Roche cobas b 221 system

Roche Diagnostics May 2009
Service Manual · Version 9.0 D-83
cobas b 221 system 7 Troubleshooting
Value flag s
o If the conductivity is not OK, replace mainboard.
e For instructions, see Replacing the Mainboard unit on page B-89.
Flag no. 6030 "COOX HW error"
A hardware error occured at the COOX module.
This flag corresponds to the COOX module stops.
Possible causes and remedy:
e For instructions, see:
Error 20068 "COOX HW error" on page D-43
Error 20069 "COOX HW error" on page D-44
Error 20071 "COOX HW error" on page D-44
Flag no. 6031 "Neon lamp not OK"
The light output of the neon lamp is too low.
Possible causes: o Cuvette contaminated
o Light guide damaged
o Polychromator electronics defective
Remedy: o Perform "Internal cleaning" for the COOX module.
h [System] > [Wash & cleaning] > [Cleaning modules].
o Call up "Polychromator calibration".
o Replace cuvette.
e For instructions, see Replacing the cuvette on page B-59.
o Check/replace cuvette holder.
e For instructions, see Replacing the cuvette holder on page B-58.
o Check primary light guide for damage and if necessary replace it.
e For instructions, see Replacing the primary light guide on page B-56.
o Replace lamp unit bilirubin.
e For instructions, see Replacing the lamp unit bilirubin on page B-51.
o Replace polychromator bilirubin.
e For instructions, see Replacing the Polychromator Bilirubin on page B-54.
Flag no. 6032 "Halogen lamp not OK"
The light output of the halogen lamp is too low.
Possible causes: o Cuvette contaminated
o Light guide damaged
o Polychromator electronics defective
Remedy: o Perform "Internal cleaning" for the COOX module.
h [System] > [Wash & cleaning] > [Cleaning modules].