Roche Diagnostics May 2009
D-26 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
System stops
o Check connector cable between mainboard and interface unit.
e
For details, see Figure Mainboard connectors on page B-90.
o Replace the mainboard unit.
e
For instructions, see Replacing the Mainboard unit on page B-89.
o Replace the interface unit.
e
For instructions, see Replacing the Interface unit on page B-92.
Errors 10118...10119 "Timing error MSS"
An asynchronism occurred between processes and measuring.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
o Check AQC/PolyOX cable for damage and replace if necessary.
o Check connector cable between mainboard and interface unit.
e
For details, see Figure Mainboard connectors on page B-90.
o Replace the mainboard unit.
e
For instructions, see Replacing the Mainboard unit on page B-89.
o Replace the interface unit.
e
For instructions, see Replacing the Interface unit on page B-92.
Errors 10120...10121 "Timing error"
An asynchronism occurred between processes and measuring.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
o Check AQC/PolyOX cable for damage and replace if necessary.
o Check connector cable between mainboard and interface unit.
e
For details, see Figure Mainboard connectors on page B-90.
o Replace the mainboard unit.
e
For instructions, see Replacing the Mainboard unit on page B-89.
o Replace the interface unit.
e
For instructions, see Replacing the Interface unit on page B-92.
Errors 10123...10126 "Comm. error D cal."
A subprogram did not report back.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
o Check AQC/PolyOX cable for damage and replace if necessary.
o Check connector cable between mainboard and interface unit.
e
For details, see Figure Mainboard connectors on page B-90.
o Replace the mainboard unit.
e
For instructions, see Replacing the Mainboard unit on page B-89.
o Replace the interface unit.
e
For instructions, see Replacing the Interface unit on page B-92.
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