Re: apprentice sorcerer...

I need +5 in place of +12 for the 4164

the idea is to replace the 12v regulator by a 5v regulator :)

so this way the board look the same :)  and no flying wire between +5 
and +12


just a little adaptor to connecte the 9v power supply on J8

something easy to remove






On 12/10/2016 22:34, Mike Stein wrote:
> So, you're going to use a 9V supply in the final version instead of the AT(X) ? Sounds good, but why *two* regulators?
>
> m
>
> ----- Original Message -----
> From: "didier derny" <didier@aida.org>
> To: <cbm-hackers@musoftware.de>
> Sent: Wednesday, October 12, 2016 3:28 PM
> Subject: Re: apprentice sorcerer...
>
>
>> the atx power supply is connected with flying wires...
>>
>>
>> some people blew a fuse when they saw a cherry tree :)
>>
>> for me it's when I see flying wires :)
>>
>>
>> I guess I can have something nice with a single tension +9v
>>
>>
>> On 12/10/2016 21:19, Mike Stein wrote:
>>> Why do you need regulators if you're using an ATX supply?
>>>
>>> m
>>>
>>>
>>> ----- Original Message -----
>>> From: "didier derny" <didier@aida.org>
>>> To: <cbm-hackers@musoftware.de>
>>> Sent: Wednesday, October 12, 2016 2:38 PM
>>> Subject: Re: apprentice sorcerer...
>>>
>>>
>>>> Hi :)
>>>>
>>>> I dont have any display only a motherboard :)
>>>>
>>>> actually  composite interface on flat screen...
>>>>
>>>> in a few ways on vga...
>>>>
>>>> yes reversible no flying wires, no tracks modified...
>>>> just a swap of a few components...
>>>>
>>>>
>>>>
>>>>
>>>> On 12/10/2016 19:39, Mike Stein wrote:
>>>>> All reversible of course... ;-)
>>>>>
>>>>> How are you powering the display?
>>>>>
>>>>> m
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Didier Derny" <didier@aida.org>
>>>>> To: <cbm-hackers@musoftware.de>
>>>>> Sent: Wednesday, October 12, 2016 6:16 AM
>>>>> Subject: apprentice sorcerer...
>>>>>
>>>>>
>>>>>> hi
>>>>>>
>>>>>> I'm thinking to the following modification on the cbm 8032 motherboard
>>>>>> reinstall a regulator for 5v  (switched version)
>>>>>> reinstall a 5v regulator in place of 12v (switched version)
>>>>>> Inject +9v DC on the power supply connector for both 5v and 16v... AC
>>>>>>
>>>>>> I hope to get:
>>>>>> +5v  normal place
>>>>>> +5v  in place of 12v
>>>>>> nothing on -5v
>>>>>> a bit less than 9v unregulated (for tape)
>>>>>>
>>>>>> I did something similar on a tandy coco 2 and it works fine...
>>>>>>
>>>>>> any idea ?  (the power supply of the cbm is more complex that the one on
>>>>>> the coco)...
>>>>>>
>>>>>> --
>>>>>> didier
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>          Message was sent through the cbm-hackers mailing list
>>>>>           Message was sent through the cbm-hackers mailing list
>>>>         Message was sent through the cbm-hackers mailing list
>>>          Message was sent through the cbm-hackers mailing list
>>
>>        Message was sent through the cbm-hackers mailing list
>         Message was sent through the cbm-hackers mailing list


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