Sharp VL-PD3U Service Manual page 40

!k=PD3U
S terminal luminance signal output
(75 Q termination)
1
Address: "OOB2" AE CVT
1
Measuring instrument:
the data of address "OOB2" is rewritten, and the luminance signal level (not including
sync signal) is adjusted to 700 + 1 OmVp-p.
Oscilloscope (horizontal sync)
1
Object:
G rey scale
1
Data variation width:
"0000" to "OOFE"
5) White balance coarse adjustment
1
Measurement terminal:
EE output
1
Address:
"0018" CGAIN KR W
"OOIA" CGAIN-KB-W
1
Measuring instrument:
Vector scope
1
Object:
G rey scale
1
Data variation width:
"0000" to "03FF"
(1) Indication on the vector scope is observed in the grey scale standard record state,
data of address "0018" and "001 A" are rewritten, and an adjustment is made so that
the luminous dot is located in the position of burst ratio:
R-Y 0 I!I 5%
B-Y 0 k 5%
:6) Color gain coarse adjustment
)
Measurement terminal:
EE output
)
Address:
"012B" CGIN RYG
"012D" CGIN BYG
"0128" CMAT RYG
"0126" CMAT BYG
b
Measuring instrument:
Vector scope
.
Object:
Color bar chart
l
Data variation width:
"0000" to "OOFF"
(1) The color bar chart is imaged, and the picture angle is adjusted so as to get white level
650 mV. Indication on the vector scope is observed, the data of address "0126",
"0128", "012B" and "012D" are rewritten, and setting is made so that the red and blue
luminous dots are located in the following positions. The gain of vector scope must be
set on 75% amplitude point on the B-Y axis.) (The red phase is adjusted at the address
"0218", and the blue phase is adjusted at the address "0126".)
Adjustment address
2.16 k 0.1 time (burst ratio)
: "012B"
1.20 & 0.1 time (burst ratio)
:
"012D"
104O I!I 2O
n
"0128"
.
335" + 2O
- "0126" .
lo-18