Siemens SC 7000 Service Manual page 92

Service Manual
3 Power Problems
3.1 Monitor won't power
ON when connected to
external power source
(CPS, IDS, IDS Power
Supply, or PSL)
11
Docking Connector on CPS or IDS
BAT
PSL
F1
External Connector Side
Figure 5-1 Connector I/O PCB
76
Before troubleshooting power problems, keep in mind that fuses are used
to protect delicate circuits from potentially harmful currents. Replacement
of a fuse may provide only a temporary solution and may not remove the
source of the fault. Never replace a fuse with other than what is specified.
1) Is external AC power present?
Yes: Continue.
No:
2) If monitor being powered by a CPS or IDS, depress curved docking
connector cover door on docking station to access docking connector,
and measure output voltage across pins 11 and 12 of connector (see
12
illustration at left), or if monitor being powered by an IDS Power
Supply or PSL, measure output voltage.
3) Is voltage = 11.6 to 13.8 VDC?
Yes: Continue.
No:
EXT
F2
BAT
F3
4) Does Monitor power ON using battery power?
Yes: Then problem is either with main processor PCB or, if
No:
Siemens Medical Systems, EM-PCS, Danvers
NOT A CONTROLLED DOCUMENT
SC 7000 and SC 9000XL Patient Monitors
Troubleshoot line.
Replace CPS/IDS or IDS Power Supply.
C19
C24
C25
C21
C22
C26
C27
C17
C16
C10
INT
X4
powering monitor from PSL, fuse F1 may be open.
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Go to Section 3.4, Troubleshooting ON/OFF control.
F2
F3
F1
C15 J5 J4
J1
C29 C28
J3
J2
Interior Side
ASK-T898-03-7600
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