Advanced Instruments 4250 User Manual

The Advanced
®
Model 3250/4250 Service Manual
57
9. "Check Calibration"
(3250 only)
10. “Cooling System
Error”
11. “Count Error;
Parameter RAM”
12. Display blank or has
blinking cursor
13. Display flashing or
scrolling rapidly
14. EPROM Failure
15. "Error Reading
Barcode”
16. ESC TRAP
17. “Event Record Lost”
18. “Fan System Failure”
Buzz point setting has been changed.
The cooling assembly may not be func-
tioning properly.
A memory check error occurred in the
RAM.
Display has experienced a voltage drop
below its reset threshold.
Display is functioning normally, but is
displaying an abnormal message (mes-
sage length exceeds 20 characters).
This indicates a memory error with the
FLASH memory.
The data received from the barcode
reader was not formatted correctly.
Was the barcode over 13 characters
long?
Indicates general operating system code
fault.
The instrument has lost its record from
memory.
The fan is not functioning properly.
1. Spot-check calibration.
2. Recalibrate, if needed.
1. Check the cooling assembly.
2. Make sure there is heat transfer fluid in
the cooling well.
3. Verify control signal using LED D16.
4. Let unit warm up and try Power On
Diagnostics again.
1. Turn the power off and on.
2. If problem persists, replace processor
board.
1. Turn power off and on.
2. If problem persists, replace application
board.
1. Press STOP if in diagnostics.
2. If problem persists, contact Advanced
Instruments for Hot-Line Service.
1. Try restarting the instrument.
2. Replace the processor board.
1. Turn the power off and on.
2. Check barcode scanner settings.
3. If problem persists, replace application
board.
1. Turn the power off and on.
2. Replace the processor board.
1. Turn the power off and on.
2. If problem persists, replace processor
board.
1. Check fan driver/control circuit.
a. Make sure the fan is plugged in.
b. Make sure the fan isn’t blocked.
c. Check the fan driver LED on the appli-
cation board.
d. To check fan, disconnect and connect
to bench-top 12 VDC power supply.
2. Replace the fan or application board.
Symptom Explanation Suggested Action

Advanced Instruments 4250 Specifications

General

Brand	Advanced Instruments
Model	4250
Category	Medical Equipment
Language	English