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19” COLOR TELEVISION

SERVICE MANUAL

EWT19S2

Summary of Contents for EWT19S2

Page 1: ...19 COLOR TELEVISION SERVICE MANUAL EWT19S2 ...

Page 2: ...valuate and advice the service trade of all con ceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer who uses a service proce dure or tool which is not recommended by Funai must first use all precau tions thoroughly so that neither his safety nor the safe operation o...

Page 3: ...et limit specifications Description Condition Unit Nominal Limit 1 Intermediate Freq Picture Sound MHz MHz 45 75 41 25 2 Peak Picture Sens VHF CATV UHF dBµv dBµv dBµv 15 15 15 30 30 40 3 AFT Pull In Range 10mV input MHz 2 0 0 7 Description Condition Unit Nominal Limit 1 Deflection Freq Horizontal Vertical KHz Hz 15 734 60 2 Linearity Horizontal Vertical 15 10 3 Over Scan 10 4 High Voltage KV 26 De...

Page 4: ...ngs tied together and touch the other ohmme ter lead in turn to each tuner antenna input ex posed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 mego hm an abnormality exists that must be corrected before the instrument is returned to the customer Repeat this test with the instrument AC switch in the off position d L...

Page 5: ...the ground side of the AC power source To confirm that the AC power plug is inserted correctly with an AC volt meter measure between the chassis and a known earth ground If a voltage reading in excess of 1 0V is obtained remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground b Some TV receiver chassis norm...

Page 6: ...replaced wires do not contact sharp edged or pointed parts H When a power cord has been replaced check that 5 6 kg of force in any direction will not loosen it I Also check areas surrounding repaired locations J Use care that foreign objects screws solder drop lets etc do not remain inside the set K Crimp type wire connector The power transformer uses crimp type connec tors which connect the power...

Page 7: ...exposed accessible parts RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and followin...

Page 8: ...C 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 Release the flat pack IC from the CBA using twee zers Fig S 1 6 Caution 1 Do not supply hot air to the chip parts around the flat pack IC for over 6 seconds because damage to the chip parts may occur Put masking tape arou...

Page 9: ... pins 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 air blower pull up the wire as the solder melts so as to lift the IC leads from the CBA con tact pads as shown in Fig S 1 5 4 Bottom of the flat pack IC is fixed with glue to the CBA when removing ...

Page 10: ...cur due to a potential difference caused by electro static charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1MΩ that is prop erly grounded to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the semi...

Page 11: ...o be removed unhooked un locked released unplugged unclamped or desoldered S Screw P Spring L Locking Tab CN Con nector Unhook Unlock Release Unplug or Desolder 2 S 2 two screws S 2 5 Refer to the following Reference Notes in the Table Reference Notes in the Table 1 Removal of the Rear Cabinet Remove screws 5 S 1 and S 3 then slide the Rear Cabinet back ward 2 Removal of the CRT CBA Disconnect CN5...

Page 12: ... 1 S 1 S 1 S 1 1 Rear Cabinet S 1 S 1 Front Cabinet Control Plate S 3 Fig 2 Control Plate Front Cabinet 3 Main CBA Fig 3 S 2 S 2 S 2 S 2 4 CRT 2 CRT CBA Anode Cap Degaussing Coil Front Cabinet Control Plate Degauss Holder CRT Ground Wire Fig 4 ...

Page 13: ...Wiring Diagram CN691 ANODE CN801 CN802 CLN801 SP801 L691 DEGAUSSING COIL MAIN CBA FLYBACK TRANSFORMER T571 AC601 AC CORD TU1 TUNER WH501B Fig 5 JK501 WH301B FOCUS SCREEN WH501A WH301A TO CRT GROUND CN571 CN501 CLN802 SP802 ...

Page 14: ... on the lower left is 00 and if it is not 00 set it at 00 according to 3 1 FRENCH ACCESS CODE VIDEO TONE When CPU version is 200 0 07 Confirm that the character of U U S A model is indicated on the bottom left of the CRT If the character of C CAN ADA model is indicated perform 3 1 Setting for FRENCH Data Values 1 DC 114V Adjustment Purpose To obtain correct operation Symptom of Misadjustment The p...

Page 15: ... the Service remote control unit Display changes BRIGHT CONTRAST COLOR TINT V TINT and SHARP cycli cally when MENU button is pressed CONTRAST CNT 1 Press MENU button on the Service remote control unit Then select CONTRAST CNT display 2 Press CH o p buttons on the Service remote control unit so that the value of CONTRAST CNT becomes 78 COLOR CLR 1 Press MENU button on the Service remote con trol un...

