27 Feb
2019
27 Feb
'19
10:22 a.m.
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?
alan
1 Mar
1 Mar
7:52 a.m.
On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
<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.
This is totally different than failing/bulging electrolytics.
-ethan
1:35 p.m.
On Mar 1, 2019, at 7:52 AM, Ethan Dicks
<ethan.dicks at gmail.com> wrote:
On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
<cctech at classiccmp.org> wrote:
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
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.
This is totally different than failing/bulging electrolytics.
-ethan
1:44 p.m.
Maybe I need a little clearification.
When you turn the switches off, it boots?
Dwight
________________________________
From: cctech <cctech-bounces at classiccmp.org> on behalf of Alan Perry via cctech
<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> wrote:
On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
<cctech at classiccmp.org> wrote:
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
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.
This is totally different than failing/bulging electrolytics.
-ethan
1:56 p.m.
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.
alan
On Mar 1, 2019, at 1:44 PM, dwight <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> on behalf of Alan Perry via cctech
<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> wrote:
On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
<cctech at classiccmp.org> wrote:
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
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.
This is totally different than failing/bulging electrolytics.
-ethan
2:01 p.m.
On Fri, Mar 1, 2019 at 2:56 PM Alan Perry via cctech <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
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.
On Mar 1, 2019, at 1:44 PM, dwight <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> on behalf of Alan Perry
via
cctech <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> wrote:
>
> On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
> <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.
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
2:13 p.m.
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> wrote:
On Fri, Mar 1, 2019 at 2:56 PM Alan Perry via
cctech <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> wrote:
> >
> > Maybe I need a little clearification.
> > When you turn the switches off, it boots?
> > Dwight
> >
> >
> > From: cctech <cctech-bounces at classiccmp.org> on behalf of Alan Perry
via cctech <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>
wrote:
> > >
> > > On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
> > > <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
> >
2:32 p.m.
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> 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> wrote:
On Fri, Mar 1, 2019 at 2:56 PM Alan Perry via cctech <
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
for before
powering it up and was told about Rifa caps and what look/listen
for.
On Mar 1, 2019, at 1:44 PM, dwight <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> on behalf of Alan Perry
via
cctech <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>
wrote:
>
> On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
> <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
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
5 Mar
5 Mar
2:56 p.m.
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
> >
>
3:43 p.m.
If you disconnect the power supply from the motherboard, disks, etc, does
it still pop? If so -> bad power supply. If not, reconnect one at a time
and see if it is load based (eg each of them connected alone causes it). If
it is purely load based, then it's a bad ps). If there's one thing that
causes it to pop, there's an issue there. If it is the mobo, you might also
try w/o the VR201 connected, since if that's pulling too much power, it can
cause a PS overload (though I've never had this issue, I've read about it
years ago).
Warner
On Tue, Mar 5, 2019 at 2:56 PM Alan Perry <aperry at snowmoose.com> wrote:
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> 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> wrote:
On Fri, Mar 1, 2019 at 2:56 PM Alan Perry via cctech <
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> wrote:
Maybe I need a little clearification.
When you turn the switches off, it boots?
Dwight
From: cctech <cctech-bounces at classiccmp.org> on behalf of Alan Perry
via
cctech <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>
wrote:
>
> On Wed, Feb 27, 2019 at 1:21 PM Alan Perry via cctech
> <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
3:50 p.m.
Yes, with the power supply disconnected from the mobo, it pops.
alan
On 3/5/19 3:43 PM, Warner Losh wrote:
If you disconnect the power supply from the
motherboard, disks, etc,
does it still pop? If so -> bad power supply. If not, reconnect one at
a time and see if it is load based (eg each of them connected alone
causes it). If it is purely load based, then it's a bad ps). If
there's one thing that causes it to pop, there's an issue there. If it
is the mobo, you might also try w/o the VR201 connected, since if
that's pulling too much power, it can cause a PS overload (though I've
never had this issue, I've read about it years ago).
