file:///C:/AA/Nowy%20folder/NA/CT-32HL44J/SVC/s1503000000.html
15.3 (NTSC) Sub-Contrast
Service DAC adjustment (CUT-G, CONT)
This adjustment is factory set. Do not adjust unless repairs are made to associated circuit, the CRT Board
or when the CRT is replaced.
Preparation
1. Apply a colorbar pattern.
2. Set the PICTURE settings to normal.
3. Set color to minimum (no color on picture).
4. Set PICTURE mode to VIVID
5. Connect the oscilloscope to TP47G.
Procedure
1. In the service mode, select DAC for brightness adjustment BRIGH and set data to 1 D0.
2. In service mode, select DAC for green cutoff adjustment CUT-G, and adjust data to obtain 2.2 V
between 7.5IRE and GND level at TP47G. (See waveform detail)
3. In service mode, select DAC for contrast adjustment CONT, and adjust data to obtain 2.3±0.1V
between 7.5IRE and 100IRE level at TP47G. (See waveform detail)
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Содержание CT30WC14J - 30" COLOR TV
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Страница 28: ...C844 ECKR3A471KBP CAP C 470PF K 1KV 28 ...
Страница 34: ...D513 MAZ42700MF DIODE ZENER 34 ...
Страница 38: ...IC503 0N3171R INT CKT 38 ...
Страница 40: ...L818 EXCELSA24T FERRITE BEAD 40 ...
Страница 47: ...R815 ERJ6GEYJ333V RES M 33K J 1 10W 47 ...
Страница 49: ...R889 ERJ6GEYJ272V RES M 2 7K J 1 10W 49 ...
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Страница 222: ...A BOARD TV1 V TNR001 BACK VIDEO DG BOARD IC3801 FRONT VIDEO CRT VIDEO BLOCK DIAGRAM CT 32HL44J UJ ...
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