Emerson EWT19S2 Manuel de service

19” COLOR TELEVISIONSERVICE MANUALEWT19S2

3-3 L6115STA2. Installation(1) Using desoldering braid, remove the solder fromthe foil of each pin of the flat pack-IC on the CBAso you can install a

4-1 L6118DCCABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for thecabinet parts, and the CBA in

4-2 L6118DCS-1S-1[1] Rear CabinetS-3Fig. 1S-1S-1S-1[1] Rear CabinetS-1S-1Front CabinetControl PlateS-3Fig. 2Control PlateFront Cabinet[3] Main CBAFig.

4-3 L6118DCTV Cable Wiring DiagramCN691ANODECN801CN802CLN801SP801L691 DEGAUSSING COILMAIN CBAFLYBACK TRANSFORMERT571AC601AC CORDTU1TUNERWH501BFig. 5JK

5-1 L6118EAELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: "CBA" is abbreviation for "Circuit Board Assem-bly."NOTE:Electrical adj

5-2 L6118EA3-1. Setting for 7F and FRENCH Data ValuesGeneral 1. Enter the Service mode. (See page 5-1) 2. Press "VOL p" button on the Servi

5-3 L6118EA4. H fo AdjustmentPurpose: To get correct horizontal frequency.Symptom of Misadjustment: . If H f0 adjustment is incorrect, skew distortion

5-4 L6118EA8. C-Trap AdjustmentPurpose: To get minimum leakage of the color signal carrier.Symptom of Misadjustment: If C- Trap Adjustmentis incorrect

5-5 L6118EA10. V. Position AdjustmentPurpose: To obtain correct vertical height of screenimage.Symptom of misadjustment: If V. Position is incor-rect,

5-6 L6118EA12. Cut-off AdjustmentPurpose: To adjust the beam current of R, G, B, andscreen voltage.Symptom of Misadjustment: White color may bereddish

IMPORTANT SAFETY NOTICEProper service and repair is important to the safe, reliable operation of allFunai Equipment. The service procedures recommende

5-7 L6118EA14. Sub-Brightness AdjustmentPurpose: To get proper brightness.Symptom of Misadjustment: If Sub-Brightness isincorrect, proper brightness c

5-8 L6118EA17. Convergence AdjustmentPurpose: To obtain proper convergence of red, greenand blue beams.Symptom of Misadjustment: If Convergence Adjust

L6118BLIFBLOCK DIAGRAMS6-1 6-23465192043242122232763645926X3443.58MHzWH301A TO WH301BFBPH-DRIVEACL/ABL4.5MHzBPFCF302SAWFILTERKEYSWITCHSF1IC333 VIDEO/A

Audio/Power Control Block DiagramMAIN CBAAUDIO SIGNAL6-3 6-4LIMITERFM DETAFAMPIC802 IC333 (R-CH AUDIO AMP)Q825Q411JK801HEADPHONEJACKNOTE FOR WIRE CO

748611109V-DRIVEPROTECT-1V.RAMP NFH-DRIVEGREEN AMPBLUE AMPQ501Q503Q572 Q571T5721345L6118BLCRTFBPACL/ABLCRT/H.V. Block DiagramV-DRIVEH-DRIVEDY551 D.Y.I

4A/125VF6014A/125VLINEFILTERL601AC601AC CORDDEGAUSSINGCOILDG691CN691PS691BRIDGERECTIFIERD605 - D608HOT COLDT60121 1191074312IC601ERRORVOLTAGE DETQ601Q

7-1 L6115SCSCHEMATIC DIAGRAMS / CBA'S AND TEST POINTSStandard NotesMany electrical and mechanical parts in this chassis have special characterist

7-2 L6115SCLIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ONTHE FOLLOWING PAGES: 1.CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE

A1A2A3A4A5B1B2B3B4B5C1C2C3C4C5D1D2D3D4D5E1E2E3E4E5F1F2F3F4F5G1G2G3G4G5IF SIGNALVIDEO SIGNALAUDIO SIGNAL7-3L6118SCM1Main 1/3 Schematic Diagram7-4 7-5

H1H2H3H4H5I1I2I3I4I5J1J2J3J4J5K1K2K3K4K5L1L2L3L4L5M1M2M3M4M5N1N2N3N4N5VIDEO SIGNALMain 2/3 & CRT Schematic Diagram7-6L6118SCM2NOTE :The voltage fo

1-1 L6115SPSPECIFICATIONS<TUNER>ANT. Input ------------------ 75ohm Unbal., F typeReference Level ----------- 20Vp-p (CRT Green Cathode)Test In

O3O2O1P3P2P1Q3Q2Q1R3R2R1AUDIO SIGNALMain 3/3 Schematic DiagramL6118SCM3MAIN 3/3Ref No. PositionIC801P-3IC802Q-3Q825 P-1Q831R-2Q832R-2Q833Q-1CN801O-2CN

Q501BaseWF3Q501CollectorWF15Q503BaseWF5Q503CollectorWF13Q502BaseWF4Q502CollectorWF14TP501GNDTP1502BLUE7-11BL6118F01011-27-12CRT CBA Top ViewCRT CBA Bo

