Siemens MOBILETT XP Troubleshooting Manual page 28

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