Reverse the dismounting procedure to mount a part.
NOTE
After finishing the necessary work, check to see that the CL-PC starts up normally.
5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E
MT-57
5.2.2 Covers
Dismounting procedure
1.
Make preparations for parts replacement.For the parts replacement procedure, see “5.2.1 Preparation for Parts Replacement”.
2.
Perform the following. When dismounting the right-side and left-side covers:
Remove screws and dismount the cover while sliding it slightly to the back of the CL-PC.
When dismounting the front cover:
Insert a screwdriver in a hole located on top of the front cover to unlock it to dismount.
Mounting procedure
Reverse the dismounting procedure to mount a cover.
5.2.3 CPU Fan
Dismounting procedure
1.
Dismount the left-side cover.For how to dismount the left-side cover, see “5.2.2 Covers”.
2.
Tilt the CL-PC so that its left side faces up.3.
Disconnect the CPU fan connector from the motherboard.4.
Raise the CPU fan levers to unlock them accordingly.MT000053.EPS
Lever
5.
Unlock the four claws to dismount the CPU fan.MT000054.EPS
[Unlock]#1 Four claws
#2[Dismount]
CPU fan
5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E
12.10.2010 FM5817
MT-58
Mounting procedure
Reverse the dismounting procedure to mount the CPU fan.
NOTE
Pay due attention to the direction where the CPU fan is to be mounted.
CPU fan
MT000055.EPS
Cable
5.2.4 Hard Disk
NOTE
Use only NEC-specified hard disks. If a hard disk of a third party is used, an error may occur not only with it but also with the CL-PC main unit. Repair of an error or damage caused by the use of a third party’s hard disk will be at your own cost even still under warranty.
Dismounting procedure
1.
Dismount the front cover.For how to dismount the front cover, see “5.2.2 Covers”.
2.
Dismount the CPU fan.For how to dismount the CPU fan, see “5.2.3 CPU Fan”.
3.
Disconnect cables from the hard disk. NOTE
Disconnect cables carefully. When doing so, exercise care not to hit your hands against surrounding parts, which, otherwise, may damage those parts incidentally.
4.
Remove the two screws from the front.5.
Remove the hard disk bay while sliding it slightly to the back of the CL-PC. NOTE
Hold tight the hard disk bay, exercising due care so as not to touch CPU or parts mounted on the motherboard.
6.
Remove the four screws from the hard disk bay to dismount the hard disk.5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E
MT-59
Mounting procedure
1.
Mount the hard disk on the hard disk bay. NOTE
Make sure that the hard disk has been set to be the MASTER and then mount it appropriately. Note, however, that you do not have to check the settings when the NEC-PC (RAID specification) is used.
Rear of the hard disk
MT000050.EPS
2.
Remount the hard disk bay on the CL-PC.3.
Connect the hard disk power cable and interface cable appropriately.4.
Mount the CPU fan.For the CPU fan mounting procedure, see “5.2.3 CPU Fan”.
5.
Check hard disk power cable and interface cable connection status.6.
Remount the front cover.For how to mount the front cover, see “5.2.2 Covers”.
NOTE
If the CL-PC does not start running normally, check to see if the cables are connected properly.
5.2.5 CD-ROM Drive and FD Drive
Dismounting procedure
1.
Dismount the front cover, right-side cover and left-side cover.For how to dismount the front cover, right-side cover and left-side cover, see “5.2.2 Covers”.
2.
Disconnect cables from the CD-ROM drive or FD drive.3.
Remove screws to dismount the CD-ROM drive or FD drive. REFERENCE
Screws to be removed are as follows.
CD-ROM drive Right side : Two screws Left side : Two screws
FD drive Right side : One screw Left side : Two screws
Mounting procedure
NOTE
Connect cables correctly, as illustrated below, paying attention to the FDD interface cable polarity.
MT000051.eps
For details of error messages appearing during diagnosis for initialization and actions to take, see “5.3 NEC PC Diagnosis Messages During Initialization”.