Page 16: ...yn chronize correctly when RF input level is too weak and picture distortion may occur if it is too strong Notes TP301 Main CBA Use Service remote control unit 1 Enter the Service mode See Page 5 1 Then press number 2 button on the Service remote control unit 2 Receive the Color Bar signal for channel 4 67 25MHz RF Input Level 60dBµV 3 Press CH o p buttons so that the voltage of TP301 becomes 2 5 ...

Page 17: ...V Size Adjustment Purpose To obtain correct vertical height of screen image Symptom of Misadjustment If V Size is incorrect verti cal size of image on the screen may not be properly dis played Note Use Service remote control unit 1 Operate the unit for at least 20 minutes 2 Enter the Service mode See page 5 1 3 Receive the Monoscope Pattern 4 Press 9 button on the Service remote control unit and s...

Page 18: ...on on the TV unit 11 H Position Adjustment Purpose To obtain correct horizontal position of screen image Symptom of Misadjustment If H Position is incor rect horizontal position of image on the screen may not be properly displayed Note Use Service remote control unit 1 Operate the unit for at least 20 minutes 2 Enter the Service mode See page 5 1 3 Receive the Monoscope Pattern 4 Press 8 button on...

Page 19: ...te Symptom of Misadjustment White becomes bluish or reddish Note Use Service remote control unit 1 Operate the unit more than 20 minutes 2 Face the unit to the East Degauss the CRT using a degaussing coil 3 Input the White Raster APL 100 4 Set the color analyzer to the CHROMA mode and after zero point calibration bring the optical recep tor to the center on the tube surface CRT 5 Enter the Service...

Page 20: ... 2 adjustments normally are not attempted in the field They should be done only when replacing the CRT then adjust as a prepara tion 16 Purity Adjustment Purpose To obtain pure color Symptom of Misadjustment If Color Purity Adjust ment is incorrect large areas of color may not be properly displayed 1 Set the unit facing the East 2 Operate the unit for over 30 minutes before adjust ing 3 Fully dega...

Page 21: ...otating RB G C P Magnet See Fig 8 3 Fix the C P Magnets by tightening the Ring Lock 4 Remove the DY Wedges and slightly tilt the De flection Yoke horizontally and vertically to obtain the best overall convergence 5 Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke Test Point Adj Point Mode Input C P Magnet RB C P Magnet RB G Deflection Yoke Dot Pattern or...

Page 22: ... FROM TO CRT H V BLOCK DIAGRAM OSD BLK KEY IN2 8 5 6 CS 7 WF1 WF2 FROM TO CRT H V BLOCK DIAGRAM TU AUDIO TO AUDIO POWER CONTROL BLOCK DIAGRAM TO CRT H V BLOCK DIAGRAM BLUE 1 GREEN 2 RED 3 WF16 IF Video System Control Block Diagram VIDEO SIGNAL RF IF SIGNAL AUDIO SIGNAL REMOTE SENSOR RCV101 P ON H P ON H SDA SCL 29 P ON H A MUTE H A MUTE H 10 FROM TO AUDIO POWER CONTROL BLOCK DIAGRAM RESET 27 RESET...

Page 23: ... 44 47 49 30 32 A IN L FRONT TU AUDIO P ON H 8V SERIAL I F 13 14 POWER ON CONTROL 5 7V REGULATOR JK702 5V CTRL 5V CTRL2 8V CTRL TO POWER SUPPLY BLOCK DIAGRAM 8V Q441 X441 FROM TO IF VIDEO SYSTEM CONTROL BLOCK DIAGRAM SP801 SPEAKER L CH CN801 3 5 6 DC VOL 9 FROM TO IF VIDEO SYSTEM CONTROL BLOCK DIAGRAM FROM IF VIDEO SYSTEM CONTROL BLOCK DIAGRAM L6118BLA P ON ON P ON ON RESET RESET MONO OUT STEREO I...

