Sony FVS-1000 System Maintenance Manual page 227

Adjust the Integrating Spheres for 16 mm/8P
Note: In the following, [ENTER] means the ENTER key.
1. Secure the gate base and integrating sphere for 16 mm
or 8P to the lamp house and turn ON the power of the
FTP. (Lamp turns ON)
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When adjust the procedure 6. , perform warm-up
running for 10 minutes over after the lamp turns ON.
2. Wait for the hyper terminal window to display
"READY".
3. Set the timer mode.
Select "timer" on the PC and press [ENTER].
4. Set all four parameters on the lamp control to [FFFF].
Display menu 02 on the control panel, and control
knob of "MASTER", 'RED", "GREEN" and "BLUE".
5. Adjust R (offset), G (offset), and B (offset) of the
integrating sphere.
(1) Connect the oscilloscope to the following check
points, and adjust the offset RV.
Measuring Point Specification
IC403-14 pin/LC-35 Level of lower value:
0 ± 0.1 V dc
IC433-14 pin/LC-35 Level of lower value:
0 ± 0.1 V dc
IC463-14 pin/LC-35 Level of lower value:
0 ± 0.1 V dc
RV31
RV32
SE-631 board (B side)
FVS-1000 MMP1
Adjustment RV
R (offset)
RV11/SE-631
G (offset)
RV21/SE-631
B (offset)
RV31/SE-631
RV21 RV11
RV22 RV12
CN1
6. Adjust R (gain), G (gain), and B (gain) of the integrat-
ing sphere.
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Perform warm-up running for 10 minutes over after
the lamp turns ON.
(1) While monitoring the pulse of TP305 of the LC-35
board, adjust R (gain) of the integrating sphere.
. Check that setting to the timer mode.
. While enlarging the falling edge on the oscilloscope,
display it at the center.
[Oscilloscope]
TRIGGER : Rising edge of the pulse of TP305/
LC-35.
SEC/DIV : 200 usec/DIV
TP305
Trigger
. Set the integral mode.
Select "integ" on the PC and press [ENTER].
. Adjust the R (gain) RV12/SE-631 so that the
waveform satisfies the specification.
TP305
At the timer mode
TP305
At the integral
mode
Specification :
. Set the timer mode.
Select "timer" on the PC and press [ENTER].
(2) Likewise, while monitoring the pulse of TP301 of the
LC board, adjust G (gain) RV22/SE-631 of the
integrating sphere.
(3) Likewise, while monitoring the pulse of TP303 of the
LC board, adjust B (gain) RV32/SE-631 of the
integrating sphere.
6-6. Lamp House Adjustment
Enlargement
A
A = 200 ±50 usec
6-25