Sharp VL-A111UL Service Manual - Page 34

Black balance, AF noise level adjustment, 7-3-7. White balance adjustment Indoor, 7-3-8.

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VL-A111U/AH131U VL-AH151U/AH161U 6-7-3-6. Black balance, AF noise level adjustment Mode Measuring instrument Subject Measuring point Adjustment address Adjustment reference CAM ADJ - Not specified - 71 01 1) Write ADD:71 DATA:01. 2) Press the "STOP" key to reconfirm ADD "71". Adjustment is completed when "FF" is returned to DATA. 6-7-3-7. White balance adjustment (Indoor) Mode Measuring instrument Subject Measuring point Adjustment address CAM ADJ Vector scope Gray scale VIDEO OUT 00, 02 [Presetting] 1) Maximize the gain of the vector scope so that the source comes to the intersection of R-Y and B-Y axles in the no signal state. 2) Connect the vector scope to VIDEO OUT and terminate it at 75Ω. 3) Record the gray scale (JIGCHART-1). R-Y Adjustment reference Minimum focus 1) Write DATA "70" in ADD "70" and enter the camera adjustment mode. 2) Vary ADD "00" data to adjust it to the specification. B-Y 3) Vary ADD "02" data to adjust it to the specification. 4) Repeat steps 2) - 3) to bring the source into the minimum focus. 5) After confirming the adjustment above, write ADD:70 and DATA:FF and exit the camera adjustment mode. Set the gain of the vector scope so that BURST runs 6-7-3-8. White balance adjustment (Outdoor) over the circumference. Mode Measuring instrument Subject Measuring point Adjustment address Adjustment reference CAM ADJ Vector scope Gray scale VIDEO OUT 6C, 6E Minimum focus [Presetting] 1) Maximize the gain of the vector scope so that the source comes to the intersection of R-Y and B-Y axles in the no signal state. 2) Connect the vector scope to VIDEO OUT and terminate it at 75Ω. 3) Record the gray scale (JIGHOYA-LB165). 4) Mount the color conversion filter on the lens. R-Y 1) Write DATA "00" in ADD "70" and enter the camera adjustment mode. 2) Vary ADD "6C" data to adjust it to the specification. 3) Vary ADD "6E" data to adjust it to the specification. B-Y 4) Repeat steps 2) - 3) to bring the source into the minimum focus. 5) After confirming the adjustment above, write ADD:70 and DATA:FF and exit the camera adjustment mode. Set the gain of the vector scope so that BURST runs 6-7-3-9. Color adjustsment over the circumference. Mode CAM ADJ Measuring instrument Vector scope Subject Gray scale Measuring point VIDEO OUT Adjustment reference [Presetting] 1) Set the source at the intersection of R-Y and B-Y axles in the no signal state. 2) Connect the vector scope to VIDEO OUT and terminate it at 75Ω. 3) Record the color bar (JIGCHART-4). R-Y ADD Item SPEC 1C4 R-Gain 1.75 ± 0.1 times (burst ratio) 1C2 B-Gain 1.05 ± 0.1 times (burst ratio) 1C0 B-Phase 340 ± 2° 1BE R-Phase 102 ± 2° R 102° 1) Write DATA "00" in ADD"70" and enter the camera adjustment mode. BURST B-Y 2) Vary ADD "1C4" data to adjust it to the specification. 3) Vary ADD "1C2" data to adjust it to the specification. 340° B 4) Vary ADD "1C0" data to adjust it to the specification. 5) Vary ADD "1BE" data to adjust it to the specification. 6) Repeat steps 2) - 5) and adjust Gain and Phase of R and B to the specification. Gain 7) After confirming the adjustment above, write ADD:70 and DATA:FF BURST:R:B=1.00:1.75:1.05 and exit the camera adjustment mode. * Be sure to set ADD:70 CAM ADJ data to "FF" after adjusting the camera circuit section. 34

