Panasonic TC-29G12P Color Killer Verification, Filament Voltage Check UP, SUB Bright Adjustment

Page 24

Service Adjustments and Calibrations

TC-20G12P / TC-29G12P / TC-29G12PU

3.Set the White Balance pattern to over side the White Ba- lance Meter. Adjust the “G” high light to 80µA by changing SUB-BRIGHT (DAC: B2). If can not get 80µA, connect a jumper through the cable between TP38 and TP41.

4.Then, adjust the “R” high light (DAC: C3) and the “B”

(DAC: C4) to zero on the White Balance Meter.

5.If the indication of the high light adjust on White Balance Meter still doesn’t get 80µ A, adjust the bright control to the maximum.

6.Check the White Balance Meter under side , if it isn’t property , readjust the low light on standard window.

If the error of “R” is ± 5µ A and “B” is 10µ A repeat the procedure 1 and 2.

7.Exit to the normal mode.

Note: Adjust the White Balance using equipment adjusted to colour temperature 10.800K° + 19MPCD.

COLOR KILLER VERIFICATION

PREPARATION:

1. Adjust the color control to level “50”.

PROCEDURE:

1.Apply a pattern signal with 40dB.

2.Verify to not appear color noises on any B/W channel.

3.Verify that the color doesn’t disappear on any color channel.

FILAMENT VOLTAGE CHECK UP

REQUIRED EQUIPMENTS / CONNECTIONS: RMS Voltmeter: CRT filament terminal.

PROCEDURE:

1.Apply crosshatch pattern.

2.The filament voltage must be: TC-20G12P→6,15V+0.40Vrms _0.24Vrms TC-29G12P/TC-29G12PU→6,3V+0.40Vrms _0.24Vrms

SUB BRIGHT ADJUSTMENT

PREPARATION:

Adjust CONTRAST to maximum and BRIGHT to center.

PROCEDURE:

1.Apply standard SUB BRIGHT.

2.Adjust SUB BRIGHT (DAC: B2) to the central part of PART 6 and PART 7 become black.

(PART 7=Black and PART 6=lightly illuminated).

FOCUS ADJUSTMENT

PREPARATION:

1. Adjust CONTRAST to maximum and BRIGHT to center.

PROCEDURE:

1.Apply a MONOSCOPE or PHILIPS pattern.

2.Adjust the focus to the right side of draw below be best.

3.Adjust the focus, first on the center, and after on the “4“ region.

4

AUDIO VERIFICATION

PREPARATION :

 

1. VOLUME

1/3 of maximum

2. TV SPEAKER SW

ON

PROCEDURE:

1.Set a music or a external signal.

2.Move the volume control since minimum to maximum and verify if the change is soft.

3.Disconnect the speakers switch and verify if exist still sound on speakers.

AI SOUND VERIFICATION

REQUIRED EQUIPMENTS / CONNECTIONS: RF Generator: Input antenna terminal

RMS Voltmeter: TP83

 

PREPARATION:

 

1.

AI SOUND

ON

2.

VOLUME

MAXIMUN

PROCEDURE:

1.Apply standard pattern with 1KHz audio modulated and 25KHz with 100% deviation.

2.Check if the output is : 240 ± 100mVrms.

- 24 -

Page 23 Page 25
Image 24
Page 23 Page 25
Contents Remote Control Transmiter Provided accessoriesTelevisor TC-20G12P TC-29G12P TC-29G12PUImportant Safety Notice Table of ContentsRemote control Operation GuideFrontal View Rear viewHow to connect an external antenna TC-20G12P / TC-29G12POperation Selection of audio mode STEREO, SAP, Mono and Sound AI Selecting the Menu languageOperation Operation Guide Game GuardProgramming timer ON/OFF Automatic turning off Sleep TimerSetting Characteristic Operation Antenna mode Automatic channel tuningManual channel tuning Auto Power onSubtitles display mode cc Mode Channel captionConnecting to an amplifier stereo equipment Connecting to a videocassette recorder VCROperation GuideRemote Control Transmitter Inserting batteriesService Adjustments and Calibrations PowerInitial Data Recording in the Memory Eeprom Data Memory on the ScreenDeflection Circuit PRE-ADJUSTEMENTS AGC Circuit PRE-ADJUSTMENTSWhite Balance Adjustments Electrical InspectionsAFT Adjustments RF AGC Adjustment If Detector Output AdjustmentSUB-CONTRAST Adjustment +B Voltage VerificationPAL SUB-COLOR Adjustment Ntsc SUB-TINT AdjustmentSUB-BRIGH PRE-ADJUSTMENT MTS Circuit Adjustment Audio Outpup Level VerificationSynthetizer Adjustments Deflection Circuit AdjustmentHUM Verification Audio Output Check UPCRT CUT OFF Adjustment White Balance AdjustmentSUB Bright Adjustment Focus AdjustmentColor Killer Verification Filament Voltage Check UPPurity and Convergence Adjustments Dynamic Convergence AdjustmentVerify Purity Adjustment with the Help of a Microscope Standard DAC table TC-20G12P / TC-29G12P / TC-29G12PU Waveforms IC001 Pins and Functions SyncIC601 Block Diagram IC601 Pins and FunctionsBoard Components side Top view Board Foil side Bottom view Cabinet Parts Location Cabinet Replacement Parts List TC-20G12P TC-29G12P TC-29G12PUReplacement Parts List CapacitorsDiodes Transistors ERDS2TJ181T Transformers Especial Replacement Parts Table Page CS Group Technical Support
Top Page Image Contents