40 Error messages
MOBILETT XP SPR8-230.840.01.05.02 Siemens AG
11.05 CS SD 24
Page 40 of 72
Medical Solutions
ERR 15 Static short-circuit at the filament inverter
System
mode:
Standby
Explanation: Noise in the filament inverter short-circuit signal (test point
D916, TP SCH) during stand-by.
Action:
• Check test point TP - SCH on D916 (CPU) (high = error, short-circuit is
detected).
• Check D927: Switch off the system, disconnect cable X5 of board D927,
switch the system on again.
¹ If ERR 6 is displayed, D927 and D916 are ready for operation.
¹ If ERR 15 continues to be displayed, check D916 (see ERR 12) or
replace D927.
Possible defects: Cable connection X11 (D927-D916); D916 (CPU); D927.
ERR 22 Short-circuit at the filament inverter
System
mode:
Preparation
Explanation: Short-circuit in the filament inverter during "preparation" (test
point D916, TP SCH).
Action:
• Check test point TP - SCH on D916 (CPU) (high = error, short-circuit is
detected).
• Check D927: Switch off the system, disconnect cable X5 of board D927,
switch the system on again.
¹ If ERR 6 is displayed, D927 and D916 are ready for operation.
¹ If ERR 22 continues to be displayed, check D916 (see ERR 12)
or replace D927.
Possible defects: D916; D927.
ERR 23 Filament current exceeds permissible limit
System
mode:
Preparation
Explanation: D916 (CPU) detects that the filament current exceeds the
permissible limit during "preparation" (test point D916, TP JIM).
Action:
• Check test point TP - JIM on D916 (CPU) (high = error).
• Check the filament current values for the preparation phase. (Possibly
too high or too low). Adjust potentiometer P5 on D916 (CPU).
Possible defects: D916; D907.
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