Panasonic TC-21FX30LA Service Manual
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Panasonic TC-21FX30LA Service Manual

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Service Manual

Specifications

Model :
Power source :
Consumption :
Antenna IN/OUT jack :
Color system :
Channel capability :
Intermediate Frequency :
Audio and Video Terminals :
Input :
Output :
High Voltage :
Picture Tube :
Audio Output :
Dimensions (HxWxD)
Weight:
TC-21FX30LA / TC-21FX30LP
127V / 220V AC Auto, 50/60Hz
67W
75Ω - VHF / UHF / CATV
PAL-M / NTSC / PAL-N
VHF: 2 ~13 - UHF: 14 ~ 69 - CATV: 1 ~ 125
Video: 45,75 MHz
Audio: 41,25 MHz
Color: PAL-M: 3,575 MHz
PAL-N:3,582 MHz
NTSC: 3,579 MHz
DVD: AV1, AV2,DVD
Y: 1,0Vp-p, 75Ω
PB: 0,7Vp-p, 75Ω
PR: 0,7Vp-p, 75Ω
Audio: 400mVrms / Video: 1,0 Vp-p 75Ω
Audio: 400mVrms / Video: 1,0 Vp-p 75Ω
27,5 ± 1,5 kV
(at zero beam
PANABLACK 21", 53 cm (NBR5258) 51cm
measured diagonally
8W + 8W (RMS)
648 x 472 x 488mm
23,8 kg
Specifications are subject to change without prior notice.
Mass and dimensions shown are aproximated.
TC-21FX30LA
TC-29FX30LA
TC-21FX30LP
TC-29FX30LP
Chassis GP41
TC-29FX30LA / TC-29FX30LP
127V / 220V AC Auto, 50/60Hz
98W
75Ω - VHF / UHF / CATV
PAL-M / NTSC / PAL-N
VHF: 2 ~13 - UHF: 14 ~ 69 - CATV: 1 ~ 125
Video: 45,75 MHz
Audio: 41,25 MHz
Color: PAL-M: 3,575 MHz
DVD: AV1, AV2,DVD
Y: 1,0Vp-p, 75Ω
PB: 0,7Vp-p, 75Ω
PR: 0,7Vp-p, 75Ω
Audio: 400mVrms / Video: 1,0 Vp-p 75Ω
Audio: 400mVrms / Video: 1,0 Vp-p 75Ω
current)
31,0 ± 1,5 kV
PANABLACK 29", 74 cm (NBR5258) 68 cm
measured diagonally
8W + 8W (RMS)
786 x 578 x 508mm
42,7 kg
ORDER DCS - MAY2006 - 008LA - MS
PAL-N:3,582 MHz
NTSC: 3,579 MHz
(at zero beam
current)
© 2006 Panasonic do Brasil Limitada
CS Division
Technical Support

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Summary of Contents for Panasonic TC-21FX30LA

  • Page 1: Service Manual

    Dimensions (HxWxD) 648 x 472 x 488mm 786 x 578 x 508mm Weight: 23,8 kg 42,7 kg Specifications are subject to change without prior notice. Mass and dimensions shown are aproximated. © 2006 Panasonic do Brasil Limitada CS Division Technical Support...

  • Page 2: Table Of Contents

    MAIN BOARD CIRCUIT LAYOUT ..........29 31kV without causing X-ray radiation. “L” BOARD SCHEMATIC DIAGRAM (TC-21FX30LA / LP) ..30 Before returning a serviced receiver to the owner, the service “L” BOARD SCHEMATIC DIAGRAM (TC-29FX30LA / LP) ..31 technician must thoroughly test the unit to ensure that is completely safe to operate.

  • Page 3: About Lead Free Solder (Pbf)

    TC-21FX30LA/LP / TC-29FX30LA/LP ABOUT LEAD FREE SOLDER (PbF) Note: In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that contains lead. We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn), Silver, (Ag), and Copper, (Cu).

