Sanyo VPC-GH2 Service Manual page 18

Dsc Calibration
Infinity calibration :
AF_TEMP_AD_I: 497
PZ_BR: 5
AF_BR: 4
AF_I_WIDE: 0
AF_I_MID1: 0
AF_I_MID2: 0
AF_I_TELE: 0
IRIS_GAIN: 72
IRIS_OFFSET: 130
Adjustment value determination is effectuated using below
values.
The adjustment values fulfill the conditions below, they are de-
termined as within specifications.
Adjustment value determination
AF_TEMP_AD_I: ATADI
ATADI: adjustment value of focus temperature A/D
(250<=ATADI<=893)
PZ_BR: PBR
PBR: adjustment value of zoom backrush pulse
(0<=PBR<=10)
AF_BR: ABR
ABR: adjustment value of focus backrush pulse
(0<=ABR<=10)
AF_I_WIDE: ZIW
ZIW: infinity adjustment value of focus at zoom position
wide (–55<=ZIW<=30)
AF_I_MID1: ZIM1
ZIM1: infinity adjustment value of focus at zoom position
middle1 (–80<=ZIM1<=20)
AF_I_MID2: ZIM2
ZIM2: infinity adjustment value of focus at zoom position
middle2 (–68<=ZIM2<=32)
AF_I_TELE: ZIT
ZIT: infinity adjustment value of focus at zoom position
tele (–31<=ZIT<=69)
IRIS_GAIN: g
g: adjustment value of gain (0<=g<=255)
IRIS_OFFSET: o
o: adjustment value of offset (0<=o<=255)
x
OK
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– 18 –
2. Lens Adjustment (1m)
Camera
Preparation:
POWER switch: ON
Adjustment condition:
Siemens star chart (A3)
Fluorescent light illumination with no flicker
Illumination above the subject should be 700 lux ± 10%.
Note:
Do not vibrate during the adjustment.
If readjusting after it has already been adjusted, wait for 15
minutes or more for the unit to cool down first.
Adjustment method:
1. Set the siemens star chart 100 ± 0.5 cm from lens surface
so that it becomes center of the screen (zoom wide and
tele). Set the camera and the chart in a straight, and do not
put optical systems (mirror and conversion lens etc.)
2. Double-click on the DscCalDi.exe.
3. Click the "Focus", and Click the "Yes".
4. Lens adjustment value will appear on the screen.
5. Click the OK.
DscCalDi
Focus Result
!
AF_TEMP_AD: 467
AF_WIDE: -40
AF_MID1: -40
AF_MID2: -23
AF_TELE: 17
100 0.5 cm
Siemens
star chart
x
OK