Read Sharp LC-20A2E (serv.man2) Service Manual online
LC-20A2E
10
PAL/PAL60
SECAM
NTSC
y delay
7
6
0
RF
tint offset
0
0
0
sub contrast
2
2
0
sub colour
25
25
0
y delay
7
5
4
AV1/
tint offset
1
1
1
AV2
sub contrast
0
2
0
sub colour
30
30
20
y delay
7
5
1
AVS
tint offset
1
1
1
sub contrast
0
0
0
sub colour
30
30
30
AGC gain start
27
3-1. +B adjustment
Page 9 of MAIN side adjustment process +B-ADJ
Adjust the voltage of the pin 12 of SC901 the SUB PWB to 5.0V
Adjust the voltage of the pin 12 of SC901 the SUB PWB to 5.0V
±
0.05V.
3-2. Model setting
Page 9 of MAIN side adjustment process MODEL
Set to A2E.
Set to A2E.
3-3. Inch size setting
Page 9 of MAIN side adjustment process INCH SIZE
Set to 20.
Set to 20.
3-4. COMMON BIAS adjustment of LCD module
Page 9 of MAIN side adjustment process COM BIAS
Input the picture of gray scale and adjust it so as to obtain the best contrast.
Input the picture of gray scale and adjust it so as to obtain the best contrast.
3-5. CUTOFF adjustment
Page 9 of MAIN side adjustment process R CUTOFF, B CUTOFF
Adjust it so as to obtain the optimal colour balance.
Adjust it so as to obtain the optimal colour balance.
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