Service manual

Ultraview 1030/1050 Monitors — Service Manual
5-20
Battery Fuel Gauge
When the monitor is powered by batteries only, with 1 or 2 batteries installed, a battery fuel gauge
is displayed in the lower right corner of the screen. This gauge is useful in detecting bad batteries
or other voltage problems in the system. If, after 5 minutes of operation on only one fully charged
battery, the battery fuel gauge reads 3/4 full or less, the battery is likely faulty or weak.
Battery Charger Troubleshooting
To verify that a faulty charger exists on the CPU PCBA:
1 Install a known good, fully discharged battery.
2 Power the monitor from the AC power supply and switch the monitor OFF. If the front panel LED
does not blink, replace the CPU PCBA.
3 Let the battery complete a charge cycle: wait for 3 hours.
4 Look at the front panel LED. The front panel LED should be ON and not blinking. If not, replace
the CPU PCBA. (Also, if the LED blinks for more than an hour, the charger is likely faulty).
Recorder Troubleshooting
The optional recorder module (P/N 050-0064-xx) downloads the printer control keys after it signs
onto the SDLC bus. All of the printer control keys are initially inactive (appear dim on the screen).
The PRINTER ON/OFF key becomes active (not dithered) only if the recorder module signs onto
the SDLC bus with both an alive packet and on-line packet. If there is some failure in this process,
the PRINTER ON/OFF key remains inactive. If this key is active and later becomes inactive, then
some failure has deleted the recorder module from the SDLC bus.
At power ON, LED D2 on the recorder CPU PCBA (located under the recorder module) will be ON.
As the recorder executes its diagnostics, the LED will turn ON and OFF with successive tests. If all
diagnostics are passed, the recorder will sign-on to the SDLC link with the LED OFF. If a
diagnostic error occurs, the LED is left ON or flashing.
CONVERT TO
CONTINUOUS
STOP
RECORDING
PRINTER
CONTROLS
SLOW
ON OFF
PRINTER
ON OFF