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Change the primary connections of the transformer in accordance with the indication on the p.c. board
near the transformer.
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Change the mains voltage plate on the rear of the instrument in accordance with the mains voltage selected.
Close the instrument.
Fuse replacement
Ensure that only fuses with the required rated current and of the specified type are used for replacement. The
use of repaired fuses must be avoided. The instrument must be disconnected from all voltage sources when a
fuse is to be replaced.
Internal mains adjustment and fuse replacement must only be undertaken by a skilled person who is aware of
the hazards involved.
2.1.5.
Controls and sockets
Front panel (see Fig. 3)
Textplate indication
oON
POWER
o OFF
JLOUT
TTL
OUTPUT
Z
0
600
Q
AMPLITUDE
~
LOW DISTORTION
--.t
FAST SETTLING
WAVEFORM
rv
rLJ
ATTEN
20 dB
FREQUENCY Hz
X
1 0
X
1 00
X
1 k
X
1 0 k
0
Rear panel (see Fig. 4)
Rear panel indication
230 V/50 Hz
2.2.
OPERATION
2.2.1.
Switching on the instrument
Function
Mains switch; white spot for ON-position
TTL-pulse output
Signal output
Amplitude control, combined with pull switch to decrease the settling
time
Waveform selector
Step attenuator
Frequency range selector
Frequency control
Function
Mains input socket
After the generator has been connected to the mains in accordance with sections 2.1.3 and 2.1.4, it may be
switched on by depressing the mains switch POWER.
The white spot inside the POWER switch indicates mechanically that the instrument is switched on.
After a warming-up period of 30 minutes the instrument is ready for use.
2.2.2.
Selecting the waveform
The output signal mode can be selected by operating the relevant pushbutton (rvor f'1..J) of the WAVEFORM
selector.
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