Roche cobas b 221 system

Roche Diagnostics May 2009
D-14 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
System stops
Error 10005 "Comm. error PC-µC"
Communications between PC and microcontroller is interrupted.
o Turn the instrument off and on again.
o After replacing the Screen/PC-unit or the hard disk, assign the valid instrument
type and load the default settings.
e For instructions, see Instrument type on page B-6.
Error 10006 "Download error"
The download process to the microcontroller failed.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
o Reinstall software.
o Replace the mainboard unit.
e For instructions, see Replacing the Mainboard unit on page B-89.
o Check AQC/PolyOX cable for damage and replace if necessary.
Error 10008 "No waste container"
Waste container is missing.
o Insert container.
Error 10009 "Current overload actor bus"
A component on the actor bus has a short circuit.
o Call up general hardware test.
If the general hardware tests interrupts at beginning:
o Replace power supply.
e For instructions, see step 2 of Removing the rear panel on page B-20.
o Visually check the actuator bus HS cable and all cable plugs.
o At the ready screen, press h [System] > [Component test] > [Aggregates] or
[Valves].
o Perform component tests for the following modules:
O vacuum pump
O peristaltic pumps
O T&D module
O hemolyzer
O valves V13, V18, V19, VM
If the system stop occurs when testing a specific module, replace the module.