Panasonic TC-14A12P Service Manual Download

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Service Manual

Order DCS - AGO2002 - 003 - MS

Color Television

TC-14A12P

TC-20B12

BR2L chassis

TELEVISION

Power source

Consumption

Antenna input jack

Color systems

Tuning system

Channel capability

Picture tube (visual diagonal)

Audio system

Video input jack

Dimension (width, height, depth)

Weight

TC-14A12P

110/220 V AC, 60 Hz automatic switch

55 W

75 W - VHF/UHF/Cable

NTSC/PAL-N/AUTO/PAL-M

F.S.T.

2 to 13 (VHF)

14 to 69 (UHF)

1 to 125 (Cable)

33 cm

3 W max (RMS)

1 (back of unit)

370 x 349 x 374 mm

9,6 kg

Supplied Accessories:
• 1 Remote Control Transmitter
• 1 300

Ω

/75

Ω

Aerial Adaptor

• 2 “AA” type batteries
• 1 Internal antenna (for TC-14A12P only)

Specifications

Specifications are subject to change without notice. Weight and dimensions shown are approximate.

Remote Control Transmiter:
Power Source

3V (2 AA type batteries)

Infrared Length

9500 A (Angstron)

Number of Buttons

29 keys

Dimensions (W x H x D)

(54 x 27 x 135) mm

TC-20B12

110/220 V AC, 60 Hz automatic switch

69 W

75 W - VHF/UHF/Cable

NTSC/PAL-N/AUTO/PAL-M

F.S.T.

2 to 13 (VHF)

14 to 69 (UHF)

1 to 125 (Cable)

48 cm

3 W max (RMS)

1 (back of unit)

502 x 455 x 471 mm

17 kg

Summary of Contents for TC-14A12P

Page 1: ...MS 1 back of unit 370 x 349 x 374 mm 9 6 kg Supplied Accessories 1 Remote Control Transmitter 1 300Ω 75Ω Aerial Adaptor 2 AA type batteries 1 Internal antenna for TC 14A12P only Specifications Specifications are subject to change without notice Weight and dimensions shown are approximate Remote Control Transmiter Power Source 3V 2 AA type batteries Infrared Length 9500 A Angstron Number of Buttons...

Page 2: ...ver from being damaged by accidental shorting that may occur during servicing When servicing observe the original lead dress especially in the high voltage circuit Replace all damaged parts also parts that show signs of overheating Always Replace Protective Devices such as fishpaper isolation resistors and capacitors and shields after servicing the Receiver Use only manufacturer s recommended rati...

Page 3: ...control sensor FUNC function button TV AV button Volume Down or Up buttons FUNC TV AV VIDEO AUDIO Earphone output Channel Down or Up buttons AUDIO VIDEO AV IN Antenna input jack Power supply cord output Location of Controls TC 14A12P Location of Controls TC 14A12P Location of Controls TC 14A12P Location of Controls TC 14A12P Location of Controls TC 14A12P Front view Front view Front view Front vie...

Page 4: ...CTURE MENU PICTURE MENU Remote Control Remote Control Remote Control Remote Control Remote Control Installing the Batteries Installing the Batteries Installing the Batteries Installing the Batteries Installing the Batteries 1 Remove the battery compartment cover from the back of the remote control by pressing the lock down and pulling the cover out 2 Install the batteries in the compartment polari...

Page 5: ... sole responsibility Installation Installation Installation Installation Installation 300 to 75 ohms matching transformer supplied 300 ohms twin cable 75 ohms coaxial cable VCR back view only for illustration purpose TV back view only for illustration purpose Outdoor Outdoor Outdoor Outdoor Outdoor antenna antenna antenna antenna antenna or Operation of TV Controls Operation of TV Controls Operati...

Page 6: ...channel number Note Note Note Note Note For selecting channels with three figures the CH SELECT CH SELECT CH SELECT CH SELECT CH SELECT function must be in DIRECT DIRECT DIRECT DIRECT DIRECT mode and the ANTENNA ANTENNA ANTENNA ANTENNA ANTENNA mode in CABLE CABLE CABLE CABLE CABLE Refer to Tuning Procedures Channel Selection and Antenna Mode 1 1 1 1 1 8 8 8 8 8 3 3 3 3 3 13 13 13 13 13 6 6 6 6 6 5...

Page 7: ...ill be set automatically to turn it OFF in 90 minutes Press any button to cancel the TIMER 4 To cancel the WAKE UP feature 4 1 Turn the unit OFF by using the power switch on the TV panel 4 2 Press the menu navigation buttons during the WAKE UP indication until OFF is displayed 4 3 Press the N Picture norm button while the WAKE UP mode is displayed 10 10 10 10 10 PIC MENU PIC MENU PIC MENU PIC MENU...

