Siemens SIREMOBIL Iso-C

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08.08 CS PS SP

Replacing boards and components 97

Page 97 of 148

For internal use only

x When doing this, thread the anode wire through the recess in the optics.

x The camera optics must lie against the eccentric screws.

x Reinstall the O-ring and the cap nut for the anode cable.

x The cable length should be 70 mm from the beginning of the white wire to the cap nut.

x Reattach the retainer clip for attaching the plug and the cable guide to the I.I.

I.I.

x Mount the I.I. back on the C-arm flange. The labels should face the C-arm.

x Reinstall the attachment screws in the threaded holes. Turn them at least 5 revolutions.

x Holding the I.I. firmly, swivel the C-arm so that the I.I. is above and the SIREPHOS is

below.

x Carefully lower the I.I. into the service position.

I.I. mini-voltage supply

x Reinstall the high voltage section of the I.I. mini-voltage supply.

x Reconnect the control section, however, do not tighten the screws yet.

x Route the cables to the high voltage section and the control section and secure them

with cable ties or cable clamps.

VIDEOMED DC

x Rotate the Compact optics into the 0° position (slowly!).

x Connect an ohmmeter to the potentiometer for camera rotation, point 2 and 3. At 0° ,

there should be a resistance value of 5000 ohms, ±40 ohms.

x Place the VIDEOMED DC in the 0° position on the compact optics and secure it with the

clamp. See also (Replacing the VIDEOMED DC / p. 83).

Miscellaneous parts

x Mount the grid to the new I.I. Attach the wires for the cassette contact.

x Reroute and reconnect all the cables (protective conductor, cables etc.).

Checks and adjustments 0

x Check the I.I. electrode voltages according to the test protocol for the I.I. and adjust

them.

x Check the resolution. If necessary, adjust the optical sharpness on the Compact optics.

x When doing this, use the I.Q. Quick test, chapter: Resolution for evaluating the optical

sharpness.

x Check the dose rate and, if necessary, adjust it.

x Check that the camera optics are centered with respect to the I.I. output and, if neces-

sary, adjust them. See also (Checking the camera optics centering at the I.I.

output / p. 102) and (Centering the camera optics to the I.I. output / p. 103).

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