Rainbow 100 PSU capacitor list

[Alan Perry]

OK, got back to this ...

Plugged in the Rainbow 100. Flipped the power switch. No LEDs lit.

There is a white circuit breaker on the power supply. When I switch on 
the power, it pops out. I switch off the power, reset the breaker, 
switch on the power and it pops out again.

alan

On 3/1/19 2:32 PM, Warner Losh wrote:
> Since you don't hear the gears grinding in the rx-50, that's a failure 
> fairly early on. The LEDs in the back of the case will tell you 
> something. There's a table for LED codes in the Rainbow manuals 
> somewhere. If NO LEDs are on, that tells you something too (they all 
> light up on application of power).
>
> I've had my rainbow for 30 years, and haven't had to deal with bad 
> caps in the power supply, but I've also gone as long as a decade with 
> the Rainbow in a box...  And now I have 4 of them (2As and 2Bs)....
>
> Warner
>
> On Fri, Mar 1, 2019 at 3:13 PM Alan Perry <aperry at snowmoose.com 
> <mailto:aperry at snowmoose.com>> wrote:
>
>     I will look at that when I get back home after the weekend.
>
>     On Mar 1, 2019, at 2:01 PM, Warner Losh <imp at bsdimp.com
>     <mailto:imp at bsdimp.com>> wrote:
>
>>
>>
>>     On Fri, Mar 1, 2019 at 2:56 PM Alan Perry via cctech
>>     <cctech at classiccmp.org <mailto:cctech at 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 <dkelvey at hotmail.com
>>         <mailto:dkelvey at hotmail.com>> wrote:
>>         >
>>         > Maybe I need a little clearification.
>>         > When you turn the switches off, it boots?
>>         > Dwight
>>         >
>>         >
>>         > From: cctech <cctech-bounces at classiccmp.org
>>         <mailto:cctech-bounces at classiccmp.org>> on behalf of Alan
>>         Perry via cctech <cctech at classiccmp.org
>>         <mailto:cctech at 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.dicks at gmail.com <mailto:ethan.dicks at gmail.com>> wrote:
>>         > >
>>         > > On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
>>         > > <cctech at classiccmp.org <mailto:cctech at 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
>>         >
>>