FujiFilm CR-IR341 Service Manual page 636

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C
ONTENTS
9.4 Checking and Replacing LD Assembly
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.
First check the SCN08A board before performing the procedures described in this section.
"10.1 Checking and Replacing SCN08A Board"
CAUTIONS
• Do not disconnect the connectors CN2 and 3 from the LDD08A board. If they are discon-
nected, the LD protection is disabled, so that the LD may fail.
• Do not touch the patterns and ICs of the LDD08A board.
• Carefully handle the scanning optics unit, exercising care to avoid shock to it.
• When servicing the board, be sure to wear an anti-static wristband to ensure proper ground-
ing. If not, static electricity built on the human body may cause damage to electric parts
mounted on the board.
(1) Power OFF the machine.
(2) Make sure that the high-voltage switch (S1) is in the OFF position.
CN9
CN1
009-051-04
05.31.99 FM2460
3 4 5 6
CN7 CN8
S1
SCN08A board
NFB3
NFB1
CR-IR341 Service Manual
7 8 9 10
(2)
OFF state
FR1H1275.EPS
MC - 145
MC - 145