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34
VL-A111U/AH131U
VL-AH151U/AH161U
6-7-3-6. Black balance, AF noise level adjustment
1) Write ADD:71 DATA:01.
2)
Press the “STOP” key to reconfirm ADD “71”. Adjustment is completed when “FF”
is returned to DATA.
Mode
CAM ADJ
Measuring instrument
—
Subject
Not specified
Measuring point
—
Adjustment address
71
Adjustment reference
01
6-7-3-7. White balance adjustment (Indoor)
[Presetting]
1)
Maximize the gain of the vector scope so that the source comes to the intersection
of R-Y and B-Y axles in the no signal state.
2) Connect the vector scope to VIDEO OUT and terminate it at 75
Ω
.
3) Record the gray scale (JIGCHART-1).
1) Write DATA “70” in ADD “70” and enter the camera adjustment
mode.
2)
Vary ADD “00” data to adjust it to the specification.
3)
Vary ADD “02” data to adjust it to the specification.
4)
Repeat steps 2) - 3) to bring the source into the minimum focus.
5)
After confirming the adjustment above, write ADD:70 and DATA:FF
and exit the camera adjustment mode.
Mode
CAM ADJ
Measuring instrument
Vector scope
Subject
Gray scale
Measuring point
VIDEO OUT
Adjustment address
00, 02
Adjustment reference
Minimum focus
6-7-3-8. White balance adjustment (Outdoor)
[Presetting]
1)
Maximize the gain of the vector scope so that the source comes to the intersection
of R-Y and B-Y axles in the no signal state.
2)
Connect the vector scope to VIDEO OUT and terminate it at 75
Ω
.
3)
Record the gray scale (JIGHOYA-LB165).
4)
Mount the color conversion filter on the lens.
1) Write DATA “00” in ADD “70” and enter the camera adjustment
mode.
2)
Vary ADD “6C” data to adjust it to the specification.
3)
Vary ADD “6E” data to adjust it to the specification.
4)
Repeat steps 2) - 3) to bring the source into the minimum focus.
5)
After confirming the adjustment above, write ADD:70 and DATA:FF
and exit the camera adjustment mode.
Mode
CAM ADJ
Measuring instrument
Vector scope
Subject
Gray scale
Measuring point
VIDEO OUT
Adjustment address
6C, 6E
Adjustment reference
Minimum focus
6-7-3-9. Color adjustsment
[Presetting]
1) Set the source at the intersection of R-Y and B-Y axles in the no signal state.
2)
Connect the vector scope to VIDEO OUT and terminate it at 75
Ω
.
3) Record the color bar (JIGCHART-4).
1) Write DATA “00” in ADD”70” and enter the camera adjustment
mode.
2)
Vary ADD “1C4” data to adjust it to the specification.
3)
Vary ADD “1C2” data to adjust it to the specification.
4)
Vary ADD “1C0” data to adjust it to the specification.
5)
Vary ADD “1BE” data to adjust it to the specification.
6)
Repeat steps 2) - 5) and adjust Gain and Phase of R and B to the
specification.
7)
After confirming the adjustment above, write ADD:70 and DATA:FF
and exit the camera adjustment mode.
* Be sure to set ADD:70 CAM ADJ data to “FF” after adjusting the camera circuit section.
Mode
CAM ADJ
Measuring instrument
Vector scope
Subject
Gray scale
Measuring point
VIDEO OUT
Adjustment reference
ADD
Item
SPEC
1C4
R-Gain
1.75
±
0.1 times (burst ratio)
1C2
B-Gain
1.05
±
0.1 times (burst ratio)
1C0
B-Phase
340
±
2
°
1BE
R-Phase
102
±
2
°
R-Y
B-Y
Set the gain of the vector
scope so that BURST runs
over the circumference.
R-Y
B-Y
Set the gain of the vector
scope so that BURST runs
over the circumference.
R-Y
B-Y
Gain
BURST:R:B=1.00:1.75:1.05
BURST
102
°
340
°
B
R