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Содержание CT32G6E - 32" COLOR TV

Страница 1: ... contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death ORDER NO MTNC010414C1 B5...

Страница 2: ...shielding The safety glass provide shielding for the tube viewing area against X ray radiation as well as implosion The magnetic shield limits the X ray radiation around the bell of the picture tube in addition to the restricting magnetic effects When using a picture tube test jig for service ensure that the jig is capable of handling 50kV without causing X ray radiation BeforereturningaservicedRe...

Страница 3: ...rector Strip 12 Service Mode Electronic Controls 14 Instructional Flow Chart for Service Mode 20 Service Adjustments Electronic Control 22 Sub Contrast 22 Sub Brightness 22 Tint Color Adjustment 22 White Balance 23 Sub Brightness Final Adjustment 23 Horizontal Centering 23 Vertical Size 24 MTS Circuit Adjustment 24 Input Level Adjustment 24 Stereo Separation Adjustment 24 Clock Adjustment 24 Servi...

Страница 4: ... the board soldering pads 2 Hold the chip component against the soldering pads with tweezers or with a miniature alligator clip and apply heat to the pad area with a 30 watt iron until solder flows Do not apply heat for more than 3 seconds How to Replace Flat IC Required Tools 1 Cut the pins of a defective IC with wire cutters Remove IC from board If IC is glued to the board heat the IC and releas...

Страница 5: ...ver is returned to the customer If voltages are out of tolerance immediate service and correction is required to insure safe operation and to prevent the possibility of premature component failure Equipment 1 Isolation transformer 2 High voltage meter 3 Short jumper 4 Jumper diode same as D823 PN S3L60P154004 Diode should be rated a minimum of 150V Procedure 1 Connect the Receiver to an isolation ...

Страница 6: ...ons mm WxDxH in 770 x 556 6 x 687 1 30 3 x 21 9 x 27 1 Weight kg lbs 49 5 109 1 Power source V Hz 120 60 Anode voltage 29 25kV 1 25kV Video input jack 1Vp p 75Ω phono jack Audio input jack 500mV RMS 47kΩ A Board TNP2AH024 Main chassis AB C Board TNP2AA075 CRT drive board AA Z Board TNP2AA010 Pincushion correction board AG Table 1 Receiver Features Specifications are subject to change without notic...

Страница 7: ...en menus are displayed Channel Buttons Press to select programmed channels Press to highlight desired features when menus are displayed Also use to select Cable Converter box channels after programming Remote Control Infra red codes the TV AUX CABLE switch must be set in CABLE position Action Button Press to display Main Menu and access On Screen feature and Adjustment Menus TV Video Button Press ...

Страница 8: ...nd and navigate in menus MUTE Press to mute sound Press to accessandcancel CC Closed Caption 0 9 Pressnumerickeypadtoselect any channel R TUNE Press to switch to previously viewedchannelorvideomode CH Press to select next channel and navigate in menus ACTION Press to access menus RECALL Presstodisplaytime channel sleep timer and other options EUR5101450 ...

Страница 9: ...page 2 2 Disconnect the yoke DY plug degaussing coil DEG plug from the main board 3 Unplug the CRT 2nd anode button from the main board 4 Remove the C Board from the CRT base and unplug the black wire CRT dag ground C10 5 Disconnect the A11 A12 and Speakers plugs from the A Board 6 Lift the Main Chassis A Board and all mounted boards completely out with the CRT Board attached CRT Replacement 1 Per...

Страница 10: ...t B voltage is 130 0V 2 5V This voltage supplies B to the Horizontal Output Flyback circuits Source Voltage Chart 120V AC line input Set the Bright and the Picture to Minimum by using the Picture Menu Use cold ground for the lead of the DVM Adjust Picture Menu for normalized video adjustments High Voltage Check 1 Select an active TV channel and confirm that horizontal is in sync 2 Adjust Brightnes...

Страница 11: ...n yoke back and forth on the neck of the CRT until it produces a near white uniform raster Vertical Raster Shift Adjustment Only for ModelswithPurity ConvergenceAssemblywith4Pairs of Rings Apply a green pattern with a horizontal line adjust the Deflection Yoke so that has no tilt then secure it Adjust center line of the pattern with the mechanical center of the CRT this center is determined by two...

