FujiFilm CR-IR341 Service Manual page 653

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C
ONTENTS
10. Subscanning Unit
This section describes procedures for checking and replacing parts of the subscanning unit
to be replaced.
10.1 Checking and Replacing SCN08A Board
The SCN08A board is intended to control the scanner.
Because the SCN08A board has no memory for storing scanner control parameters, param-
eter setting or DIP switch setting associated with replacement is not required.
CAUTION
When servicing any printed circuit board, be sure to wear an anti-static wristband to ensure
proper grounding. If not, static electricity built on the human body may cause damage to electric
parts mounted on the board.
Checks
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) Remove the following covers.
Lower front cover, lower right-hand side cover
"3. Removing and Reinstalling Covers"
(3) Put the high-voltage switch (S1) of the SCN08A board in the OFF position.
(4) Make sure that the no-fuse breakers (NFB1-10) are in their shorted condition.
Push the no-fuse breaker button several times to put the button in its depressed condi-
tion (breaker shorted condition), and then take the following steps.
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.
009-051-04
009-051-06
05.31.99 FM2460 04.20.2001 FM3006
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NFB5
NFB8
NFB7
NFB10
NFB6
NFB9
NFB3
NFB1
NFB4
SCN08A board
NFB2
CR-IR341 Service Manual
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S1
OFF state
FR1H1193.EPS
MC - 162
MC - 162