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I'm not really sure, but according to my ohmmeter it was wired correctly. Snes ran overnight and the audio never dropped.

Good news! The snes has been running for 3 hous straight without problem. After you mentioned the reset button I reread the datahsheet for the cs8406 and wired the reset directly to the 5v rail. This could cause some some distortion on startup, but since my receiver delays audio for a few seconds af...

Do I just hook it up to ground and the reset on the 8406?

Also, I don't know if I'm just off, but the snes sounds better with the bypass cap in place. The deeper bass frequencies are a lot more detailed. After one more test today, when the sound stops playing on my receiver the optical spdif connector is still blinking, which I can only assume means it's s...

I desoldered the smallest caps I could find on a dead power supply, they're 2.2uf. I tested the snes for for nearly two hours while I watched a movie and the optical light stayed on, but there was no sound. Tempted to rip the whole thing apart and start from scratch. I will try the snes with a diffe...

To be honest, my wire job is a mess and pretty sloppy, so I wonder if noise is a problem. Given that you previously said that it's worse without the RF shield? Assuredly. Also, with that wiring, you should really have a bypass cap on the SPDIF board. Nothing's warm though? Odd. I'd probably add the...

I twisted a pair of wires for the 5v and the ground, but it had no effect. audio still drops out after 15min to an hour. I tried a different optical connector and it had the same problem. I cleaned all the flux on my TSSOP adapter as well. To be honest, my wire job is a mess and pretty sloppy, so I ...

Thanks for the help! No harm in running more or larger wire to the 7805 5v output right? I'll try that tomorrow. Right now I'm trying to isolate the problem by checking if the analog audio is still working when the optical cuts out. I'll also try a different spdif connector since I got these for che...

I performed my first snes digital audio mod today and it works fine for about 15 minutes and then the audio cuts out. I'm guessing it's a ground problem, but I've triple checked my wiring and nothing is shorted. When the audio cuts out the light from the spdif connector shuts off completely and if I...

All the information you could ever need are already on this forum just a few thread down. Pre-soldered TSOP from buyitnow are drop in replacement for 36 pin MASKROM. As for the longevity, I wouldn't worry about this, I've seem eprom from the 80's still working so I do not worry much about flash mem...

You can find plan for a crazy lorom/hirom switch over at romlaboratory's website. I'm sure you cna figure out what you're trying to do by looking at his info. That is if you don't mind getting a photosensitive seizure by visiting his site packed with animated gif from 2001. Here's a link to save yo...

So I picked out NBA live 96 because it has both a backup battery and 64k of sram. I'm planning the following to convert the PCB over: I'm planning to rewire the assignments on the top of the pcb at the mad1's IC's legs as much as possible using the following four steps: 1) Navy blue pin to red pin a...

I apologize if this has already been covered elsewhere, but when I searched for this I couldn't find information on it anywhere. Now at one point in my life I was a hardware electronics engineer so when I read about the difference between lorom and hirom games I suspected that the difference's on th...