Страница 12: ...rity has not been achieved repeat the above procedure Final Convergence Procedure see Fig 11 through Fig 13 Note Vertical size and focus adjustments must be completed prior to performing the convergence adjustment Connect a dot pattern generator to the Receiver The Brightness level should not be higher than necessary to obtain a clear pattern Converge the red and the blue dots at the center of the...

Страница 13: ... 13 Figure 11 Vertical Yoke Movement Figure 12 Horizontal Yoke Movement Figure 13 Convergence Magnets and Wedges Location Note For models using 4 pairs of rings assemblies see Fig 6 for details ...

Страница 14: ...additional indicators appear on screen One is the five digit usage in hours and the other two are four digits for V Chip Main and Child ratings Indicators are hexadecimal numbers 8 Press the Power Button on the Remote Control to select one of seven Service Adjustment Modes 1 B Service VCJ SUB DATA adjustments 2 C Service VCJ CUT OFF adjustments 3 M Service MTS adjustments 4 P Service VCJ adjustmen...

Страница 15: ...actory preset 88 CD ACL REF factory preset 74 CE ACL REF factory preset 64 CF ACL REF factory preset 48 C10 ACL REF factory preset 40 C11 ACL REF factory preset 31 C12 ACL REF factory preset 20 C13 ACL COEF factory preset 124 C14 ACL COEF factory preset 117 1 Press Channel Up Down on the Remote Control to select one of the available Service Adjustments a in Fig 14 Note Write Down the original valu...

Страница 16: ...ATION 6 M3 AGC ADJ factory preset 0 VCJ Adjustment Default Level S0 SHARPNESS PW factory preset 3 S1 SHARPNESS OW factory preset 3 S2 HALFTONE factory preset 0 S3 TVC DELAY factory preset 0 S4 TVY DELAY factory preset 0 S5 GAMMA FOLDING POINT factory preset 13 S6 VIDEO Y DELAY factory preset 0 S7 VIDEO C DELAY factory preset 0 S8 COMB BPF factory preset 0 S9 COMB 2D factory preset 1 SA COLOR KILLE...

Страница 17: ... preset 4 P7 THRESHOLD F1 factory preset 129 P8 THRESHOLD F1 factory preset 1 P9 THRESHOLD OFF1 EFFECT OFF factory preset 35 PA THRESHOLD F2 factory preset 99 PB THRESHOLD F2 factory preset 1 PC THRESHOLD OFF2 EFFECT OFF factory preset 30 PD THRESHOLD F3 factory preset 80 PE THRESHOLD F3 factory preset 1 PF THRESHOLD OFF3 EFFECT OFF factory preset 21 P10 THRESHOLD ON1 factory preset 37 P11 THRESHO...

Страница 18: ...60 X1 AFCB 29 X2 AFCC 42 X3 CLOCK 128 CH CH PW TO B ITEMS Helpful Hints Entering Service Mode Back Open Method 1 While the Receiver is ON and operating in Normal Mode momentarily short test point FA1 TP8 to Cold Ground FA2 TP3 A Board The Receiver enters the Aging Mode Yellow letters CHK appear in the upper left corner of the CRT The Volume Up Down will adjust rapidly 2 Simultaneously press the Ac...

Страница 19: ... 19 Notes ...

Страница 20: ...t to nominal level SERVICE MODE CHK turns red Volume Up Down operate normally Custumer Controls are set to nominal level SUB DATA ADJUSTMENTS B ITEMS QUICK ENTRY TO SERVICE MODE Select CABLE Mode Set SLEEP time for 30 60 or 90 Min Tune to Channel 124 Adjust Volume to minimum Press VOL DOWN On Receiver EXIT EXIT N Y N Y C ON REMOTE RECALL Press Action and Power on the Receiver simultaneously for at...

