On a hunch, I reflowed all of the joints on the two adjacent chips (the WaveFront IC and the Motorola CPU), and it's been working since then. Maybe the solder joints on the entire board are cracking. In any case, I'll keep my ears out for another TBS-2001, even in non-functional condition.

*sigh* Well...it's dead again. The WaveROM isn't recognized. I removed and resoldered it and checked all of the solder joints. At this point, I'm shelving it and searching (in vain) for another card.

It was more the solder joints on the WaveROM, but the onboard RAM was shorted too. I feel like something must have happened to the card, like an impact or a surge. I didn't mention the incident of failure. It was working fine until I decided to install Windows 95. It had 3.11 and was working fine, …

I GOT THE *!@#%$!@$# WORKING! This card must have had a fall or something. The RAM chip closest to the slot *still* doesn't have any data out. After reflowing the ROM, I got 332 samples loaded. Then, I added a matching 256K SIMM in the first slot, and it seems to be piggybacking the onboard RAM …

Phooey. So far, I've confirmed that none of the data or address lines on the two TC514256AJ-70 DRAM chips next to the RAM slots had any activity. I replaced them with Siemens HYB514256BJ-70 chips. It identifies the 256K of RAM. (If I disable the chips, I can put 2M in the slots and it recognized …

Yes I did, and I also probed the DAC to see if it was receiving or sending any signal. It has power and clock, but it's receiving zero's and sending silence.

It simply stopped responding. I did a quick check for broken solder joints or shorts, but I didn't know enough to dive any deeper. I sold it on eBay for parts/repair, and even in non-working condition it sold for more than enough to buy this Maui. I know that wavetable sound is a very personal, …

I haven't sourced any 514256 chips I can use, but they are Toshiba chips (which are dubious for the period). *shrugs* I ordered some OKI chips, same speed. I did find some near shorts on the caps near the RAM, so chances are one of them is shorted out. (I did pull the caps and test them, just to be …

That would fit with its behavior, particularly if the ROM is only giving out zero's. Bank switching is happening during playback, too. Either a RAM chip flattening out all of the data or the ROM failing to push out any samples could do it. I'll try that next.

"setwf -s" says WaveFront Hardware Version: 1.64 Firmware Version: 1.14 Synthesizer Volume: 119 Number of Voice: 32 Synthesizer Tuning: 0 Virtual MIDI Mode: Disabled Virtual MIDI Switch: Synth MIDI-In to synth Mode: Enabled Number of samples: 40 WaveFront Sample DRAM size: 262144 bytes. WaveFront …

I just grabbed a copy and am trying it now. I've never used this tool before, so I'm going to spend some time researching and playing with it. Thank you! I've been loading OSMAUI.MOT. I was tempted to try the TBS-2001 tools and see if they produce different results.

I don't detect a clock going to pin 16 on the DAC (D6376). When it's "playing" audio, it does create clocks to everything else, including the hex switcher. That signal varies depending on the actual MIDI being played, as well as the RAM it's pulling wavetable data from. I checked for continuity from …

Hi all! First time poster, long time lurker. \o I've got a Turtle Beach Maui (rev 1.0, though I don't know if there was ever another revision). I had a TBS-2001 for a long time. It perished, but at least I know a bit about the odd software setup. I'm testing it with a Pentium-II motherboard, as it's …