Warner
On Tue, Mar 5, 2019 at 2:56 PM Alan Perry <aperry at snowmoose.com
<mailto:aperry at snowmoose.com>> wrote:
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
> >
>
4:02 p.m.
The circuit breaker is there to reduce the chances that a problem turns
into a disaster.
Although it IS possible to have a defective circuit breaker that is "false
tripping", or thinking that it has an overload at normal amperages, that
is unlikely.
I'm afraid that it is time to start by checking for shorts to ground,
etc., without continuing to let it happen. Starting with whatever the
circuit breaker is trying to protect.
On Tue, 5 Mar 2019, Alan Perry via cctech wrote:
Yes, with the power supply disconnected from the mobo,
it pops.
alan
On 3/5/19 3:43 PM, Warner Losh wrote:
> If you disconnect the power supply from the motherboard, disks, etc, does
> it still pop? If so -> bad power supply. If not, reconnect one at a time
> and see if it is load based (eg each of them connected alone causes it).
> If it is purely load based, then it's a bad ps). If there's one thing that
> causes it to pop, there's an issue there. If it is the mobo, you might
> also try w/o the VR201 connected, since if that's pulling too much power,
> it can cause a PS overload (though I've never had this issue, I've read
> about it years ago).
>
> Warner
>
> On Tue, Mar 5, 2019 at 2:56 PM Alan Perry <aperry at snowmoose.com
> <mailto:aperry at snowmoose.com>> wrote:
>
> 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
4:16 p.m.
For a little background, I had run the system for about 15 minutes, then
it sat for a couple months while I removed the PVA from the display,
then, when I tried to run the system again, the system started to boot
and then the circuit breaker popped.
On 3/5/19 4:02 PM, Fred Cisin via cctech wrote:
The circuit breaker is there to reduce the chances
that a problem
turns into a disaster.
Although it IS possible to have a defective circuit breaker that is
"false tripping", or thinking that it has an overload at normal
amperages, that is unlikely.
I'm afraid that it is time to start by checking for shorts to ground,
etc., without continuing to let it happen.? Starting with whatever the
circuit breaker is trying to protect.
On Tue, 5 Mar 2019, Alan Perry via cctech wrote:
Yes, with the power supply disconnected from the
mobo, it pops.
alan
On 3/5/19 3:43 PM, Warner Losh wrote:
> If you disconnect the power supply from the motherboard, disks, etc,
> does it still pop? If so -> bad power supply. If not, reconnect one
> at a time and see if it is load based (eg each of them connected
> alone causes it). If it is purely load based, then it's a bad ps).
> If there's one thing that causes it to pop, there's an issue there.
> If it is the mobo, you might also try w/o the VR201 connected, since
> if that's pulling too much power, it can cause a PS overload (though
> I've never had this issue, I've read about it years ago).
>
> Warner
>
> On Tue, Mar 5, 2019 at 2:56 PM Alan Perry <aperry at snowmoose.com
> <mailto:aperry at snowmoose.com>> wrote:
>
> ??? 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
9:06 p.m.
On Wed, Mar 6, 2019 at 12:16 AM Alan Perry via cctech
<cctech at classiccmp.org> wrote:
For a little background, I had run the system for about 15 minutes, then
it sat for a couple months while I removed the PVA from the display,
then, when I tried to run the system again, the system started to boot
and then the circuit breaker popped.
This is a switch mode power supply with all the failure modes that that
implies :-)
I'd start by checking the mains bridge rectifier (actually used as a pair
of diodes in a voltage doubler circuit on 110V mains), the mains
smoothing capacitors (820uF?) and the BUV47 chopper transistor. If
the last is short-circut then it's very possible it was damaged by a
fault elsewhere in the PSU.
-tony
6 Mar
6 Mar
4:35 p.m.
