V L F > H F R E C E I V E R S
f
R & S E K 8 9 5 / R & S E K 8 9 6
User Manual
f
Fault Recognition Through Switch>on
4.2.2 Troubleshooting with Control Unit 2 ∫LOCAL∫ (R&S EK 895, = Option
'Control Unit R&S GB!890') or Control Unit (R&S EK 895)
4.2.2.1 Fault Recognition Through Switch>on
By switching on the VLF>HF receiver the pri>
mary circuit is closed. The LED POWER is illu>
minated, if the power supply module works
perfectly (Æ CM display).
Æ LED POWER is illuminated.
If the LED is not illuminated,
f but otherwise the receiver operates im>
peccably, send the control unit for repair as
soon as possible (Æ LED defective).
f check fuse and replace, if necessary. For
this purpose undo fuse holder.
f check cabling on interface X67. If ne>
cessary, close open connection or replace
mains cable.
f replace power supply module acc. to 4.3.8.
Upon switching on the receiver, the entire
RAM contents are automatically checked (Æ
initialization). Unpermitted settings are re>
placed by a default value. If overwriting with a
default value takes place in a channel, this
channel is additionally inhibited.
Inhibited channels cannot be called up in the
operating modes CHANNEL, CHANNEL SCAN>
NING and FIXED CHANNEL. Via the channel
manipulation menu, reactivation of inhibited
channels is possible. In case inhibited channels
are called up via the channel manipulation
menu, the display UNUSED appears.
POWER
Fuse:
100 / 120 V: IEC 127 > T1.25/250 V
220 / 240 V: IEC 127 > T630/250 V
6164.0717.02_01
> 4.4 >
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