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Ricoh FACSIMILE FAX77 - Page 119

Ricoh FACSIMILE FAX77
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- Procedures -
Step Item
Procedure
1
Alignment 1. Access the SBU as explained in
“Preparation” above.
2. Set the oscilloscope scale to 0.2
V/unit (vertical) and 0.5 ms/unit
(horizontal).
3. Connect the oscilloscope probe to
XVIDEO (pin 1 - blue wire) and the
ground to GND (pin 4 - black wire)
on the test lead.
4. Light the xenon lamp (see page 2-
24).
5. Place the scan line test chart [A] on
the exposure glass as shown.
6. Fit the adjustment knobs [B]
through the slots in the SBU as
shown.
7. Loosen the SBU securing screws
[C].
8. Turn the adjustment knobs until the
scanner is aligned.
9. Carefully tighten the SBU securing
screws.
3-14

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