Emerson EWL20S5 Manuale di Servizio

SERVICE MANUALThis service manual is for the EWL20S5 version B model, which is different from the original EWL20S5 and the EWL20S5 version A model. Fo

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 L2601DCCABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for the cabinet parts, and the CBA i

4-2 L2601DCFig. D1[1] Rear CabinetS-1S-3S-1S-1S-1S-1S-2S-1S-1S-1Fig. D2S-9S-9S-11S-11Speaker HoldersS-10S-8S-8S-8S-8S-8S-8S-6S-6S-5S-4S-7S-7S-7S-7S-4S

4-3 L2601DCTV Cable Wiring DiagramFig. D3IR Sensor CBATo LCD ModuleCN310To SpeakerFunction CBACLN104CN801To SpeakerCN1202CLN105CN1207CN1206CN1205To LC

5-1 L2601EAELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: “CBA” is abbreviation for “Circuit Board Assembly.”Note: Electrical adjustments are require

5-2 L2601EA2. Flicker Adjustment1. Enter the Service mode. (See page 5-1.)2. Press [2] button on the remote control unit. The following screen appears

5-3 L2601EAThe 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 L3103INTHOW TO INITIALIZE THE LCD TELEVISIONHow to initialize the LCD television:1. Turn the power on. (Use main power on the TV unit.)2. To enter

7-1BLOCK DIAGRAMSSystem Control Block DiagramL2601BLSFUNCTION CBAKEY-IN-122CLN104KEY SWITCHKEY-IN-211BACKLIGHT-ADJKEY SWITCHIC1202 (TV MICRO CONTROLLE

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

7-2 L2601BLIFIF/Video Block DiagramTO AUDIOBLOCK DIAGRAMTOLCD BLOCKDIAGRAMTOLCD BLOCKDIAGRAMINPUT-0(INV)INPUT-1(INV)SAWFILTERTU1SF11IFAGCSDASCL1732SIF

7-3Audio Block DiagramL2601BLAMAIN CBAAUDIO SIGNALAUDIO-MUTEVOLUMETO SYSTEM CONTROL BLOCKDIAGRAMINPUT-0(INV)INPUT-1(INV)SCLSDAIC852 (INPUT SELECT)SW C

7-4LCD Block DiagramL2601BLLCDCN1206TOIF/VIDEOBLOCKDIAGRAMOR(0)24OR(1)23MAIN CBAVIDEO SIGNALCVBSS-VIDEO-CIC1202 (LCD DRIVE / SIGNAL PROCESS)705275S-VI

7-5Power Supply Block DiagramL2601BLP4A/125VF6014A/125VLINEFILTERL601AC601AC CORDBRIDGERECTIFIERD605 - D608HOT COLDT601121316141144312IC601ERRORVOLTAG

7-6LCD Backlight Block DiagramL2601BLLBCURRENTCONTROLSWITCHQ321Q324T301CN301LCD MODULEINVERTER CBABACKLIGHTBACKLIGHTBACKLIGHTOVER VOLTAGEPROTECTORQ322

8-1 LC4N_SCSCHEMATIC DIAGRAMS / CBA'S AND TEST POINTSStandard NotesMany electrical and mechanical parts in this chassis have special characterist

8-2 LC4N_SCLIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:1. CAUTION:CAUTION: FOR CONTINUED PROTECTION AGAI

8-3Main 1/5 Schematic DiagramL2601SCM1

8-4L2601SCM2Main 2/5 Schematic Diagram

8-5Main 3/5 Schematic DiagramL2601SCM3

1-1 L2500SPSPECIFICATIONS< TUNER >ANT. Input ---------------------- 75 ohm Unbal., F typeReference Level--------------- 20 Vp-p (LCD Green Catho

8-6L2601SCM4 Main 4/5 Schematic Diagram

8-7L2601SCM5 Main 5/5 Schematic DiagramCAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F60

8-8L2601SCF Function Schematic Diagram

8-9L2601SCIRIR Sensor Schematic Diagram

8-10L2601SCI Inverter Schematic Diagram

8-11PIN 75 OFIC1202WF8PIN 77 OFIC1202WF10PIN 70 OFIC1202WF7PIN 62 OFIC1202WF12PIN 57 OFIC1202WF11PIN52 OFIC1202WF9BL2500F01011-1Main CBA Top ViewCAUTI

