Sharp VL-SW50U Service Manual page 59

VL-swsou
l
Lenses adjustment (For a zoom lens)
1 Measuring instrument 1 None
Video
1
Subject
Tape
Test point
More than 50 m away
None
Adjustment address 1FF
Adjustment level OC, 06,08
1) Set up the lenses adjustment mode.
(This is unnecessary after the above basic iris adjustment has been made.)
2) Write the adjustment data OC, 06 and 08 one after the other to the address 1 FF. The adjustments are as follows.
3) Write FF to the address 1 FE to exit the lenses adjustment mode.
Data Adjustment
oc
MR sensor adjustment
06 Wide-end
focus 00 position adjustment
08
Tele-end focus 00 position adjustment
6-2-2-3.
Before starting these adjustments, set up the lenses adjust.
l
Sync level adjustment
Measuring instrument Oscilloscope
Subject Anything
Tape
Test point VIDEO OUT (Terminated in 75R)
Adjustment address 23B
i
1 Adjustment level 1 286mVp-p
I
1) Set up the camera signal adjustment mode. (Write 00 to the address 1 FE)
2) Push the lens select switch and out the signal of the zoom lens.
3) Connect the oscilloscope to the VIDEO-OUT. Adjust the sync level to 286mVp-p.
6-2-2-4.
l
Iris AE adjustment (For a zoom lens)
Measuring instrument Oscilloscope
Subject Gray scale
Tape
Test point
VIDEO-OUT
Adjustment address
1FD
Adjustment level 700mVp-p
b
1) Shoot the gray scale in the standard way. Observe the VIDEO-OUT signal on the oscilloscope screen and rewrite the
data of address 1 FD to get an amplitude of 700mVp-p as shown above.
6-2-2-S.
l
Carrier balance , AF noise level adjustment (For both of
1 Measuring instrument 1 None
I
lenses)
Subject
Tape
Anything
Test point
None
Adjustment address 1 FF
1 Adjustment level 1 01
1) Preparation : write FF to address 19C, 19D, 19E, 19F, lA0, 1Al for a zoom lens.
Write FF to address 309, 30A, 30B, 3OC, 30D, 30E for a wide angle lens.
2) Write the data 01 to the address IFF.
The following adjustments are automatically
carried on ; @ Carrier balance adjustment
@ AF noise level adjustment
at AGC Gain Min , AGC Gain Max and Gain up.
6-21