FujiFilm CR-IR341 Service Manual page 643

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C
ONTENTS
Checks to Determine If Replacement of Polygonal Mirror Assembly Is Required
CAUTION
Before removing the covers, be sure to turn OFF the high-voltage switch. If the machine is
powered ON with any of the covers removed, the photomultiplier will be damaged.
(1) Power OFF the machine.
(2) Turn OFF the high-voltage switch (S1) located on the SCN08A board.
(3) Check the SCN08A board.
"10.1 Checking and Replacing SCN08A Board"
(4) Make sure that the connector (CN1) on the polygon driver board and the connector
(CN3) on the SCN08A board are locked securely.
(5) Verify that the no-fuse breaker (NFB5) of the SCN08A board is in its shorted condition
(button depressed).
Push the NFB5 button several times to place the breaker in its shorted condition.
NOTE
With board version J or later, the no-fuse breaker (NFB) is replaced with the fuse.
Thus, make sure that the fuse has not been blown.
(6) Power ON the machine.
(7) Touch the U-Utility button.
The screen switches to the U-Utility mode.
(8) Touch the upper left and upper right corners of the operation panel in sequence.
M-Utility is activated.
(9) Select "5. SCANNER UTILITY", "2. POLYGON" and "2. ON" in sequence.
009-051-04
009-051-06
05.31.99 FM2460 04.20.2001 FM3006
3 4 5 6
Polygon driver board
(4)
CN1 CN2
CR-IR341 Service Manual
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SCN08A board
(4), (5)
CN3
Scanning optics unit
MC - 152
NFB5
S1
FR1H1125.EPS
MC - 152