Previous:  Observing with IPCS only or with CCD and IPCS
 Up:  Observing with IPCS only or with CCD and IPCS
 Next:  Switching on the IPCS EHT voltage
 Previous Page:  Observing with IPCS only or with CCD and IPCS
 Next Page:  Switching on the IPCS EHT voltage
 
The TV focus must be set as described in Section 9.1.1, with the added proviso that this must be done with the IPCS EHT supply off, as no lights are permitted in the dome with the EHT on.