aes first run no sound

Hi everyone

i have to repair an aes first run with no sound output.

first check

repair 1 trace on ym 2610 "pin 56"

replace ym 2610 and check analogue out from pin 27 "nothing"

replace dac ym3016
replace Z80
check prog board to YM all continuity from board to ym.

i have check the op amp and full working with classic "BUMP" of preamp.

anyone can help me ?
thanks

Check the communication between the Z80, 2610, 6116 and SM1.

Also make sure it isn't a trace from the cart slot.

http://www.jamma-nation-x.com/jammax/tutorials.html?show=aesym2610

Xian Xi said:

Check the communication between the Z80, 2610, 6116 and SM1.

Also make sure it isn't a trace from the cart slot.

http://www.jamma-nation-x.com/jammax/tutorials.html?show=aesym2610

Click to expand...

tnks for the answer, if is possibile problem from 68k to z80?