Advanced Instruments 4D3 - Page 56

The Advanced
®
3D3/4D3 Service Manual
56
9. “Cooling System
Error”
10. “Count Error;
Parameter RAM”
11. "Error Reading
Barcode”
12. “Event Record Lost”
13. “Fan Driver Failure”
“Fan System Failure”
14. “Flash Boot Program”
15. “Head Not Up”
“Head Not Down”
16. “New Software
Version”
17. “No Parameters in
RAM”
“Parameter RAM
Failed”
The cooling assembly may not be func-
tioning properly.
A memory check error occurred in the
RAM.
The data received from the barcode
reader was not formatted correctly.
The instrument has lost its record from
memory.
The fan is not functioning properly.
The instrument is configured to receive
Flash EPROM updated code.
The head up/down mechanism may not
be functioning properly.
EPROM has been changed, or new soft-
ware has been downloaded.
The battery-backed RAM has lost its
data or has been cleared.
The instrument has lost the calibration,
data, and probe bin numbers from mem-
ory.
1. Check the cooling assembly.
2. Make sure there is heat transfer fluid in
the cooling well.
1. Turn the power off and on.
2. If problem persists, replace 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. If problem persists, replace processor
board.
1. Check fan driver/control circuit.
2. Replace the fan or application board.
1. If intentional, perform download process
as described in this manual.
2. If not intentional, turn off power and set
three-position Operator/Supervisor key-
switch to Operator or Supervisor position.
3. Check processor board option switch
SW1 position 3 and set to OPEN/OFF/0
(see Option Switch Setup Table).
1. Check the motor, clutch assembly and
relays by running the head up/down test.
2. Check the Head Up or Head Down posi-
tion sensor.
3. Check LED indicators on application
board.
For Hitachi systems:
1. Reset the sample and block bin numbers.
2. Reset the stir amplitude.
3. Recalibrate the instrument.
4. Reset plateau mode/range.
5. Reset instrument serial number.
6. If problem persists, replace processor
board.
1. Reset sample and block probe bin num-
bers. Recalibrate the instrument.
2. Reset the stir amplitude.
3. Reset the buzz point (3D3 only).
4. Reset plateau mode/range.
5. Reset instrument serial number.
6. If problem persists, replace processor
board.
Symptom Explanation Suggested Action