Acer AT4202P Service Manual page 36

Acer at4202p: service manual
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balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to
maximum. ( Standard: x = 295±10,
1.4
Set Pattern generator to 640X480(60) VGA output and 32 Gray scale pattern.
1.5
Used remote control to entry factory mode, adjust Green offset value and Green gain value in
"white balance page" to make 32 gray scale pattern can be distinguished 28 gray scale at least,
and the most darkness level is totally dark, and make sure the most brightness two level can be
distinguished
1.6
Set Pattern generator to 640X480(60) VGA output and 20% white screen pattern.
1.7
Used remote control to entry factory mode, adjust Red offset, Blue offset value in "white balance
page" and make Chroma 7100 x, y value into color temperature spec (Standard: x = 295±10,
= 305±10)
1.8
Repeat step 2.3 to 2.7 until 70% & 20% white screen pattern x, y value in spec.
Component mode:
1.9
4.1 Set Pattern generator to 480P Component output and 70% white screen pattern.
1.10 Set OSD picture standard value.
1.11 Used remote control to entry factory mode, adjust Red gain, Green gain, Blue gain value in "white
balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to
maximum. ( Standard: x = 295±10,
1.12 Set Pattern generator to 480P Component and 32 Gray scale pattern.
1.13 Used remote control to entry factory mode, adjust Green offset value and Green gain value in
"white balance page" to make 32 gray scale pattern can be distinguished 28 gray scale at least,
and the most darkness level is totally dark, and make sure the most brightness two level can be
distinguished
1.14 Set Pattern generator to 480P Component output and 20% white screen pattern.
1.15 Used remote control to entry factory mode, adjust Red offset, Blue offset value in "white balance
page" and make Chroma 7100 x, y value into color temperature spec (Standard: x = 295±10,
= 305±10)
1.16 Repeat step 4.3 to 4.7 until 70% & 20% white screen pattern x, y value in spec.
Video mode:
1.17 4.1 Set Pattern generator to PAL output and 70% white screen pattern.
1.18 Set OSD picture standard value.
1.19 Used remote control to entry factory mode, adjust Red gain, Green gain, Blue gain value in "white
balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to
y = 305±10 )
y = 305±10 )
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