Siemens MOBILETT Plus HP Service Instructions Manual page 23

Display messages
Dis-
played
messages
Err 22
* See section "Monitoring the kV and mA values"
** Wiring diagram X037E
Tab. 1
Siemens AG
Medical Solutions
Mode of
Cause
operation
Preparation The exposure/
preparation
filament current is
not stable.
SPR8-220.061.03
Rev. 03
Possible reasons and advice
If the exposure filament level is OK, it
should stabilize within 3 s.
•
Check the voltages on D4, +60 V,
+15 V and +5 V (see page 160**).
•
Check the connection between
D4 and the filament transformer
(K60) (see page 160**).
•
Check the trigger pulses in
measurement point "FIL" on D4
(see page 160**).
•
Check the value in "FIL_VAL" on
D1. The value must be stable in the
standby filament. After change-
over to preparation, the value
should stabilize again.
•
See also "P01 - Filament test".
Page 11 of 22
09.03 CS PS 24
2 - 11
MOBILETT Plus HP