Page 8: ...AUTO FINETUNE SKIP OFF 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 CH ...

Page 9: ...OSITION ANTENNA CABLE AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 CH 5 PRESET CHSELECT POSITION ANTENNA CABLE AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF ANTENNA Mode ANTENNA Mode ANTENNA Mode ANTENNA Mode ANTENNA Mode Press the FUNC Function button and select ANTENNA in the PRESET menu ANTENNA screen 1 1 1 1 1 FUNC Press the VOLUME button to select TV or CABLE 2 2 2 2 2 MAIN MEN...

Page 10: ... Procedures Manual Tuning Mode Manual Tuning Mode Manual Tuning Mode Manual Tuning Mode Manual Tuning Mode Remote control Press the FUNC Function button and select MANUAL TUNE Manual tuning in the PRESETmenu Press the CHANNEL button to select the position you want to memorize Press the MAIN MENU button until the setup menu is no longer displayed MANUAL TUNE Manual tuning screen Select the desired ...

Page 11: ...ntrol Press the navigation button and adjust to improve picture quality CHANNEL 5 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 FINETUNE 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF CHANNEL Tuning Procedures Tuning Procedures Tuning Procedures Tuning Procedures Tuning Procedures Channel Skip Mode Chann...

Page 12: ...CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF 5 CH 5 PRESET CHSELECT DIRECT ANTENNA TV AUTOTUNE MANUALTUNE COLORSYS AUTO FINETUNE SKIP OFF Picture Menu Picture Menu Picture Menu Picture Menu Picture Menu Important Note Important Note Important Note Important Note Important Note If picture menu is active and the N Picture norm button is pressed picture s...

Page 13: ...ivated the screen will turn blue if there is no input of a TV station signal when the signal is weak or when the picture is excessively snowy To avoid excessive noise sound level is reduced to zero Press the navigation button to select ON Ö OFF Note Note Note Note Note This feature should be disabled by selecting OFF in the following situations 1 When the program signal is weak or when the picture...

Page 14: ... minutes 3 Press and hold the RECALL button 4 Press the CHANNEL button on the TV panel To exit Hotel mode Press the VOLUME button on the TV panel and the TIMER button on the remote control simultaneously cc cc cc cc cc IDIOMA PORTUGUÊS ESPAÑOL ENGLISH IDIOMA PORTUGUÊS ESPAÑOL ENGLISH LANGUAGE PORTUGUÊS ESPAÑOL ENGLISH Troubleshooting Chart Troubleshooting Chart Troubleshooting Chart Troubleshootin...

Page 15: ...TC 14A12P TC 20B12 15 IC601 TDA9381PS N2 3 Pins and Functions ...

Page 16: ...drive B output VDRA 22 vertical drive A output IFIN1 23 IF input 1 IFIN2 24 IF input 2 IREF 25 reference current input VSC 26 vertical sawtooth capacitor TUNERAGC 27 tuner AGC output AUDEEM SIFIN1 1 28 audio deemphasis or SIF input 1 DECSDEM SIFIN2 1 29 decoupling sound demodulator or SIF input 2 GND2 30 ground 2 for TV processor SNDPLL SIFAGC 1 31 narrow band PLL filter AGC sound IF AVL SNDIF REF...

Page 17: ... 34 0V 3 NC 35 3 8V 3 4 8V 35 1 9V 4 3 3V 36 4 4V 4 0V 36 3 3V 5 0V 37 2 8V 5 4 8V 37 2 2V 6 3 3V 38 3 2V 6 3 3V 38 3 2V 7 3 3V 39 7 8V 7 3 3V 39 5V 8 3 3V 40 4 5V 8 3 3V 40 2 7V 9 0V 41 0V 9 0V 41 0V 10 0V 42 4 5V 10 0V 42 2 4V 11 2 2V 43 0V 11 4 6V 43 0V 12 0V 44 3 5V 12 0V 44 2 2V 13 2 3V 45 0V 13 1 7V 45 0V 14 7 8V 46 0V 14 5 1V 46 0V 15 4 9V 47 0V 15 3 4V 47 0V 16 3 4V 48 0V 16 1 7V 48 0V 17 ...

Page 18: ...TC 14A12P TC 20B12 18 IC601 Block Diagram ...

