Emerson LC320EM9 3 Manual de Serviço Página 1

SERVICE MANUALTMEMERSON AND THE G-CLEF LOGO ARE REGISTERED TRADEMARKSOF EMERSON RADIO CORP., PARSIPPANY, NEW JERSEY, U.S.A.32″ COLOR LCD TELEVISIONLC3

3-2 TVN_SN3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the

3-3 TVN_SNWith Iron Wire:1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to

3-4 TVN_SNInstructions for Handling Semi-conductorsElectrostatic breakdown of the semi-conductors may occur due to a potential difference caused by el

4-1 A8AF1DCCABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for the cabinet parts, and the CBA i

4-2 A8AF1DC[4] Rear Cabinet[2] Stand Cover[3] Stand Hinge[1] Stand Base Plate(S-2)(S-4)(S-4)(S-6)(S-4)(S-5)(S-3)(S-4)(S-1)(S-4)(S-3)(S-6)Fig. D1

4-3 A8AF1DC[6] Shield Box[7] Digital MainCBA Unit(S-12)(S-12)(N-1)(S-8)(S-7)[8] Power Supply CBA(S-7)(S-11)(S-10)[5] Shield (T)(S-12)(S-11)(S-10)(S-9)

4-4 A8AF1DC[9] Inverter CBA(S-13)(S-14)[11] PCB Holder (L,R)(S-16)(S-14)(S-14)(S-14)[10] Junction-B CBADesolder[12] Stand Holder(S-15)(S-13)(S-13)Fig.

4-5 A8AF1DC[13] LCD Module Assembly[15] IR SensorCBA[16] FunctionCBA[18] Speaker [17] SpeakerHolder (L,R) [17] SpeakerHolder (L,R) [19] Front Cabinet(

4-6 A8AF1DCTV Cable Wiring DiagramCN301 CN302 CN303CN3601 CN3701CN4501 CN4502CN3704CL1000ACN501AC CORDFunction CBAPower SupplyCBADigital Main CBA Unit

5-1 A8AF0EAELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: “CBA” is abbreviation for “Circuit Board Assembly.”Note: Electrical adjustments are require

IMPORTANT SAFETY NOTICEProper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommend

5-2 A8AF0EA1. Purity Check ModeThis mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.1. Enter th

5-3 A8AF0EAThe following adjustment normally are not attempted in the field. Only when replacing the LCD Panel then adjust as a preparation.3. White B

6-1 A8AF0INTHOW TO INITIALIZE THE LCD TELEVISIONHow to initialize the LCD television:1. Turn the power on.2. To enter the service mode, press the serv

7-1BLOCK DIAGRAMSSystem Control Block DiagramA8AF1BLSLED1KEY SWITCHIC3101(SUB MICRO CONTROLLER)IC3301(MAIN MICRO CONTROLLER)3RESETXOUTXINX31014MHzOSCD

7-2 A8AF1BLVVideo Block DiagramVIDEO SIGNALIC7001 (VIDEO SELECTOR)DIGITAL MAIN CBA UNITCN302 CN3701VIDEO23TO DIGITALSIGNAL PROCESSBLOCK DIAGRAMAUDIO S

7-3Audio-1 Block DiagramA8AF1BLA1AUDIO SIGNALIC7001(AUDIO SELECTOR)AUDIO(L)-IN1AUDIO(R)-IN1Q7302Q7301JK7702COMPONENTAUDIO(L)-IN1COMPONENTAUDIO(R)-IN1H

7-4Audio-2 Block DiagramA8AF1BLA248 50IC801 (AUDIO POWER AMP)2518,918,1944,4534,35MUTE/STANDBYCONTROLCN801CL801SP801SPEAKERL-CHCN802SP(R)-1CL802SP802S

7-5Digital Signal Process Block DiagramA8AF1BLDDIGITAL MAIN CBA UNITIC4202 (MEMORY)IC3301 (DIGITAL SIGNAL PROCESS)IC4201(LCD DRIVE)LCD MODULEASSEMBLYC

7-6Inverter Block DiagramA8AF1BLINVBACKLIGHT1212121212INVERTER CBALCD MODULEASSEMBLYCN1050CN1100CN1150CN1200CN1250ISVSOVPCL1000A PROTECT31BACKLIGHT-AD

7-7Power Supply Block DiagramA8AF1BLPHOTHOTCOLDPOWER SUPPLY CBAINVERTER CBAHOT CIRCUIT. BE CAREFUL.Q602SWITCHINGCONTROL143 2IC603T601CN601TO INVERTERB

1-1 A8AF0SPSPECIFICATIONS< TUNER / NTSC >ANT. Input ---------------------- 75 Ω Unbal., F type< TUNER / ATSC >< LCD PANEL >< VIDE

8-1 A8AF0_SCSCHEMATIC DIAGRAMS / CBA’S AND TEST POINTSStandard NotesWARNINGMany electrical and mechanical parts in this chassis have special character

8-2 A8AF0_SCLIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:1. CAUTION:CAUTION: FOR CONTINUED PROTECTION AGA

8-3A8AF1SCP1NOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.Power Supply 1/3 Schematic DiagramCN30113.323.233.

