Read Sharp PG-M20S (serv.man10) Service Manual online
22
PG-M20S
PG-M20X
PG-M20X
6
Adjustment of
NTSC color
saturation
NTSC color
saturation
1. Feed the internal 8ch (split color bar)
signal.
2. Select the following group and sub-
ject.
Group: VIDEO
Subject: N-COLOR
Group: VIDEO
Subject: N-COLOR
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
1. Confirm the fixed value.
Fixed value: 59
7
Adjustment of PAL
color saturation
color saturation
1. Feed the PAL color bar signal.
2. Select the following group and sub-
2. Select the following group and sub-
ject.
Group: VIDEO
Subject: P-COLOR
Group: VIDEO
Subject: P-COLOR
1. Confirm the fixed value.
Fixed value: 59
8
Adjustment of
SECAM color
saturation
SECAM color
saturation
1. Feed the SECAM color bar signal.
2. Select the following group and sub-
2. Select the following group and sub-
ject.
Group: VIDEO
Subject: S-COLOR
Group: VIDEO
Subject: S-COLOR
1. Confirm the fixed value.
Fixed value: 59
9
Adjustment of
COMPO G bright-
ness
COMPO G bright-
ness
1. Input signal: 0% gray pattern sig-
nal (480I)
2. Select the following group and sub-
ject.
Group: COMPO
Subject: G-BRIGHT
Group: COMPO
Subject: G-BRIGHT
1. Feed the signal to INPUT 1.
Make adjustment so that some bits
should be missing in the picture.
should be missing in the picture.
10
Adjustment of
COMP CR-Offset
COMP CR-Offset
1. Feed the color difference signal
(480I): Y 0% brightness, Cb and Cr
0% white patterns.
Group: COMPO
Subject: AUTO
0% white patterns.
Group: COMPO
Subject: AUTO
1. After signal input, select AUTO us-
ing the set's switch or the remote
controller's button for automatic ad-
justment.
controller's button for automatic ad-
justment.
11
Automatic Adjust-
ment of RGB
white balance
ment of RGB
white balance
1. Feed the 50% gray pattern signal
(XGA, 60 Hz [PG-M20X]/SVGA,60
Hz [PG-M20S]).
Hz [PG-M20S]).
2. Select the following group and sub-
ject.
Group: DLP
Subjects: R1-GAIN (Red)
Group: DLP
Subjects: R1-GAIN (Red)
B1-GAIN (Blue)
1. Adjust R-1 GAIN and B1-GAIN so that
x-value should be 266±3 and y-value
320±3.
320±3.
12
Automatic Adjust-
ment of SRGB
white balance
ment of SRGB
white balance
1. Feed the 50% gray pattern signal
(XGA, 60 Hz [PG-M20X]/SVGA,60
Hz [PG-M20S]).
Hz [PG-M20S]).
2. Select the following group and sub-
ject.
Group: DLP
Subjects: S-R1-GAIN (Red)
Group: DLP
Subjects: S-R1-GAIN (Red)
S-G1-GAIN (Green)
S-B1-GAIN (Blue)
S-B1-GAIN (Blue)
1. Set the value of S-R1-GAIN to 34.
2. Adjust S-G1-GAIN and S-B1-GAIN
2. Adjust S-G1-GAIN and S-B1-GAIN
so that x-value should be 310±3 and
y-value 335±3.
y-value 335±3.
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