Panasonic TC-14A04A Service Manual

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Panasonic TC-14A04A Service Manual Manual pdf 15 page image

- 15 -TC-14A04A / TC-20A04A14- VERTICAL DEFLECTION CALIBRATION ANDCONFIRMATION1. Adjust IMAGE to DYNAMIC NORMALS-CORR CONFIRMATION AND CALIBRATION1) Confirmation in 50Hz1. Supply a PHILIPS PAL-N signal.2. Confirm that S-CORR 50Hz is in [18] DAC.2) Confirmation in 60Hz1. Supply a MONOSCOPE signal.2. Confirm that S-CORR 60Hz is in [18] DAC.3) V-SLOPE calibration1. Supply a MONOSCOPE signal.2. Adjust V_SLOPE (CHK3) so that the beginning of theblack part of the image is aligned with the center of theCRT as Fig. 1.4) VERTICAL CENTRALIZATION 50 HZ CALIBRATION1. Supply a PAL-N Philips signal.2. Adjust V-SHIFT 50Hz (CHK3) so that the Philipspattern’s center it is in the center of the CRT.5) VERTICAL CENTRALIZATION 60 HZ CALIBRATION1. Supply a MONOSCOPE signal.2. Adjust V-SHIFT 60Hz (CHK3) so that the monoscopepattern´s center it is in the center of the CRT.6) VERTICAL HEIGHT (V-AMP 50HZ) CALIBRATION1. Supply a PHILIPS PAL-N signal.2. Adjust V-AMP-50Hz (CHK3) so that the Philips pattern’scircle height be the same dimension of the width.7) VERTICAL HEIGHT (V-AMP 60HZ) CALIBRATION1. Supply a MONOSCOPE signal.2. Adjust V-AMP-60Hz (CHK3) according to box.3. MEMORIZE in EEPROM.Fig. 1Fig. 216- WHITE BALANCE CALIBRATION1. Adjust the HELMHOLTZ device to local magnetic field.2. Let the set warm up for a minimum of 30 minutes.3. Receive a white balance. (This sign should containburst sign).4. Adjust the IMAGE menu to DINÂMIC NORMAL.5. Fully degauss the CRT by using an external degaussingcoil.6. Position the color analyzer in contact with the CRT face.CALIBRATION:[1] LOW LIGHT CALIBRATION1. Adjust S-BRT, so that Y = 72. Adjust R-CUT OFF, so that x = 0.273 ±0.013. Adjust G-CUT OFF, so that y = 0,283 ±0.01[2] HIGH LIGHT CALIBRATION(Confirm that G-DRIVE is 31 DAC)1. Adjust S-BRT, so that Y = 1502. Adjust R-DRIVE, so that x = 0,275 ±0.013. Adjust B-DRIVE, so that y = 0,284 ±0.01[3] Repeat the procedures [1] and [2].ADJUSTMENTSITEM / PREPARATION PROCEDURECRT->C,DA,B141.9 ~ 2.21.5 ~ 2.3201.5 ~ 2.01.5 ~ 1.6Assure that not entering light for the meter borders and that the CUT OFF voltage calibration has been done. If the value in thecolor analyzer is below 150, adjust CONTRAST to 50 and press 8 in CHK2 mode.