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ack
15 Year Member
Ninja Combat Warrior
·
From
Seattle, WA
Joined
Apr 9, 2009
Last seen
Today at 10:28 PM
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ack
reacted to
city41's post
in the thread
Putting a ROM hack on a real cart?
with
Like
.
So far so good. I've only soldered in the p1 chip and that's exactly what I expected. Now for the other five. I got this...
Jul 12, 2024
ack
reacted to
doaal's post
in the thread
AES 3-5 Palette RAM Unwritable
with
Like
.
No connection from pin 9 on the 68k to R/W on PROG. Bridged it and we're fixed. Thanks so much for the help!
Jul 1, 2024
ack
replied to the thread
AES 3-5 Palette RAM Unwritable
.
R/W should be coming from the cpu, maybe you have a cut trace?
Jul 1, 2024
ack
replied to the thread
AES 3-5 Palette RAM Unwritable
.
PALWE would only go low on a write from the CPU. It might not happen that often. Reading nothing on 40 sounds like the problem. Do you...
Jul 1, 2024
ack
replied to the thread
AES 3-5 Palette RAM Unwritable
.
I would work your way back to where the WE signal comes from / generated from. As you noted its coming from the NEO-G0 chip (pin 41)...
Jun 30, 2024
ack
reacted to
hkz's post
in the thread
MV4 repair attempt / PRO-B0 potentially dead
with
Like
.
As I said in my previous replies, Unibios 3.3 and the original work flawlessly. I think the board can be considered fixed :)
Jun 21, 2024
ack
replied to the thread
MV4 repair attempt / PRO-B0 potentially dead
.
Couple things I would try - Clear the backup ram - Verify the 5V rail is at 5.0V when the board is powered on with games in it.
Jun 19, 2024
ack
replied to the thread
Neoboismasta
.
Provide a link to what you bought. I would bet it comes with unibios if its already consolized for you.
Jun 14, 2024
ack
reacted to
Neo Alec's post
in the thread
AES - Blue screen and reset loop
with
Like
.
Usually the diag bios would be the next step. If you're not comfortable desoldering, you should get help.
Jun 9, 2024
ack
reacted to
hkz's post
in the thread
MV4 repair attempt / PRO-B0 potentially dead
with
Like
.
Yup, ordered some PRO-B0s, they're on their way to me. Interestingly, I noticed that after the last round of patching I did, even...
Jun 6, 2024
ack
replied to the thread
MV4 repair attempt / PRO-B0 potentially dead
.
Good job I finding and fixing what you could. I would get the PRO-B0 swapped. Something in side of it got hot enough to rupture it so...
Jun 5, 2024
ack
reacted to
Neo Alec's post
in the thread
Irritating Maze Cart Bad Sound
with
Like
.
The GQ-4X EPROM programmer is really slick. I've had the same cheap Willem programmer for 20 years, so the UI of the latest software is...
May 27, 2024
ack
reacted to
Neo Alec's post
in the thread
Irritating Maze Cart Bad Sound
with
Like
.
I swapped out the V1 with an EPROM and that seems to have done the trick. The sound is working correctly now. It wasn't the V2 or the...
May 23, 2024
ack
replied to the thread
MV1FZS And one cart problem
.
There is definitely something wrong related to those ram chips. I'm a bit suspect its not the chips themselves, as it seems unlikely...
May 10, 2024
ack
replied to the thread
MV1FZS And one cart problem
.
Yes those are the ones.
May 9, 2024
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