+BTP601FOCUS-VR(UPPER SIDE)SCREEN-VR(LOWER SIDE)+B ADJVR661TP301AGCGNDTP3007-137-147-15 BL6118F01011-1 Main CBA Top ViewCAUTION !Fixed voltage power s

Q571BaseWF8PIN 1OF CN571WF9PIN 4OF CN571WF12PIN 3OF WH501AWF10PIN 54OF IC333WF56PIN 41OF IC333WF1PIN 31OF IC333WF2Q572CollectorWF7PIN 7OF IC551

10 V 5 ms1DIV: 0.5V 20µsecIC 333 Pin 41WF1GND1DIV: 0.5V 20µsecIC 333 Pin 31WF21DIV: 0.1V 0.2msecQ377 EmitterWF61DIV: 200V 20µsecCN 571 Pin 1WF

WIRING DIAGRAMCRT CBABL6118F01011-2FOCUSSCREENGNDD.Y.DY551HDVDMAIN CBABL6118F01011-1WH301ACN50112CN691CLN551CLN501CLN301CLN801AC6015432112345CN5711234

10-1 L6118PINIC PIN FUNCTIONSIC111(TV Micro Computer)Pin No.Signal Name Function1 N.U. Not Used2 VOLUME Volume PWM Output3EXT-H Ext-H4 N.U. Not Used5

B-2B-2B-11B-11B-2B-2B-5B-5B-1L-8L-8L-8L-9L-8L-8A-4A-2V501-1DY551Details for DY551 and surrounding partsSHINWHA TAPE SGT-730(WHITE)SHINWHA TAPE SGT-730

PackingX-5TAPEX-2X-1X-3S-4S-5PACKING TAPEFRONTS-2Some Ref. Numbers are not in sequence.S-3S-3S-1S-6S-2X-911-3 L6115PEX

20020426 12-1 L6118CAMECHANICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a# have special characteristics important to safety.Before replaci

2-1 L6115IMPIMPORTANT SAFETY PRECAUTIONSPrior to shipment from the factory, our products are strictly inspected for recognized product safety and elec

20020426 12-2 L6118CATable 1 (V501 and DY551 Combination)Note 1: Purity and Convergence Adjustments must beperformed following CRT replacement. Refer

20020426 13-1 L6118ELELECTRICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a# have special characteristics important to safety.Before replaci

20020426 13-2 L6118ELC386 CERAMIC CAP.(AX) B K 0.047µF/50V CA1J473TU011C387 CERAMIC CAP.(AX) B K 0.047µF/50V CA1J473TU011C391 CERAMIC CAP.(AX) F Z 0.1

20020426 13-3 L6118ELELECTROLYTIC CAP. 1000µF/35V M CE1GMZADL102C667 ELECTROLYTIC CAP. 1µF/50V M or CE1JMASTL1R0ELECTROLYTIC CAP. 1µF/50V M or CE1JMAS

20020426 13-4 L6118ELD593# ZENER DIODE MTZJT-7736B or QDTB00MTZJ36# ZENER DIODE DZ-36BSBT265 NDTB00DZ36BSD595 SWITCHING DIODE 1SS133(T-77) or QDTZ001S

20020426 13-5 L6118ELTRANSISTOR 2SC2785(H) or QQSH02SC2785TRANSISTOR 2SC2785(J) or QQSJ02SC2785TRANSISTOR KTC3199(GR) or NQS10KTC3199TRANSISTOR KTC319

20020426 13-6 L6118ELR311 CARBON RES. 1/4W J 2.7k Ω RCX4JATZ0272R314 CARBON RES. 1/4W J 100 Ω or RCX4JATZ0101CARBON RES. 1/6W J 100 Ω RCX6JATZ0101R315

20020426 13-7 L6118EL# CEMENT RESISTOR 5W J 1.2 Ω or RW051R2Y4001# CEMENT RES. 3W K 1.2 Ω RW031R2PG007R602 CARBON RES. 1/4W J 820k Ω RCX4JATZ0824R603

20020426 13-8 L6118ELCRT CBABC101 BEAD INDUCTORS FBR07HA121TB-00 LLBF00ZTU021BC102 BEAD INDUCTORS FBR07HA121TB-00 LLBF00ZTU021BC571 BEAD INDUCTORS FBA

20020426 13-9 L6118ELCLN501 PARALLEL WIRE 3P WX1L1114-101JK501# CRT SOCKET ISMS02S JSCC220PK003Ref. No. Description Part No.

2-2 L6115IMPing is performed that involves B+, horizontal de-flection or high voltage. Correct operation of the X-radiation protection circuits also m

Printed in Japan2002-05-24 HOEWT19S2 L6118UU

2-3 L6115IMPPrecautions during Servicing A.Parts identified by the ( # ) symbol are critical forsafety.Replace only with part number specified. B.In a

2-4 L6115IMPSafety Check after ServicingExamine the area surrounding the repaired locationfor damage or deterioration. Observe that screws,parts and w

3-1 L6115STASTANDARD NOTES FOR SERVICINGCircuit Board Indications a. The output pin of the 3 pin Regulator ICs is indicat-ed as shown. b. For other IC

3-2 L6115STAWith Soldering Iron:(1) Using desoldering braid, remove the solder fromall pins of the flat pack-IC. When you use solderflux which is appl