Kodak DirectView CR 825 Theory Manual page 97
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Also See for DirectView CR 825:
- Diagnostics manual (180 pages) ,
- Adjustments and replacements (160 pages) ,
- Installation instructions manual (72 pages)
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THEORY GUIDE
10DEC05
TG4825-1
Page
LASER DIODE
97 of 120
DRIVER - A17
LASER DRIVER
PRE-REGULATOR -
A18
BOARD
Includes a LASER DIODE that provides the red laser light used to
scan the SCREEN. The GALVO BOARD A4 controls the operation of
the LASER DIODE DRIVER BOARD A17 by sending and receiving
signals through the LASER DRIVER PRE-REGULATOR BOARD
A18.
Controls the power provided to the LASER and has 3 modes of
operation:
•
Threshold" - supplies minimum power when the LASER is moving
to the start of the next line - retrace
•
"Scan" - supplies full power to the LASER during scanning
•
"Full-on" - used for diagnostics
Description
Logic and Control
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