DSC-T50 (serv.man4) - Sony Digital Camera Service Manual (repair manual). Page 21

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DSC-T50_ADJ

Preparation of Flange Back Adj.
(Using the flange back adjustment jig)
(Luminance: about 300 lux)
Note 2: When using the flange back adjustment jig, take care of

the following points:
• For the illumination, use a light source such as an in-

candescent lamp or inverter type fluorescent light free
from flickering.

• Do not make an adjustment in the environment where

fluorescent lamp flickering occurs even if the illumi-
nance can be ensured with the room illumination only.
Use an incandescent lamp or inverter type fluorescent
light at a place free from the influence of room illumi-
nation.

1) Install the flange back adjustment jig so that the distance be-

tween it and the front of lens of camera is less than 3 cm.

2) Make the height of flange back adjustment jig and the camera

equal.

3) Check that the center of chart meets the center of shot image

screen with the zoom lens at TELE end and WIDE end respec-
tively.

[Automatic Adjustment Program execution items and
sequence]
1. Data Setting during Camera Adj.
2. Flange Back Adj.
3. Release of Data Setting during Camera Adj.

Preparation of Flange Back Adj.
(Using the minipattern box)
1) The minipattern box is installed as shown in the following fig-

ure.
Note 1: The attachment lenses are not used.

2) Install the minipattern box so that the distance between it and

the front of lens of camera is less than 3 cm.

3) Make the height of minipattern box and the camera equal.
4) Check the output voltage of the regulated power supply is the

specified voltage 

± 0.01 Vdc.

5) Check that the center of Siemens star chart meets the center of

shot image screen with the zoom lens at TELE end and WIDE
end respectively.

Specified voltage: The specified voltage varies according to the

minipattern box, so adjustment the power sup-
ply output voltage to the specified voltage writ-
ten on the sheet which is supplied with the
minipattern box.

Minipattern box

Below 3 cm

Camera

Red (+)

Black (–)

Yellow (SENS +)

White (SENS –)

Black (GND)

Need not connected

Regulated power supply

Output voltage : Specified voltage 

± 0.01 Vdc

Output current : more than 3.5 A

Flange back adjustment jig

Below 3 cm

Camera