Synth-DIY Yahoo! Groups Archives

Thread

Batteries?

2018-01-05 by vignesro@...

Hi Guys, I'm new. I picked up a Korg Poly 800 a couple of weeks ago for $100. It's a little beat up and had no sounds in it. I opened it up and saw some one modified it so the 2032 coin sized battery could be replaced. So I replaced it and popped in new C batteries. I could never get successfully load in the original sounds from my laptop using the headphones out and a downloaded .wav file nor a downloaded .mp3 file. However, I was able to manually reprogram a few sounds and then using my old cassette player/recorder was able to save them to the tape and re-load from the tape. So I will try dumping the .wav to my tape player/recorder to see if that'll work.

But I question, why are there two batteries for the Poly 800? What do each of them do? Anyone know?

Thanks

Bob

Re: Batteries?

2018-01-05 by GregCoben@...

Bob, the original Poly-800 uses six C batteries primarily as backup to preserve the internal memory, although the batteries can be used for general operation in lieu of the AC adapter, for use in performing as a "keytar." Evidently the previous owner modified the unit to use a CR2032 for backup purposes in place of the C batteries. As long as you have an appropriate AC adapter, you would not need both the C batteries and the lithium button battery.

Regarding the audio interface for loading sounds, I have also tried unsucessfully to save/load sounds to/from my laptop and mp3 player, and thus need to rely on my old cassette recorder. I believe the problem is because the Poly-800 interface was designed for analog signal and therefore does not correctly interpret digital signal. Someone else in the group may have better information.

Greg

Re: Batteries?

2018-01-05 by vignesro@...

Hi Greg.

Wow. Thanks for such a quick response. Your answers match up with what I was thinking/hoping for. I'm going to pull the C batteries out completely knowing the CR2032 is fresh and installed. I should see no ill effects like losing my sounds when I turn off the unit. This will help me confirm the battery mod made by a previous owner actually works. Then I'll test the C batteries by putting them back in and pull the CR2032.

Thanks again.!!!

Bob

Re: [korgpolyex] Re: Batteries?

2018-01-06 by igotbatwings@...

I struggled a bit with loading the presets from my laptop, playing the tones out of itunes.

Was able to do it finally via trial/error with adjusting the volume.

Sent from my iPhone

On Jan 5, 2018, at 4:29 PM, vignesro@... [korgpolyex] <korgpolyex@yahoogroups.com> wrote:

Hi Greg.
Wow. Thanks for such a quick response. Your answers match up with what I was thinking/hoping for. I'm going to pull the C batteries out completely knowing the CR2032 is fresh and installed. I should see no ill effects like losing my sounds when I turn off the unit. This will help me confirm the battery mod made by a previous owner actually works. Then I'll test the C batteries by putting them back in and pull the CR2032.

Thanks again.!!!
Bob

Re: [korgpolyex] Re: Batteries?

2018-01-06 by Jan Palmér

Hi!

The poly800 is vett sensitive to the volumelevel of the backup signal.

-Try lowering the volume and start load on poly800.

-Then start wav on computer.

-While wav is playing raise the volume until you see blinking in panel of poly800, then you have correct level

-restart load again and it should work, at least it did for me :)

/jakk

Skickat från min iPhone

5 jan. 2018 kl. 22:29 skrev vignesro@... [korgpolyex] <korgpolyex@yahoogroups.com>:

Hi Greg.
Wow. Thanks for such a quick response. Your answers match up with what I was thinking/hoping for. I'm going to pull the C batteries out completely knowing the CR2032 is fresh and installed. I should see no ill effects like losing my sounds when I turn off the unit. This will help me confirm the battery mod made by a previous owner actually works. Then I'll test the C batteries by putting them back in and pull the CR2032.

Thanks again.!!!
Bob

Re: Batteries?

2018-01-08 by vignesro@...

Thanks Guys.

I'll try again once more to use my laptop. I'll try Jan's method of starting with no volume and slowly raising it until the Poly800 starts flashing a bit. Then restart using that volume setting.

I'll let you all know how I make out.

Thanks

Bob

Re: [korgpolyex] Re: Batteries?

2018-01-08 by Steve Daniels

I’ve been able to get it to work using my iPhone headphone output.

Remember that the Poly has a switch on the back for low or high volume input to the data jack. You may want to try that in different settings as you’re raising your volume.

Also, if you can use a stereo-to-mono, 1/8 inch cable, you’ll have more luck. The Poly’s data input jack is a mono jack.

Steve

On Monday, January 8, 2018, 1:21 PM, vignesro@... [korgpolyex] <korgpolyex@yahoogroups.com> wrote:

Thanks Guys.

I'll try again once more to use my laptop. I'll try Jan's method of starting with no volume and slowly raising it until the Poly800 starts flashing a bit. Then restart using that volume setting.

I'll let you all know how I make out.

Thanks
Bob