Panasonic TC-20B10P Video OUT Adjustment, SUB-CONTRAST Adjustments, COLOUR-SATURATION Adjustment

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Service Adjustments and Calibrations

TC-14B10P / TC-20B10P

VIDEO OUT ADJUSTMENT

1- REQUIRED EQUIPMENT

1.1- Oscilloscope

1.2- Attenuator

2- PREPARATION

2.1- Apply a COLORBAR patten.

2.2- Adjust the input signal level to 75dB (75Ω open). 2.3- Connect the test tip of oscilloscope to TPE11

3- ADJUSTMENTS

3.1- Select DAC VIDEO (VID) CHQ4 (Service Mode). 3.2- Adjust the video signal level to 1,0±0,05Vo-p using

the keys VOL(+) and VOL(_).

1,0Vo-p

SUB-CONTRAST ADJUSTMENTS

1- REQUIRED EQUIPMENT

1.1- Oscilloscope

1.2- Jumper

1.3- Attenuator

2- PREPARATION

2.1- Tune a COLORBAR patten.

2.2- Adjust the input signal level to 75dB (75Ω open ) 2.3- Connect the jumper between TPE3 and ground 2.4- Connect the oscilloscope between TPE27 and

ground.

2.5- Confirm if Picture Menu is “DYNAMIC”.

2.6- Position the controls at the following positions:

GLOW LIGHT (G-CUT)…...125H BRIGHT……………………..CENTER CONTRAST…………………NORMAL OR MAX. COLOUR…………………….MINIMUM

3- CALIBRATION

3.1- Select DAC SUB BRIGHT (SUB BR) CHQ2.

3.2- Adjust SUB BR until you have a level of 2,2±0,1Vp-p and confirm if there is no deformation of waveform.

3.3- Select DAC SUB-CONTRAST, CHQ2.

3.4- Adjust SUB-CONTRAST level to 2,9±0,1Vp-p at TPE27, as figure below.

Ajusted by Sub-Contraste 2,9 ± 0,1 Vp-p

Pedestal level Ajusted by Sub-Bright

2,2 ± 0,1 Vp-p

GND

COLOUR-SATURATION ADJUSTMENT

1- REQUIRED EQUIPMENT

1.1- Oscilloscope

1.2- Jumper

2- PREPARATION

2.1- Tune a COLORBAR patten.

2.2- Adjust the input signal level to 75dB (75Ω Open). 2.3- Confirm that the Picture Menu is “DYNAMIC” 2.4- Confirm that channel colour is “NORMAL”

2.5- Confirm that temperature of colour is “NORMAL”

2.6- Connect oscilloscope between TPE27 and ground

2.7- Connect the jumper between TPE3 and ground

2.8- Position controls at the following positions:

GLOW LIGHT (G-CUT)… 25H BRIGHT………….......……NORMAL OR CENTER CONTRAST…………….... NORMAL OR MAX. COLOUR………………… NORMAL OR CENTER

3- ADJUSTMENTS

3.1- Select DAC SUB BRIGHT at CHQ2.

3.2- Adjust SUB BRIGHT to make the pedestal level remain 2,2±0,1Vp-p and confirm that there is no deformation of waveform.

3.3- Select DAC SUB-COLOUR at CHQ2.

3.4- Adjust SUB- COLOUR level to 2,5±0,1Vp-p at TPE27, as shown on figure below:

Adjusted by Sub-Color 2,5±0,1 Vp-p

Pedestal level Adjusted by Sub-Bright

2,2±0,1 Vp-p

GND

SHARPNESS ADJUSTMENT

1- PREPARATION

1.1- Select sharpness control using Menu IMAGE

1.2- Adjust the control SHARPNESS to center.

2- ADJUSTMENTS

2.1- Select DAC SUB-SHARPNESS at CHQ2.

2.2- Adjust SUB SHARPNESS to(*) using the remote control.

(*)………14”=17H

(*)………20”=1BH

2.3- Press key “N” to exit SERVICE mode.

SHUT DOWN SYSTEM CONFIRMATION

1- REQUIRED EQUIPMENT

1.1- DC power source

1.2- Voltmeter

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Contents TC-14B10P TC-20B10P TV ModelImportant Safety Notice HOW to Open the CabinetOperation Guide Operation Guide English Service Adjustments and Calibrations HOW to Operate the DAC Control MX5Y Functions AdjustmentsInspection of the Deflection Circuits and PRE-ADJUSTMENTS Electrical InspectionCUT OFF PRE Adjustments Calibration of Video ifNoise Level Adjustments AFT AdjustmentsAGC-RF Adjustments AdjustmentsCOLOUR-SATURATION Adjustment Video OUT AdjustmentSUB-CONTRAST Adjustments Sharpness AdjustmentVertical Height and Centering Adjustments Horizontal Width and Centering AdjustmentsWhite Balance PRE Adjustment and CRT CUT OFF Adjustment Front Panel Checking Focus AdjustmentAV in Terminals Checking Tune Checking Automatic and Manual MemorizationAudio Checking Dynamic Convergence Adjustment Purity and Convergence AdjustmentsVerify Purity Adjustment with the Help of a Microscope Schematics Diagrams IC601 Block Diagram IC601 Pins and FunctionsHOW to Obtain Wave Forms Wave Forms / Formas de Onda 01 toWave Forms / Formas de Onda 13 to Como obtener las formas de ondaCabinet Parts Location Vista por ExplosiónLista de Piezas Mecánicas Cabinet Replacement Parts ListDescription Part NO. to TC-14B10P Part NO. to TC-20B10P Assembled Main Board / Placas Montadas Replacement Parts ListLista de Piezas Capacitors / CondensadoresJumpers Diodes / DiodosIntegrated Circuits / Circuitos Integrados BobinasTransistors / Transistores Resistors / ResistenciasTuner / Selector DE Canales Transformers TransformadoresCrystals / Osciladores TC-20B10P Coils / Bobinas DIODE, Zener 2,4Transistors Transistores ERG2ANJ150 RES, Metal Oxido 15 Ohms 2 W Manual de Servicio ModeloAtención AtenciónComo Abrir EL Gabinete Guia Rápido de Operación Guia Rápido de Operación Español Ajuste y Calibración Como Operar EL Control DAC MX5Y Ajuste DE FuncionesInspección Electrica Inspeción DEL Circuito DE Deflexión Y PRE AjustesPRE Ajuste DEL CUT OFF Calibracción DE FI DE VideoAjuste DEL Nivel DE Zumbido Ajuste DEL AGC DE RFAjuste DE AFT Ajuste DE LA Saturación Ajuste DEL Vídeo OUTAjuste DEL SUB-CONTRASTE Ajuste DE SUB-NITIDEZ Y NitidezAjuste DE LA Altura Vertical Y Centralización Vertical Ajuste DE Centro Horizontal HC Y Largura HorizontalPRE Ajuste DEL White Balance Y Ajuste DEL CUT OFF DEL CRT Panel Frontal Ajuste DEL FocoChequeo DE Funcionamiento DEL Verificación DE Funcionamiento DEVerificación DE LA Sintonía DE Canales Chequeo DEL SonidoAjuste DE Pureza Y Convergencia Cuando el CRT o el Yoke fueren sustituidosGrupo CS Apoyo Técnico