S1 Service manual
38
Adjustment
Required test Equipment
1
．
Stability power supply
1
．
The supply voltage can be changed between 3.7V and 68V, and the current
is 3A or more.
2
．
The standard voltage is 4.0V
2
．
DC Ammeter
1
．
Class 1 ammeter (17ranges and other features).
2
．
The full scale can be set to either 400mA or 3A.
3
．
A cable of less internal loss must to be used.
3
．
Frequency counter (F. Counter)
1
．
Frequency of 1GHz or so can be measured
。
2
．
The sensitive can be changed to 500MHz or blow, and measurements are
highly stable and accurate. (about 0.2ppm)
。
4
．
Power Meter
1
．
Measurable frequency
：
Up to 500MHz
2
．
Impedance
：
50
Ω
, instability
。
3
．
Measuring range
：
full scare of 5W or so
。
4
．
A standard cable (5D2W 1m) must be used
。
5
．
RF Voltmeter (RF V.M)
1
．
Frequency range
：
up to 500MHz or so.
6
．
Linear Detector
1
．
Frequency range
：
up to 500MHz or so.
2
．
Characteristics are flat, CN is 60dB or more.
7
．
Digital Voltmeter
1
．
Voltage range
：
FS=18V or so.
2
．
Input resistance: 1M
Ω
or more
8
．
Oscillograph
1
．
Measuring range
：
DC to 30MHZ
。
2
．
Provide highly accurate measurements for 5 to 25MHz.
9
．
AF Voltmeter (AF V.M)
1
．
Measuring range
：
50Hz to 1MHz
2
．
Maximum sensitivity
：
1mV or more.
Summary of Contents for S1
Page 34: ...S1 Service manual 34 A Side ...
Page 35: ...S1 Service manual 35 B Side ...
