Emerson EWC1303 Manual de Serviço

SERVICE MANUAL13" COLOR TV/VCR COMBINATIONEWC1303AMain SectionI SpecificationsI Preparation for ServicingI Adjustment ProceduresI Schematic Diagr

1-3-1 SFTY_Z13NSTANDARD NOTES FOR SERVICINGCircuit Board Indications1. The output pin of the 3 pin Regulator ICs is indi-cated as shown:2. For other I

1-3-2 SFTY_Z13N2. Removing the leadless componentGrasp the leadless component body with tweezersand alternately apply heat to both electrodes. Whenthe

1-3-3 SFTY_Z13N2. Installationa. Using desoldering braid, remove the solder fromthe foil of each pin of the Flat Pack - IC on the CBA,so you can insta

1-3-4 SFTY_Z13NInstructions for Handling SemiconductorsElectrostatic breakdown of the semiconductors mayoccur due to a potential difference caused by

1-4-1 T5553PFSPREPARATION FOR SERVICINGHow to Enter the Service ModeCaution: 11. Optical sensors system are used for Tape Start andEnd Sensor on this

1-5-1 T5553DCCABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for thecabinet parts and the CBA i

1-5-2 T5553DCS-1[1] REAR CABINETS-1S-2Fig. 1Fig. 2[1] REAR CABINETS-1S-2S-1S-1S-1

1-5-3 T5553DCFig. 3[2] TRAY CHASSIS[3] DECK UNITS-3S-3S-3[4] MAIN CBAS-6S-5 S-4S-6S-6S-6S-7

1-5-4 T5553DCFig. 4S-8S-8S-8S-8ANODE CAP.[5] CRTCRT CBA

1-5-5 T5553DCFig. 5CL502ACL501ASCREENCN505CN801 CN601 CN571FOCUSCRT CBAAC CORDCL403FE HEADCYLINDER ASSEMBLYACE HEADASSEMBLYCAPSTANMOTORDECK UNITMAIN C

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

1-6-1 T5553EAELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: "CBA" is abbreviation for "Circuit Board Assembly."NOTE: Electrical a

1-6-2 T5553EA3-1. H AdjustmentPurpose: To get correct horizontal position and size ofscreen image.Symptom of Misadjustment: Horizontal position andsiz

1-6-3 T5553EA3-3. Y DL Time TV/Y DL Time EXT/Y SW LPF/Black Stretch Off/ Black Stretch CONT/C. Angle AdjustmentPurpose: To get minimum leakage of the

1-6-4 T5553EA4. V. Size AdjustmentPurpose: To obtain correct vertical height of screenimage.Symptom of Misadjustment: If V. Size is incorrect,vertical

1-6-5 T5553EANotes: Screen Control FBT --- MAIN CBA F.B.T= Fly Back Transformer Use the Remote Control Unit1. Degauss the CRT and

1-6-6 T5553EA9. Focus AdjustmentPurpose: Set the optimum Focus.Symptom of Misadjustment: If Focus Adjustment isincorrect, blurred images are shown on

1-6-7 T5553EA13. Convergence AdjustmentPurpose: To obtain proper convergence of red, greenand blue beams.Symptom of Misadjustment: If Convergence Adju

1-7-1BLOCK DIAGRAMSServo/System Control Block DiagramT5553BLSCONTROLHEADCL402 AC HEAD ASSEMBLYMAIN CBAKEY 1ST-SENS.T-REELKEY 0DV-SYNCC-SYNCC-SYNCV-ENV

1-7-2T5553BLVVideo Block DiagramLUMINANCESIGNAL PROCESSMAIN CBA (DECK ASSEMBLY)V(R)V-COMV(L)CL401123VIDEOAGCRPFBCY/CMIXCCD 1HDELAYRPYNR/COMB FILTERCHR

1-7-3Audio Block DiagramT5553BLABLOCK DIAGRAM FOR SECTION 2 (DECK MECHANISM)MAIN CBAPB-AUDIO SIGNAL REC-AUDIO SIGNALIC301(CHROMA/DEFLECTION SIGNAL PRO

MAIN SECTION13" COLOR TV/VCR COMBINATIONEWC1303ATABLE OF CONTENTSSpecifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-7-4Chroma/Tuner Block DiagramT5553BLCX3013.58MHzCL502BSAWFILTERSF001IC301 (CHROMA/DEFLECTION SIGNAL PROCESS)TU001IFAGCSDASCLFSC111548IC201(SYSTEM CO

1-7-5CRT/H.V. Block DiagramT5553BLCRTPUMP UPAMPTHERMALPROTECTIONV-DRIVEH-DRIVEGREEN AMPBLUE AMPQ511Q521Q531H.DRIVEQ572 Q571T572AFCACLV-DRIVEH-DRIVEL55

