Yocto2 test mode

Hi all. Are there specific instructions anywhere about how to use the Yocto2 test mode, measurement points and what results to expect for each voice? The Nava instructions has some manual tests, some of which are also applicable to Yocto2 I think but Nava doesn't have the test mode right?

Brownie_0403 wrote:Hi all. Are there specific instructions anywhere about how to use the Yocto2 test mode, measurement points and what results to expect for each voice? The Nava instructions has some manual tests, some of which are also applicable to Yocto2 I think but Nava doesn't have the test mode right?

Yep Nava doesnt have the test mode

I was seeing a 10v negative pulse on pin 7 on ic2 when in test mode if that helps. The waveforms for each voice can be found in the original 808 service manual online.

-Rich