next message in archive
next message in thread
previous message in archive
Index of Subjects
Hi John,
Open your C64 and push down firmly on all socketed chips. I find,
after longtime use, the socketed chips are subject to 'chip creep', the
constant heating and cooling down of older motherboards cause the chips to
lift out their sockets. After awhile, the chips are high enough as to no
longer make sufficient contact with the sockets, and seemingly fail. This
is something every computer eventually suffers and the sheer age of the
C64's make them prime targets for the extreme cases of this.
Most PC/Mac users upgrade their computers regularly and never get to
experience chip creep. Oldtimers like you and I are finding it occuring
more often. The old Apple III was so bad for chip creep, the 6" drop was
the suggested solution years ago - pick up your computer and drop it on
your desk from a height of 6 inches and this would help to reseat the
chips that have lifted out of their sockets. I prefer the less violent,
push firmly on each chip action and you'll hear a slight 'crick' sound as
they reseat. If this works, you may find yourself able to get some of
your non-working systems functioning again.
If this doesn't help, I would suggest checking on the internet
newsgroup, 'comp.sys.cbm' as I see people giving away systems all the time
and someone may have extra C64's they can send you. I'm down to my last
one, which is an SX64 (the portable one). I had the same problem as you -
no video, and I opened up the SX64, pushed down on all the chips and all
was well again, which is why I suggested this fix. Don't be too rough on
the chips, though, as the motherboard also flexes a little and you might
break a trace if you're too firm.
This might also solve your echoing problems once you log into CCN.
Tony @ CCN Help
-----------------------
On Tue, 11 Jan 2011, John Dennis Elliott wrote:
> Yes there is (control a), but allit did was double the letters before I
> reached Chebucto. Once I reach Chebucto, it makes no difference. No
> characters show.
>
> since my last e-mail, my last C=64 has stopped sending video to my monitors.
> the cables and monitors work with my Vic-20.
> So a question that is not on your "job description"- does anyone have access
> to a spare C=64 that they could put on the bus to Truro? I would pay both
> purchase price and shipping charges if such a device is available.
> I now have 4 128s and 4 C=64s that do not work. some of my vic20s do, and my
> single plus4 does
next message in archive
next message in thread
previous message in archive
Index of Subjects