5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E
12.10.2010 FM5817
MT-60
5.2.6 CPU
CAUTION
Whenever dismounting/remounting the CPU, be sure to wear a wrist strap to discharge the buildup of static electricity that is held by the human body, otherwise, the CPU may be damaged due to static electricity discharged from the human body.
Dismounting procedure
1.
Dismount the CPU fan.For how to dismount the CPU fan, see “5.2.3 CPU Fan”.
2.
Raise the CPU socket levers to remove the CPU. NOTE
Carefully handle the CPU as it can be damaged easily.
Mounting procedure
NOTES
When a floppy disk used for BIOS upgrading is attached to the CPU for replacement, upgrade BIOS accordingly after the CPU has been replaced.
Exercise care not to mount the CPU in an incorrect direction.
CPU
MT000056.EPS
Reverse the dismounting procedure to remount the CPU.
After assembling the CL-PC properly, turn ON the power to the CL-PC to make sure that no error messages appear during diagnosis for initialization.
For details of error messages appearing during diagnosis for initialization and actions to take, see “5.3 NEC PC Diagnosis Messages During Initialization”.
5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E
MT-61
5.2.7 Housing Fan
Dismounting procedure
1.
Dismount the CPU fan.For the CPU fan dismounting procedure, see “5.2.3 CPU Fan”.
2.
Disconnect the housing fan connector from the motherboard.3.
While holding the housing fan with a hand, remove the two screws to dismount it. Mounting procedure
NOTE
Pay attention to the housing fan mounting direction.
Label face Cable
Rear of the CL
MT000052.EPS
Reverse the dismounting procedure to remount the housing fan.
5.2.8 Power Supply Unit
Dismounting procedure
1.
Dismount the front cover, right-side cover and left-side cover.For how to dismount the front cover, right-side cover and left-side cover, see “5.2.2 Covers”.
2.
Remove screws from the CD-ROM drive to slide it to the front.3.
While holding the CL-PC with both hands, tilt the CL-PC gently so that its left side faces up.4.
Remove the hard disk bay.For how to remove the hard disk bay, see “5.2.4 Hard Disk”.
5.
Disconnect cables from the power supply unit. For motherboard (main power supply/CPU power supply)
For hard disk
For CD-ROM drive
For FD drive
6.
While holding the power supply unit with a hand, remove the four screws to dismount it. Mounting procedure
Reverse the dismounting procedure to remount the power supply unit.
After assembling the CL-PC properly, turn ON the power to the CL-PC to make sure that no error messages appear during diagnosis for initialization.
For details of error messages appearing during diagnosis for initialization and actions to take, see “5.3 NEC PC Diagnosis Messages During Initialization”.
5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E
12.10.2010 FM5817
MT-62
5.2.9 Memory
CAUTIONWhenever dismounting/remounting memory, be sure to wear a wrist strap to discharge the buildup of static electricity that is held by the human body, otherwise, the CPU may be damaged due to static electricity discharged from the human body.
NOTE
Use only NEC-specified memories. If a memory of a third party is used, an error may occur not only with it but also with the CL-PC main unit.
Repair of an error or damage caused by the use of a third party’s memory will be at your own cost even still under warranty.
Dismounting procedure
1.
Remove the hard disk bay.For how to remove the hard disk bay, see “5.2.4 Hard Disk”.
2.
Open levers on both the right-and-left sides of the memory socket to remove the memory.Lever
MT000057.EPS
Mounting procedure
1.
Set the memory in an upright position and push it in the socket. When the memory is pushed in the socket, levers located on both the right-and-left sides will close automatically.
NOTE
Pay due attention to the memory mounting direction. A notch is provided on the terminal side of the memory to prevent it from being pushed in the socket mistakenly.
2.
Remount the hard disk bay.For how to remount the hard disk bay, see “5.2.4 Hard Disk”.
3.
After assembling the CL-PC properly, turn ON the power to the CL-PC to make sure that no error messages appear during diagnosis for initialization. NOTE
If an error message is displayed, perform “ Error cancel procedure”.
“ Error cancel procedure”
5.2 Service Parts Replacement
CR-IR346CL Service Manual
010-054-22E