Checks And Adjustments - Siemens SIREMOBIL Iso-C Troubleshooting Manual

Replacing boards and components
When doing this, thread the anode wire through the recess in the optics.
The camera optics must lie against the eccentric screws.
Reinstall the O-ring and the cap nut for the anode cable.
The cable length should be 70 mm from the beginning of the white wire to the cap nut.
Reattach the retainer clip for attaching the plug and the cable guide to the I.I.
I.I.
Mount the I.I. back on the C-arm flange. The labels should face the C-arm.
Reinstall the attachment screws in the threaded holes. Turn them at least 5 revolutions.
Holding the I.I. firmly, swivel the C-arm so that the I.I. is above and the SIREPHOS is
below.
Carefully lower the I.I. into the service position.
I.I. mini-voltage supply
Reinstall the high voltage section of the I.I. mini-voltage supply.
Reconnect the control section, however, do not tighten the screws yet.
Route the cables to the high voltage section and the control section and secure them
with cable ties or cable clamps.
VIDEOMED DC
Rotate the Compact optics into the 0° position (slowly!).
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.
Place the VIDEOMED DC in the 0° position on the compact optics and secure it with the
clamp. See also
Miscellaneous parts
Mount the grid to the new I.I. Attach the wires for the cassette contact.
Reroute and reconnect all the cables (protective conductor, cables etc.).

Checks and adjustments

Check the I.I. electrode voltages according to the test protocol for the I.I. and adjust
them.
Check the resolution. If necessary, adjust the optical sharpness on the Compact optics.
When doing this, use the I.Q. Quick test, chapter: Resolution for evaluating the optical
sharpness.
Check the dose rate and, if necessary, adjust it.
Check that the camera optics are centered with respect to the I.I. output and, if neces-
sary, adjust them. See also
output / p. 102)
© Siemens, 2008
For internal use only
(Replacing the VIDEOMED DC / p.
(Checking the camera optics centering at the I.I.
and (Centering the camera optics to the I.I. output / p.
SPR2-230.840.01.01.02
08.08
83).
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