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4-3. FOCUS Adjustment of focus [TV / Measuring device setting] Input signal Dot pattern Adjustment point T601 (FBT upper SFR) MODE VIDEO 1. Input dot pattern with a pattern generator. 2. Adjust FBT upper SFR so that the dos on dot pattern are most focused. 4-4. WHITE BALANCE Adjustment of white balance This adjustment uses CA-100 (CRT COLOR ANALYZER). [TV / Measuring device setting] Adjustment menu number MENU5-1 / R CUT OFF MENU5-2 / G CUT OFF MENU5-3 / R GAIN MENU5-4 / G GAIN MENU5-5 / B GAIN Input signal PAL white luster (WHITE 100%) SPEC X=0.274, Y=0.286 Color temperature =11000°±1% MODE VIDEO * Apply aging for at least 20 minutes before adjustment. 1. Apply the CA-100 setting. (Fig. 4-3) 2. Adjust each CUT OFF and GAIN so that the X and Y values become within the range specified in SPEC. 3. After adjustment, check that the color temperature is ranged within 11000°±1%. [TV / Measuring device setting] Adjustment menu number MENU5-1 / R CUT OFF MENU5-2 / G CUT OFF MENU5-3 / R GAIN MENU5-4 / G GAIN MENU5-5 / B GAIN Input signal White luster (WHITE 100%) SPEC WHITE MODE VIDEO * Apply aging for at least 20 minutes before adjustment. * Repeat the whole steps (1 to 6) several times to complete this adjustment.
CA-100 SETTING
Fig.4-3
Fig.4-4
CUT OFF adjustment (LOW LIGHT): 1. Input white luster signal with a pattern generator. 2. Set the cutoff value of the most visibly strong color on the screen to �20�. Use the VOLUME + or - key on the jig remote controller, and adjust other two cut off values to obtain white picture. GAIN adjustment (HIGH LIGHT): 3. Use the VOLUME + or - key on the jig remote controller, and raise the level of R GAIN so that red shade is obtained. 4. Then, lower the level till red shade disappears. 5. Use the VOLUME + or - key on the jig remote controller, and raise the level of G GAIN so that green shade is obtained. 6. Then, lower the level till green shade disappears. 7. Use the VOLUME + or - key on the jig remote controller, and raise the level of B GAIN so that blue shade is obtained. 8. Then, lower the level till blue shade disappears. 9. Repeat the steps 1 to 8 till white shade becomes most visible. (Fig. 4-4) Note: After adjustment, apply the BRIGHT adjustment of adjustment menu 3-2.
� 40 �
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