Recaping a Macintosh Portable

[Simon Claessen]

No you dont need that, only if you want to change main batteries during 
sleep. note for this setup you need *two* working main batteries. :-)

but do change the caps, and you can substitute the platter of a mac 
classic 40mb drive and reuse the electronics of the drive in the 
portable. just dont place the portable upright as the goo in the grives 
sealing will drip on the platters, killing the heads.

simon

On 08-12-14 16:52, Ben Sinclair wrote:
> Also, make sure the extra 9V battery is installed and good!
>
> On Mon, Dec 8, 2014 at 9:49 AM, Ben Sinclair <bensinc at gmail.com> wrote:
>
>> I have a Portable as well, and that's correct about the battery. It won't
>> boot at all, even with external power, if the battery is dead.
>>
>> Try doing some searching about alternative power supplies. I believe the
>> problem is that the standard power supply can't source enough power to get
>> things started on its own. I've read about people having success using a
>> power supply from a PowerBook 100, or building their own power supplies.
>>
>> On Mon, Dec 8, 2014 at 9:40 AM, Sean Caron <scaron at umich.edu> wrote:
>>
>>> Don't they also act funny if the internal battery is dead? You might have
>>> to provide a substitute for that voltage. My memory is pretty fuzzy...
>>> it's
>>> been a while since I've read anything or given any mindshare to a Mac
>>> Portable. But I definitely remember they had some strange quirks in their
>>> behavior.
>>>
>>> Best,
>>>
>>> Sean
>>>
>>>
>>> On Mon, Dec 8, 2014 at 2:13 AM, drlegendre . <drlegendre at gmail.com>
>>> wrote:
>>>
>>>> If this is one of the original Mac Portables (white, wedge-shaped, B&W
>>> LCD
>>>> screen), have you disconnected the HD from the motherboard?
>>>>
>>>> The HDs on these machines just love to die, and when they do, they can
>>>> screw-up the whole machine. If you haven't already eliminated that
>>>> possibility, I'd do it before you run around replacing anything else. If
>>>> you can find the correct drive, you can make a cable to adapt it to the
>>>> portable - but you won't have the low-power feature of the original
>>> drive.
>>>>
>>>> It's been 15 years, but I went through one of those machines, back when.
>>>>
>>>> On Sun, Dec 7, 2014 at 6:26 PM, Matt Patoray <mspproductions at gmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>> Hello all,
>>>>>
>>>>> I have a Mac portable that refuses to even attempt to boot.
>>>>>
>>>>> I get random junk on the screen that is different on every power up,
>>> no
>>>>> drive activity and no sound.
>>>>>
>>>>> I am thinking the onboard surface mount electrolytics are due for
>>>>> replacement.
>>>>>
>>>>> I was able to read the values off of most of the caps but I was not
>>> able
>>>>> to read the follow caps. C4, C5, C15 and C24.
>>>>>
>>>>> Does anyone know what value those caps are?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Matt
>>>>>
>>>>> Sent from my iPhone
>>>>>
>>>>
>>>
>>
>>
>>
>> --
>> Ben Sinclair
>> ben at bensinclair.com
>>
>
>
>

-- 
Met vriendelijke Groet,

Simon Claessen
drukknop.nl