There was a lot of related discussion to this, but my question was never
answered. Now I seem to have found the answer myself.
According to a post on VCF Forums, here is the list:
2x 3200uF @ 16V
1x 2200uF @ 35V
2x 820uF @ 250V
1x 560uF @ 20V
1x 330uF @ 20V
3x 47uF @ 16V
1x 10uF @ 35V
1x 2uF @ 25V
I went ahead and ordered a (claimed) working PSU. Hope it actually works.
alan
On 2/27/19 10:22 AM, Alan Perry via cctech 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?
alan
5:15 p.m.
On Wed, Mar 6, 2019 at 4:36 PM Alan Perry via cctech <cctech at classiccmp.org>
wrote:
There was a lot of related discussion to this, but my
question was never
answered. Now I seem to have found the answer myself.
According to a post on VCF Forums, here is the list:
2x 3200uF @ 16V
1x 2200uF @ 35V
2x 820uF @ 250V
1x 560uF @ 20V
1x 330uF @ 20V
3x 47uF @ 16V
1x 10uF @ 35V
1x 2uF @ 25V
I went ahead and ordered a (claimed) working PSU. Hope it actually works
Cool. Has anybody tried to run an AT or ATX power supply with an adapter
for the Rainbow?
Warner
alan
On 2/27/19 10:22 AM, Alan Perry via cctech 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?
alan
9:11 p.m.
On 3/6/19 5:15 PM, Warner Losh wrote:
On Wed, Mar 6, 2019 at 4:36 PM Alan Perry via cctech
<cctech at classiccmp.org <mailto:cctech at classiccmp.org>> wrote:
There was a lot of related discussion to this, but my question was
never
answered. Now I seem to have found the answer myself.
According to a post on VCF Forums, here is the list:
2x 3200uF @ 16V
1x 2200uF @ 35V
2x 820uF @ 250V
1x 560uF @ 20V
1x 330uF @ 20V
3x 47uF @ 16V
1x 10uF @ 35V
1x 2uF @ 25V
I went ahead and ordered a (claimed) working PSU. Hope it actually
works
Cool. Has anybody tried to run an AT or ATX power supply with an
adapter for the Rainbow?
Do you have pinouts for the connectors on the power supply?
alan
Warner
alan
On 2/27/19 10:22 AM, Alan Perry via cctech 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?
alan
10:21 p.m.
On Wed, Mar 6, 2019 at 9:11 PM Alan Perry <aperry at snowmoose.com> wrote:
On 3/6/19 5:15 PM, Warner Losh wrote:
On Wed, Mar 6, 2019 at 4:36 PM Alan Perry via cctech <
cctech at classiccmp.org> wrote:
The Rainbow 100 Technical Manual (page 3-30) has the following table:
Table 3-11 Power Supply Connector (J8) Signals
Pin Signal Mnemonic Description
1 AC Voltage Okay ACOKH This signal indicates the presence or absence of
valid ac power entering the power supply. When valid ac power is present,
this signal will be high. When the ac power is lower than the required
minimum input voltage, this signal will be low.
2 Voltage Bias VBIAS This signal is connected to the communications control
register via a jumper on the system module. The jumper is installed only
for manufacturing testing.
3 None This pin is missing to provide a key for the cable connector.
4 -12 V -12 V input
5,6 +12 V + 12 V input
7,8,9 +5 V +5 V input
10, II, 12, 13 Ground GND DC power return and signal ground
Page 1-10 gives the following regulated values:
+5.1 V ?6% over the current range of 2.5 A to 11.5A
+12.1 V ?6% over the current range of 0.6 A to 6.7A
-12 V ? 7% over the current range of 0.0 A to 0.15 A
~130W power draw max.
Warner
Warner
There was a lot of related discussion to this,
but my question was never
answered. Now I seem to have found the answer myself.
