...l Main 6 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic...

Страница 47: ...l Main 7 Schematic Diagram The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into six and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic...

Страница 48: ...3 3V J226 C1602 J227 C1603 D1003 JS400 C1604 D1004 POW for 1 1V J229 R311 C1605 D1005 D1006 R1002 CN103 D1007 D660 R1004 R1005 P ON 5V J230 SP L J231 GND J234 D1010 D1011 CN301 VDACOUT1 J236 D1012 15V...

Страница 49: ...07 Q609 D510 D511 L405 Q801 L406 Q802 L407 D513 Q803 L408 Q610 Q804 Q611 Q612 Q613 Q614 Q615 BC401 L601 BC402 Q616 BC601 BC602 BC603 BC604 BC605 BC801 BC802 D151 J1001 J1002 INV 33V J1003 J1004 J1005...

Страница 50: ...10 18 Jack CBA Function CBA Top View Function CBA Not Used Jack CBA BA0C70F01021...

Страница 51: ...10 19 Jack CBA Function CBA Bottom View BA0C70F01021 Function CBA Not Used Jack CBA...

Страница 52: ...tic Diagram S VIDEO Y S VIDEO Y 0 2V 0 2V 20 20 s S VIDEO C S VIDEO C 0 2V 0 2V 20 20 s VIDEO Y VIDEO Y 0 2V 0 2V 20 20 s 20 20 s VIDEO Pr VIDEO Pr 0 2V 0 2V 20 20 s VIDEO Pb VIDEO Pb 0 2V 0 2V 20 20...

Страница 53: ...Pin 26 of CN404 AUDIO L AUDIO L 0 5V 0 5V 0 5m 0 5ms WF7 Pin 22 of CN401 20 20 s VIDEO G VIDEO G 0 5V 0 5V 20 20 s VIDEO R VIDEO R 0 5V 0 5V 20 20 s Input PAL Color Bar Signal with 1kHz Audio Signal W...

Страница 54: ...12 14 8 10 15 13 11 9 7 3 5 6 2 1 4 HEADPHONE L RGB AUDIO L OUT RGB AUDIO R OUT GND RGB AUDIO R IN RGB AUDIO L IN NU GND NU GND GND NU NU COM AUDIO R AUDIO R COM AUDIO L GND AUDIO L GND GND S VIDEO Y...

Страница 55: ...9 L3 L3 L3 B1 B18 B9 X3301 B9 L19 B7 L3 A17 A16 B23 L13 B12 L13 L13 L3 L3 B4 L1 L1 L1 L3 B14 A1 L8 L1 L1 A5 B8 A14 L8 B8 A3 See Electrical Parts List for parts with this mark Digital Main CBA Unit AC6...

Страница 56: ...13 2 A0C70_71PEX Packing S4 S5 S3 Tape Packing Tape Packing Tape Packing Tape S6 L17 X1 Some Ref Numbers are not in sequence Stand Assembly X3 X4 FRONT FRONT X2 1 X2 2 S1 S2 Tape...

Страница 57: ...0 101 CL303 WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WX1A94F0 101 CL401 WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WX1A94F0 101 CL404 WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WX1A94F0 101 CL801 WIRE ASSEMBLY 2PIN 2PIN 10...

Страница 58: ...1608 Z Y5V 0 1 F 50V CHD104EYA036 C301 ELECTROLYTIC CAP 47 F 25V M or CE1EMASDL470 CAP ELE 47 F 25V M 85 or CED470KSN001 CAP ELE 47 F 25V M 85 CED470TEP001 C302 CHIP CERAMIC CAP 1608 B K 0 1 F 16V CH...

Страница 59: ...C CAP 1000 F 25V M or CE1EMZPDL102 Ref No Mark Description Part No ELECTROLYTIC CAP 1000 F 25V M or CE1EMZNDL102 CAP ELE 1000 F 25V M 85 or CED102KSN002 CAP ELE 1000 F 25V M 85 CED102TEP002 C614 ELECT...

Страница 60: ...C1004 CHIP CERAMIC CAP 1608 F Z 0 1 F 50V or CHD1JZ30F104 Ref No Mark Description Part No CAP CHIP 1608 Z Y5V 0 1 F 50V CHD104EYA036 C1005 CHIP CERAMIC CAP 1608 B K 0 1 F 50V or CHD1JK30B104 CAP CHIP...

Страница 61: ...HC06JG029 CONNECTOR PRINT OSU JS 1125 06 K J3JT06CHY001 CN103 FFC CONNECTOR IMSA 9615S 11A PP A or JC96J11ER007 CONNECTOR PRINT MES 00 6232 011 006 800 or JC62G11UG026 CONNECTOR PRINT MES 11 S 1 0 11...

