Daytona USA 2 problem

S

segundosombra

Cheng's Errand Boy
Joined
Jul 29, 2004
Posts
114
I all!
I got this messege from my Sega Daytona USA 2 game while running a video board test:

POLYGON MEMORY
IC70 IC71

TEST FAILED
PRESS TEST BUTTON TO CONTINUE

What kind of devices are IC70 and IC71?
Any help with this problem would be much appreciated.

Thanks in advance,

Marcelo
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
Are you planning on fixing this yourself? If so, open it up and look.
 
S

segundosombra

Cheng's Errand Boy
Joined
Jul 29, 2004
Posts
114
I did it but I can't find them :( There are no ICs with IC70 and IC71 labels. Do you know if these are ram devices?

Thanks,
Marcelo
 
dragonpt

dragonpt

Over Top Auto Mechanic
10 Year Member
Joined
Oct 19, 2008
Posts
867
segundosombra said:
I all!
I got this messege from my Sega Daytona USA 2 game while running a video board test:

POLYGON MEMORY
IC70 IC71

TEST FAILED
PRESS TEST BUTTON TO CONTINUE

What kind of devices are IC70 and IC71?
Any help with this problem would be much appreciated.

Thanks in advance,

Marcelo
Click to expand...

I only have little expirience with , since a friend of mine have this one:

- Check the rams on the board if they are IC Ref: D4811650GF ou TC59G1632AFB/10
- The IC70 and 71 are on the Main Board 3 (sound board)




Board revision, step2.1 ?
 
Last edited:
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
dragonpt said:
I only have little expirience with , since a friend of mine have this one:

- Check the rams on the board if they are IC Ref: D4811650GF ou TC59G1632AFB/10
- The IC70 and 71 are on the Main Board 3 (sound board)




Board revision, step2.1 ?
Click to expand...

You sure the part number is TC59G1632AFB? That comes up as a QFP, the ones in the pic aren't QFP.
 
dragonpt

dragonpt

Over Top Auto Mechanic
10 Year Member
Joined
Oct 19, 2008
Posts
867
Xian Xi said:
You sure the part number is TC59G1632AFB? That comes up as a QFP, the ones in the pic aren't QFP.
Click to expand...
your right, did a little mistake, those part numbers are from the Daytona USA (1).

But The picture is the right one.
the boards are rev step2.1.
 
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