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Instrument Construction and Function Description
R&S ZVB
1145.1078.82 3.38
E-4
Push 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.
Replacing Motherboard A10
(See Chapter 5, Spare Parts List, Item 510 and drawings 1145.1010, 1145.1290)
The motherboard is located on the base of the instrument.
N.B.:
The motherboard can only be replaced at R&S service centers.
Opening the instrument and removing the motherboard
Turn off the instrument and disconnect from the mains, screw off the 4 rear-panel feet (460) and
pull off the enclosure (400) backwards.
Lift off the top instrument cover (296) after undoing the 23 (2 ports) or 28 (4 ports) countersunk
screws (298).
Extract the top boards: Use ejector lever for the synthesizer and network controller, hold the
frequency reference by the enclosure.
Remove the power supply (550).
•
Remove the 2 countersunk screws (796) in the top of the instrument and the 8 sems
screws (795) in the rear panel of the power supply.
•
Pull out the power supply unit a little at the rear of the instrument, remove screw (737) and
anti-touch guard (736).
•
On the left-hand side of the power supply, pull off the protective conductor cable and the
fuse board (735) to the left.
•
On the right-hand side of the power supply, pull off the plug-in connections to the
motherboard.
•
Remove the power supply unit.
Remove the 4 screws in the front handles (410), right and left, and take off the front handles.
Remove 3.5 mm connection cables (only with option R&S ZVBx-B16)
Remove the countersunk screw (390) next to the display and pull off the front cover (300 to 330)
forwards
Remove the 2 countersunk screws (610) in the top of the front frame and the 2 in the bottom.
Remove the countersunk screws (176) (4 ), (177) (6 ), (178) (8).
Pull out the front unit together with the keyboard and display (600, 601, 602, 603) forwards.
CAUTION
The cables to the front module controller are still connected.
Содержание ZVB 14
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Страница 58: ...Table of Contents Alignment R S ZVB 1145 1078 82 I 2 2 E 4 ...
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Страница 154: ...Table of Contents Software Update Installation of Options R S ZVB 1145 1078 82 I 4 2 E 4 ...
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Страница 160: ...1145 1078 82 5 2 E 4 Spare Parts List Mechanical Drawings ...
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Страница 189: ...1145 1078 82 5 19 E 4 Block Circuit Diagram ...
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