Spacelabs qube 91390, Service Manual, Page: 111 / 160

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Q U B E
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R O U B L E S H O O T I N G
3 Choose p-print boot parameters from the Boot Menu . Compare
the result with Figure 5-6 on page 5-8.
a
If the boot parameters are incorrect, select z-zero NV ram
from the Boot Menu to reset the boot parameters to their
factory defaults. For changes to take effect, perform a cold
boot. If the system boots properly, verify all Backend
(Biomed/Clinical Menu) configurations.
b
If zeroing the NVRAM does not restore the defaults, replace
the NVRAM or the CPU PCBA.
c
If the boot parameters are correct, choose a- Run all bootup
diagnostics… from the Main Diagnostic Menu to identify the
source of the failure.
4 If the previous steps do not correct the problem, replace the CPU
PCBA.
High-pitched Tones Heard from the qube Monitor and No
Display is Present
Applicable to units with serial numbers 1390-1xxxxx and higher. The
System Failure Alarm emits a two-frequency high-pitch tone when
one of these four conditions occurred:
• Serial communications between the main CPU and the Always-
On CPU is interrupted.
• The main CPU detected a fault and triggers the safety circuit
itself.
• The Always-On CPU (power supply section) detected a fault and
triggers the safety circuit itself.
• AC-Mains loss, without battery installed, or battery depleted.
Power off the qube monitor to reset the safety circuit. Access the
error log (Refer to
Figure 5-10 on page 5-12) to identify the cause of
the alarm.
1 If the error log indicates that the CPU or Always ON CPU caused
the alarm to trigger, replace the CPU PCBA.
2 If the error log indicates that the battery was depleted, (“Vcom
Failed on Battery”) recharge or replace the battery
V3_3V +/- 6% (3.1 to 3.5 V) Firmware shutdown @ +/- 10% (<3.0 or >3.3)
V3_3AO +/- 6% (3.1 to 3.5 V)
VM12V +/-5% (-13.2 to -10.8 V)
BattATemp Status messages
BattBTemp Status messages
PCBTemp
Warning at 60
°
C, shutdown at 75
°
C
Description Notes