According to a post on VCF Forums, here is the list:
2x 3200uF @ 16V
1x 2200uF @ 35V
2x 820uF @ 250V
1x 560uF @ 20V
1x 330uF @ 20V
3x 47uF @ 16V
1x 10uF @ 35V
1x 2uF @ 25V
I went ahead and ordered a (claimed) working PSU. Hope it actually works
Cool. Has anybody tried to run an AT or ATX power supply with an adapter
for the Rainbow?
Do you have pinouts for the connectors on the power supply?
alan
On 2/27/19 10:22 AM, Alan Perry via cctech 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?
alan
12 Mar
12 Mar
12:08 a.m.
New subject: The continuing story of a Rainbow 100 (Was: Rainbow 100 PSU capacitor list)
As noted in the subject, continuing the story of the Rainbow 100 that I
rescued last year.
The replacement PSU arrived today and I installed it. It came up to the
Main System Menu, but I had forgot to plug the RX50 cable into the
controller board and the RX50 power cable. Though it prompted to press a
key, it did not respond when a key was pressed.
I powered down and plugged that stuff in. When I powered it back up, the
display showed a keyboard error and did not display the Main System Menu
as before. All of the keyboard LEDs lit, then the last one started
blicking accompanied by a pattern of beeps. I should have checked the
LEDs on the system unit, but I only did it when the "Main Board
interrupt off" message was displayed and it corresponded to Message
Number 2. If I disconnect the keyboard, the system just displays a
message about the keyboard.
I was going to take a more systematic approach to diagnosing the issue
tomorrow. Since the system "just" worked last time I powered it up, I
wasn't expecting things not to work ...
Any suggestions on what to look at?
alan
On 3/6/19 10:21 PM, Warner Losh wrote:
On Wed, Mar 6, 2019 at 9:11 PM Alan Perry <aperry at snowmoose.com
<mailto:aperry at snowmoose.com>> wrote:
On 3/6/19 5:15 PM, Warner Losh wrote:
On Wed, Mar 6, 2019 at 4:36 PM Alan Perry via cctech
<cctech at classiccmp.org <mailto:cctech at classiccmp.org>> wrote:
There was a lot of related discussion to this, but my
question was never
answered. Now I seem to have found the answer myself.
According to a post on VCF Forums, here is the list:
2x 3200uF @ 16V
1x 2200uF @ 35V
2x 820uF @ 250V
1x 560uF @ 20V
1x 330uF @ 20V
3x 47uF @ 16V
1x 10uF @ 35V
1x 2uF @ 25V
I went ahead and ordered a (claimed) working PSU. Hope it
actually works
Cool. Has anybody tried to run an AT or ATX power supply with an
adapter for the Rainbow?
Do you have pinouts for the connectors on the power supply?
The Rainbow 100 Technical Manual (page 3-30) has the following table:
Table 3-11 Power Supply Connector (J8) Signals
Pin Signal Mnemonic Description
1 AC Voltage Okay ACOKH This signal indicates the presence or absence
of valid ac power entering the power supply. When valid ac power is
present, this signal will be high. When the ac power is lower than the
required minimum input voltage, this signal will be low.
2 Voltage Bias VBIAS This signal is connected to the communications
control register via a jumper on the system module. The jumper is
installed only for manufacturing testing.
3 None This pin is missing to provide a key for the cable connector.
4 -12 V -12 V input
5,6 +12 V + 12 V input
7,8,9 +5 V +5 V input
10, II, 12, 13 Ground GND DC power return and signal ground
Page 1-10 gives the following regulated values:
+5.1 V ?6% over the current range of 2.5 A to 11.5A
+12.1 V ?6% over the current range of 0.6 A to 6.7A
-12 V ? 7% over the current range of 0.0 A to 0.15 A
~130W power draw max.
Warner
Warner
alan
On 2/27/19 10:22 AM, Alan Perry via cctech 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?
alan
9:36 a.m.
