R&S ZVA24, Service Manual

Page: 357 / 606

R&S ZVA Repairs
1177.5333.02 3.49 E-11
Replacing Disk Drive A30
(See Chapter 5, Spare Parts List, Item 670 and drawings 1145.1110 and 1145.1310)
Opening the instrument and removing the disk drive

Turn off the instrument and disconnect from the mains, screw off the 4 rear-panel feet (460) and pull
off the enclosure (400) backwards.

Remove the 2 sems screws (700) and carefully lift out the floppy disk drive (670), together with the
floppy drive holder (680).
N.B.: The floppy cable to the motherboard is still connected.

Disconnect floppy cable (690) on the floppy disk drive.
Installing a new disk drive and reassembling the instrument

Release the floppy disk drive by removing the 3 sems screws (700) from the floppy drive holder
(680) and insert a new floppy disk drive (670) into the floppy drive holder (680).

Connect floppy cable (690) on the floppy disk drive.

Resecure the floppy disk drive (680) from above to the side of the instrument with the fan using 2
sems screws (700).
N.N.: Center the floppy disk drive wrt the cut-out in the front cover.

Slide the enclosure (400) back on and screw the 4 rear-panel feet (460) into position.

Connect the mains cable, turn on at the mains switch and press the ON key.
Function test

The instrument boots up and starts the instrument firmware.

Insert a 3 ½

disk with files.

Press the FILE key, then the File Manager softkey and Edit Path.
 Enter “ a “ and “ : “ with the screen functions and terminate with the Enter key.

The directory structure of the disk displayed on the screen shows that the floppy disk drive is
operating properly.