Rainbow 100 PSU capacitor list

[Warner Losh]

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:
>
>> 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
>> >
>>
>>
>