Rohde & Schwarz 1138.4000, Service Manual

Page: 100 / 213

Module Replacement Radio Unit R&S CRTU-RU
1140.0050.82 3.26 E-4
¾
Reboot the CRTU-RU (done automatically) and boot into “Windows OPSW” within BootMagic

menu.
¾
Login as “Administrator” with no password.
¾
Complete each modification of a CRTU-RU belonging to a CRTU-G or CRTU-S system by checking
the tray icon in the bottom right corner of the desktop. For each system the correct tray icon must be
displayed.
or
Cleaning up the system:
¾
Empty the recycle bin.
¾
Run a cleanup process on each visible drive (Windows Explorer
→
right mouse-click on each drive
→
properties
→
Disk cleanup).
¾
Switch off the unit. Remove the Y-cable and connect only the customer's harddisk with the ribbon
cable to the primary IDE controller of the CRTU-RU.
¾
Re-mount the cover plate and fit on back the housing of the CRTU-RU.
Replacing the Memory Modules in the FRONT MODULE
(see chapter 5, spare part list, Current No. 290 and explosion drawing 1090.9244.01 D sheet 4 )
The memory modules are incorporated in the FRONT MODULE. The FRONT MODULE CONTROLLER
features two SODIMM-144 slots, in each of which up to 256 MB memory can be fitted. The BIOS
automatically detects the size of the memory modules. For replacement proceed as follows:
Opening the instrument and removing the FRONT MODULE
¾
Switch off the instrument, pull the power plug, unscrew the rear-panel feet.
¾
Place the instrument onto the front carrying handles, push the tube upwards and take off.
¾
Unscrew the four screws of the front handles from the instrument frame on both sides and take off
the front handles.
¾
Unscrew a countersunk screw (if present) at the front on the labeling panel next to the spinwheel and
pull off the labeling panel towards the front.
¾
Unscrew two countersunk screws in the front frame at the top and at the bottom as well as two
countersunk screws at the front above the AUX1/2 BNC connectors.
¾
Unscrew a combi screw at the top of the module support for support of the PCMCIA INTERFACE.
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
Slightly push the FRONT MODULE from the rear to the front using little pressure.
Note: Note the three ribbon cables for the PCMCIA INTERFACE that are still connected to the
MOTHERBOARD1.
¾
After sliding out the FRONT MODULE disconnect the three ribbon cables from the
MOTHERBOARD1 connector.
¾
Take the FRONT MODULE completely out of the CRTU Radio Unit .