Camera System Adjustment; Adjustment Points When Major Parts Have Been Replaced; Power Supply Voltage Check; Hall Adjustment - Sony MVC-FD71 Service Manual
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Also See for MVC-FD71:
- Operating instructions manual (80 pages) ,
- Operating instructions manual (80 pages) ,
- Limited warranty (1 page)
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1-3.
CAMERA SYSTEM ADJUSTMENTS
1. Adjustment points when major parts have been
replaced
When the CCD imager or lens block is replaced, adjust the items
indicated by ® in the following table.
When the CCD
imager is replaced
HALL adjustment
Flange back adjustment
Color reproduction
adjustment
Auto white balance
reference data input
Auto white balance
adjustment
Note: The above described table is applied to MVC-FD71 model.
2. Power supply voltage check (FC-66 board)
Subject
Any subject
Measuring equipment
Digital voltmeter
D3.2 V check
CN401 1 Pin
Measurement Point
(CN401 !• Pin: GND)
Specification Value
3.20 ± 0.1 Vdc
CAM15 V check
CN101 8 Pin
Measurement Point
(CN101 4 Pin: GND)
Specification Value
15.00 ± 0.4 Vdc
CAM –5.5 V check
CN101 5 Pin
Measurement Point
(CN101 4 Pin: GND)
Specification Value
–5.5
Check procedure
1) Check that all power supply voltages satisfy the specified value.
When the lens
block is replaced
®
®
®
®
®
®
®
®
®
+ 0.2
Vdc
– 0.3
3. HALL adjustment
This adjustment sets the amplifier gain and offset to detect the iris
position of the lens. If disordered, the iris will oscillate or the indoor-
outdoor white balance will be faulty.
Subject
Measurement point
Measuring equipment
Adjustment page
Adjustment address
Specification value
Note 1: The PAUSE button on the adjustment remote commander
must be pressed.
Adjustment procedure:
1) Set data: 01 to page: 0, address: 01.
2) Set data: 03 to page: 0, address: 03.
3) Set data: 03 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
4) Set data: 40 to page: F, address: C7, and press the PAUSE button
on the adjustment remote commander.
5) Read DDS displayed data (Note 2), and assume it as W
Note 2: Lower 2 digits displayed at the lower right of LCD screen.
00 00 XX
nW2
6) Set data: 30 to page: F, address: C7, and press the PAUSE button
on the adjustment remote commander.
7) Read DDS displayed data, and assume it as W
8) Set data: 01 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
9) Set data: 30 to page: F, address: C7, and press the PAUSE button
on the adjustment remote commander.
10) Read DDS displayed data, and assume it as K
11) Set data: 40 to page: F, address: C7, and press the PAUSE button
on the adjustment remote commander.
12) Read DDS displayed data, and assume it as K
13) Convert W
, W
, K
1
2
W
', K
', and K
' (see Table 5-1-1. Hexadecimal-Decimal
2
1
2
Conversion table).
14) Calculate X
' with the formulas given below (calculate decimal
1
numbers).
A'=W
'+K
'-W
'-K
2
1
1
B'=W
'-K
' ............................................................ Formula 2
1
1
1600+(48xA')-(16xB')
X
'=
1
A'
15) Convert X
' into hexadecimal number to get X
1
(Round off the decimal place.)
16) Set data: X
to page: F, address: C7, and press the PAUSE button
1
on the adjustment remote commander.
17) Set data: 01 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
18) Change the data on page: F, address: C8, so that DDS displayed
data is "14".
19) Press the PAUSE button on the adjustment remote commander.
20) Set data: 03 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
5-12
Any subject
DDS display on LCD screen
F
C7, C8
When data on page: 2, address: 01 is 01,
(Note 1)
Displayed data is 12 to 16.
When data on page: 2, address: 01 is 03,
(Note 1)
Displayed data is 76 to 7A.
.
1
.
1
.
2
, and K
into decimal numbers to get W
1
2
' ............................................ Formula 1
2
.................................. Formula 3
.
1
.
2
',
1
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