  • Page 4: Safety Precautions

    TC-21FX30LA/LP / TC-29FX30LA/LP SAFETY PRECAUTIONS General Guide Lines 1. It is advisable to insert an insulation transformer in the AC supply before servicing this hot chassis. 2. When servicing, observe the original lead dress, especially the lead dress in the high voltage circuits. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

  • Page 5: Gp41 Chassis Feature Summary

    TC-21FX30LA/LP / TC-29FX30LA/LP GP41 CHASSIS FEATURE SUMMARY CHASSIS : GP41 MODEL : TC-21FX30LA, TC-21FX30LP, TC-29FX30LA and TC-29FX30LP SYSTEM : 3 system (PAL-M/PAL-N/NTSC) (PAL-M 50Hz) POWER SOURCE : CA automatic power switching (127/220)V, 50/60Hz MEMORY : 125 positions TV TUNING RANGE...

  • Page 6: Ic601 - Block Diagram

    TC-21FX30LA/LP / TC-29FX30LA/LP IC601 - BLOCK DIAGRAM IFIN+ Sound Audio Frontend Processor Demodulator Processor IFIN- 656 out PROT HOUT HFLB VERT Comb Color CVBS in Display & Filter Decoder YCbCr in Video Panorama Video Deflection Frontend Scaler Backend RGB in...
  • Page 7 TC-21FX30LA/LP / TC-29FX30LA/LP Name Type Description VIN11 Analog Video 11 Input VIN10 Analog Video 10 Input VIN9 Analog Video 9 Input VIN8 Analog Video 8 Input VIN7 Analog Video 7 Input VIN6 Analog Video 6 Input VIN5 Analog Video 5 Input...

  • Page 8: Voltage Tables

    TC-21FX30LA/LP / TC-29FX30LA/LP VOLTAGE TABLES - TC-21FX30LA / LP IC601 IC451 IC801 IC802 IC851 Voltage Voltage Voltage Voltage Voltage Voltage Voltage 200V 142V 2,8V 0,4V 13,6V 0,2V 7,2V 7,5V 8,73 21,5V -13,5V -13,6V 2,0V 4,7V 8,6V 0,2V 1,3V 0,5V 1,8V...

  • Page 9: Gp41 Chassis Block Diagram

    TC-21FX30LA/LP / TC-29FX30LA/LP GP41 CHASSIS BLOCK DIAGRAM - 9 -...

  • Page 10: Service Hints

    3. Remove the A-Board from the TV set by pulling the main board out as shown in Figure 2. Pull out this way Main Board Fig. 2 FACTORY MODE ADJUSTMENT (TC-21FX30LA/LP / TC-29FX30LA/LP) HOW TO ENTER IN THE GP41 SERVICE MODE: à TO ENTER IN THE SERVICE MODE 1: Adjust “OFF TIMER”...

  • Page 11: How To Operate The Controls In Service Mode

    TC-21FX30LA/LP / TC-29FX30LA/LP à How to operate the controls in the SERVICE MODE 1 SERVICE MODE 1 ITEM 21” 29” Key 3 / 4 Previous / next item H-POS Key 8 / 9 Ajusts bright (user) (–/+) V-POS UP/DOWN Channel Up / Channel Down...

  • Page 12: How To Access The Memory Maps

    TC-21FX30LA/LP / TC-29FX30LA/LP à How to access the Memory Maps (TC-21FX30LA / LP, TC-29FX30LA / LP) 7. The “ ∧ ∧ ∧ ∧ ∧ ” and “ ∨ ∨ ∨ ∨ ∨ ” channel key changes the page one by 1.
  • Page 13 TC-21FX30LA/LP / TC-29FX30LA/LP TC-21FX30LA / LP - TABLE A4 C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...
  • Page 14 TC-21FX30LA/LP / TC-29FX30LA/LP TC-21FX30LA / LP - TABLE A8 C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...
  • Page 15 TC-21FX30LA/LP / TC-29FX30LA/LP TC-21FX30LA / LP - TABLE AC C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...
  • Page 16 TC-21FX30LA/LP / TC-29FX30LA/LP TC-29FX30LA / LP TC-29FX30LA / LP - TABLE A0 C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...
  • Page 17 TC-21FX30LA/LP / TC-29FX30LA/LP TC-29FX30LA / LP - TABLE A4 C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...
  • Page 18 TC-21FX30LA/LP / TC-29FX30LA/LP TC-29FX30LA / LP - TABLE A8 C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...
  • Page 19 TC-21FX30LA/LP / TC-29FX30LA/LP TC-29FX30LA / LP - TABLE AC C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N C O L U M N...

