On Fri, Mar 1, 2019 at 2:56 PM Alan Perry via cctech <cct...@classiccmp.org> wrote:
> Initially it booted and ran for a while until I switched it off. > > The last time it responded to the power switched, components powered up > and the FDD started operating. Then suddenly everything stopped like the > plug had been pulled. > > Now it does nothing (apparent) when it is switched on. > The rainbow has a number of LEDs in the back that it frobs while booting... Do any of them light up? Warner > alan > > > On Mar 1, 2019, at 1:44 PM, dwight <dkel...@hotmail.com> wrote: > > > > Maybe I need a little clearification. > > When you turn the switches off, it boots? > > Dwight > > > > > > From: cctech <cctech-boun...@classiccmp.org> on behalf of Alan Perry > via cctech <cct...@classiccmp.org> > > Sent: Friday, March 1, 2019 1:35 PM > > To: Ethan Dicks > > Cc: General Discussion: On-Topic Posts > > Subject: Re: Rainbow 100 PSU capacitor list > > > > > > > > > On Mar 1, 2019, at 7:52 AM, Ethan Dicks <ethan.di...@gmail.com> wrote: > > > > > > On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech > > > <cct...@classiccmp.org> wrote: > > >> Hi, > > >> > > >> I think that I need to re-cap the power supply in a Rainbow 100. Does > > >> anyone here know if anyone has put together a list of capacitors used > in > > >> the power supply that I can use to order parts? > > > > > > I don't have a list (I just got a pair of Rainbows last month) but > > > given the era of manufacture, I'd be looking for Rifa EMI filter caps > > > by the power inlet. I've had those fail in BA23 cabinets and in a > > > Commodore D9060 hard drive, and a TRS-80 Model 4. > > > > Thanks. When I first got the Rainbow, I asked here about what to look > for before powering it up and was told about Rifa caps and what look/listen > for. > > > > I eventually threw caution to the wind and just powered it up and I ran > it for 15-20 minutes. The PVA in the monitor was really cloudy, so I didn’t > use the system anymore until I removed the PVA over Christmas. I was > testing everything after that and the system was booting up when the power > all switched off like it had been unplugged. > > > > alan > > > > > > > > > > This is totally different than failing/bulging electrolytics. > > > > > > -ethan > > >
