Aiwa TV-C1421, Руководство по обслуживанию

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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.
Fig.4-4
CA-100 SETTING
Fig.4-3
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 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 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 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 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.