Siemens MOBILETT XP - Page 28

28 Test Points, Fuses and LEDs
MOBILETT XP SPR8-230.840.01.05.02 Siemens AG
11.05 CS SD 24
Page 28 of 72
Medical Solutions
Test points D916 (CPU)
SP Name Function / information Test ratio
1 GND 0V signal (ground) n.a.
2 GND 0V signal (ground) n.a.
3 KVN kV actual, negative 1 V ^ 10 kV
4 KVP kV actual, positive 1 V ^ 10 kV
5 KV kV actual, total 1 V ^ 30 kV
6 JR mA actual, tube current (mA) 1 V ^ 100 mA
7 I Primary resonant filament current (can be mea-
sured only with the oscilloscope)
1 V ^ 1 A
8 IH Actual effective filament current 1 V ^ 2 A
9 SWT Main inverter control circuit (high = kV actual >
70%)
n.a.
10 F1 mAs integration 100mA ^ 16 kHz
11 TEMP Single tank temperature (analog/neg. coefficient) > 2 V = > 60°C
12 VR +5 V - DC, U1 ± 0,01
13 VC Capacitor bank voltage 1 V ^ 100 V
14 SCM Main inverter short-circuit (high = error, e.g.: ERR
22)
n.a.
15 SCH Filament inverter short-circuit (high = error, e.g.:
ERR 36)
n.a.
16 JIM Overcurrent error (filament or tube current), (high
= error, e.g.: ERR 23/ERR 42)
n.a.
17 KVM Overvoltage error (+/- kV), (high = error, e.g.:
ERR 31)
n.a.
18 KVC Main inverter resonant current 1 V ^ 50 A
19 VSA Not used n.a.
20 KVS kV nominal (kV) 1 V ^ 30 kV
21 JRS Nominal tube current (mA) 1 V ^ 100 mA
22 IHS Nominal effective filament current 1 V ^ 2 A
23 I1 Motor current (stator winding 1) 1 V ^ 4 A
24 I2 Motor current (stator winding 2) 1 V ^ 4 A
25 FC1 Filament inverter (kHz) n.a.
26 FC2 Main inverter (kHz) n.a.