Very early Vic-20 has different board than I've seen before
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Very early Vic-20 has different board than I've seen before
I had a pile of vics in the corner waiting testing, I won some
auctions earlier this summer. One was a pet-style keyboard, so
I opened it up first, and found a motherboard that I had never
seen before. It had a copyright date of 1980, and the 6560 had
a date code of 1980. It didn't work at first, but I found a cold solder
joint on the bridge rectifier, and now works. Sadly the 6560
with the early date had crappy sound, so I had to replace it with
a newer chip.
I also found a cost reduced vic with socketed rom chips. All my
other cr vics are soldered.
Here is a photo of the boards with a standard non-cr board for
comparison:
http://good-times.webshots.com/photo/20 ... 8028vcoDqP
Here is a close up of the early board:
http://good-times.webshots.com/photo/27 ... 8028hoPZhv
The early vic has a serial number in the 50k range, and had an
FCC label that says that approval was pending. Also, the motherboard
had a sticker that says produced 06/81. The machine was labeled
made in Japan.
The video was very clear, in contrast to most of my other vics that
need tweeking now and then to keep them in sync.
How common are these boards? Does anyone have one here?
-Brian
auctions earlier this summer. One was a pet-style keyboard, so
I opened it up first, and found a motherboard that I had never
seen before. It had a copyright date of 1980, and the 6560 had
a date code of 1980. It didn't work at first, but I found a cold solder
joint on the bridge rectifier, and now works. Sadly the 6560
with the early date had crappy sound, so I had to replace it with
a newer chip.
I also found a cost reduced vic with socketed rom chips. All my
other cr vics are soldered.
Here is a photo of the boards with a standard non-cr board for
comparison:
http://good-times.webshots.com/photo/20 ... 8028vcoDqP
Here is a close up of the early board:
http://good-times.webshots.com/photo/27 ... 8028hoPZhv
The early vic has a serial number in the 50k range, and had an
FCC label that says that approval was pending. Also, the motherboard
had a sticker that says produced 06/81. The machine was labeled
made in Japan.
The video was very clear, in contrast to most of my other vics that
need tweeking now and then to keep them in sync.
How common are these boards? Does anyone have one here?
-Brian
If you document it, its not a bug, its a feature.
~
You can have peace, or you can have freedom. Just don't count on having them both at once.
~
There was a time, before we were born. If someone asks, this is where I'll be.
~
You can have peace, or you can have freedom. Just don't count on having them both at once.
~
There was a time, before we were born. If someone asks, this is where I'll be.
Re: Very early Vic-20 has different board than I've seen bef
I have an early (low serial number) PAL VIC-20 that I picked up in England back in June. It too has PET-style keys. I'll have to open it up and check it out the board.yoyodyne wrote:One was a pet-style keyboard, so
I opened it up first, and found a motherboard that I had never
seen before. It had a copyright date of 1980, and the 6560 had
a date code of 1980. It didn't work at first, but I found a cold solder
joint on the bridge rectifier, and now works. Sadly the 6560
with the early date had crappy sound, so I had to replace it with
a newer chip.
[snip]
The early vic has a serial number in the 50k range, and had an
FCC label that says that approval was pending. Also, the motherboard
had a sticker that says produced 06/81. The machine was labeled
made in Japan.
The video was very clear, in contrast to most of my other vics that
need tweeking now and then to keep them in sync.
How common are these boards? Does anyone have one here?
Truly,
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug
The Other Group of Amigoids
http://www.calweb.com/~rabel1/
- eslapion
- ultimate expander
- Posts: 5458
- Joined: Fri Jun 23, 2006 7:50 pm
- Location: Canada
- Occupation: 8bit addict
Re: Very early Vic-20 has different board than I've seen bef
I had a VIC with a japanese made board like that which I sold to a german collector. He managed to get it shipped to the US to get Michael Tomczyk to autograph it.yoyodyne wrote:The early vic has a serial number in the 50k range, and had an
FCC label that says that approval was pending. Also, the motherboard
had a sticker that says produced 06/81. The machine was labeled
made in Japan.
The video was very clear, in contrast to most of my other vics that
need tweeking now and then to keep them in sync.
How common are these boards? Does anyone have one here?
These have exactly the same part no. mainboard as the VIC-1001, only the ROMs differ.
Be normal.
-
- Pinballer
- Posts: 84
- Joined: Thu Jan 12, 2006 2:30 am
- Website: http://www.vic20.de
- Location: Germany
HI yoyodyne,
yes 4....
1. http://www.vic20.de/html/vic_1001.html
2. http://www.vic20.de/html/vic20_usa_1.html
3. http://www.vic20.de/html/vic20_usa_2.html
4. http://www.vic20.de/html/vc20_germany_1.html
and eslapion your VIC20 not my VIC20...
http://www.vic20.de/html/michael_s__tomczyk.html
regards Jogi
yes 4....
1. http://www.vic20.de/html/vic_1001.html
2. http://www.vic20.de/html/vic20_usa_1.html
3. http://www.vic20.de/html/vic20_usa_2.html
4. http://www.vic20.de/html/vc20_germany_1.html
and eslapion your VIC20 not my VIC20...
http://www.vic20.de/html/michael_s__tomczyk.html
regards Jogi
I've never seen that metal thing under the whole board on the CR model before. Is it like that on NTSC?
PRG Starter - a VICE helper / Vic Software (Boray Gammon, SD2IEC music player, Vic Disk Menu, Tribbles, Mega Omega, How Many 8K etc.)
It is just an 'adapter' so the smaller cr motherboard can still be attachedBoray wrote:I've never seen that metal thing under the whole board on the CR model before. Is it like that on NTSC?
to the case in the original, non-cr motherboard mounts.
@Jogi: Nice pictures, thanks for posting the links!
If you document it, its not a bug, its a feature.
~
You can have peace, or you can have freedom. Just don't count on having them both at once.
~
There was a time, before we were born. If someone asks, this is where I'll be.
~
You can have peace, or you can have freedom. Just don't count on having them both at once.
~
There was a time, before we were born. If someone asks, this is where I'll be.
- eslapion
- ultimate expander
- Posts: 5458
- Joined: Fri Jun 23, 2006 7:50 pm
- Location: Canada
- Occupation: 8bit addict
http://www.postimage.org/image.php?v=aV1GQXEJJogi wrote:and eslapion your VIC20 not my VIC20...
http://www.vic20.de/html/michael_s__tomczyk.html
regards Jogi
This guy has a PET style keyboard.
Strange that the date on it is the same...
Be normal.
-
- Pinballer
- Posts: 84
- Joined: Thu Jan 12, 2006 2:30 am
- Website: http://www.vic20.de
- Location: Germany
-
- Pinballer
- Posts: 84
- Joined: Thu Jan 12, 2006 2:30 am
- Website: http://www.vic20.de
- Location: Germany