Re: Is it at all possible?

From: Bo Herrmannsen <*bo.herrmannsen_at_gmail.com*> Date: Sat, 18 Feb 2017 23:45:56 +0100 Message-ID: <CAFqpYu6od_PHsnqV1GMQNMYW=h-Dgd9Kic=SqUwGmAdrzuC4dA@mail.gmail.com> · bo.herrmannsen_at_gmail.com

but the pic from Santo did help crack the few last mysteries :-D

2017-02-18 23:38 GMT+01:00 Nick Vivid <nickvivid@gmail.com>:

> I have 2 326298 rev a boards I don't mind hacking apart and taking
> pictures of in the name of science. Let me know if you guys need anything.
>
>
>
> On Feb 18, 2017 3:45 PM, "Bo Herrmannsen" <bo.herrmannsen@gmail.com>
> wrote:
>
> YES
>
> that pic helped me solve the dammn RP4 mystery..
>
> on the schematic R51 should have been labeled RP4...
>
> it connects to pin 4 of the expansion port which on the pic goes to Rp4
>
>
>
> 2017-02-18 20:39 GMT+01:00 Santo Nucifora <santo.nucifora@gmail.com>:
>
>> I added head-on pics of the 326298 Rev A and C boards. Sadly, the back
>> has a metal shield soldered onto both boards that will be difficult to
>> remove and I'd like to keep these as working boards so front pics only.
>>
>> On Sat, Feb 18, 2017 at 2:31 PM, Gerrit Heitsch <
>> gerrit@laosinh.s.bawue.de> wrote:
>>
>>> On 02/18/2017 08:15 PM, silverdr@wfmh.org.pl wrote:
>>>
>>>>
>>>> On 2017-02-18, at 09:36, smf <smf@null.net> wrote:
>>>>>
>>>>> "The sweet spot is a 250466 board
>>>>>
>>>>
>>>> Precisely…
>>>>
>>>> The VIC chip on those boards is a R5, which gives the clearest picture.
>>>>> "
>>>>>
>>>>
>>> Not quite... You can get a clear picture from a 6569R1, 6569R3 or 6569R4
>>> (that one is rather rare) as well. The problem on the older boards is
>>> mostly the modulator. Replace it with a simple video amp and you will have
>>> a very good picture. Ok, you lose the RF output, but who is using that
>>> anymore?
>>>
>>>
>>> It also has the 8 pin video port, not 5 pin like the earlier ones.
>>>>>
>>>>
>>>> Which is also not fully correct. Should read "like some of the earlier
>>>> ones". Not all earlier boards had 5-pin A/V socket.
>>>>
>>>
>>> Even the old KU board already has the 8pin Video out.
>>>
>>>  Gerrit
>>>
>>>
>>>
>>>
>>>       Message was sent through the cbm-hackers mailing list
>>>
>>
>>
>
>


       Message was sent through the cbm-hackers mailing list