Page 24: ...TER ANODE GND V501 CRT FOCUS SCREEN GND JK501 CN501 WH501B WH501A VIDEO SIGNAL CN571 FOCUS VR SCREEN VR 6 5 6 6 H OUTPUT H DRIVE FROM POWER SUPPLY BLOCK B X RAY J121 J122 Q502 4 3 1 5 S F HV 11 8 10 7 9 6 DEF B AMP 7 1 6 3 PULSE UP THERMAL PROTECTION 5 WF7 WF8 WF11 WF12 WF9 WF10 WF3 WF15 WF4 WF14 WF5 WF13 RED AMP PROTECT 2 RED 3 GREEN 4 BLUE 5 FROM TO IF VIDEO SYSTEM CONTROL BLOCK FROM TO IF VIDEO...

Page 25: ...t circuit is measured using hot GND as a common terminal CAUTION Switching 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 supply Otherwise it may cause some components in the power supply circuit to fail CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HA...

Page 26: ...awings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 All resistance values are indicated in ohms K 103 M 106 3 Resistor wattages are 1 4W or 1 6W unless otherwise specified 4 All capacitance values are indicated in µF P 10 6 µF 5 All voltages are DC voltages unless otherwise specified Note of Capacitors...

Page 27: ...al 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 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Note Mark I is a leadless chip component 6 Voltage indications on...

Page 28: ... F4 F5 G1 G2 G3 G4 G5 IF SIGNAL VIDEO SIGNAL AUDIO SIGNAL 7 3 L6118SCM1 Main 1 3 Schematic Diagram 7 4 7 5 MAIN 1 3 Ref No Position IC111 E 5 IC151 D 3 IC333 B 3 IC401 E 1 Q121 E 3 Q351 B 5 Q377 A 4 Q411 F 1 Q441 E 2 TP300 A 1 TP301 A 1 CN301 G 5 ICS TRANSISTORS TEST POINTS CONNECTOR ...

Page 29: ...ABILITY TO INCREASE THE INPUT SLOWLY WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED 7 7 7 8 MAIN 2 3 Ref No Position IC551 I 5 IC601 K 2 Q571 K 5 Q572 J 5 Q601 M 2 Q602 L 2 Q662 K 1 Q671 I 2 Q675 J 1 Q676 I 1 Q681 H 2 Q682 H 1 Q683 I 1 Q696 K 1 J121 K 4 J122 K 4 TP601 K 4 CN571 J 5 CN691 M 2 WH301A L 4 WH501A L 5 VR661 J 1 ICS TRANSISTORS TEST POIN...

Page 30: ...3 P2 P1 Q3 Q2 Q1 R3 R2 R1 AUDIO SIGNAL Main 3 3 Schematic Diagram L6118SCM3 MAIN 3 3 Ref No Position IC801 P 3 IC802 Q 3 Q825 P 1 Q831 R 2 Q832 R 2 Q833 Q 1 CN801 O 2 CN802 O 1 CONNECTOR ICS TRANSISTORS 7 9 7 10 ...

Page 31: ...r WF13 Q502 Base WF4 Q502 Collector WF14 TP501 GND TP1502 BLUE 7 11 BL6118F01011 2 7 12 CRT CBA Top View CRT CBA Bottom View CRT CBA Ref No Position Q501 B 2 Q502 B 2 Q503 C 2 TP501 B 3 TP502 A 2 CN501 A 2 WH301B B 1 WH501B B 1 TRANSISTORS TEST POINTS CONNECTORS ...

Page 32: ...UIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide 4A 125V MAIN CBA Ref No Position IC111 ...

Page 33: ...se some components in the power supply circuit to fail BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT AN ISOLATION TRANSFORMER MUST BE USED ALSO IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME...

Page 34: ... WF4 1DIV 2V 20µsec Q 503 Base WF5 GND 1DIV 10V 20µsec Q 572 Collector WF7 GND 1DIV 5V 20µsec Q 571 Base WF8 1DIV 20V 20µsec Q503 Collector WF13 1DIV 20V 20µsec Q 501 Collector WF15 1DIV 0 2V 20µsec TU 1 Pin 8 WF16 GND L6118WF 8 1 8 2 WF1 WF16 Waveforms to be observed at Waveform check points Shown in Schematic Diagram Input NTSC Color Bar Signal with 1kHz Audio Signal INITIAL POSITION Unplug unit...

Page 35: ... 5 CN571 1 2 3 4 5 WH301B GND RED GREEN BLUE V501 CRT ANODE L CH R CH 1 2 SP801 SPEAKER CN801 CLN802 1 2 SP802 SPEAKER CN802 9 1 L6118WI T571 FBT TU1 TUNER UNIT WH501A WH501B 8V GND RED GREEN BLUE 8V 1 GND 2 180V 3 GND 2 3 HEATER 1 CN301 NO CONNECTION CN301 IS USED FOR ADJUSTMENT AT FACTORY INT MONITOR 1 I2C OPEN 2 GND 3 SDA 4 SCL 5 SP L SP GND SP R SP GND 180V HEATER ...