1-7-6Power Supply Block DiagramT5553BLP6421121110978LINEFILTERBRIDGERECTIFIERT601IC601ERRORVOLTAGE DETW601F6014A/125VL601D603 - D606SWITCHINGQ604VR601

1-7-7 T5553MTIMECHANICAL TROUBLE INDICATOR1, Each Malfunction IndicationIf the MONITOR is turned ON right after the Mechani-cal Malfunction occurs or

1-7-8 T5553MTIMechanical Malfunction determination1) REEL Malfunction detectionCountermeasure for REEL and CAPSTAN motorrotation malfunction (Except C

1-7-9 T5553TR1Check Fuse (F601) is blown out or not. If fuse is blown out, do repair method #1Check whether the primary rectifying DC of the Switching

1-7-10 T5553TR1Repair method #2Check the primary rectifying diodes (D603-D606) aspossible problems. Remove the above mentionedparts and check them. Pe

1-8-1 SC_1(Top View) (Bottom View)(Bottom View)Electrolytic Capacitor+Transistor or Digital TransistorNPN TransistorPNP TransistorNPN Digital Transist

1-8-2 SC_2LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ONTHE FOLLOWING PAGES:1. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK

A1A2A3A4B1B2B3B4C1C2C3C4D1D2D3D4E1E2E3E4F1F2F3F4Main 1/5 Schematic Diagram1-8-3 1-8-4T5553SCM1MAIN 1/5Ref No. PositionIC201C-2IC202D-1Q205B-1Q206D-3CL

1-1-1 T5553SPSPECIFICATIONS*ˆMode---------SP mode unless otherwise specified*Test input terminal <Except Tuner>-------------Video input (1Vp-

G1G2G3G4H1H2H3H4I1I2I3I4J1J2J3J4K1K2K3K4L1L2L3L4REC Video SignalREC Audio SignalPB Video SignalPB Audio SignalMain 2/5 Schematic Diagram1-8-51-8-6T555

M1M2M3M4N1N2N3N4O1O2O3O4P1P2P3P4Q1Q2Q3Q4R1R2R3R4REC Video SignalREC Audio SignalPB Video SignalPB Audio SignalMain 3/5 Schematic Diagram1-8-7 1-8-8T55

S1S2S3T1T2T3U1U2U3V1V2V3W1W2W3X1X2X3Main 4/5 Schematic Diagram1-8-91-8-10T5553SCM4NOTE :The voltage for parts in hot circuit is measuredusing hot GND

Y1Y2Y3Z1Z2Z3AA1AA2AA3BB1BB2BB3CC1CC2CC3DD1DD2DD3REC Video SignalPB Video Signal1-8-11 1-8-12T5553SCM5 Main 5/5 & CRT Schematic DiagramMAIN 5/5Ref

CTLTP201WF3RF-SWTP202WF1V-OUTTP301WF5V-ENVTP402A-OUTTP401WF8B-OUTJ271WF6+B ADJVR601D613 Cathode(+B Adjustment)R583(H Adjustment)C613 GND(+B Adjustment

PIN 5OF CN571WF13Q571CollectorWF12PIN 9OF IC401WF9PIN 9OF IC301WF10PIN 7OF IC001WF7PIN 41OF IC301WF11PIN 49OF IC401WF2PIN 32OF IC401WF4PIN 59OF IC201W

Q531CollectorWF16Q521CollectorWF15Q511CollectorWF14CRT CBA Top View CRT CBA Bottom View1-8-171-8-18BT5500F01011CRT CBARef No. PositionQ511B-1Q521B-1Q5

WAVEFORMSZ13WF1-9-1WAVEFORM NOTESINPUT: NTSC COLOR BAR SIGNAL (WITH 1kHz AUDIO SIGNAL)BRIGHTNESS, COLOR AND TINT CONTROLS: CENTER POSITIONCONTRAST CON

WIRING DIAGRAMT5553WI1-10-1FULL ERASE HEADWIRING DIAGRAM FOR SECTION 2 (DECK MECHANISM)CRT CBABT5500F01011FOCUSSCREENGNDD.Y.VDHDCL403CL501A CL501BMAIN

1-11-1 T5553TISYSTEM CONTROL TIMING CHARTSChart 10.2S1. EJECT (POWER OFF) -> CASSETTE IN (POWER ON) -> STOP(B) -> STOP(A) -> PLAY -> RS

1-1-2 T5553SP<AUDIO>All items are measured across 8Ω resistor at speaker output terminal.Note: Nominal specifications represent the design speci

