Search found 475 matches

by WhinyLittleRunt
Thu Sep 13, 2018 9:48 pm
Forum: HELP!
Topic: Jupiter 6 - Master Tuning issue
Replies: 18
Views: 9512

Re: Jupiter 6 - Master Tuning issue

DNLSCL wrote:Same problem with my Jupiter 6!
Any ideas on how to solve this?
Stupid broken Europa mod that no longer has any support... I believe I fixed mine by fully resetting Europa, but I don't have it anymore so I can't remember the process.
by WhinyLittleRunt
Thu Sep 13, 2018 2:18 am
Forum: HELP!
Topic: Prophet T8 CPU glitch? Video link included
Replies: 7
Views: 3444

Re: Prophet T8 CPU glitch? Video link included

So here's where I am at with the T8 and this problem: I really think it's the Z8002A processor. I originally checked the power supply to confirm the voltages were correct. Everything is good there. However, I did not check the power rails on the board itself when the problem started; I kept a meter ...
by WhinyLittleRunt
Wed Aug 15, 2018 8:50 pm
Forum: HELP!
Topic: Prophet T8 CPU glitch? Video link included
Replies: 7
Views: 3444

Re: Prophet T8 CPU glitch? Video link included

That's ok... I used Freeze spray on the offending CPU to see if that changed anything but it didn't. I'll keep poking around.
by WhinyLittleRunt
Wed Aug 15, 2018 2:49 am
Forum: HELP!
Topic: Prophet T8 CPU glitch? Video link included
Replies: 7
Views: 3444

Prophet T8 CPU glitch? Video link included

https://www.youtube.com/watch?v=h6nrr2EJSkw&feature=youtu.be I've included the issue and also I'm showing what happens when you hit the tune switch. Then just a general overall pan of the CPU and voice card boards. So recently, another issue cropped up where as the synth warms up, I suddenly only g...
by WhinyLittleRunt
Sun Jul 29, 2018 3:10 am
Forum: General Synthesizers
Topic: Sound City Phaser Piano... ever seen one?
Replies: 5
Views: 2816

Re: Sound City Phaser Piano... ever seen one?

Mooger5 wrote:It´s a rebadged Jen Pianotone.
Seems like it was a rebadged Vox piano also... wow. So this thing has been around the block as a generic analog piano....

The flanger piano might be cooler... if anything else, curious to know what chips are doing the flange...
by WhinyLittleRunt
Thu Jul 26, 2018 5:02 am
Forum: General Synthesizers
Topic: Sound City Phaser Piano... ever seen one?
Replies: 5
Views: 2816

Sound City Phaser Piano... ever seen one?

I picked this up at an estate sale last weekend... $15. https://farm1.staticflickr.com/913/43593781261_d5f94c3c13_z.jpg https://farm1.staticflickr.com/939/42689152545_bb7c42ceba_z.jpg https://farm1.staticflickr.com/934/43593780021_9b47b2acd7_z.jpg Yeah, it's nothing special, it's a divide-down organ...
by WhinyLittleRunt
Wed Jun 27, 2018 2:42 pm
Forum: General Synthesizers
Topic: Your latest musical purchase
Replies: 154
Views: 198553

Re: Your latest musical purchase

Kashito91 wrote:Yep. It's complete too... Back panel; paperwork and all
Wow, no way... I remember peeling through that Novachord restoration page years ago and seeing the amount of work needed to get it going... good score man.
by WhinyLittleRunt
Wed Jun 27, 2018 2:41 pm
Forum: General Synthesizers
Topic: Your latest musical purchase
Replies: 154
Views: 198553

Re: Your latest musical purchase

Here's my latest, $200 Smokin' Deal... https://farm2.staticflickr.com/1827/28143170857_c688f7795a_z.jpg https://farm2.staticflickr.com/1772/28143170657_b50f48bc47_z.jpg https://farm1.staticflickr.com/883/28143170637_015e8a2419_z.jpg Needs to be tuned and some random OCD things fixed, but it is in ot...
by WhinyLittleRunt
Wed Jun 27, 2018 2:36 pm
Forum: General Synthesizers
Topic: Your latest musical purchase
Replies: 154
Views: 198553

Re: Your latest musical purchase

Wow... Novachord. Is it fully functional?
by WhinyLittleRunt
Tue May 22, 2018 4:38 pm
Forum: HELP!
Topic: Bought a Prophet T8... how alone am I?
Replies: 10
Views: 4894

Re: Bought a Prophet T8... how alone am I?

That's not a bug- it's a feature. Yeah, I think I was able to finally understand that now that I've gotten to play with it a while. I was actually going to post an update on the issues I am having with it still, though they're not deal-breakers. Just wondering what could be causing a couple things:...
by WhinyLittleRunt
Sun Oct 15, 2017 1:39 am
Forum: HELP!
Topic: Prophet T8, repaired pop noise - but overall sound too hot?
Replies: 7
Views: 1911

Re: Prophet T8, repaired pop noise - but overall sound too h

At the risk doing more damage but realizing it doesn't work anyway, I decided to pull the 2 op-amps (LF356N and 353N) on the output board and the CEM3360 VCA. Powered on, got nothing. No hum, no feedback. Ok, good. I put the VCA back in, powered on. Works! Get sound, everything works it's just fairl...
by WhinyLittleRunt
Sat Oct 14, 2017 9:28 pm
Forum: HELP!
Topic: Prophet T8, repaired pop noise - but overall sound too hot?
Replies: 7
Views: 1911

Re: Prophet T8, repaired pop noise - but overall sound too h

don´t you have the schematic ? Make sure you choose the correct reference points. Chassis will not work as a ground reference here. Apart from the regulated voltages the PSU also makes the unregualted DC of both rectifiers available at the connectors. that would explain your 49V. br Arne I do have ...
by WhinyLittleRunt
Mon Oct 09, 2017 2:06 am
Forum: HELP!
Topic: Prophet T8, repaired pop noise - but overall sound too hot?
Replies: 7
Views: 1911

Re: Prophet T8, repaired pop noise - but overall sound too h

I still haven't gotten around to recording a good sample of the T8 for comparison... Last night I re-capped the voice cards and found no difference. I wasn't really expecting one, but it was worth it to me to change out 32 aging caps. Tonight I decided to finish the recap with the power supply. That...
by WhinyLittleRunt
Sat Sep 30, 2017 1:22 pm
Forum: HELP!
Topic: Prophet T8, repaired pop noise - but overall sound too hot?
Replies: 7
Views: 1911

Re: Prophet T8, repaired pop noise - but overall sound too h

I replaced everything on the output board... A complete re-cap is in order, I had already replaced the caps in the funky voice but I noticed the caps they used originally all have different markings and look like they face all different directions. I’m pretty sure if I do a connectivity test between...
by WhinyLittleRunt
Sat Sep 30, 2017 6:15 am
Forum: HELP!
Topic: Prophet T8, repaired pop noise - but overall sound too hot?
Replies: 7
Views: 1911

Prophet T8, repaired pop noise - but overall sound too hot?

Just an update to my Prophet T8 - I was having issues with two things, one being that the overall sound seemed overdriven, and two, there was a static "pop" coming from somewhere that would appear in every couple notes, or so it seemed. I was able to track down the pop to voice 4 on the left-side bo...