SC 7000 and SC 9000XL Patient Monitors Service Manual
ASK-T898-03-7600 Siemens Medical Systems, EM-PCS Danvers 81
7k9kXLSM.c5.CD_ROM.fm/04-99/kaupp
NOT A CONTROLLED DOCUMENT
4 Monitor Resets
During startup and also during normal monitor operations, diagnostic
programs running in the background environment provide a constant
monitoring of critical hardware components and software functions.
In the event a critical component or software function is determined by the
software to be malfunctioning or there is no response to a requested task,
the diagnostics may force a full or partial main processor reset. Such events
can be identified by either a temporary loss of display or by a highly audible
watchdog alert tone. Monitor resets are typically recorded in the diagnostic
error log, which can be retrieved for interpretation and diagnosis by factory
trained experts.
Should a monitor exhibit symptoms of a reset, compare contents of the
diagnostic error log with the list of Error Messages and Diagnostic Codes
in Appendix C, for possible remedial action. Otherwise, record the
information on a copy of the “Problem Report” on page 91 at the end of this
Chapter, and forward it along with the diagnostic error log to your respective
TSS center.
5 Power On/Off Piezo Tone Fails to Sound.
6 Rotary Knob Malfunction.
7 Fixed Key Fails to Function.
Table 5-3 Power-off Alarm Malfunction
Symptom(s) Possible Cause(s) Troubleshooting and Remedial Action
Piezo tone fails to
sound when monitor
powered ON or OFF,
or loses power.
Main Processor PCB
malfunction
1. Replace Main Processor PCB Subassembly.
2. If problem persists, contact TSS in Solna or Danvers.
Table 5-4 Rotary Knob Malfunction
Symptom(s) Possible Cause(s) Troubleshooting and Remedial Action
Rotary knob fails to
properly select fields,
or pressing the knob in
fails to activate a menu
or select a default.
Optical Encoder
malfunction
Front Bezel PC Board
malfunction
Main Processor PCB
malfunction
1. Replace Optical Encoder.
2. Replace Front Bezel PC Board.
3. If problem persists, replace Main Processor PCB
Subassembly.
4. If problem persists, contact TSS in Solna or Danvers.
Table 5-5 Fixed Key Malfunction
Symptom(s) Possible Cause(s) Troubleshooting and Remedial Action
A Fixed Key fails to
initiate change
Front Bezel Membrane
Switch or PC Board
malfunction
Main Processor PCB
malfunction
1. Replace Front Bezel/Lens Subassembly.
2. If problem persists, replace Front Bezel PC Board.
3. If problem persists, replace Main Processor PCB
Subassembly.
4. If problem persists, contact TSS in Solna or Danvers.
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