DSC-J20 (serv.man2) - Sony Digital Camera Service Manual (repair manual). Page 8

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DSC-J20_ADJ
5-8
5-3-9. Flash WB Adjustment
Preparing the Flash Adjustment Box
A dark room is required to provide an accurate flash adjustment. If it is not available, prepare the flash adjustment box as shown below.
1)  Provide woody board A, B, C and D of 15 mm thickness.
2)  Apply black mat paint to one side of woody board A, B and D.
3)  Attach background paper (J-2501-130-A) to woody board C.
4)  Assemble so that the black sides and the background paper side of woody board A, B, C and D are internal. (Fig. 5-3-30)
Woody board A (2)
400 mm
Woody board B (2)
370 mm
Woody board C (1)
700 mm
513 mm
513 mm
700 mm
Woody board D (1)
370 mm
370 mm
700 mm
730 mm
100 mm
120 mm
Woody board A
Woody board B
Woody board B
Woody board C
Woody board A
Woody board D
Front of the lens
L = 500 mm
L
Camera
Adjustment order
Screen display
5-3-8. Light/S.S Adjustment
The Light/S.S (Light Dead Pixel/Slow Shutter Dead Pixel)
Adjustment order is as follows.
Note:
Perform the Light/S.S Adjustment after those performed in 5-3-3 to 5-3-4.
The adjustment is finished normally.
OK
The adjustment is complete.
The adjustment is finished abnormally.
Saving ig
Threshold :
DP NUM :
Time (Sec)
145
6000
31
1
FINISH.. RE
NG
Malfunction of Light 
adjustment result
Confirm the indication
on the screen.
Finished abnormally.
Finished normally.
In case of the adjustment is finished abnormally,
the following indication appears on the screen.
(Fig. 5-3-27, 5-3-28)
In this case, confirm the adjusting environment
and readjust.
Press the Control button “ b ” “ B ” and “ v ” “ V ” to change selected item. Choose “Light S.S (BLACK)”, 
press the Control button “ z ”, select “OK”, and press the Control button “ z ” to start.
*1  If the adjustment is disabled, refer to “5-1-6. Enabling the Adjustment” to enable the adjustment. (Page 5-3)
*2  It takes approximately 15 minutes or more on this adjustment.
In case of the adjustment 
is finished normally, the 
adjustment completion 
indication appears on the 
screen. (Fig. 5-3-26)
* The Self-Timer lamp 
lights up. (Fig. 5-3-25)
Check that the camera is on the adjustment mode.
* For the setting procedure of the adjustment mode, refer to “5-1-5. Setting the Adjustment Mode” (Page 5-3).
Cover camera lens (All black). (Fig. 5-3-24)
Turn on the power again in the Adjustment mode
to proceed to the next process.
Self-Timer lamp
Fig. 5-3-25
Camera
Equipment required: Cover camera lens
(All black)
Black cloth
NG
Malfunction of S.S 
adjustment result
Fig. 5-3-24
Fig. 5-3-26
Fig. 5-3-27
Fig. 5-3-28
Fig. 5-3-29
Fig. 5-3-30
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