Dead triton extreme 76 . Everything works but no audio out

zappacat · Post by **zappacat** » Thu Dec 16, 2010 12:18 am

No audio out from either headphones or analog outputs1-4. I don't have stuff to test optical out. Would it be possible that could work? What's the simplest cheapest way for me to test that? It mentions that you can hook up an optical cable from input to output to test spdif in the manual. Would this actually tell me if the instrument was sending out musical data?

So far I've done:

- factory reset (machine has OS version 1.5 installed)
- run diagnostic mode and it passes everything
- pulled the motherboard and detached / reattached all cables
- reseated the sample RAM (only 16 meg)
- set the device to 76 key model (it was on 61 when I got it) thought it was going to be easy.
- made sure midi mode is set to trigger internal voices( i think )
- when i hook it to my PC via USB my computer sees it as a triton extreme.
- I can use it as a midi controller for B4 , Pro 53 , and Reason so I know the midi output is working.

I need some information about the the power supply output voltage levels. I ordered the "factory service manual" off the web and it didn't help me much. In fact I question if it really is a factory service manual. I'm assuming at this point that the main board is fried but if there's anything else I should try please let me know. I guess it's cheaper to buy a used triton extreme 61 that works than buy a new motherboard(if necessary). Please help me fix this board.

Thanks in advance, any help greatly appreciated.

Kontrol49 · Post by **Kontrol49** » Thu Dec 16, 2010 5:43 am

I can use it as a midi controller for B4 , Pro 53 , and Reason so I know the midi output is working.

Have you checked that the "Local Control" is switched on in the global menus,

zappacat · Post by **zappacat** » Thu Dec 16, 2010 6:19 am

Kontrol49 wrote:
I can use it as a midi controller for B4 , Pro 53 , and Reason so I know the midi output is working.

Have you checked that the "Local Control" is switched on in the global menus,

Yes, local control is on in the global menu. Sorry I forgot to mention that in the original post.

It seems odd to me that the entire set of diagnostic routines complete without errors if the main board is fried. It almost appears to me that the audio amplifier section of the triton extreme is integrated into the main processor board of the synth. If this is true and my audio amp chips are fried the only solution would be to buy a new main board. Am I on the right track here or am I missing something?

With the price of a used triton extreme in the $600 range would I be better buying one of those and scavenging the board from it versus paying $900 for a new main board?

Is there more than one hardware revision of the triton extreme main boards?

I forgot to mention that when I power the unit on with headphones on and the synth volume up I can hear something kicking on through the headphones like when you turn on or off a guitar amp. It's pretty faint but it's there.

I think my next step is to install operating system version 1.6 from the CF card and hope that something is corrupted in the existing OS. Any tips on doing this would be greatly appreciated.

Thank you

zappacat · Post by **zappacat** » Thu Dec 16, 2010 9:52 am

Fresh 1.06 installed and still no sound. Anyone want to buy it?

Kontrol49 · Post by **Kontrol49** » Thu Dec 16, 2010 4:03 pm

I always thought the diagnostics function checks the performance of the Audio outputs???if the board was fried surely there would be an error log!!although I'm not sure if these actually inform you the audio outs are not working correctly normally these diagnostics just simply check the functionality rather than fault find and diagnose a problem which is where your service manual would fall into place

I'm not gonna insult your intelligence by saying is the Volume slider at max,have you tried routing the sounds to the individual outs as well to see if there is any sound coming from those,do you get any noise/Hiss if you turn the Valve on from the headphone or main outs???seeing as you've already checked the internals can't be a loose or unconnected ribbon cable to the audio out board

Have you tried doing a reset,using Enter and 0,whilst powering on this will initialise the Triton

normally if you install an New OS, if the machine doesn't receive the update correctly it could screw up the system,usually this can be remedied by reloading the OS again.although it could do irrepairable damage to the IC as was the case for the Roland JP8000 in that if the OS upgrade went wrong it had to be fixed by Roland

OS V1.06 for the Extreme Is only intended for those who have the moss board installed,if you don't have that then you should only be using 1.05