Page 36: ...19 N U Not Used 20 N U Not Used 21 GND GND 22 VCC 5V 23 FILT PLL Filter 24 HLF Filter for CCD 25 VHOLD VHOLD 26 CVIN Input for Video Signal 27 RESET RESET 28 FSC IN External Clock Input 29 P ON H Output for P ON H 30 SCL I2C BUS ControllerInter face Clock 31 SDA I2C BUS ControllerInter face Data 32 CLK CTRL Clock Control Signal 33 OSD BLK Picture Shut Down Output 34 OSD R Red Output 35 OSD G Green...

Page 37: ...INWHA TAPE SGT 730 BLACK V501 2 SCOTCH TAPE 880 SCOTCH TAPE 880 SCOTCH TAPE 880 V501 CRT CBA ANODE CAP Part of Flyback Transformer DG691 DY551 CLN551 MAIN CBA B 6 L 1 L 1 B 12 B 7 B 10 AC601 T571 See Electrical Parts List for parts with this mark A 1 B 3 A 3 L 13 B 4 SP801 CLN801 B 15 L 13 B 8 SP802 CLN802 B 15 EXPLODED VIEWS Cabinet 11 1 11 2 L6118CEX ...

Page 38: ...Packing X 5 TAPE X 2 X 1 X 3 S 4 S 5 PACKING TAPE FRONT S 2 Some Ref Numbers are not in sequence S 3 S 3 S 1 S 6 S 2 X 9 11 3 L6115PEX ...

Page 39: ... 2P X ICI XB0M451HU003 X 3 OWNER S MANUAL E S L6118UU ENGLISH SPANISH 0EMN01978 X 5 POLYETHYLENE BAG F8626B5 Z325350 X 9 RETURN STOP SHEET T4259UK 0EM406203A Note 1 V501 CRT HAS COUPLE OF SUBSTITUTIONAL PARTS AND EACH PARTS ALSO HAS MATCHING COMBINATION WITH DY551 PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION 2 DY551 DEFLECTION YOKE HAS MATCHING COMBINATION WITH V501 PLEASE SEE TABLE 1 FO...

Page 40: ...arts order CRT Warning Label Location V501 CRT Type No V501 CRT Part No DY551 Deflection Yoke Part No CRT A48JLL90X TCRT190QS009 LLBY00ZMS013 LLBY00ZSY006 LLBY00ZQS004 CRT A48JLL90X K TCRT190QS019 LLBY00ZMS013 LLBY00ZSY006 LLBY00ZQS004 CRT A48LGS30X TCRT190THA01 LLBY00ZMS016 LLBY00ZTHA01 CRT A48LRH93X W TCRT190P7002 LLBY00ZSM007 LLBY00ZMS017 LLBY00ZQS005 LLBY00ZSY007 CRT A48LVL095X TCRT190MS011 LL...

Page 41: ...3 C308 CERAMIC CAP AX Y M 0 01µF 16V CDA1CMT0Y103 C309 ELECTROLYTIC CAP 1µF 50V M or CE1JMASTL1R0 ELECTROLYTIC CAP 1µF 50V M or CE1JMASDL1R0 ELECTROLYTIC CAP 1µF 50V M CE1JMASDL010 C313 ELECTROLYTIC CAP 1000µF 10V M VR or CE1AMZNTL102 ELECTROLYTIC CAP 1000µF 10V M or CE1AMZNDL102 ELECTROLYTIC CAP 1000µF 10V M CE1AMZADL102 C321 CERAMIC CAP AX Y M 0 01µF 16V CDA1CMT0Y103 C322 CERAMIC CAP AX F Z 0 01...

Page 42: ...50V M CE2EMASDL4R7 C577 ELECTROLYTIC CAP 47µF 35V M or CE1GMASTL470 ELECTROLYTIC CAP 47µF 35V M CE1GMASDL470 Ref No Description Part No C578 FILM CAP P 0 01µF 50V J or CMA1JJS00103 FILM CAP P 0 01µF 50V J CA1J103MS029 C580 PP CAP 0 01µF 1 6KV J or CT3C103MS039 PP CAP 0 01µF 1 6KV J or CBH3CJQ00103 P P CAP 0 01µF 1 6KV J or CA3C103VC011 METALLIZED FILM CAP 0 01µF 1 6KV J CT3C103F7002 C581 CERAMIC C...

