Jay,

I'm glad you were able to revive the camera with instructions given
to me by an anonymous friend who deserves most of the credit for
figuring out what was wrong with it and repaired it, and he was
generous enough to let me share the repair technique with the 850
community. My revived camera is being used as a back-up camera to my
FZ30 that I bought, and is still going strong after the repair, even
though its usage went from heavy to light.

--- In Photosmart_850@yahoogroups.com, "Jay" <NWTSPM@...> wrote:
>
> Hello Jan & HPPS850 gang,
>
> Just wanted to share the news with everyone that I was successful in
> fixing the "rainbow issue" that has plagued my 850 for the past 2
> years and caused me to shelve the camera. Many thanks Jan for posting
> the detailed repair instructions in the HP945 forum...
>
> http://www.hp945.com/forum/viewtopic.php?t=1293
>
> Example photos showing the problme can be found in this group's
> Photos sestion under "A Toasted 850".
>
> As promised I did shoot a couple of photos of the disassembly and
> will be sending them to you (Jan) for inclusion in your repair
> thread. Unfortunately I only had my 35mm camera to shoot with. I will
> email some scans when I get them back from processing.
>
> The only thing I wasn't certain about was how long to leave the
> soldering pencil on each leads in order to reflow the solder without
> applying undue heat to the board. I used a 15w pencil and applied it
> to each pin seperately (I think 48 in all) for about 6-7 seconds with
> 3 minutes cool down time between each application.
>
> Best regards,
>
> Jay (with newly resurrected HP PS850!)