Страница 21: ... SELECT ADJUSTMENT ON REMOTE TO ADJUST THE LEVEL CH VOL VOL Adj needed N Y POWER ON REMOTE EXIT C N IMPORTANT Always Exit the Service Mode Following Adjustments Press Action and Power on the Receiver simultaneously for at least 2 seconds Note Only applicable settings for the Receiver serviced will be available ON REMOTE CONTROL TO SELECT ADJUSTMENT ON REMOTE TO ADJUST THE LEVEL CH VOL VOL B ...

Страница 22: ...DAC Adjustment B2 Due to the characteristics of this chassis Sub brightness adjustments are not necessary For good brightness level set the register to 127 the default level Perform Sub Brightness Final Adjustment on page 23 only if a different brightness level is required for the picture Tint Color Adjustment Service DAC Adjustment B1 B0 Preparation 1 Apply a rainbow color bar signal 2 Preset the...

Страница 23: ...les and observe black and white tracking 4 If corrections are required repeat step 1 until the correct balance is achieved 5 Following satisfactory High Lights adjustment perform the following White Balance Touch Up White Balance Touch Up Procedure Use this procedure to make minor adjustment to white balance 1 Enter Service Mode 2 Apply a black and white B W signal signal that includes gray tones ...

Страница 24: ...lation Audio 300Hz 100 modulation stereo left only 70 5dB 75Ω OPEN P S 10dB 3 Adjust the MTS Low Level Separation Adjustment M2 until the amplitude displayed on the scope is minimum 4 Apply the following signal from the RF signal generator Video 100 IRE flat field 30 modulation Audio 3KHz 100 modulation stereo left only 70 5dB 75Ω OPEN P S 10dB 5 Adjust the MTS High Level Separation Adjustment M1 ...

Страница 25: ... part of T551 Preparation Connect a Signal generator and select a dot pattern Procedure Adjust the FOCUS control VR to obtain the sharpest and clearest dot pattern a Adjust for best center b Adjust for best area between the center and top right corner ...

Страница 26: ...ew Screw Screw Screw Screw Screw Screw Screw Screw CRT secured to cabinet by 4 screws on corners of CRT DAG ground Anode high voltage C board Tuner A V jacks Flyback T551 Note After servicing the Receiver dress cables and wires as indicated Yoke Speaker 4 screws Speaker 4 screws Degaussing coil ...

Страница 27: ... 27 Figure 28 C Board component locations Figure 29 Z Board CRT Socket Q351 R Out Q352 G Out Q353 B Out ...

Страница 28: ...HS A V Jacks Focus IC001 MPU VCJ Components on trace side Flyback T551 IC050 Halftone IC2301 Right Audio Amp IC2302 Left Audio Amp F801 Fuse 6 3A 125V Q551 H Out Q501 H Drive IC801 VCO IC002 EEPROM IC005 3 3 V IC2201 MTS IC3101 AV SW on trace side RL801 Relay D801 Rect Bridge IC551 9V Reg IC552 5V Reg ...

Страница 29: ...C105 ECA0JM101B CAP E 100UF 6 3V C350 ECA1CM101B CAP E 100UF 16V C351 ECJ2VB1H331K CAP C 330PF K 50V C352 ECJ2VB1H331K CAP C 330PF K 50V C353 ECJ2VB1H331K CAP C 330PF K 50V C354 ECKW3D102KBN CAP C 001UF K 2KVDC C357 EEANA1E1R0B CAP E 1 0UF 25V C361 ECJ2VC1H151J CAP C 150PF J 50V C362 ECJ2VC1H151J CAP C 150PF J 50V C363 ECJ2VC1H151J CAP C 150PF J 50V C451 ECA1CHG470B CAP E 47UF 16V C452 ECSF1EE105V...

Страница 30: ...1HN010UB CAP E 1UF 50V C2303 ECA1EM101B CAP E 100UF 25V C2304 ECA1EM100B CAP E 10UF 25V C2307 ECA1CM102B CAP E 1000UF 16V C2311 ECA1VM102E CAP E 1000UF 35V C2312 ECEA1HN010UB CAP E 1UF 50V C2313 ECA1EM101B CAP E 100UF 25V C2314 ECA1CM100B CAP E 10UF 16V C2317 ECA1CM102B CAP E 1000UF 16V C2320 ECA1CM100B CAP E 10UF 16V C2330 ECA1CM100B CAP E 10UF 16V C2350 ECA1HM4R7B CAP E 4 7UF 50V C3001 ECA1HM0R1...