New subject: The continuing story of a Rainbow 100 (Was: Rainbow 100 PSU capacitor list)
On Tue, Mar 12, 2019 at 1:08 AM Alan Perry <aperry at snowmoose.com> wrote:
As noted in the subject, continuing the story of the Rainbow 100 that I
rescued last year.
The replacement PSU arrived today and I installed it. It came up to the
Main System Menu, but I had forgot to plug the RX50 cable into the
controller board and the RX50 power cable. Though it prompted to press a
key, it did not respond when a key was pressed.
I powered down and plugged that stuff in. When I powered it back up, the
display showed a keyboard error and did not display the Main System Menu as
before. All of the keyboard LEDs lit, then the last one started blicking
accompanied by a pattern of beeps. I should have checked the LEDs on the
system unit, but I only did it when the "Main Board interrupt off" message
was displayed and it corresponded to Message Number 2. If I disconnect the
keyboard, the system just displays a message about the keyboard.
I was going to take a more systematic approach to diagnosing the issue
tomorrow. Since the system "just" worked last time I powered it up, I
wasn't expecting things not to work ...
Any suggestions on what to look at?
I'd check the following things:
(1) pull apart all the connections, especially for ones you've done
recently. Use a bright light and look for bent pins. Before pulling apart,
make sure it was seated properly (though often it's impossible).Also make
sure cards are fully seated, diagnostics can fail if they aren't.
(2) Double check all things are connected. The diagnostics are very picky.
(3) Be very careful. This sounds like some issues I've had. I seated the
RX-50 controller card improperly and bent a pin and it caused weird things
to fail. Even a little side to side motion can cause a problem, at least it
did for me.
Warner
alan
On 3/6/19 10:21 PM, Warner Losh wrote:
On Wed, Mar 6, 2019 at 9:11 PM Alan Perry <aperry at snowmoose.com> wrote:
On 3/6/19 5:15 PM, Warner Losh wrote:
On Wed, Mar 6, 2019 at 4:36 PM Alan Perry via cctech <
cctech at classiccmp.org> wrote:
The Rainbow 100 Technical Manual (page 3-30) has the following table:
Table 3-11 Power Supply Connector (J8) Signals
Pin Signal Mnemonic Description
1 AC Voltage Okay ACOKH This signal indicates the presence or absence of
valid ac power entering the power supply. When valid ac power is present,
this signal will be high. When the ac power is lower than the required
minimum input voltage, this signal will be low.
2 Voltage Bias VBIAS This signal is connected to the communications
control register via a jumper on the system module. The jumper is installed
only for manufacturing testing.
3 None This pin is missing to provide a key for the cable connector.
4 -12 V -12 V input
5,6 +12 V + 12 V input
7,8,9 +5 V +5 V input
10, II, 12, 13 Ground GND DC power return and signal ground
Page 1-10 gives the following regulated values:
+5.1 V ?6% over the current range of 2.5 A to 11.5A
+12.1 V ?6% over the current range of 0.6 A to 6.7A
-12 V ? 7% over the current range of 0.0 A to 0.15 A
~130W power draw max.
Warner
Warner
There was a lot of related discussion to this,
but my question was never
answered. Now I seem to have found the answer myself.
According to a post on VCF Forums, here is the list:
2x 3200uF @ 16V
1x 2200uF @ 35V
2x 820uF @ 250V
1x 560uF @ 20V
1x 330uF @ 20V
3x 47uF @ 16V
1x 10uF @ 35V
1x 2uF @ 25V
I went ahead and ordered a (claimed) working PSU. Hope it actually works
Cool. Has anybody tried to run an AT or ATX power supply with an adapter
for the Rainbow?
Do you have pinouts for the connectors on the power supply?
alan
On 2/27/19 10:22 AM, Alan Perry via cctech 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?
alan
2112
days inactive
2125
days old
19 comments
6 participants
participants (6)
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aperry＠snowmoose.com -
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