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Hi PeWe, Op zo 5 feb. 2023 om 11:46 schreef PeWe <ha-pewe@...>: You have more experience here than me but this is also my experience. Only once have I had to do a recap of a power supply, and

If you have to replace a bad cap on a PCB...., what makes you think that the other ones, with same age and build quality, are in perfect working condition? In my experience, replacing all capacitors,

On Feb 4, 2023, at 5:31, José Juan wrote: "Electrolytic capacitors are dead on most 80s Yamaha Roland Korg gear." From reactions from some of the more experienced experts here I think I can conclude

Hi Daniel ! I agree 100%! Since my friend (tech) and me started to do inhouse repairs and service for all my gear many years ago, we never ever had to replace ALL capacitors in any machine,

Here is that alternative version together with patch names: http://silence.no.free.fr/Synth/ <http://silence.no.free.fr/Synth/> Daniel Forró

You can find Eprom data also here: http://dbwbp.com/index.php/9-misc/37-synth-eprom-dumps <http://dbwbp.com/index.php/9-misc/37-synth-eprom-dumps> If it doesn’t work, I can send you it as

I should have included some sound samples in my first post because they make it clearer what is going on. Let me post them now. Here is the sound of an init

José, the caps on my TX802 all look like new. No bulging, no leaking. There would be nothing to see in a photo. That does not mean they are all still good though. That 1.5V ripple is not supposed to

"I will recap the PSU." -> essential *starting point* imho. Please take photos of retired bad caps. Here you can see what I found on my

Thank you John! I wouldn't say I'm fighting a problem: I'm trying to solve an interesting challenge. For me this is fun. Grant, thank you for insisting on looking at the PSU. I took a closer look

I thought I would write a quick note of encouragement for Jacob. I’m sorry you’re fighting such an odd problem, but as someone who reads the list, I appreciate your posting the details. This is a

Hi Grant, Op za 4 feb. 2023 om 14:54 schreef grantpbt <grantbt@...>: I am not dismissing Daniel's input, I am reacting to his suggestions. I really appreciate that Daniel refers to actual

Two things to avoid: dismissing input from Daniel Forro and making assumptions. This is first and foremost electronic troubleshooting. Check all the Power Supply voltages. I have seen an increasing

Op za 4 feb. 2023 om 03:44 schreef Daniel Forro <danforcz@...>: I have re-seated them, if that is what you mean. I have an EPROM reader so I could read their contents and compare the checksums

Op za 4 feb. 2023 om 03:39 schreef Daniel Forró via groups.io <danforcz@...>: I'm with Daniel on this. I have no trouble replacing capacitors myself but I don't want to solder and

Op za 4 feb. 2023 om 05:12 schreef raj juggapah <rajdata01@...>: Could we move this discussion to its own thread? It has nothing to do with the TX802 problem this thread started with

Hi Brian Good to hear fron you as well For sure am with you and the group as this keyboard is here to stay for the next century for sure !! I will send the display messages Thanks for your

Many Thanks Daniel Hints are perfect Display When I select cartridge ...it says.........not ready which is fine as I did not insert the cartridge. Back on normal it says something which i will

I was about to say the same thing almost .. more information please Raj, what do you have on the display for a start? Good to hear you’re still with the group Daniel, funny, I was just thinking

It can be anything, your description is not enough to do proper diagnostics. Is it totally dead, no display? Start with checking fuses, PSU voltages, replacing bad electrolytic caps in PSU,