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Instrument Construction and Function Description
R&S ZVB
1145.1078.82 3.84
E-4
Testing the Motherboard
28 V supply
Using a multimeter, measure the voltage at X 100.B5 (wrt ground).
Permissible deviation: ± 0.5 V
Preamplifier for DC measurement inputs
Apply the DC voltages listed in the table using the 4-pin Mini-DIN connector at the DC measurement
input.
Measure the DC voltage with a multimeter.
Input
Voltage at
Gnd
APPLIED
VOLTAGE
Measurement at
Rated value
DC MEAS -1 V to +1 V
8
3, 5, 6
- 1 V
X 141.B10
2.33 V
DC MEAS -1 V to +1 V
6
3, 5, 8
+ 1 V
X 141.B11
2.33 V
DC MEAS -10 V to +10 V
8
3, 5, 6
- 10 V
X 141.D10
2.33 V
DC MEAS -10 V to +10 V
6
3, 5, 8
+ 10 V
X 141.D11
2.33 V
Pin assignment DC MEAS connector
If the measured value is more than 10% above or more than 10% below the stated nominal value, the
motherboard must be replaced.
Summary of Contents for ZVB 14
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Page 58: ...Table of Contents Alignment R S ZVB 1145 1078 82 I 2 2 E 4 ...
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Page 154: ...Table of Contents Software Update Installation of Options R S ZVB 1145 1078 82 I 4 2 E 4 ...
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Page 160: ...1145 1078 82 5 2 E 4 Spare Parts List Mechanical Drawings ...
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