8-4A8AF1SCP2Power Supply 2/3 Schematic DiagramCN3031---2032.642.6506---708092.010 011 1.712 0.813 014 ---15 4.916 4.917 018 3.319 020 1.621 022 1.623

8-5A8AF1SCP3Power Supply 3/3 Schematic DiagramCN30213.42033.443.35061.771.681.391.710 1.711 012 3.413 0.614 2.515 016 2.617 2.518 019 020 021 022 023

8-6A8AF1SCINVInverter & Junction-B Schematic DiagramCAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

8-7A8AF1SCFFunction Schematic Diagram

8-8A8AF1SCIRIR Sensor & Junction-A Schematic Diagram

8-9A8AF1SCD1Digital Main 1/4 Schematic Diagram1 NOTE:The order of pins shown in this diagram is different from that of actual IC3301.IC3301 is divided

8-10A8AF1SCD2Digital Main 2/4 Schematic Diagram1 NOTE:The order of pins shown in this diagram is different from that of actual IC3301.IC3301 is divide

1-2 A8AF0SP< AUDIO >All items are measured across 8 Ω load at speaker output terminal with L.P.F. Note: Nominal specifications represent the des

8-11Digital Main 3/4 Schematic DiagramA8AF1SCD31 NOTE:The order of pins shown in this diagram is different from that of actual IC3301.IC3301 is divide

8-12Digital Main 4/4 Schematic DiagramA8AF1SCD41 NOTE:The order of pins shown in this diagram is different from that of actual IC3301.IC3301 is divide

8-13BA8AF0F01022-1Power Supply CBA Top ViewNOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.Because a hot chass

8-14PIN 17 OFCN302WF6PIN 19 OFCN302WF2PIN 14 OFCN302WF4PIN 16 OFCN302WF5PIN 21 OFCN302WF3PIN 23 OFCN302WF1PIN 3 OFCN303WF7Power Supply CBA Bottom Vie

8-15BA8AF0F01031Inverter CBA Top ViewNOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.CAUTION !Fixed voltage (o

8-16BA8AF0F01031Inverter CBA Bottom ViewNOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.CAUTION !Fixed voltage

8-17BA8AF0F01022-3 BA8AF0F01022-4Function CBA Top ViewFunction CBA Bottom ViewIR Sensor CBA Top ViewIR Sensor CBA Bottom View

8-18BA8AF0F01022-5BA8AF0F01031Junction-A CBATop ViewJunction-A CBABottom ViewJunction-B CBATop ViewJunction-B CBABottom View

WAVEFORMSA8AF0WF9-1Input: NTSC Color Bar Signal (with 1kHz Audio Signal)WF1 ~ WF7 = Waveforms to be observed atWaveform check points.(Shown in Schema

WIRING DIAGRAMA8AF1WI10-1INVERTER CBATU1 TUNER UNITHDMI- AUDIO(L)-IN2HDMI- AUDIO(R)-IN2AC1901AC CORDPOWER SUPPLY CBADIGITAL MAIN CBA UNITHDMI-CONNECT

2-1 LTVN_ISPIMPORTANT SAFETY PRECAUTIONSPrior to shipment from the factory, our products are strictly inspected for recognized product safety and elec

11-1 A8AF1CEXEXPLODED VIEWSCabinetA1B30A4A10A6A9B8L15L2L2L2L2L13L2L17L17B4L13B9See Electrical Parts List for parts with this mark.Digital Main CBA Uni

11-2 A8AF0PEXPackingS16S5S2Packing TapePacking TapeS3S1L15X2X6Some Ref. Numbers are not in sequence.FRONTTapeX5S4X3X4Packing TapeX1Tape

20080213 12-1 A8AF1CAMECHANICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repla

20080213 13-1 A8AF1ELELECTRICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repla

20080213 13-2 A8AF1ELC807 CHIP CERAMIC CAP.(1608) B K 0.47µF/16V CHD1CK30B474C808 CHIP CERAMIC CAP.(1608) B K 0.1µF/50V CHD1JK30B104C809 CHIP CERAMIC

20080213 13-3 A8AF1ELD642 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133D644 DIODE 1ZC43(Q) QDLZ001ZC43QD645 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133D646

20080213 13-4 A8AF1ELR613 CARBON RES. 1/4W J 180 Ω RCX4JATZ0181R620 METAL OXIDE FILM RES. 1W J 1 Ω RN011R0DP003R622 CARBON RES. 1/4W J 1k Ω RCX4JATZ01

20080213 13-5 A8AF1ELFUNCTION CBAIR SENSOR CBAJUNCTION-A CBAMUT CBAINVERTER CBAR7716 CHIP RES. 1/10W J 100 Ω RRXAJR5Z0101R7723 CHIP RES. 1/10W J 75 Ω

20080213 13-6 A8AF1ELC1004 CHIP CERAMIC CAP.(1608) B K 0.01µF/50V CHD1JK30B103C1005 CHIP CERAMIC CAP.(1608) CH J 1000pF/50V CHD1JJ3CH102C1006 CHIP CER

20080213 13-7 A8AF1ELD1162 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133D1163 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133D1164 SWITCHING DIODE 1SS133(T-77)

2-2 LTVN_ISP3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and addi

20080213 13-8 A8AF1ELJUNCTION-B CBAR1118 CHIP RES. 1/10W F 6.8k Ω RRXAFR5H6801R1119 CHIP RES. 1/10W F 6.8k Ω RRXAFR5H6801R1120 CHIP RES. 1/10W J 1M Ω

© 2008 Funai Electric Co., Ltd.All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed, download

2-3 LTVN_ISPPrecautions during ServicingA. Parts identified by the # symbol are critical for safety.Replace only with part number specified.B. In addi

2-4 LTVN_ISPSafety Check after ServicingExamine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and

3-1 TVN_SNSTANDARD NOTES FOR SERVICINGCircuit Board Indications1. The output pin of the 3 pin Regulator ICs is indicated as shown.2. For other ICs, pi