Re: Is it at all possible?

From: Bo Herrmannsen <bo.herrmannsen_at_gmail.com>
Date: Fri, 17 Feb 2017 23:44:19 +0100
Message-ID: <CAFqpYu52pEQu0TCqoZvxHgaPXwZ_FnbvU8cbuf6YJs+vw8CzTg@mail.gmail.com>
mystery continues....

i see a L3 on the pic i have... inside the tin box with the big chip

but its on on schematic in refrence guide... and not on the first schematic
in the service manual either, but maybe on some of the other schematics in
service manual

i wonder how they managed to keep track of things.... but hey, who said
that the pcb guy at commodore  was not a monkey :-D

2017-02-17 23:37 GMT+01:00 Santo Nucifora <santo.nucifora@gmail.com>:

> I only see an L5.  Can't see any other L's actually.  That goes for both.
>
> On Fri, Feb 17, 2017 at 5:34 PM, Bo Herrmannsen <bo.herrmannsen@gmail.com>
> wrote:
>
>> L4 is proberly located in the very corner next to the slot and power in
>>
>> on some boards the are below the slot
>>
>> but on revC i just figured that we just have 2 equal inductors on the
>> came core... red and green wire on the link i posted
>>
>> 2017-02-17 23:31 GMT+01:00 Santo Nucifora <santo.nucifora@gmail.com>:
>>
>>> A camera actually works better than a scanner.  I can take some pics
>>> tomorrow with better daylight.
>>>
>>> Yes, that's where I read Rev A vs Rev C :)
>>>
>>> I can find RP4 (resistor pack bear the cartridge slot.  Where is L4?
>>>
>>> On Fri, Feb 17, 2017 at 5:23 PM, Bo Herrmannsen <
>>> bo.herrmannsen@gmail.com> wrote:
>>>
>>>> nope that does not make sense either
>>>>
>>>> so you are not the only one that dont get date vs rev
>>>>
>>>> in the link i posted i can see rev C very faint at the bottom edge in
>>>> the middle
>>>>
>>>> just under the component FB10 and next to C93
>>>>
>>>> 2017-02-17 23:20 GMT+01:00 Santo Nucifora <santo.nucifora@gmail.com>:
>>>>
>>>>> I'm not sure where to look.  Chip dates are:
>>>>>
>>>>> - 326298 Rev A - 6502 date: Week 48 82
>>>>> - 326298 Rev C - 6502 date: Week 29 82
>>>>>
>>>>> I still don't get Commodore dates vs revisions.
>>>>>
>>>>> On Fri, Feb 17, 2017 at 5:17 PM, Bo Herrmannsen <
>>>>> bo.herrmannsen@gmail.com> wrote:
>>>>>
>>>>>> Can you see any production dates on the Rev A and Rev C ?
>>>>>>
>>>>>> 2017-02-17 23:14 GMT+01:00 Santo Nucifora <santo.nucifora@gmail.com>:
>>>>>>
>>>>>>> Slight change to my last message.  I have two boards plus a couple
>>>>>>> of extra C64 Silver labels that I don't know what's inside at this point.
>>>>>>>
>>>>>>> The open ones have:
>>>>>>> - 326298 Rev A
>>>>>>> - 326298 Rev C
>>>>>>>
>>>>>>> That picture is a Rev C.
>>>>>>>
>>>>>>> On Fri, Feb 17, 2017 at 5:13 PM, Bo Herrmannsen <
>>>>>>> bo.herrmannsen@gmail.com> wrote:
>>>>>>>
>>>>>>>> would it be pushing it using a scanner for that?
>>>>>>>>
>>>>>>>> benefits are able to get better image...
>>>>>>>>
>>>>>>>> does the board look the same as this: http://myoldcomputer.nl/
>>>>>>>> wp-content/uploads/2015/11/board-326298.jpg
>>>>>>>>
>>>>>>>> but i need details arround RP4 and L4
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> 2017-02-17 23:07 GMT+01:00 Santo Nucifora <santo.nucifora@gmail.com
>>>>>>>> >:
>>>>>>>>
>>>>>>>>> I have a C64 326298 board in front of me.  It's not for sale but
>>>>>>>>> I'm happy to take detailed pics if you need them.
>>>>>>>>>
>>>>>>>>> On Fri, Feb 17, 2017 at 4:47 PM, Bo Herrmannsen <
>>>>>>>>> bo.herrmannsen@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> also C48 and C93 is missing
>>>>>>>>>>
>>>>>>>>>> 2017-02-17 22:24 GMT+01:00 Bo Herrmannsen <
>>>>>>>>>> bo.herrmannsen@gmail.com>:
>>>>>>>>>>
>>>>>>>>>>> @Ruud
>>>>>>>>>>>
>>>>>>>>>>> Found some errors in your schematic
>>>>>>>>>>>
>>>>>>>>>>> U31 pin 16 is missing
>>>>>>>>>>> C68 is missing
>>>>>>>>>>>
>>>>>>>>>>> 2017-02-17 21:37 GMT+01:00 Bo Herrmannsen <
>>>>>>>>>>> bo.herrmannsen@gmail.com>:
>>>>>>>>>>>
>>>>>>>>>>>> @Silver no problemo... its no rush. I'm still getting my head
>>>>>>>>>>>> to absorb the schematic from the Programmer's Reference Guide and schematic
>>>>>>>>>>>> #326106. There are a few differences allready between the 2 and so far i
>>>>>>>>>>>> have just put a circle arround them
>>>>>>>>>>>>
>>>>>>>>>>>> But so far RP4 and L4 is the mystery bits. L4 is just listed as
>>>>>>>>>>>> a line filter with no values at all or any mfg code. all i know is that its
>>>>>>>>>>>> 2 inductors in one unit
>>>>>>>>>>>>
>>>>>>>>>>>> RP4 is a resistor pack with one common pin, but given its
>>>>>>>>>>>> listed as a 10 pin device there are 9 resistors inside, but i can only
>>>>>>>>>>>> count 8 on the schematic so i guess 1 is unused.
>>>>>>>>>>>>
>>>>>>>>>>>> 2017-02-17 21:23 GMT+01:00 <silverdr@wfmh.org.pl>:
>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> > On 2017-02-17, at 20:55, Bo Herrmannsen <
>>>>>>>>>>>>> bo.herrmannsen@gmail.com> wrote:
>>>>>>>>>>>>> >
>>>>>>>>>>>>> > @Silver
>>>>>>>>>>>>> >
>>>>>>>>>>>>> > When you come by the 326298 please let me know.
>>>>>>>>>>>>>
>>>>>>>>>>>>> As I wrote, I should have one somewhere. The keyword here is
>>>>>>>>>>>>> "somewhere". So I might have a quick look but if it's not easily found then
>>>>>>>>>>>>> I won't be able to dedicate enough time to dig it out. And - obviously - it
>>>>>>>>>>>>> won't be for sale but I might check a thing or two for you if needed.
>>>>>>>>>>>>>
>>>>>>>>>>>>> BTW. Some time ago I had a short discussion about VIC-20
>>>>>>>>>>>>> boards here. I don't remember know exactly with whom but if the person who
>>>>>>>>>>>>> wanted me to check things on those boards reads the list - please come back
>>>>>>>>>>>>> with your question again. Seems that I managed to gather /I think/ all my
>>>>>>>>>>>>> VIC-20s under one roof so I can check whatever you wanted to check there.
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> SD!
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>        Message was sent through the cbm-hackers mailing list
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>


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Received on 2017-02-17 23:02:27

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