1-11-2 T5553TIChart 2PIN NO.LD-SWCL/SSLD-CONTC-DRIVE"Z"ONONC-F/RDRUMROTATIONP-ONA-MUTE-HD-REC-HD-PB-HEJAURSSFSMTLFBALSB18266316544DISPLAYST-

1-12-1 T5553PINIC PIN FUNCTION DESCRIPTIONSIC201 (TV/VCR Micro Controller)“H” ≥ 4.5V, “L” ≤ 1.0VPin No.IN/OUTSignalNameFunction1 IN LD-SW Loading Swit

1-12-2 T5553PIN67 - NU Not Used68 - YCA-SOUT YCA-SOUT Signal69 - YCA-CS YCA-CS Signal70 - YCA-SCLK YCA-SCLK Signal71 OUT SCLE2PROM/CHROMA IC Tuner Com

1-13-1 T5553LELEAD IDENTIFICATIONSS D GE C BB C EE C BIN G OUTKEAC8051811001305031IN G OUT8 51 442 2212120 111

EXPLODED VIEWSCabinetL1L1L1L2L1 TL1 TL1TL1TL1TL1TL1TB26TB9 TL1TL5TL2TL2TL2TL4TB3TB1TB11TB8L4B2 B2 B2 B2 TB10A2A3A1-5A1-3A1-2A1-4A1-1B1TB21TB7L71

1-14-3 T5553PEXPackingX3X4X2TAPEX1X7X5S2S6S3S1S4FRONTS15

20040106 1-15-1 T5553CAMECHANICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a #have special characteristics important to safety. Beforerepla

20040106 1-15-2 T5553CATable 1 (V501 and L551 Combination)Note 1: Purity and Convergence Adjustments must beperformed following CRT replacement. Refer

20040106 1-16-1 T5553ELELECTRICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a# have special characteristics important to safety.Before repla

20040106 1-16-2 T5553ELC323 CHIP CERAMIC CAP. F Z 2.2µF/10V CHD1AZB0F225C324 CHIP CERAMIC CAP. F Z 1µF/10V CHD1AZB0F105C325 CHIP CERAMIC CAP. F Z 1µF/

1-2-1 SFTY_2IMPORTANT SAFETY PRECAUTIONSPrior to shipment from the factory, our products are strictly inspected for recognized product safety and elec

20040106 1-16-3 T5553ELELECTROLYTIC CAP. 3.3µF/50V M CE1JMASTL3R3C626 ELECTROLYTIC CAP. 4.7µF/50V M H7 CE1JMAVSL4R7C627 ELECTROLYTIC CAP. 47µF/35V M o

20040106 1-16-4 T5553ELRECTIFIER DIODE ERB12-06 QDQZ0ERB1206D604 DIODE 1N5397-B or NDLZ001N5397RECTIFIER DIODE ERB12-06 QDQZ0ERB1206D605 DIODE 1N5397-

20040106 1-16-5 T5553ELQ301 TRANSISTOR 2SC2785(F) or QQSF02SC2785TRANSISTOR KTC3199(GR) or NQS10KTC3199TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815Q401 TR

20040106 1-16-6 T5553ELR248 CHIP RES.(1608) 1/10W J 470 Ω RRXAJB5Z0471R249 CARBON RES. 1/4W J 3.3k Ω RCX4JATZ0332R250 CHIP RES.(1608) 1/10W J 1.5k Ω R

20040106 1-16-7 T5553ELR614 CARBON RES. 1/4W J 2.2k Ω RCX4JATZ0222R616 CARBON RES. 1/4W J 1 Ω RCX4JATZ01R0R617 CARBON RES. 1/4W J 180 Ω RCX4JATZ0181R6

20040106 1-16-8 T5553ELCRT CBA# FUSE STC4A125V U/CT or PAGE20CW3402# FUSE 4.00A/125V PAGG20CNG402FH601 FUSE HOLDER MSF-015 XH01Z00LY001FH601# FUSE HOL

20040106 1-16-9 T5553ELSENSOR CBARef. No. Description Part No. SENSOR CBAConsists of the following0ESA04524TRANSISTORSQ201 PHOTO TRANSISTOR MID-32A22F

EWC1303AT5553UD2004-01-20

1-2-2 SFTY_2ing is performed that involves B+, horizontal de-flection or high voltage. Correct operation of theX-radiation protection circuits also mu

1-2-3 SFTY_2Precautions during Servicing A. Parts identified by the ( # ) symbol are critical forsafety.Replace only with part number specified. B. In

1-2-4 SFTY_2Safety Check after ServicingExamine the area surrounding the repaired locationfor damage or deterioration. Observe that screws,parts and w