8-12PIN 27 OFCN1206WF3PIN 28 OFCN1206WF4PIN 26 OFCN1206WF5PIN 2 OFCN1206WF1PIN 14 OFIC801WF6PIN 7 OFCN1205WF2Main CBA Bottom ViewBL2500F01011-1For co

8-13Function CBA Top ViewFunction CBA Bottom ViewBL2601F01031-1IR Sensor CBATop ViewIR Sensor CBABottom ViewBL2601F01031-2

8-14Inverter CBA Top ViewBL2500F01021Inverter CBA Bottom View

WAVEFORMSL2500WF9-11DIV: 1.0V 10 s1DIV: 1.0V 20sPin 2 of CN1206WF1 1DIV: 1.0V 10sPin 26 of CN1206WF5Input: NTSC Color Bar Signal (with 1kHz Audi

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

WIRING DIAGRAML2601WI10-1LCD MODULETU1 TUNER UNITVIDEO -Y INAUDIO1(R)-INAUDIO2(L)-IN S-VIDEO INVIDEO -Pb/Cb INVIDEO -Pr/Cr INVIDEO1-INAUDIO1(L)-IN

11-1 L2601CEXEXPLODED VIEWSCabinetCL1207CL1206CL1205B22B7A6A1B6B6B6B6A2A3L22L22B4LCD1L9L14L14L14L14L16L16L14L14A9L9L23L9L9L9L9L9L9A4B3B12B21B21B21L14L

11-2 L2601PEXPackingS1FRONTS2S5S4TapePacking TapePacking TapePacking TapeS3S3S6X1X5X3Some Ref. Numbers are not in sequence.X2Packing Tape

20060428 12-1 L2601CAMECHANICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repla

20060428 13-1 L2601ELELECTRICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repla

20060428 13-2 L2601ELC819 CHIP CERAMIC CAP. B K 2200pF/50V CHD1JK30B222C820 CHIP CERAMIC CAP. B K 2200pF/50V CHD1JK30B222C853 ELECTROLYTIC CAP. 2.2µF/

20060428 13-3 L2601ELD624# ZENER DIODE MTZJT-7733B QDTB00MTZJ33D631# SCHOTTKY BARRIER DIODE ERC84-009 QDLZERC84009D632# DIODE FR154 NDLZ000FR154D633#

20060428 13-4 L2601ELR414 CARBON RES. 1/4W J 680 Ω RCX4JATZ0681R415 CARBON RES. 1/4W J 33 Ω RCX4JATZ0330R416 CARBON RES. 1/4W J 33 Ω RCX4JATZ0330R417

20060428 13-5 L2601ELR822 CARBON RES. 1/4W J 22k Ω RCX4JATZ0223R823 CHIP RES. 1/10W J 22k Ω RRXAJR5Z0223R824 CHIP RES. 1/10W J 22k Ω RRXAJR5Z0223R825

20060428 13-6 L2601ELINVERTER CBAR1363 CHIP RES. 1/10W J 10k Ω RRXAJR5Z0103R1364 CHIP RES. 1/10W J 10k Ω RRXAJR5Z0103R1365 CHIP RES.(1608) 1/10W 0 Ω R

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

20060428 13-7 L2601ELANALOG KEY CBAFUNCTION CBAD361 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133D362 SWITCHING DIODE 1SS133(T-77) QDTZ001SS133D363 SWITCH

20060428 13-8 L2601ELIR SENSOR CBASW62 TACT SWITCH SKQSAB SST0101AL038SW63 TACT SWITCH SKQSAB SST0101AL038SW64 TACT SWITCH SKQSAB SST0101AL038SW65 TAC

EWL20S5L2601UB2006-05-29

SERVICE MANUALModel EWL20S5 has non-A, A, B and C version types. For the C version model, suffix C is printed to the model number as EWL20S5 C on the

Different parts from the B version model (EWL20S5)Ref. No. Description Part No.MECHANICAL PARTSA6# RATING LABEL L2621UB ----------LCD1 LCD MODULE ASSE

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

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