AES w/ Graphics Issue

daskrabs

daskrabs

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IMAG0682

IMAG0683


Unmodded Japan 3-6. Carts and slot are clean. Correct PSU. Video RAM issue? Any ideas?
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
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Addressing issue. Does it do this with all games?
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
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Check continuity from B20 on the CHAR board pin to LSPC2 (137).
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
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27,762
Ok try this:

A19 from the char board to LSPC2(136).
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
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Posts
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daskrabs said:
It appears to be 134 not 136. But yes, continuity.
Click to expand...

A18 goes to 134, A19 goes to 136. Check that both of those are connected.

You might as well check the others as well:

CHAR(A18) - LSPC2(134)
CHAR(B19) - LSPC2(135)
CHAR(A19) - LSPC2(136)
CHAR(B20) - LSPC2(137)
 
daskrabs

daskrabs

Street Hoop Star
10 Year Member
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Xian Xi said:
A18 goes to 134, A19 goes to 136. Check that both of those are connected.

You might as well check the others as well:

CHAR(A18) - LSPC2(134)
CHAR(B19) - LSPC2(135)
CHAR(A19) - LSPC2(136)
CHAR(B20) - LSPC2(137)
Click to expand...

All have continuity.
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,762
Hmm, weird. It's definitely an addressing issue on the low side but if you have 100% continuity...hopefully it isn't a bad LSPC2. Try probing the video RAM and see what's going on.
 
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