Rohde & Schwarz 1138.4000, Service Manual

Page: 97 / 213

Radio Unit R&S CRTU-RU Module Replacement
1140.0050.82 3.23 E-4
Replacing the Hard Disk in the FRONT MODULE
(See chapter 5, spare part list, Current No. 310 and explosion drawing 1138.4000.01 D sheet 4 )
Note: The CRTU-RU must be equipped with a programmed hard disk (see spare part list,
Current No. 310). Software installation will generally fail if an empty hard disk is installed.
The hard disk is incorporated outside on the back of the aluminum panel of the FRONT MODULE. For
replacement proceed as follows:
Saving Customer-Specific Data
In case the CRTU-RU belongs to a CRTU-G or CRTU-S system the following files, containing
registration codes, have to be saved onto a PCMCIA card or to the network site.
C:\CONFIG\REG_INFO.DAT
Opening the instrument and removing the FRONT MODULE
¾
Switch off the instrument, pull the mains plug and unscrew the rear-panel feet.
¾
Place the instrument onto the front carrying handles, push the tube upwards and take off.
Removing the hard disk from the FRONT MODULE
¾
After unscrewing the two countersunk screws at the top left instrument frame, slightly lift the cover at
the top of the instrument, slightly shift towards the right and lift off.
¾
Remove the ribbon cable from the hard disk to the FRONT MODULE CONTROLLER, unscrew the
two screws on the back of the aluminum panel of the FRONT MODULE and pull out the hard disk.
Unscrew the hard disk from the disk holder.
Installing the new hard disk
¾
Carefully fit the new hard disk, fasten with the four screws to the disk holder. Insert the hard disk with
the disk holder on the back of the aluminum case of the FRONT MODULE. Be careful with the lower
cover plate locking in the concerning opening
.
Connect the ribbon cable to the FRONT MODULE CONTROLLER. Fit the disk holder with two
screws to the aluminum panel of the FRONT MODULE.
¾
Complete the instrument without causing damage to the cables.
Putting into operation
Note: See also chapter 4, Software Update/Installing Options. Please note in particular the
relationship between software products, boot partitions and disk partitions described in
Table 4-1.
¾
Connect the instrument to the mains and switch on: The built-in FRONT MODULE CONTROLLER
registers on the LCD. The BIOS is factory-set to the CRTU Radio Unit , the new hard disk is
automatically detected.