  • Page 20: Colour Purity And Convergence Adjustment

    TC-21FX30LA/LP / TC-29FX30LA/LP Before Colour Purity, Convergence and White Balance adjustment are attempted, V. Height, H. Centre and Focus adjustments must be completed. Colour Purity Convergence 1. Set the Brightness and Contrast controls to their maximum 1. Apply a crosshatch pattern signal and Normalize Contrast positions.
  • Page 21 TC-21FX30LA/LP / TC-29FX30LA/LP R-B Static Convergence Magnet Clamp for Convergence & Puritymagnet Purety Magnet (R-B)-G Static Deflection Yoke Convergence Magnet Fig.11 Wedge A Wedge B Wedge C Fig.12 Notes: 1. Wedge A, B and C should be inserted following the sequence of 1, 2 and 3 shown in Fig. 12.

  • Page 22: Crt Vrs Adjustment

    TC-21FX30LA/LP / TC-29FX30LA/LP CRT VRS ADJUSTMENT 1. Preparation a. Set DY to CRT not to tilt up and down left and right deflection. b. Set CY to CRT and set CY magnet primarily (Fig. 9) Purity magnet : Set purity magnet that 2 magnets are (TOP POSITION) VRS magnet : Set purity magnet 2 magnets are (HORIZONTAL POSITION) 2.

  • Page 23: Rf Agc Adjustment

    TC-21FX30LA/LP / TC-29FX30LA/LP ADJUSTMENTS ITEM / PREPARATION PROCEDURE ADJUSTMENT: 1- RF AGC ADJUSTMENT 1. Select “RF AGC” on “CHK2” service mode. 1. Supply a color bar PHILIPS pattern and adjust the RF 2. Adjust "RF AGC" by pressing VOL(+) or (-) until obtaining input signal of 69 dB mV (75W opened channel 7 RF 2.2±0.1V in TPA15.

  • Page 24: Pal Color Output Signal Adjustment

    TC-21FX30LA/LP / TC-29FX30LA/LP ADJUSTMENTS ITEM / PREPARATION PROCEDURE 5- PAL COLOR OUTPUT SIGNAL ADJUSTMENT CALIBRATION: 1. Supply a color bar signal and adjust the local frequency. 1. Connect the oscilloscope in TPL2 (G-OUT) with a 10KΩ 2. Adjust “IMAGE” to DYNAMIC NORMAL, “CONTRAST” to resistor and adjust “CONTRAST”, so that the [B] waveform...

  • Page 25: Sub-Bright And Sub-Contrast Calibration

    TC-21FX30LA/LP / TC-29FX30LA/LP ADJUSTMENTS ITEM / PREPARATION PROCEDURE 8- SUB-BRIGHT AND SUB-CONTRAST SUB-BRIGHT CALIBRATION CALIBRATION 1. Position the color analyzer in the LOW LIGHT image area. Supply a WINDOW pattern signal 2. Ajust S-BRT <CHK 4> control, so that it is Y=0,7±0,2.

  • Page 26: White Quality Calibration

    TC-21FX30LA/LP / TC-29FX30LA/LP ADJUSTMENTS ITEM / PREPARATION PROCEDURE CALIBRATION: WHITE QUALITY CALIBRATION 1. Adjust the magnetic field in 0.4x10-4T (400 mG), and check the white quality with the CRT turned to EAST and PREPARATION: to WEST. 2. Receive a red pattern, adjust the COLOR control to 1.

