Roche Diagnostics May 2009
B-52 Service Manual · Version 9.0
4 Components cobas b 221 system
COOX module (cobas b 221<2/4/6> systems only)
4
Loosen the two cable clamp screws on the PolyOX-KX control board.
5
Disconnect the power supply cable (identification: J7) and the two lamp plugs on
the lamp unit (identification: J1, J2) on the board.
6
Open the bayonet closure of the primary light guide and pull it off (see below).
7
Unscrew the screw holding the lamp unit (see above).
8
Release the cable from the flat cable clip.
9
Remove the lamp unit.
Use the reverse order for assembly.
A Cable clamp
Figure B-33 PolyOX-KX control board - cable clamp
A Bayonet closure B Holding screw
Figure B-34 Lamp unit bilirubin
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