Siemens MOBILETT Plus Service Instructions Manual page 17

Display messages
Dis-
played
messages
CAL 14
USE 15
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1
Siemens-Elema AB
Solna, Sweden
Mode of
Cause
operation
Generator ON The voltage in the
capacitor bank
exceeds 360 V
During The exposure switch
preparation has been in prepara-
tion position longer
than 20 s***.
***
SPR8-215.898.01
Rev. 05
Possible reason
•
•
•
•
•
Max. preparation time is 10s if FW lower than V1.2 or V1.2E.
Page 7 of 22
01.02 SPS-UD
Check the voltage level in the
capacitor bank, see page 130**.
Measure at measuring points
"CAPPOS" and "CAPNEG" on D7.
Check if LED V12 on D7 is lit, see
page 130**.
Check all supply voltage on D7.
If the voltage is close to 360 V
it can depend on the charger
on D7.
If the transistor in the Buck-
converter is short-circuited,
the current will flow until fuse U8 on
D8 blows.
Replace the D7 charging unit.
The user has kept the exposure
release switch in preparation
position longer than 20 s*** after
the "Ready" light indicator
indicates that preparation is ready
(anode speed is correct).
If the fault returns continuously,
check the exposure release
handle, see page 140**.
MOBILETT Plus / - E/ - M
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