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SECTION 6 TROUBLESHOOTING
LifeCare PCA
6 - 10
Technical Service Manual
625
Battery Icon LED
Battery icon LED current
out of range
Verify icon PWA
connections to MCU PWA
Replace icon PWA
If problem persists,
626
Audible Alarm
On or off voltage
out of range
627
LCD Readback Error
Display data does
not match RAM data
Replace LCD assembly
If problem persists,
628
LED Numeric Display Error
One or more digit segment
current out of range
Verify numeric display PWA
connections to MCU PWA
Replace numeric
display PWA
If problem persists,
629
Clock Time Error
RTC and MCU
out of synchronization
630
Screw Rotation Error
Motor steps and screw
rotations are not in proportion
Replace mechanism
assembly
If problem persists,
631
LCD Timeout Error
LCD does not acknowledge
data within hardware
specific-time
Verify LCD assembly
connections to MCU PWA
Replace LCD assembly
If problem persists,
633
Print Error
Failed UART loopback test
Verify printer operation
For printer set up
instructions, see the
System Operating Manual
If problem persists,
634
ADC Voltage Reference Error
Analog level out of range
635
Stuck Key
Key stuck for more
than two minutes
Replace keypad
If problem persists,
Table 6-2. Error Codes Requiring Technical Service
Alarm
Code
Malfunction Description
Possible Cause
Corrective Action