Page 43: ...AP 470µF 16V M or CE1CMASTL471 ELECTROLYTIC CAP 470µF 16V M CE1CMASDL471 CONNECTORS CN301 CONNECTOR BASE 5P TUC P05P B1 J3TUA05TG001 CN571 CONNECTOR BASE 5P TV 50P 05 V3 or J3TVC05TG002 Ref No Description Part No CONNECTOR BASE 5P RTB 1 5 5P J3RTC05JG001 CN691 CONNECTOR BASE 2P TV 50P 02 V3 or J3TVC02TG002 CONNECTOR BASE 2P RTB 1 5 2P J3RTC02JG001 CN801 STRAIGHT CONNECTOR BASE 00 8283 0212 00 000 ...

Page 44: ...TCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 NDTZ001N4148 D697 PCB JUMPER D0 6 P5 0 JW5 0T D811 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 NDTZ001N4148 Ref No Description Part No D821 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 NDTZ001N4148 D826 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 NDTZ001N4148 D838 ZEN...

Page 45: ...TRANSISTOR KTC3199 GR or NQS10KTC3199 TRANSISTOR KTC3198 GR or NQS40KTC3198 TRANSISTOR 2SC1815 GR TPE2 QQS102SC1815 Ref No Description Part No Q831 TRANSISTOR 2SB892 S or QQSS002SB892 TRANSISTOR 2SB892 T QQST002SB892 Q832 TRANSISTOR 2SC2785 F or QQSF02SC2785 TRANSISTOR 2SC2785 H or QQSH02SC2785 TRANSISTOR 2SC2785 J or QQSJ02SC2785 TRANSISTOR KTC3199 GR or NQS10KTC3199 TRANSISTOR KTC3198 GR or NQS4...

Page 46: ...ARBON RES 1 4W J 2 2k Ω RCX4JATZ0222 Ref No Description Part No R432 CARBON RES 1 4W J 220 Ω or RCX4JATZ0221 CARBON RES 1 6W J 220 Ω RCX6JATZ0221 R435 CARBON RES 1 4W J 470 Ω or RCX4JATZ0471 CARBON RES 1 6W J 470 Ω RCX6JATZ0471 R436 CARBON RES 1 4W J 10k Ω RCX4JATZ0103 R441 CARBON RES 1 4W J 10k Ω RCX4JATZ0103 R442 CARBON RES 1 4W J 10k Ω RCX4JATZ0103 R443 CARBON RES 1 4W J 10k Ω RCX4JATZ0103 R445...

Page 47: ... 1 4W J 12k Ω RCX4JATZ0123 R715 CARBON RES 1 4W J 39k Ω RCX4JATZ0393 R722 CARBON RES 1 4W J 12k Ω RCX4JATZ0123 R725 CARBON RES 1 4W J 39k Ω RCX4JATZ0393 R734 CARBON RES 1 4W J 2 7k Ω RCX4JATZ0272 Ref No Description Part No R801 CARBON RES 1 2W J 100 Ω or RCX2JZQZ0101 CARBON RES 1 2W J 100 Ω RCX2JZPZ0101 R802 CARBON RES 1 2W J 100 Ω or RCX2JZQZ0101 CARBON RES 1 2W J 100 Ω RCX2JZPZ0101 R806 CARBON R...

Page 48: ...B VRCB503HH014 X344 X TAL 3 579545 MHz or FXD355LLN003 X TAL 3 579545MHz 30PPM FXD355LCHE01 X441 CERAMIC RESONATOR ZTB378F2 or FY0374PLN001 CERAMIC RESONATOR CSB378F2 FY0374PMR001 Ref No Description Part No Ref No Description Part No CRT CBA Consists of the following CAPACITORS C501 CERAMIC CAP AX B K 330pF 50V CCA1JKT0B331 C502 CERAMIC CAP AX B K 270pF 50V CCA1JKT0B271 C503 CERAMIC CAP AX B K 330...

Page 49: ...20020426 13 9 L6118EL CLN501 PARALLEL WIRE 3P WX1L1114 101 JK501 CRT SOCKET ISMS02S JSCC220PK003 Ref No Description Part No ...

Page 50: ...Printed in Japan 2002 05 24 HO EWT19S2 L6118UU ...

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