Check out the 14000 errata sheet(PIC14C000 Errata sheet for PIC14C000
Revision A). States that AN1 & AN5 will show up as high if the level shift
network is turned off.

At 04:41 PM 11/13/97 +0000, you wrote:
>Hello.
>
>I'm trying to use all 8 analogue inputs on a 14000. I find that AN1 and
>AN5 just give overflows (the other 6 inputs are OK), unless I switch on
>the level shift networks. Then they work fine, except for having ~0.5 V
>added!
>
>Is there something obvious I've missed?
>
>
>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
>Dr. Simon J. Melhuish
>N.R.A.L., Jodrell Bank.
>http://www.jb.man.ac.uk/~sjm/
>
>
_____________________________________________________________________________
Venkat Rangan
QUALCOMM Incorporated,                                  Phone: (619) 651-0069
6455 Lusk Blvd.                                         Fax:   (619) 651-1997
San Diego, CA 92121                              e-mail: vrangan@qualcomm.com
_____________________________________________________________________________