Sharp LC-121M2U Service Manual page 16

LC-121M2U
LC-150M2U
5-6-3. Component input Adjustment
Adjustment
1 Brightness adjustment
(NTSC)
2 Unicolor adjustment
(NTSC)
3 Color level adjustment
(NTSC)
4 Tint adjustment
(NTSC)
Adjusting conditions
1. From SG, input the 100% white color
bar signal of NTSC into conponent
terminal.
2. Connect oscilloscope to TP821
(IC803, pin7, G output).
1. From SG, input the 100% white color
bar signal of NTSC into conponent
terminal.
2. Connect oscilloscope to TP820
(IC803, pin8).
1. From SG, input the 100% white color
bar signal of NTSC into conponent
terminal.
2. Connect the oscilloscope to TP820
(B output).
1. From SG, input the 100% white color
bar signal of NTSC into conponent
terminal.
2. Connect the oscilloscope to TP820
(B output).
16
Adjusting method
Adjust DVD NT BRIGHTNESS, and
adjust the black level of G output so
as to get DC 1.5±0.05V.
Adjust DVD NT UNICOLOR, and
adjust so as to get 100% white-
black level video component equal
to 2.3±0.05Vp-p.
Adjust DVD NT COLOR so as to get
the color bar signal blue amplitude
(black level - peak level) equal to
2.8V±0.05Vp-p.
Adjust DVD NT TINT so as to get the
color bar signal magenta amplitude
(black level - peak level) equal to 2.3V
±0.05Vp-p.
LC-121M2U
LC-150M2U