  • Page 27: Deflection Calibration And Confirmation

    TC-21FX30LA/LP / TC-29FX30LA/LP ADJUSTMENTS ITEM / PREPARATION PROCEDURE ADJUST AND CONFIRMATION DEFLECTION CALIBRATION AND CONFIRMATION (SERVICE MODE 1) 50Hz 1) V-CENTER 50Hz adjustment. (SERVICE MODE 3) 60Hz Supply a PHILIPS PAL-N signal Mode 4:3 - 21” and 29” CRT 2. Adjust V-POS to align the pattern center with the CRT center in vertical position.
  • Page 28 TC-21FX30LA/LP / TC-29FX30LA/LP ADJUSTMENTS ITEM / PREPARATION PROCEDURE DEFLECTION CALIBRATION AND CONFIRMATION ADJUST AND CONFIRMATION (SERVICE MODE 1) 50Hz (continuation) (SERVICE MODE 3) 60Hz Mode 4:3 - 21” and 29” CRT 9) EW adjustment and confirmation . (continuation) Supply a PHILIPS PAL-N signal 2.

  • Page 29: Main Board Circuit Layout

    TC-21FX30LA/LP / TC-29FX30LA/LP MAIN BOARD CIRCUIT LAYOUT - 29 -...

  • Page 30: L" Board Schematic Diagram (Tc-21Fx30La / Lp)

    TC-21FX30LA/LP / TC-29FX30LA/LP “L” BOARD SCHEMATIC DIAGRAM (TC-21FX30LA / LP) - 30 -...

  • Page 31: L" Board Schematic Diagram (Tc-29Fx30La / Lp)

    TC-21FX30LA/LP / TC-29FX30LA/LP “L” BOARD SCHEMATIC DIAGRAM (TC-29FX30LA / LP) - 31 -...

  • Page 32: G" Board Schematic Diagram (Tc-29Fx30La / Lp)

    TC-21FX30LA/LP / TC-29FX30LA/LP “G” BOARD SCHEMATIC DIAGRAM (TC-29FX30LA / LP) - 32 -...

  • Page 33: A" Board Schematic Diagram (Tc-21Fx30La / Lp)

    “A” BOARD SCHEMATIC DIAGRAM (TC-21FX30LA / TC-21FX30LP) TC-21FX30LA / TC-21FX30LP...

  • Page 34: A" Board Schematic Diagram (Tc-29Fx30La / Lp)

    “A” BOARD SCHEMATIC DIAGRAM (TC-29FX30LA / TC-29FX30LP) TC-29FX30LA / TC-29FX30LP...

  • Page 35: Waveform Chart

    TC-21FX30LA/LP / TC-29FX30LA/LP WAVEFORM CHART • All waveforms were obtained using 127V 60Hz power source and Color Bars Pattern. TC-21FX30LA / LP / TC-29FX30LA / LP IC601 Pino 16 Pino 17 Pino 25 Pino 71 Pino 72 Pino 73 - 35 -...
  • Page 36 TC-21FX30LA/LP / TC-29FX30LA/LP IC451 Pino 1 Pino 3 Pino 5 Pino 7 IC801 Pino 1 - 36 -...
  • Page 37 TC-21FX30LA/LP / TC-29FX30LA/LP Q501 Base Coletor Q551 Coletor - 37 -...

  • Page 38: Exploded View

    TC-21FX30LA/LP / TC-29FX30LA/LP EXPLODED VIEW 24 24 - 38 -...

  • Page 39: Mechanical Parts List

    TBM4G9152 TBM4G9154 CONTROL PANEL EUR7717040R EUR7717040R REMOTE CONTROL K2JZ2B000021 K2JZ2B000021 BALLUM TSX2BA04-1 TSX2BA04-2 AC POWER CORD (TC-21FX30LA and TC-29FX30LA) TSX2BA06-1 TSX2BA06-2 AC POWER CORD (TC-21FX30LP and TC-29FX30LP) TKK4G8599 TKK4G8599 VIBRATION ABSORBER SUPPORT TXFKY21FX30L-CS TXFKY29FX30L-CS CABINET ASSEMBLED TMZ4G9824 ----------- o ----------- P.C.B.