Страница 31: ...IN470KA COIL PEAKING L803 ELESN120JA COIL PEAKING 12UH L805 ELEIE220KA COIL 22UH L2350 ELESN4R7JA COIL PEAKING 4 7UH TRANSISTORS Q001 2SD601ARTX TRANSISTOR Q006 2SB709ARTX TRANSISTOR Q007 2SB709ARTX TRANSISTOR Q008 2SB709ARTX TRANSISTOR REF NO PART NO DESCRIPTION Q009 2SC1473A TRANSISTOR Q050 2SB709ARTX TRANSISTOR Q051 2SB709ARTX TRANSISTOR Q052 2SB709ARTX TRANSISTOR Q053 2SD601ARTX TRANSISTOR Q05...

Страница 32: ...ERJ6ENF4700V RES M 470 F 1 10W R362 ERJ6ENF4700V RES M 470 F 1 10W R363 ERJ6GEYJ101V RES M 100 J 1 10W R364 ERJ6GEYJ101V RES M 100 J 1 10W R365 ERJ6GEYJ101V RES M 100 J 1 10W R381 ERJ6GEYJ101V RES M 100 J 1 10W REF NO PART NO DESCRIPTION R382 ERJ6GEYJ101V RES M 100 J 1 10W R383 ERJ6GEYJ101V RES M 100 J 1 10W R384 ERJ6ENF2701V RES M 2 7K F 1 10W R385 ERJ6ENF4421V RES M 4 42K F 1 10W R386 ERJ6ENF120...

Страница 33: ... R850 ERQ12HJR56P RES F 56 J 1 2W R2201 ERJ6GEYJ224V RES M 220K J 1 10W R2203 ERJ6GEYJ102V RES M 1K J 1 10W R2204 ERJ6GEYJ102V RES M 1K J 1 10W R2205 ERJ6GEYJ101V RES M 100 J 1 10W R2206 ERJ6GEYJ273V RES M 27K J 1 10W R2301 ERQ2CJP3R9S RES F 3 9 J 2W R2307 ERJ6GEYJ103V RES M 10K J 1 10W REF NO PART NO DESCRIPTION R2350 ERDS2TJ391T RES C 390 J 1 4W R2351 ERJ6GEYJ562V RES M 5 6K J 1 10W R2352 ERJ6GE...

Страница 34: ...A0021 BADGE PANASONIC M015 TBX2AA1001AG BUTTON 7 KEY M016 TKP2AA00601 SMOKED SHEET REF NO PART NO DESCRIPTION M017 TKX2A3753 GUIDE IR JK3001 TJB2A9064B ASSY JACK A V JK3003 TJB2AA0171 TERMINAL S VHS M018 TQB2AA0375 1 MANUAL OWNERS CT 32G6E UE M019 TQB2AA0395 1 MANUAL OWNERS CT 32G6CE M020 TQB2AA7057 REMOTE GUIDE M021 TQB2AA7108 V CHIP MANUAL REF NO PART NO DESCRIPTION DESCRIPTION OF ABBREVIATIONS ...

Страница 35: ...udes may vary depending on the type of Oscilloscope used and its settings 5 Ground symbol shown on waveform number indicates Hot ground lead connection of the Oscilloscope CAUTION Incorrect ground connection of the test equipment will result in erroneous readings 3 VOLTAGE MEASUREMENTS 1 Voltage measurement AC input to the Receiver is 120V NTSC HD 1125i 525P when applicable signal generator is con...

Страница 36: ...ncia de la señal y el contenido de la imagen Las fuentes de voltajes son nominales 2 El símbolo indica el tipo de tierra que se utiliza en la conexión del medidor PRECAUCION SI no se utiliza la conexión a la tierra adecuada se obtendrán mediciones equivocadas y podría dañar el equipo de medición MEDICIÓN DE FORMAS DE ONDA 1 Un símbolo como indica el punto para medir una señal La medición puede hac...

