Radical-7 Signal Extraction Pulse CO-Oximeter Service Manual
6-2
Tools required are as follows:
Phillips head screwdriver
Multimeter
10mm wrench or small pliers
6.3.2
The troubleshooting steps below are presented in order of
the most probable cause first. Proceed to the next step only
if unit continues to fail.
6.3.3
Always note the software versions of all three boards prior to
repair.
6.3.4
All units must have Performance Verification in Section 5
performed after repairs have been affected.
6.3.5
All Docking Stations that have been opened must be safety
tested after reassembly.
6.3.6
Service Messages
6.3.6.1 R2.0.x.x – When a fault is detected, the unit either
watchdogs or displays “Service Required XXX” (where
“XXX” indicates one of the symptoms below), and
generates high priority alarm sound. In either case the
fault is latched until power is cycled or the alarm silence
key is pressed.
6.3.6.2 R2.1.x.x – When a fault is detected, the unit either
watchdogs or displays “XXX” and generates high priority
alarm sound. When the fault triggers watchdog alarm, it
is latched until the power is cycled or the alarm silence
key is pressed. But when the unit displays “XXX”, it also
resets itself to clear the fault. If the fault is one-time
event, software clears the fault and continues to operate
normally. If the fault is permanent, the Radical-7 will
display “XXX”, reset, display “XXX”, reset…
Symptom
Cause and Corrective Action
Steps
•
001
•
SRAM Memory Failure
1. Replace Portable System Board
•
002
•
Flash Memory Failure
1. Replace Portable System Board
•
003
•
Low Speed Bus Timeout
1. Replace Portable System Board
•
004
•
Display or Low Speed Bus
Failure
1. Replace Portable System Board
