Panasonic TC-20B12, TC-14A12P service manual Service Adjustments and Calibrations

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TC-14A12P / TC-20B12

Service Adjustments and Calibrations

TO ENTER IN THE SERVICE MODE:

1.Adjust the volume for the minimum.

2.Adjustment the “OFF TIMER” function for 30 minutes.

3.Simultaneously press the “RECALL“ button of the remote control unit and the “VOLUME DOWN“ button on the TV set. After some seconds, the TV enters the SERVICE MODE and the “CHK1 ” expression should appear on the screen.

TO EXIT SERVICE MODE AND RETURN TO THE NORMAL

STATE:

Press the “NORMAL” key on the remote control unit or turn off the unit.

HOW TO OPERATE THE “DAC” CONTROLS IN THE BR3L CHASSIS

CHK1←→CHK2

− −

↓ ↓

CHK4←→CHK3

To change from “CHK1” to “CHK2” mode and following, press “2” to move forward and “1” to go back.

ADJUSTMENTS IN THE CHK1 MODE:

CHK1 OPTIONS

OPTIONS

PAR

 

 

1

C 1

2

0

0

3

0

0

4

3

3

5

8

0

6

0

0

7

0

0

8

0

0

ADJUSTMENTS IN THE CHK3 MODE:

CHK3 OPTIONS

OPTIONS

PAR

 

 

V-SLOPE

37

V-SHIFT 50Hz

2

V-SHIFT 60Hz

1

V-AMP 50Hz

16

V-AMP 60Hz

16

H-SHIFT

36

S-CORR 50Hz

18

S-CORR 60HZ

18

V-ZOOM 50 Hz

5

V-ZOOM 60 Hz

7

OSD H-POS

3

OSD V-POS 50 Hz

28

OSD V-POS 60 Hz

21

ADJUSTMENTS IN THE CHK2 MODE:

CHK2 OPTIONS

OPTIONS

 

PAR

 

 

 

RF-AGC

 

31

CONTRAST

 

63

COLOUR

 

32

SUB-COLOUR

 

32

NTSC-TINT

 

32

SUB-NTSC-TINT

 

30

BRIGHT

 

32

ADJUSTMENTS IN THE CHK4 MODE:

 

 

CHK4 OPTIONS

 

 

 

OPTIONS

 

PAR

 

 

 

R-CUT

 

31

G-CUT

 

32

BRIGHT

 

32

SUB-BRIGHT

 

31

CONTRAST

 

63

SUB-CONTRAST

 

21

R-DR

 

19

G-DR

 

31

B-DR

 

38

RGB CONTRAST

 

6

NOTE:

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).

• To turn off AKB (blue OSD), press “5” . To turn on AKB (white OSD), press “5” of the remote control unit.

• After end of the adjustments, press the “ NORMAL” key “ or turn of the unit to return to the normal mode of TV.

To do data memory maintenance, simultaneously press “ MUTE” on the remote control and “VOL _on the TV set when it is in SERVICE MODE . To select the memory address, press “4” to move forward or “3” to go back.)

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Contents TC-14A12P TC-20B12 Contents Back view Operation GuideFront view Battery replacement precautions Location of Controls Remote ControlInstalling the Batteries Outdoor Antenna Connection Installation Operation of TV ControlsConnection General Operation Picture Menu Button Tune ButtonMain Menu Button WAKE-UP ButtonChannel Selection Tuning ProceduresMain Menu List Channel Selection Mode Antenna ModeOperation Channel CapabilityManual Tune Auto Tuning ModeManual Tuning Mode Fine Tuning Mode Channel Skip ModeGuide Channe LSupplementary Remote Control Operations Color System ModePicture Menu Important NoteFeatures Menu Sound MenuTroubleshooting Chart Hotel ModeCc on Mute Mute/Closed Caption No Ö C1 LanguageIC601 TDA9381PS/N2/3 Pins and Functions IC601 Pins and Functions Nome DescriçãoIC601 / IC451 Voltage Table VddpIC601 Block Diagram Configuration General SummaryService Adjustments and Calibrations Test Equipment Ntsc SUB-TINT Calibration White Quality Calibration CRT CenterCRT CUT OFF Calibration Color Purity Adjustment Convergence Calibration Power Source Voltages Main Board Schematic Diagram TC-14A12P / TC-20B12 CRT Board Schematic Diagram Main Board Conductor View left / component side Main Board Conductor View right / component side Main Board Conductor View left / foil side Main Board Conductor View right / foil side Waveform TNR001 IC801 Parts Location Packing and Acessories Replacement Mechanical Parts List TC-20B12 TC-14A12PReplacement Electrical Parts List MTZJT-7716A MTZJT-7730DMA152KTX Diodo Chaveamento SMD Diodo ChaveamentoTransistor DE Potência NPN 2SB792ATX Transistor SMD PNP 0,2 WTransistor DE Potencia ERG3FJ822HERQ12HKR68P ERQ12HJ1R5PERQ12HKR82P ERDS1TJ223TPage CS Group Technical Support