Page 19: ... 0 243 0 01 y 0 255 0 01 Y 6 5 nit TC 20B12 High Light x 0 270 0 01 y 0 275 0 01 Y 155 nit Low Light x 0 245 0 01 y 0 235 0 01 Y 7 0 nit B Voltage Buzz PAL colour sign optput NTSC colour sign output Anode EHT voltage 002 007 009 010 008 TPA 12 TPA 11 TPA 10 TPA21 A22 2 or PA41 TPL2 TPL1 TPL1 CRT anode D C C 140 5 1 5 V 8 1 V 5 1 V 215 15 V 0 5 Vp p 2 45 0 1 Vo p 2 45 0 5 Vo p 1 2 0 5 Vo p 24 5 0 7...

Page 20: ...ST 21 R DR 19 G DR 31 B DR 38 RGB CONTRAST 6 OPTIONS PAR CHK4 OPTIONS ADJUSTMENTS IN THE CHK1 MODE ADJUSTMENTS IN THE CHK2 MODE ADJUSTMENTS IN THE CHK3 MODE To select the options press 4 to move forward and 3 to go back Select the option and make the adjustment pressing the VOL_ or VOL keys To memorize the adjustment press 0 CHK1 mode only NOTE ADJUSTMENTS IN THE CHK4 MODE CHK1 CHK2 CHK4 CHK3 To t...

Page 21: ...lation 2 2 Assure that the width in the buzzing waveform is smaller than 500 m Vp p ANODE AND HEATER VOLTAGE CONFIRMATION 1 PREPARATION 1 1 Receive a crosshatch pattern 2 2 Adjust the bunch current in zero 0 beam 3 3 Adjust SCREEN VR and CONTRAST to minimum 2 CONFIRMATION 2 1 Connect a voltage meter between TPA12 and ground Confirm that the voltage B is within a range of 140 5V 1 5V 2 2 Connect a ...

Page 22: ... purity pattern 1 3 Adjust CONTRAST and BRIGHT controls to maximum 1 4 Previously adjust the CONVERGENCE 1 5 Fully degauss the CRT by using an external degaussing coil 2 CALIBRATION 2 1 Adjust the magnetic field in 0 4x10 4T 400 mG and check the white quality with the CRT turned to EAST and to WEST 2 2 Receive a red pattern adjust the COLOR control to maximum and confirm the purity adjustment 2 3 ...

Page 23: ...the face of CRT Assure that the CUT OFF voltage calibration has been done If the value in the color analyzer is below Y H date adjust CONTRAST for 32 and connect a short circuit jumper between TPA10 and TPA20 A B C D 130V 0V 2 CALIBRATION 1 LOW LIGHT CALIBRATION 1 Adjust S BRT so that Y Y L 2 Adjust R CUT OFF so that x x L 3 Adjust G CUT OFF so that y y L 2 HIGH LIGHT CALIBRATION 1 Adjust S BRT so...

Page 24: ...Contrast control to the maximum position 2 Adjust Bright control to obtain a clear pattern 3 Remove the DY wedges and slightly tilt the deflection yoke to the vertically and horizontally to obtain the good overall convergence 4 Fix the deflection yoke by reinserting the DY wedges as showed below 5 If purity error is found repeat Color Purity adjustment Notes Wedge A showed above should be fixed wi...

Page 25: ... EEPROM X A0 address 0XX EEPROM X A2 address 1XX 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 02 00 A5 5A 00 01 00 00 00 08 00 04 00 00 01 00 10 00 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 20 20 20 3F 2D 20 20 20 2D 20 1E 20 20 23 20 ...

Page 26: ...TC 14A12P TC 20B12 26 Main Board Schematic Diagram TC 14A12P TC 20B12 ...

Page 27: ...TC 14A12P TC 20B12 27 CRT Board Schematic Diagram ...

Page 28: ...TC 14A12P TC 20B12 28 Main Board Conductor View left component side 1 2 3 4 5 6 A B C D ...

Page 29: ...TC 14A12P TC 20B12 29 Main Board Conductor View right component side A 1 2 3 4 5 6 B C D ...

Page 30: ...TC 14A12P TC 20B12 30 Main Board Conductor View left foil side A 1 2 3 4 5 6 B C D ...

Page 31: ...TC 14A12P TC 20B12 31 Main Board Conductor View right foil side A 1 2 3 4 5 6 B C D ...

Page 32: ...TC 14A12P TC 20B12 32 IC601 Waveform All the waveforms had read with 127V power source and receiving a colorbar pattern Pino 21 Pino 22 Pino 33 Pino 34 Pino 38 Pino 40 ...

Page 33: ...TC 14A12P TC 20B12 33 Pino 42 Pino 51 Pino 52 Pino 53 IC601 TNR001 Pino SCL Pino SDA ...