Страница 37: ...los componentes y sus valores en la lista de partes La medición de los voltajes se hizo con un Voltímetro Digital Notes Check Parts List for most recent component values and part numbers Obtain voltages with a digital multimeter The board layouts were modified to enhance and display traces otherwise hidden by a mask Q354 3 12 6 88 2 56 Q355 3 06 6 95 2 51 Q356 3 04 6 99 2 50 B C E Q351 6 87 141 90...

Страница 38: ... 38 A BOARD SCHEMATIC LEFT PORTION DIAGRAMA ELÉCTRICO TARJETA A SECCIÓN IZQUIERDA A BOARD TARJETA A ...

Страница 39: ... 39 A BOARD SCHEMATIC RIGHT PORTION DIAGRAMA ELÉCTRICO TARJETA A SECCIÓN DERECHA A BOARD TARJETA A B E C CHIP TRANSISTOR LEAD DESIGNATION B E C IDENTIFICACIÓN DE TERMINALES PARA TRANSISTORES EN CHIP ...

Страница 40: ...c 3 26 GND 5 01 IC006 1 2 3 5 00 4 98 GND IC003 1 2 3 4 97 GND 4 98 IC2201 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 16 2 17 2 16 2 23 2 17 0 43 4 91 2 42 2 47 0 51 2 26 0 00 3 34 2 16 3 29 3 45 GND 4 97 0 20 n c 2 24 2 20 n c n c IC2301 1 2 3 4 5 6 7 8 9 10 11 12 n c GND 13 70 GND n c 2 71 16 81 GND 4 98 8 80 3 41 18 81 IC553 1 2 3 8 96 GND 8 91 IC801 1 2 3 4 5 193 00 0 00 ...

Страница 41: ... La medición puede hacerse en el punto con mayor accesibilidad siempre que sea común al indicado 2 Se midieron utilizando un generador con formato NTSC conectado a la terminal de la antena Patrón de 8 Barras de Colores EAI formato NTSC de 100 IREs para el Blanco y 7 5 IREs para el Negro 3 Los ajustes de usuario de los Menus PICTURE y AUDIO se normalizaron Posteriormente el nivel de volumen se ajus...

Страница 42: ... 42 A C BOARDS LAYOUT CIRCUITO IMPRESO DE LAS TARJETAS A Y C A C BOARDS TARJETAS A Y C ...

Страница 43: ... 43 Z BOARD SCHEMATIC LAYOUT VOLTAGES DIAGRAMA ELÉCTRICO CIRCUITO IMPRESO Y VOLTAJESTARJETA Z Z BOARD TARJETA Z Q751 2 97 9 75 2 38 Q752 12 49 0 40 12 98 Q753 0 45 11 66 GND B C E ...

Страница 44: ... 44 NOTES NOTAS ...

Страница 45: ... 45 Notes ...

Страница 46: ... 46 Notes ...

Страница 47: ...ET C12 ACL REF N A 20 FACTORY PRESET C13 ACL COEFF N A 124 FACTORY PRESET Mode Service Adjustment Adjustment Range Def Val Original Value New Value Cut Off Adjustments Cont C14 ACL COEFF N A 117 FACTORY PRESET C15 ACL COEFF N A 94 FACTORY PRESET C16 ACL COEFF N A 80 FACTORY PRESET C17 ACL WAIT N A 2 FACTORY PRESET C18 ACL THRESHOLD N A 9 FACTORY PRESET C19 MACROVISION N A 3 FACTORY PRESET C1A OSD ...

Страница 48: ... N A 2 FACTORY PRESET P4 BS ON OFF N A 1 FACTORY PRESET P5 BS TIME CONSTNAT N A 5 FACTORY PRESET P6 THRESHOLD V N A 4 FACTORY PRESET P7 THRESHOLD F1 N A 129 FACTORY PRESET P8 THRESHOLD F1 N A 1 FACTORY PRESET P9 THRESHOLD OFF1 EFFECT OFF N A 35 FACTORY PRESET PA THRESHOLD F2 N A 99 FACTORY PRESET PB THRESHOLD F2 N A 1 FACTORY PRESET PC THRESHOLD OFF2 EFFECT OFF N A 30 FACTORY PRESET Mode Service A...

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