Panasonic TC-20KL03A, Руководство по обслуживанию

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TC-20KL03A / TC-29KL03A
AJUSTMENTS
ITEM / PREPARATION PROCEDURE
11-
VERTICAL DEFLECTION CALIBRATION AND
CONFIRMATION
1. Adjust IMAGE to DYNAMIC NORMAL
S-CORR CONFIRMATION AND CALIBRATION
1) Confirmation in 50Hz
1. Supply a PHILIPS PAL-N signal.
2. Confirm that S-CORR 50Hz is in [18] DAC.
2) Confirmation in 60Hz
1. Supply a MONOSCOPE signal.
2. Confirm that S-CORR 60Hz is in [18] DAC.
3) V-SLOPE calibration
1. Supply a MONOSCOPE signal.
2. Adjust V_SLOPE (CHK3) so that the beginning of the
black part of the image be aligned with the center of
the CRT as Fig. 1.
4) VERTICAL CENTRALIZATION 50 HZ CALIBRATION
1. Supply a PAL-N Philips signal.
2. Adjust V-SHIFT 50Hz (CHK3) so that the Philips
pattern’s center it is in the CRT center.
5) VERTICAL CENTRALIZATION 60 HZ CALIBRATION
1. Supply a MONOSCOPE signal.
2. Adjust V-SHIFT 60Hz (CHK3) so that the monoscope
pattern’s it is in the CRT center
6) VERTICAL HEIGHT (V-AMP 50HZ) CALIBRATION
1. Supply a PHILIPS PAL-N signal.
2. Adjust V-AMP-50Hz (CHK3) so that the Philips pattern’s
circle height be the same dimension of the width.
7) VERTICAL HEIGHT (V-AMP 60HZ) CALIBRATION
1. Supply a MONOSCOPE signal.
2. Adjust V-AMP-60Hz (CHK3) so that, in the Fig.2, be:
3. MEMORIZE in EEPROM.
Fig. 1
Fig. 2
12- CRT CUT OFF CALIBRATION
1. Supply a WINDOWS signal.
2. Position DACs with the data below:
BRT e S-BRT —> 32H
RGB CONTRAST —> 09H (29 pol) e 07H (20 pol)
SUB-CONTRAST —> 21H
R,G,B DRIVE —> 31H
R,G CUT —> 31H
CALIBRATION:
1. Press “5” (AKB OFF) and confirm that OSD becomes blue.
2. Connect the oscilloscope in TPL7 and adjust BRT to obtain
130V as in the Fig. 1 below.
3. Adjust the SCREEN to obtain in the color analyzer
Y = 1.0 +1.0
-0.5
4. Press “5” (AKB OFF) and confirm that OSD becomes blue.
white.
CRT->
C,D
A,B
20”
1.9 ~ 2.2
1.5 ~ 2.3
29”
1.5 ~ 2.0
1.5 ~ 1.6
Fig. 1