Panasonic TC-21FX30LA Service Manual

Panasonic TC-21FX30LA Service Manual Manual pdf 27 page image

- 27 -TC-21FX30LA/LP / TC-29FX30LA/LPADJUSTMENTSITEM / PREPARATION PROCEDUREDEFLECTION CALIBRATION AND CONFIRMATION(SERVICE MODE 1) 50Hz(SERVICE MODE 3) 60HzMode 4:3 - 21” and 29” CRT1. Adjust the HELMHOLTZ device to local magnetic field.2. Adjust the IMAGE menu to DINÂMIC NORMAL.ADJUST AND CONFIRMATION1) V-CENTER 50Hz adjustment.1. Supply a PHILIPS PAL-N signal.2. Adjust V-POS to align the pattern center with the CRTcenter in vertical position.2) V-AMP 50 Hz adjustment.1. Supply a PHILIPS PAL-N signal.2. Adjust V-AMP 50Hz so that the PHILIPS pattern circleheight has the same dimension of his width.3) H-CENTER 50 Hz adjustment.1. Supply a PHILIPS PAL-N signal.2. Adjust H-POS to align the pattern center with theCRTcenter in the horizontal position.4) V-CENTER 60Hz adjustment.1. Supply a PHILIPS PAL-M signal.2. Adjust V-POS to align the pattern center with the CRTcenter in vertical position.5) V-AMP 60 Hz adjustment.1. Supply a PHILIPS PAL-M signal.2. Adjust V-AMP 60 Hz so that the PHILIPS pattern circleheight has the same dimension of his width.6) H-CENTER 60 Hz adjustment.1. Supply a PHILIPS PAL-M signal.2. Adjust H-POS 60Hz to align the pattern center withthe CRTcenter in the horizontal position.7) V-SYM adjustment.1. Supply a CROSS HATCH signal.2. Adjust V-SYM so that it distances them “a” and “b” arethe same.8) V-LIN adjustment.1. Supply a CROSS HATCH signal.2. Adjust V-Lin so that it distances them “a”, “b”, “c” and“d” are the same.2,5 – 0,22,5 – 0,22,0 ± 0,12,0 ± 0,1 2,0 ± 0,12,0 ± 0,1V-Sym a=babV-Lin a = b = c = dabcdHeight with monoscope patternWidth with monoscope patternMonoscopePattern