Sharp AQUOS LC-20B5M, Руководство по обслуживанию

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LC-20B5M
5. Adjustment
5-1. Counter bias adjustment: COM BIAS on page 2
Adjust the "COM BIAS" setting until the contrast gets optimum (the black portion blackest). The adjustment
guideline is around 100.
5-2. TAMP adjustment
1) Feed the colour bar pattern signal.
2) See if the "Y" reading on adjustment process page 2 is within the range shown below. If not, adjust the
"NTSC TAMP" setting to bring the "Y" reading within the specified range.
3) If the "NTSC TAMP" setting has been readjusted, write down its new setting in the "PAL TAMP" and
"SECAM TAMP" items manually.
Model LC20B5M
Adjustment value 174~189
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
2
C O M B I A S
0 0
T A M P L 7 1
1
4
Y D T A
H
8 1 5
T A M P
A
8 1 9
3 – 5
3 – 2
1 – 3
9 . 2
0 . 0
0
0
1
1 . 0
N T S C T A M P
T A M P
3 1
P A L T A M P 3 1
S E C A M
F R C U T O F
F G C U T O F
F B C U T O F
R – G A I N
G – G A I N
B – G A I N
3
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Y Data
(White 75%)
(Page 2 of adjustment process OSD)
5-3. White balance adjustment
1) Feed the monoscope pattern signal.
2) Adjust the "RCUTOFF", "BCUTOFF", "R-GAIN" and "B-GAIN" settings on adjustment process page 3 to
achieve the colour at the same level as with the standard set.