TMNT

[Retroman839]

I am out but if your seach for tmnt mame cpp it will show you the driver stuff and tells you loads in there.

Managed get it :-

mame/src/mame/konami/tmnt.cpp at master · mamedev/mame

MAME. Contribute to mamedev/mame development by creating an account on GitHub.

github.com

Dave.

Thanks Dave will take a good look at that ..
Nice one ☝️

 

[Retroman839]

I am out but if your seach for tmnt mame cpp it will show you the driver stuff and tells you loads in there.

Managed get it :-

mame/src/mame/konami/tmnt.cpp at master · mamedev/mame

MAME. Contribute to mamedev/mame development by creating an account on GitHub.

github.com

Dave.

Thanks Dave will take a good look at that ..
Nice one ☝️

 

[Retroman839]

Looking at a 74ls74( Fujitsu mb74

Is my 74ls74a Below it compatible ?


Top row , 8&9 good signal with probe . 10,11,12 & 13 nothing?
No clock 2

 

[xga]

Is my 74ls74a Below it compatible ?

Yes, it is.

 

[Retroman839]

Yes, it is.

Thanks dude ,
I’m reading schimatic for turtles normal .
And lightning fighters
Looking for this chip 15f
Can’t find it -

Nothing on legs 10 11 12 & 13

 

[Retroman839]

Video of probing inactivity of 74ls74 @ 15f

Can’t find this 15f. On turtles or lightning fighters schimatic

 

[xga]

Is that what you are looking for?

 

[Lurch666]

Look at the traces on your PCB to see if any are connected to those pins.
The LS74 is two flip flops and one may be unused.

 

[Retroman839]

Look at the traces on your PCB to see if any are connected to those pins.
The LS74 is two flip flops and one may be unused.

Is that what you are looking for?

View attachment 34085

that looks right ..
Is this a turtles schimatic ?
Thanks

 

[Retroman839]

Look at the traces on your PCB to see if any are connected to those pins.
The LS74 is two flip flops and one may be unused.

Yeh I saw it is two flips flops .
Thx lurch
This is the slice


Dual D flip flops

 

[xga]

It's from the schematics for Turtles in Time

 

[Retroman839]

Got this from turtles schimatic

Same circuit ..
Snd on. Sound on I guess .

Clearly only one of the flip flops

So I can assume this is ok ,
Dead legs 10 , 11, 12,13
Will be the unused flip flop .
Move on to the rest of the Fujitsu rams ?

 

[Retroman839]

It's from the schematics for Turtles in Time

Do you have a link pls
I cannot find them schimatics

I’m looking for sprite sync logic area ?

 

[xga]

Sure.

Turtles in Time schematics

 

[Retroman839]

Sure.

Turtles in Time schematics

Thanks 🙏…

 

[Retroman839]

Going to check with magnifier
All legs on the customs .