Name
Date
Designation
Prepared
JF 05.07.13
Service Manual BB 150
Index
Name
Date
Document No.
Page
File
50078923_04_CN
50 079 823
21/ 21
4.7
ERROR EXAMINATION AND REGULATING CIRCUIT SCHEMATICS
4.7.1 GENERAL ERRORS:
General errors are those that cannot be assigned to a specific regulating circuit.
Error
code
Test
equipment /
Test at the unit
Inspections and tests
Possible corrective actions
≡≡≡
•
Bus cable and
display PCB
both in working
order.
Switch the unit off.
Disconnect the bus
cable to the display PCB
at the main board.
Attach the test set
(cable/display PCB).
Switch the unit on.
Perform the functional
test.
Test set operational:
•
Repeat the functional test of
the individual installed
components. Replace the
cable or display PCB.
Test set not operational:
•
Replace the main board.
44
Switch unit off then on.
Check if error reoccurs.
Replace the measuring cell.
42
Replace the main board.
43
Switch the unit off, then
on. Check if the error
reoccurs.
Replace the main board.
54
Check the error list.
If the error reoccurs, inform
the factory (Q)
