Sony FVS-1000 System Maintenance Manual page 225

7. 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 RV21
RV32 RV22
SE-631 board (B side)
8. Adjust R (gain), G (gain), and B (gain) of the LC-35
board.
n
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 LC-35 board.
. 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
FVS-1000 MMP1
Adjustment RV
R (offset)
RV11/SE-631
G (offset)
RV21/SE-631
B (offset)
RV31/SE-631
RV11
RV12
CN1
Enlargement
. Set the integral mode.
Select "integ" on the PC and press [ENTER].
. Adjust the R (gain) RV401/LC-35 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-35 board, adjust G (gain) RV431 of the LC-35
board.
(3) Likewise, while monitoring the pulse of TP303 of the
LC-35 board, adjust B (gain) RV461 of the LC-35
board.
9. Set the integral mode.
Select "integ" on the PC and press [ENTER].
10. Disconnect the connection cable for PC, and return the
lamp house to the original position.
6-6. Lamp House Adjustment
A
A = 200 ±50 usec
6-23