Страница 62: ...DTA0HZS8R2N Ref No Mark Description Part No D631 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 DIODE SWITCHING HSS4148TE E or QDTZ0HSS4148 DIODE SWITCHING 1N4148 F0021 NDTZ01N4148F D632 SWITCHING DIODE...

Страница 63: ...DIODE SWITCHING 1N4148 F0021 NDTZ01N4148F D1556 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 DIODE SWITCHING HSS4148TE E or QDTZ0HSS4148 DIODE SWITCHING 1N4148 F0021 NDTZ01N4148F D1557 SWITCHING DIODE...

Страница 64: ...or NQS4KTC3198P Ref No Mark Description Part No TRANSISTOR 2SC1815 Y TE2 F T or QQSY2SC1815F TRANSISTOR 2SC1815 GR TE2 F T or QQS12SC1815F NPN TRANSISTOR 2SC5343Y AT or NQSY02SC5343 NPN TRANSISTOR 2S...

Страница 65: ...FREE KTC2026 Y P or NQEYKTC2026P NPN TRANSISTOR STC403 NQEZ00STC403 Q617 TRANSISTOR KTC3198 Y AT P or NQSYKTC3198P TRANSISTOR KTC3199 GR AT P or NQS4KTC3199P Ref No Mark Description Part No TRANSISTO...

Страница 66: ...2SC4154 T111 1G or QQ1G02SC4154 NPN TRANSISTOR SMD 2SC5343UFO or NQ102SC5343U NPN TRANSISTOR SMD 2SC5343UFY or NQ1Y2SC5343U NPN TRANSISTOR SMD 2SC5343UFG or NQ1G2SC5343U NPN TRANSISTOR SMD 2SC5343UFL...

Страница 67: ...S CHIP 1608 1 10W J 1 0k RRXA102YF002 R306 CHIP RES 1 10W J 100k or RRXAJR5Z0104 RES CHIP 1608 1 10W J 100k RRXA104YF002 Ref No Mark Description Part No R307 CHIP RES 1608 1 10W 0 or RRXAZR5Z0000 RES...

Страница 68: ...8 1 10W 0 or RRXAZR5Z0000 Ref No Mark Description Part No RES CHIP 1608 1 10W J 0 RRXA000YF002 R601 GLASS GLAZE RES 1 2W J 3 3M or RXX2JZLZ0335 RES CARBON FILM J 1 2W J 3 3M RCX2335T1003 R602 CEMENT R...

Страница 69: ...5Z2701 RES CHIP 1608 1 10W F 2 70k RTW2701YF002 R668 CHIP RES 1 10W F 2 7k or RRXAFR5H2701 Ref No Mark Description Part No CHIP RES 1608 1 10W F 2 7k or RRXAFR5Z2701 RES CHIP 1608 1 10W F 2 70k RTW270...

Страница 70: ...10W F 5 60k RTW5601YF002 R1009 CHIP RES 1608 1 10W F 75k or RRXAFR5H0753 Ref No Mark Description Part No CHIP RES 1 10W F 75k or RRXAFR5Z0753 RES CHIP 1608 1 10W F 75 0k RTW7502YF002 R1012 WIRE CP STP...

Страница 71: ...S CHIP 1608 1 10W J 10 RRXA100YF002 R1501 CHIP RES 1 10W J 10 or RRXAJR5Z0100 Ref No Mark Description Part No RES CHIP 1608 1 10W J 10 RRXA100YF002 R1502 CHIP RES 1 10W J 12k or RRXAJR5Z0123 RES CHIP...

Страница 72: ...LLOW 01 RCA 101HF YL JXRJ01YUQ011 JK404 JACK RCA PCB S WHITE 01 RCA 101H WH or JXRJ010YUQ02 JACK RCA PCB S WHITE 01 MTJ 032 04B 41 FE or JXRJ010LY031 JACK RCA PCB S WHITE 01 RCA 101HF WH JXRJ01YUQ008...

Страница 73: ...A000YF002 JS452 CHIP RES 1608 1 10W 0 or RRXAZR5Z0000 RES CHIP 1608 1 10W J 0 RRXA000YF002 Ref No Description Part No Ref No Description Part No FUNCTION CBA Consists of the following CAPACITORS C105...

Страница 74: ...ACT SWITCH KSMC632A SST0101HH025 SW106 TACT SWITCH SKHHLMA010 or SST0101AL049 TACT SWITCH KSMC632A SST0101HH025 MISCELLANEOUS JS902 CHIP RES 1608 1 10W 0 or RRXAZR5Z0000 RES CHIP 1608 1 10W J 0 RRXA00...

Страница 75: ...LH850 M22 LH851 M22 A0C72EP A0C73EP 2010 07 31...

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