Can't really suggest anything else other than I'd contact Korg USA for further assistance.

zappacat · Post by **zappacat** » Thu Dec 16, 2010 7:52 pm

Kontrol49 wrote:I always thought the diagnostics function checks the performance of the Audio outputs???if the board was fried surely there would be an error log!!although I'm not sure if these actually inform you the audio outs are not working correctly normally these diagnostics just simply check the functionality rather than fault find and diagnose a problem which is where your service manual would fall into place

I'm not gonna insult your intelligence by saying is the Volume slider at max,have you tried routing the sounds to the individual outs as well to see if there is any sound coming from those,do you get any noise/Hiss if you turn the Valve on from the headphone or main outs???seeing as you've already checked the internals can't be a loose or unconnected ribbon cable to the audio out board

- Volume slider = max
- no difference in audio signal when switching valve ON
- I don't know how to route the signals to separate channels
- I guess at this point I need to take an even closer look at the cables.

Kontrol49 wrote:Have you tried doing a reset,using Enter and 0,whilst powering on this will initialise the Triton

Yes, so far I've done this procedure > 20 times

Kontrol49 wrote:normally if you install an New OS, if the machine doesn't receive the update correctly it could screw up the system,usually this can be remedied by reloading the OS again.although it could do irrepairable damage to the IC as was the case for the Roland JP8000 in that if the OS upgrade went wrong it had to be fixed by Roland

Well, I'm assuming that nothing went wrong. Everything seemed to be working correctly EXCEPT for the audio out. Since the machine had 1.05 on it when I got it I decided to update the OS to the latest revision. I thought this would eliminate the possibility of a botched OS install attempt contributing to the "no audio" problem + I USUALLY put the latest OS / firmware on all my electronic stuff for bug fixes.

Kontrol49 wrote:OS V1.06 for the Extreme Is only intended for those who have the moss board installed,if you don't have that then you should only be using 1.05

Are you suggesting that I revert to 1.05 ? It didn't mention anything on the Korg site about the OS V1.06 being dedicated to MOSS board users ONLY. I just checked that again and it mentions NOTHING about this. Is it in the PDF file that comes with the download or something? I rechecked the file archive that I downloaded from KORG and there aren't any supplementary documents accompanying the 1.06 OS files. Where did you get this information about 1.06 being only for MOSS users / owners?

Kontrol49 wrote:Can't really suggest anything else other than I'd contact Korg USA for further assistance.

I already have. They say they are backlogged on repairs for months and said that I should take it to one of the local service centers. After doing a little phone work I found the cheapest quote I could get a local factory authorized service center was $200 to look at it. I've had bad experience with local "service centers" here in the midwest. MOST are rip-off artists and I say this with a substantial history of dealing with them. To be honest, the Korg tech support people weren''t very helpful or friendly. It sounded to me like they thought I should just get a new synth.

synthjoe · Post by **synthjoe** » Thu Dec 16, 2010 8:32 pm

I wouldn't mind buying it at a reasonable price - but shipping will be probably irrational as I live in Europe...

Is it the 61 or the 76 keys version? Do you have a flight case?

maxextreme · Post by **maxextreme** » Thu Dec 16, 2010 8:43 pm

Zappacat Hello, after reading all ... I think I understood that it is not a simple problem to solve. The only evidence left is that you try the digital outputs with some suitable device, to see if the problem is on the output stage (final) or in the audio before the DA conversion. However, you may wish to entrust to an extreme technical service center or, if you are not of the trade. It could be some dry electrolytic capacitor around the output stage audio section or that of the conversion, even if you do not have a wiring diagram you should try to remove any electrolyte (once you have found the audio section) and make measurements with a capacitance by solving the problem with a little patience and little expense.

zappacat · Post by **zappacat** » Thu Dec 16, 2010 9:12 pm

synthjoe wrote:I wouldn't mind buying it at a reasonable price - but shipping will be probably irrational as I live in Europe...

Is it the 61 or the 76 keys version? Do you have a flight case?

It's a 76 and I don't have a case for it.

Thanks

synthjoe · Post by **synthjoe** » Thu Dec 16, 2010 10:21 pm

zappacat wrote:It's a 76 and I don't have a case for it.

