Found a new NeoGeo AES version / 4.1

F

fafangus

n00b
Joined
Dec 14, 2013
Posts
5
Yo all
Long time lurker, first post here ^^

Last year I've acquired a strange Neo aes

It comes with an armored mobo, works with 5v psu, and strange things it is mentioned 4.1
Also it got an smd bios, like Neo CD one

No serial, or etiquette on the back

https://youtu.be/UmVAyng-PPw


http://fafangus.chez.com/image/41/received_2294464727450623.jpeg
http://fafangus.chez.com/image/41/thumbnail_received_2260712634142447.jpg






little rar with pics
http://fafangus.chez.com/image/41/29/41-1.rar

To note, grey color on the bottom of the plastic shell, and the 2 thin layer of transparent plastic where the mobo rest


Talking with friend, it may be a test console, proto one (?)

Talking also with Furrtek, he as updated the NeoGeoDev wiki :
https://wiki.neogeodev.org/index.php?title=NEO-AES4-1_board&t=20181229113420


Do you know more, to understand what that's really?

Thanks
 
Last edited:
massimiliano

massimiliano

ネオジオ,
20 Year Member
Joined
Feb 27, 2004
Posts
3,225
interesting "94-1-24" after the revision...I doubt it's a date, as it would be too early..not an expert but I don't think other revisions have such digits after the revision?
 
MKL

MKL

Basara's Blade Keeper
20 Year Member
Joined
Mar 8, 2002
Posts
3,686
Most ICs have 93 as the manufacturing date so it's not far fetched to assume that the system was in fact made in 94. First time a see a home system like that...
 
wyo

wyo

King of Spammers
10 Year Member
Joined
May 22, 2013
Posts
10,164
Nice find! Where did you get it?
 
massimiliano

massimiliano

ネオジオ,
20 Year Member
Joined
Feb 27, 2004
Posts
3,225
far from the SMD bios, maybe other components could have been shared with the NGCD? same year, maybe an attempt to optimize production?
 
F

fafangus

n00b
Joined
Dec 14, 2013
Posts
5
Just buyed on YAJ, seller said that the unit was heavy, and without serial, so I just thinked it was a 3.3 with the classic metallic shell
 
defalt

defalt

Cheng's Errand Boy
Joined
Oct 12, 2017
Posts
114
One strange thing is that they apparently never released it. It does not make much sense that they took the time to design a new board and never released it, even more knowing that it would have been very cost efficient due to the components same as in the NGCD. Moreover the AES had not yet reached its max. popularity in 94, so the demand was still high. The missing serial label is another sign that confirms even more that it would be a proto.
 
F

fafangus

n00b
Joined
Dec 14, 2013
Posts
5
Hi all
I dumped the 4.1 bios, thanks to DS multi's AES (without the need of unsolder the chip), after checked it with a MAME team member, it's a classic AES jap bios


Source Code

ROM_START( aes )
ROM_SYSTEM_BIOS( 1, "japan", "Japan AES" )
ROM_LOAD16_WORD_SWAP_BIOS( 1, "neo-po.bin", 0x00000, 0x020000, CRC(16d0c132) SHA1(4e4a440cae46f3889d20234aebd7f8d5f522e22c) ) // AES Console (Japan) Bios

:/

http://fafangus.chez.com/Bios_AES41.zip
 
Heinz

Heinz

Parteizeit
15 Year Member
Joined
Feb 13, 2005
Posts
22,401
Thanks for sharing that but it's a pity you had to damage the shield to remove it. Could you not have de-soldered it instead?
 
ggallegos1

ggallegos1

Cholecystectomy Required.,
10 Year Member
Joined
Oct 1, 2013
Posts
5,156
Saw this on JAmes' Instagram, great find! Anyone know any history behind it, as in if it's a proto or dev unit?
 
F

fafangus

n00b
Joined
Dec 14, 2013
Posts
5
lachlan said:
Thanks for sharing that but it's a pity you had to damage the shield to remove it. Could you not have de-soldered it instead?
Click to expand...

Thanks, arf,in fact the shield was holded by screw, but there were masked by the shield (!!), so I'll do it as I could, just to not broke anything on the mobo, if I knew I'll do it in another way
 
Razoola

Razoola

Divine Hand of the UniBIOS,
Staff member
20 Year Member
Joined
Nov 12, 2002
Posts
4,662
fafangus said:
Hi all
I dumped the 4.1 bios, thanks to DS multi's AES (without the need of unsolder the chip), after checked it with a MAME team member, it's a classic AES jap bios


Source Code

ROM_START( aes )
ROM_SYSTEM_BIOS( 1, "japan", "Japan AES" )
ROM_LOAD16_WORD_SWAP_BIOS( 1, "neo-po.bin", 0x00000, 0x020000, CRC(16d0c132) SHA1(4e4a440cae46f3889d20234aebd7f8d5f522e22c) ) // AES Console (Japan) Bios

:/

http://fafangus.chez.com/Bios_AES41.zip
Click to expand...

Pity but thanks for trying.
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
It still uses a CXA1145 which is surprising, I thought they would update it to a 1645 or better. But judging by all the filtering caps, I wonder how clean the audio is compared to earlier factory releases.
 
wyo

wyo

King of Spammers
10 Year Member
Joined
May 22, 2013
Posts
10,164
Xian Xi said:
It still uses a CXA1145 which is surprising, I thought they would update it to a 1645 or better. But judging by all the filtering caps, I wonder how clean the audio is compared to earlier factory releases.
Click to expand...

It does look like they cut some corners with this PCB design. Would be interesting to see/hear a comparison.
 
Neo Alec

Neo Alec

Warrior of the Innanet
20 Year Member
Joined
Dec 7, 2000
Posts
12,008
It's kind of a shame they didn't go ahead with this. Did they just continue manufacturing 3-6 for a while instead? SNK made the determination at some point that there wasn't a demand for more AES systems. They continued to produce some 1-slot MVS boards after this.
 
Evan

Evan

Fio's Quartermaster
Joined
May 31, 2016
Posts
487
It was definitely an odd decision to keep the 3-6. The 41 seems cheaper to produce.
 
MKL

MKL

Basara's Blade Keeper
20 Year Member
Joined
Mar 8, 2002
Posts
3,686
All the pictures of 3-6 boards I can find have 93 as the manufacturing date on the components. I couldn't find any that had a later date.
 
F

fafangus

n00b
Joined
Dec 14, 2013
Posts
5
I had made a video in 2017 of the 4.1 (xrgb 2 + ossc + c2 + Xcapture1)
https://youtu.be/-7UJTUaxelM
Rgb signal very difficult to handle only with the ossc, I have to couple with the xrgb2 to stabilize it
On crt TV, the 4.1 works like a charm
Also it works with either 5v or 10v psu
 
HeavyMachineGoob

HeavyMachineGoob

My poontang misses Lenn Yang's wang
10 Year Member
Joined
Apr 3, 2011
Posts
5,845
I had always wondered why SNK never made an AES with more SMD components, something more in line with the smaller 1-slot MVS boards. This is a real treat to see, thanks for posting.
 
massimiliano

massimiliano

ネオジオ,
20 Year Member
Joined
Feb 27, 2004
Posts
3,225
..so, is it fair to say that the home console has been manufactured between early 1990 and early 1994?
 
defalt

defalt

Cheng's Errand Boy
Joined
Oct 12, 2017
Posts
114
On most websites it is said that the AES kept being manufactured until 1997. This seems strange as if they were manufactured from 1990 to 1997 and had 350k units made it would mean that the factory pushed out around 137 consoles per day which seems a bit low.
 
You must log in or register to reply here.
Top