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Alignments and Adjustments
CPQ-C1786FNSL/T (FS7550/V7550)
5-2 Alignment Procedures
5-2-1 High Voltage Adjustment
CONDITION
Press ENTER key simultaneously when switching the power On.
Display image : No video (68kHz Mode)
PROCEDURE
Connect DC meter to TP002 and adjust HV (i)
R802 to obtain a DC voltage of -151.5 ± 0.2 V DC (Sampo FBT) for CPT CRT M41AGE93X76 (TCO).
5-2-2 Screen and White Balance Adjustment
CONDITION
Press ENTER key simultaneously when switching the power On.
Display image : No video (68.68kHZ Mode)
PROCEDURE
1
Raster color setting
1-a Set Brightness max. to 77 (OSD cursor) and 500 ± 5 at G2.
1-b Adjust R and B cutoff to min.
1-c Adjust G cutoff to about 0.45FL
1-d Adjust B cutoff to get y=283 ± 5, R cutoff to get x=297 ± 5 and Y=0.65 ± 0.05 FL.
1-e Adjust brightness cutoff to raster 0.01~0.02 FL.
CONDITION
Display image : 50 mm x 50 mm white block pattern
PROCEDURE
2
5500
0
K color temperature setting
2-a Set Brightness to cutoff and Contrast to maximum.
2-b Move cursor on OSD to choose color temperature icon.
2-c With green block pattern, adjust G gain to get Y about 30FL.
2-d Adjust R.B. gain to get x=333 ± 5, y=348 ± 5; and Y=40 ± 0.5FL
3
6500
0
K color temperature setting
3-a Set Brightness to cutoff and Contrast to maximum.
3-b Move cursor on OSD to choose color temperature icon.
3-c With green block pattern, adjust G gain to get Y about 38FL.
3-d Adjust R.B. gain to get x=313 ± 5, y=329 ± 5; and Y=43 ± 0.5FL