Thanks

Oooohhh... The perfect size. Shame for the case.

Grapite · Post by **Grapite** » Thu Dec 16, 2010 10:29 pm

zappacat,
If all of the keys and everything else are all right, PM me with a price, I'm in the states
Regards

Kontrol49 · Post by **Kontrol49** » Sat Dec 18, 2010 10:04 am

zappacat wrote: Are you suggesting that I revert to 1.05 ? It didn't mention anything on the Korg site about the OS V1.06 being dedicated to MOSS board users ONLY.Where did you get this information about 1.06 being only for MOSS users / owners?
.

Korg UK support Site

http://www.korguksupport.co.uk/page.cfm?pageid=349

Operating System Version 1.06
This is a small adjustment for the Extreme. When the Convert Position parameter in Global Mode was set to Post MIDI, Transpose values in Global Mode worked incorrectly for MOSS voices. This has now been fixed.

Users without the MOSS board fitted need not apply this version.

X-Trade · Post by **X-Trade** » Sat Dec 18, 2010 10:20 am

Kontrol49 wrote:
zappacat wrote: Are you suggesting that I revert to 1.05 ? It didn't mention anything on the Korg site about the OS V1.06 being dedicated to MOSS board users ONLY.Where did you get this information about 1.06 being only for MOSS users / owners?
.

Korg UK support Site
http://www.korguksupport.co.uk/page.cfm?pageid=349
Operating System Version 1.06
This is a small adjustment for the Extreme. When the Convert Position parameter in Global Mode was set to Post MIDI, Transpose values in Global Mode worked incorrectly for MOSS voices. This has now been fixed.

Users without the MOSS board fitted need not apply this version.

Yes, but that doesn't actually say that any harm can be done by installing it. Its just saying that it won't do anything for you if you don't have MOSS.

I know it sounds fairly obvious (and I'm sorry if its already been mentioned), but in every Korg device I see, the global parameter is 'Local Off', which needs to be 'Off' in order to hear sound. You turn 'Local Off' 'On' to bypass the sound engine. A bit confusing with those double negatives etc I know.
But I would have thought a reset would have covered this anyway.

To test the alternate outputs, you need to go to the IFX Bus page. There you can select where the timbre or program goes. Just change it from IFX1 or L/R or whatever it says to '1/2' or '3/4' (don't know how many alt outs the TEx has). Trying the digital output I agree would also be a good step.

Post by **Sharp** » Sat Dec 18, 2010 10:51 am

I know it sounds fairly obvious (and I'm sorry if its already been mentioned), but in every Korg device I see, the global parameter is 'Local Off', which needs to be 'Off' in order to hear sound.

Exactly, it must NOT be ticked and that means the "Local OFF" is ON, which means no sound.

Regards
Sharp.

Kontrol49 · Post by **Kontrol49** » Sat Dec 18, 2010 2:10 pm

Sharp wrote:
I know it sounds fairly obvious (and I'm sorry if its already been mentioned), but in every Korg device I see, the global parameter is 'Local Off', which needs to be 'Off' in order to hear sound.
Exactly, it must NOT be ticked and that means the "Local OFF" is ON, which means no sound.

Regards
Sharp.

Guys,There's some confusion here as to how the local control options work in global menus

Korg devices(in this case the Triton Extreme and just about every other Korg device I've ever owned) Use a "Local control" option which by default(uses a tick in the Tritons/Trinity,Red Square box on the Oasys)needs to be ticked which switches the Local control on allowing you to play the internal engine("on")

(not ticked,this is the local control off which will produce no sound from playing the Extreme's keyboard )

Switching it off(not ticked) as suggested will disconnect the internal engine from the keyboard.Which was why I already suggested switching it on in a previous post as the device was not giving audio which is always the first port of call if I get no audio from playing a device

Maybe some other manufacturers use a Local off Option which by selecting it on will disconnect the keyboard or controls from the internal engine,but I've never seen a Korg instrument which implements it in that way

A reset or OS update would switch the Local back on as its "on" by default