R&S ZVA24, Руководство по обслуживанию

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R&S ZVA Repairs
1177.5333.02 3.39 E-11
Replacing the Lithium Battery on the Front Module Controller
(See Chapter 5, Spare Parts List, Item (582), and drawings 1145.1110, 1145.1290 )
The lithium battery is located on the front module controller behind the front unit.
Do not expose lithium batteries to high temperatures or naked flames.
Keep batteries away from children.
If the battery is not replaced correctly, there is a risk of explosion. Only use R&S-type
replacement batteries (See Chapter 5, Spare Parts List, Item 776 for type FMR6).
Lithium batteries are classified as special waste - only use designated containers for disposal.
Opening the instrument and removing the front unit

Turn off the instrument and disconnect from the mains.

Remove termination and 3.5mm connection cables (only with option ZVAx-B16)

Remove the 4 screws from the front handles (410), left and right, and take off the front handles.
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Remove the countersunk screw (390) next to the display and pull off the front cover (300, 303, 306,
310, 313, 316) forwards

Remove the 2 countersunk screws (610) in the top of the front frame and the 2 in the bottom.

ZVA8: Remove the countersunk screws (168) (2 ), (153), (154), (163), (164)

Pull out the front unit together with the keyboard and display (600, 604) forwards.
Risk of damage
The cables to the front module controller are still connected.

Disconnect the cables to the LCD, the DC/AC illumination converter, the key pad (keyboard), the
tachogenerator and, if necessary, the network connection on the front module controller.
Risk of damage
When disconnecting cables, be especially careful with the cable to the keyboard. It is a
foil cable and can only be removed when the locking device on the foil-cable connector
is released.