LC-20B6E (serv.man6). Adjusting procedure of each section - Sharp TV Service Manual (repair manual). Page 3

Read Sharp LC-20B6E (serv.man6) Service Manual online

18
LC-20B6E
(Screen on Page 2 of the adjust process menu) 
 
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 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
C  O  M   
B  I  A  S
 
 
 
 
 
 
 
 
 
 
 
4  2  7 
 
 
 
 
 
T  A  M  P
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1  5  7 
 
 
 
 
 
Y  D  A  T
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1  5  9 
 
 
 
 
 
T  A  M  P
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1  6  0   
 
 
 
 
P  A  L 
 
T  A  M  P
 
 
 
 
 
 
 
 
 
 
 
1  1  0 
 
 
 
 
 
S  E  C  A M   
T  A M P
 
 
 
 
 
 
 
 
 
1  1  0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
7.4. Adjusting the white balance
7.4.1. The adjustment method of a white balance
Adjust 40% white by RGB CUTOFF2, and adjust 80% white by RGB-GAIN after adjustment.
• Composite adjustment
[Input signal]Feed the composite video signal of 80% white for the screen’s left, and 40% for its right, or an 80%
white  pattern and a 40%  white pattern separately.
[Settings]
RGB CUTOFF2, RGB-GAIN (page 3 of the adjustment process menu). Keep G fixed (not adjusted).
80% white x
0.288
y
0.298
40% white x
0.270
y
0.281
• D1
 
adjustment (480p)
[Settings]
D1: Add the following numerical value to the adjustment value of RGB CUTOFF2 and RGB-GAIN (page
3 of the adjust process menu) at A RGB CUTOFF2 and A RGB-GAIN (page 4 of the adjust process
menu).
A
R  CUTOFF2
+4
A
G  CUTOFF2
  0
A
B  CUTOFF2
+5
A
R-GAIN
+1
A
G-GAIN
  0
A
B-GAIN
 -2
 • D3 adjustment (1080i)
[Settings]
D3: Add the following numerical value to the adjustment value of RGB CUTOFF2 and RGB-GAIN (page
3 of the adjust process menu) at D RGB CUTOFF2 and D RGB-GAIN (page 5 of the adjust process
menu).
D
R  CUTOFF2
+4
D
G  CUTOFF2
  0
D
B  CUTOFF2
+3
D
R-GAIN
+1
D
G-GAIN
  0
D
B-GAIN
 -4
• PC
 
adjustment (VGA 640x480)
[Settings]
PC: Add the following numerical value to the adjustment value of RGB CUTOFF2 and RGB-GAIN (page
3 of the adjust process menu) at PC RGB CUTOFF2 and PC RGB-GAIN (page 6 of the adjust process menu).
PC
R  CUTOFF2
-2
PC
G  CUTOFF2
 0
PC
B  CUTOFF2
-3
PC
R-GAIN
-1
PC
G-GAIN
 0
PC
B-GAIN
-4
[Adjusting with the bus]
Cutoff:
RGB CUTOFF2 Vary RB.
Keep G fixed. (not adjusted)
Page of 5
Display

Click on the first or last page to see other LC-20B6E (serv.man6) service manuals if exist.