V L F > H F R E C E I V E R S
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R & S E K 8 9 5 / R & S E K 8 9 6
User Manual
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Switching On and Off
3.1.5 Switching On
Actuate switch POWER.
Through receiver switch>on the primary circuit
is closed. The LED POWER is illuminated to indi>
cate that the power supply is working perfectly
(Æ CM display).
After switch>on the RAM contents are auto>
matically checked (Æ initialization). Unper>
mitted settings are overwritten with a default
value. If overwriting with a default value takes
place in a channel, this channel is additionally
inhibited.
In the operating modes CHANNEL, CHANNEL
SCANNING and FIXED CHANNEL call>up of in>
hibited channels is not possible. Via the chan>
nel editing menu, inhibited channels can be re>
activated. In the case that inhibited channels
are called up in the channel editing menu, the
display UNUSED appears.
Following initialization the LCD illumination is
switched on.
In the LED test the function of LEDs FRQ, BFO,
CH and NOTCH / PBT is checked.
In the LCD test all segments are switched on for
approx. 2 s and then switched off again. This
allows a visual check of the LCD.
In the built>in equipment test (BIT) it is first
checked whether the modules synthesizer, HF
unit and IF / AF processor are installed.
Subsequently a 100>kHz test signal is fed into
the receive path instead of the antenna signal,
and the receiver is set to a receive frequency of
100 kHz.
The processor evaluates the BIT messages (BIT
criterion) from the HF unit as well as the CM
messages from the synthesizer and the IF / AF
processor.
As soon as one of the following messages is dis>
played, carry out troubleshooting acc. to 4.2.
f RF UNIT MISSING
f IF / AF MISSING
f SYNTH MISSING
f RF UNIT NOGO
f IF / AF NOGO
f SYNTH NOGO
f PROC UNIT NOGO
f IF CONV NOGO
If the message BIT FAILED appears, actuate key
MENU and switch receiver over to local oper>
ation acc. to 3.1.19.7. Switch receiver off and
on again.
Once the BIT is terminated successfully, the last
receiver setting is reactivated and the main
menu is displayed. In the FIXED CHANNEL
mode the display CHANNEL MODE EXIT is indi>
cated instead of the main menu.
3.1.6 Switching Off
Actuate switch POWER.
6164.0717.02_01
> 3.6 >
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