Page 34: ...TC 14A12P TC 20B12 34 IC451 X101 Q501 Q551 Pino 01 tensão de rede 127V Pino 01 tensão de rede 220V Pino 02 Pino 01 IC801 Coletor Coletor ...

Page 35: ...TC 14A12P TC 20B12 35 Parts Location ...

Page 36: ...E HOLDER 15 TXFKY20B12 TXFKY14A12P ASSEMBLED CABINET 16 TKK2B0309 TKK2B0307 LED GUIDE 17 TXF3A20C7 1 TXF3A14C7 MALHA P ATERRAMENTO 18 TKP2B11191 2 TKP2B11221 LENS PANEL 19 TZGNPAL20B12 TZGNPAL14A12P ASSEMBLED PCB 20 TEDH9 301A TEDH9 301A TUNER 21 330550044K2F 330620065 CRT SOCKET 22 TXITKU2B21403 5 TXITKU2B22301 1 REAR COVER 23 TJB16664 TJB16664 AV TERMINAL JK3001 24 KFT3AA428F KFT2AA427F FLY BACK...

Page 37: ...CAP CER SMD 47 nF 50 0 V C628 ECJ2YB1H473K ECJ2YB1H473K CAP CER SMD 47 nF 50 0 V C629 ECJ2YB1H104K ECJ2YB1H104K CAP CER SMD 100 nF 50 0 V C631 ECJ2VB1H222K ECJ2VB1H222K CAP CER SMD 2 200 PF 50 0 V C633 ECJ2VF1C105Z ECJ2VF1C105Z CAP CER SMD 1 µF 16 0 V C634 ECJ2VF1C105Z ECJ2VF1C105Z CAP CER SMD 1 µF 16 0 V C635 ECJ2VF1H104Z ECJ2VF1H104Z CAP CER SMD 100 nF 50 0 V C636 ECEA1CKA101B ECEA1CKA101B CAP E...

Page 38: ...I RECEPTOR COTROL REMOTO IC1201 PQ1R33 PQ1R33 CIRCUITO INTEGRADO SMD REG 3V IC1202 AN7805LB AN7805LB IC REGULADOR DE VOLTAGEM 4 V IC2301 LA4289N LA4289N CIRCUITO INTEGRADO SAÍDA DE AUDIO JA2 ERJ3GEY0R00V ERJ3GEY0R00V RES METALIC FILM SMD 0 Ω JA3 ERJ3GEY0R00V ERJ3GEY0R00V RES METALIC FILM SMD 0 Ω JA4 ERJ3GEY0R00V ERJ3GEY0R00V RES METALIC FILM SMD 0 Ω JA5 ERJ3GEY0R00V ERJ3GEY0R00V RES METALIC FILM S...

Page 39: ...TOR 10 Ω 1 4 W R520 ERX12SJ3R0E o RES METALIC FILM 3 Ω 1 2 W R520 o ERX12SJ3R3E RES METALIC FILM 3 30 Ω 1 2 W R521 ERX12SJ3R0E o RES METALIC FILM 3 Ω 1 2 W R521 o ERX12SJ3R3E RES METALIC FILM 3 30 Ω 1 2 W R522 ERJ3GEYJ123V ERJ3GEYJ123V RES METALIC FILM SMD 12 kΩ 1 10 W R523 ERJ3GEYJ103V ERJ3GEYJ103V RES METALIC FILM SMD 10 kΩ 1 10 W R524 ERJ3GEYJ104V ERJ3GEYJ104V RES METALIC FILM SMD 100 kΩ 1 10 W...

Page 40: ...RJ3GEYJ562V RES METALIC FILM SMD 5 60 kΩ 1 10 W R2022 ERJ3GEYJ104V ERJ3GEYJ104V RES METALIC FILM SMD 100 kΩ 1 10 W R2301 ERJ3GEYJ562V ERJ3GEYJ562V RES METALIC FILM SMD 5 60 kΩ 1 10 W R2304 ERDS2TJ222T ERDS2TJ222T RES CARBONO 2 20 kΩ 1 4 W R2305 ERQ2CJP8R2S ERQ2CJP8R2S FUSISTOR 8 20 Ω 2 W R2310 ERDS2TJ1R0T ERDS2TJ1R0T RES CARBONO 1 Ω 1 4 W R2318 ERJ3GEYJ332V ERJ3GEYJ332V RES METALIC FILM SMD 3 30 k...

Page 41: ......

Page 42: ...Panasonic do Brasil Ltda CS GROUP TECHNICAL SUPPORT ...

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