Welch Allyn Propaq LT 802LT0N, Service Manual

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11
Troubleshooting and repair
Troubleshooting chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Battery use and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Service chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Service menus for repair and network troubleshooting . . . . . . . . . . . . . . . . . . . .21
Troubleshooting chart
General
Refer to “Service chart” on page 19 for information on the suggested corrective actions.
Caution Replace parts, components, or accessories only with parts supplied or
approved by Welch Allyn. The use of any other parts can lead to inferior monitor
performance and will void the product warranty.
Symptom Possible cause Possible corrective action
The power-on self-test fails.
(Indicator: 2 yellow LED flashes
followed by an LED flash of any
combination of green, yellow, and
red). Internal RAM failure. Cycle the power. If the error persists, send the
monitor to an authorized Welch Allyn Service
Center for service. (See
“Returning products”
on page 6.)
Software error.
Unexpected reset detected.
“Recoverable Fault.
Restart monitor.“ An invalid condition has been
detected that might be resolved
by restarting the monitor. Restart the monitor. If the fault does not
reappear, continue to use the monitor.
“System Fault.
Service monitor.“ An unrecoverable system error
has occurred. Send the monitor to an authorized Welch Allyn
Service Center for service. (See
“Returning
products” on page 6.)
“System Fault.
Service radio.“ Radio fault detected. Send the monitor to an authorized Welch Allyn
Service Center for service. (See
“Returning
products” on page 6.)
“Battery Fault.
Install new battery.“ The battery is not performing to
specification. Install a new battery. “Removing the lithium
ion battery assembly” on page 29.
Charging has timed out (Charger
state 5). Remove the monitor from the cradle and
reinsert it, and then attempt again to charge
the battery. If the timeout reoccurs, replace the
battery.
“Removing the lithium ion battery
assembly” on page 29.
“Equipment Alert.
Charger Fault.
Service Charger.“ Cradle power board failure. Insert another monitor and battery pack in the
cradle and verify that the symptoms persist. If
yes, then replace the cradle power board.
“Disassembling the cradle” on page 47.