Repairs R&S ZVA
1177.5333.02 3.44 E-11
Removing the LCD
Disconnect the display cable (945) by cutting through the adhesive label(946).
Remove the display connector (1020) after you have undone the two screws (1040).
Disconnect the display cable (1030) at the display (910).
Remove the display (910) after removing the 4 screws (920)
Installing and putting into operation a new LCD or DC/AC converter
Reinstall the new LCD or new DC/AC converter by reversing the disassembly procedure, refit all
screws and reconnect the cables that have been disconnected (drawing 1145.1390).
When replacing the display (921) or display cable (945), use a new adhesive label (946) to secure
the cabling.
Place the key-side of the front unit on the top of the instrument so that the cables can be connected
to the front module controller.
Carefully connect all cable connectors to the front module controller, ensuring that the polarity is
correct.
Battery
+
LAN 1 LAN 2
Contact side of switching foil (keyboard) up
Connector for rotary pulse generator
Controller module
CPU
Connector for display and
converter adapter board
Front Module Controller Typ FMR6
Controller module
Fig. 3-9 Location of the edge contacts on the front module controller
Reinsert the front unit in the instrument and secure to the front frame with 4 countersunk screws
(610).
Refit the countersunk screws (168) (2 ), (153), (154), (163), (164).
Avoid trapping cables and ensure cabling is tidy.
Replace the front cover (300, 303, 306, 310, 313, 316) and secure with countersunk screw (390).
Refit the 2 front handles (410) using the 4 screws.
Fit the termination and the 3.5mm connection cables (only with option ZVAx-B16).
Connect the mains cable, turn on at the mains switch and press the ON key.
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