Polaroid SprintScan SS35 Repair Manual page 61

Slide scanner
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Slide Scanner Repair Manual
Focus (Non-Uniformity) Adjustment
1. Setup the dual trace oscilloscope as follows:
• Time Base - 200 usec/div
• Amplitude - 500 mv/div
2. Connect the dual trace oscilloscope to the applicable main controller board test points
(Figure 3-5) as follows:
Note: Figure 3-6 displays the RGB raw output of the VSP before the focus target
is inserted in the light path.
Oscilloscope
External (Ext) BNC
Channel 1 input BNC
SS35/SS35 ES
GND
SS35 PLUS
SS35/SS35 ES
J7 - pin 2
J2 - pin 8
LSYNC
J 10
1
2
J 9
J 6
J 8
J 7
J 5
J 2
J 3
J12
J10
J8
Figure 3-5. Main controller PC board test points
SS35 PLUS
LSYNC
ADIN
Not Used
J 4
J 1
7
5
8
6
Video
4
2
Out
(GND's - Pins 1, 3, 5, 7)
J14
J13
SCSI
Fuse
LYSNC
J6
AGND
J5
ADIN
J3
61
Calibration and Adjustments
3
1
J1

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