Sony FVS-1000 System Maintenance Manual page 213

3. Check and Adjustment of the Glass Motors
and Feedback Sensors
(This adjustment is needed when OPS motors check was
NG)
A. In this section you will check the glass physically
moves to the correct angle of deflection. From the PC
type "adjust". See below, the OPS CPU responds with
an "Address : Data Value".
<PC screen>
adjust
040F0000 : 00000000-
Then change the data value to "00000011", this is by
typing the data value that is desired. When the 8 digit
hex value has been entered the system will automati-
cally scroll to a new line showing the current data
value.
<PC screen>
adjust
040F0000:00000000-00000011
040F0000:00000011
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If you type return or enter the value is left at the last setting
and the program exits that routine. Type "adjust" to get
back into that test routine.
Verify as the data value is changed, look at the glass plates
located in the OPS to verify the glass movement (See
Table 4.)
Adjust data Downside of
glass plate
00000011 Vertical glass left side
00000012 Vertical glass right side
00000013 Horizontal glass front side
00000014 Horizontal glass rear side
Table 4. Adjust data, Glass movements and Picture shift
FVS-1000 MMP1
B. In this section you will check the feedback signal from
the glass movement sensors.
Connect scope probe to SV186 TP301 (Vertical glass
movement) and TP311 (Horizontal glass movement).
Type "adjust" on the PC hyper terminal. Change the
data value as in the previous step between the
"00000011" and "00000012" or "00000013" and
"00000014". Verify the vertical sensors output voltage
meets the specifications as table below.
Adjust data
00000011
00000012
00000013
00000014
If any of these are out of range, adjust the RVs on SE-515
(See Table 6 for RVs to adjust).
RV on SE-515
RV2/SE-515
RV3/SE-515
RV5/SE-515
RV6/SE-515
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these RV adjustments do interact so repeat both measure-
ments
1
Picture shift on
monitor
Vertically down
Vertically up
2
Horizontally left
Horizontally right
3
4
6-4. OPS Assembly Adjustment
TP to check
TP301/SV-186
TP301/SV-186
TP311/SV-186
TP311/SV-186
Table 5. Adjust data and signals
TP to check
TP311/SV-186
TP301/SV-186
TP311/SV-186
TP301/SV-186
Table 6. RVs and TP to check
RV6 RV3 RV4
D C
SE-515 board (B side)
Signal must be
5 to 3.5 V
0 to 1.5 V
5 to 3.5 V
0 to 1.5 V
Adjustment
Offset adjust
Offset adjust
Gain adjust
Gain adjust
RV5 RV2
RV1
B A
6-11