  • Page 40: Electrical Parts List (Tc-21Fx30La/Lp)

    TC-21FX30LA/LP / TC-29FX30LA/LP REPLACEMENT ELECTRICAL PARTS LIST - TC-21FX30LA / LP Part No. Part name & description Ref. No. Part No. Part name & description Ref. No. C634 ECJ2VC1H471J CERAMIC CAP. 470PF 50V C635 F2A1C101A310 ELECTROLYTIC CAP. 100µF 16V ASSEMBLED P.C.B.
  • Page 41 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. C2329 F1J1E474A101 CERAMIC CAP. 470nF 25V IC860 B3PAA0000363 PHOTO COUPLER C3023 ECJ2VF1C105Z CERAMIC CAP. 1µF 16,0 V IC871 C0DAEJG00001 VOLTAGE REGULATOR IC...
  • Page 42 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. FERRITE Z= 100 Ω( 100MHZ) L867 J0JKB0000039 R391 ERG2FJ103H RESISTOR 10kΩ 2W FERRITE Z=80 Ω(100 MHZ); I=6A L869 J0JKA0000038 R392 ERJ6GEYJ101V RESISTOR 100Ω...
  • Page 43 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. R664 ERDS2T0T RESISTOR 0Ω 1/4 W R2318 D0AE1R0JA046 RESISTOR 1Ω 1/4W R665 ERDS2T0T RESISTOR 0Ω 1/4 W R2319 D0AE1R0JA046 RESISTOR 1Ω 1/4W...

  • Page 44: Electrical Parts List (Tc-29Fx30La/Lp)

    TC-21FX30LA/LP / TC-29FX30LA/LP REPLACEMENT ELECTRICAL PARTS LIST - TC-29FX30LA / LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. MAIN P.C.B. C627 F2A1C101A310 ELECTROLYTIC CAP. 100µF 16,0 V PCI1 PA29FX30LAMON “A” BOARD ASS´Y (TC-29FX30LA)
  • Page 45 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. C958 F2A2C470A030 ELECTROLYTIC CAP. 47µF 160,0 V D846 B0BA8R000010 ZENER DIODE 18,0 V 20,0 mA C959 F1B2H1030028 CERAMIC CAP. 10nF 500,0 V...
  • Page 46 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. JS104 ERJ6GEY0R00V RESISTOR 0Ω 1/8 W TRANSISTORS JS105 ERJ6GEY0R00V RESISTOR 0Ω 1/8 W Q301 B1GFCFAA0004 TRANSISTOR NPN 50,0 V 100,0 mA...
  • Page 47 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. R368 ERDS1TJ152T RESISTOR 1,50 kΩ 1/2 W R656 ERJ6GEYJ823V RESISTOR 82kΩ 1/8 W R369 ERJ6GEY0R00V RESISTOR 0Ω 1/8 W R658 D0AE470JA046 RESISTOR 47Ω...
  • Page 48 TC-21FX30LA/LP / TC-29FX30LA/LP Part No. Part name & description Part No. Part name & description Ref. No. Ref. No. R972 D0AE390JA046 RESISTOR 39Ω 1/4 W SW1025 EVQ11G05R SWITCH R973 D0AE101JA046 RESISTOR 100Ω 1/4 W SW1026 EVQ11G05R SWITCH R975 ERJ6GEYJ101V RESISTOR 100Ω 1/8 W...
  • Page 49 Panasonic do Brasil Limitada CS DIVISION - TECHNICAL SUPPORT Rod. Presidente Dutra, Km 155 São José dos Campos - SP BRAZIL...

This manual is also suitable for:

Tc-29fx30laTc-21fx30lpTc-29fx30lp

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