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Yeah i would be interested big time, much appreciated. :)

 Something me and my bro tryed was to try and change the input source quickley before the amp would switch off, not sure if that actually worked...

 So am 99.9% sure this problem is to do with the input optical board, i could be way off.

i dont think its to do with the input source,its to do with when its cold ,when i turn it on you normally wait for the click then it turn off,ive tryed turning the volume right down before you turn it off ,then turn the amp on the next day from cold wait for it to warm up then turn up the volume ,that currently works,also switch the mains off first before for 30 seconds first,i just think the amp needs the equivelent update as the z7 but am unable to do this via internet or usb stick as we dont have that option,let me know how yours going on

Well the problem with my amp is that it would do it from cold or after it's been on for hours, but not every problem is the same.

What does the extra menu function do on the Z9, what buttons do i press?

Equipment	SEP AMP
Make	YAMAHA	Model	DSPZ9
Status	Under Repair
Date Status Changed	2/Sep/2009
Your faulty item is currently being worked at by one of our engineers   Will fnd out what was wrong with it and post back!   any word on how to access the diagnostic menu on the Z9 ?

Can't quite remember what buttons as I haven't beenhome for a while. If you open the front flap on the right hand side you have two small buttons one is the balance and the other I think tone controls ,turn the amp off and hold those two small buttons down then turn the ampon stillholding them down un till a menu screen appears. On your tv and on the front panel, then navigate yourself through the menus , let me know how your amp goes on and how you get on with menu when you get it back

Thanks, i will try that once i get the amp back am going to phone theyamaha repair center later, i can check online the progress but little information so far, so i'll find out, its been buggin me for well over a year now, "damn amp switching off" am going to miss that comment, NOT!

Equipment	SEP AMP
Make	YAMAHA	Model	DSPZ9
Status	W.F. Technical
Date Status Changed	14/Sep/2009
We are waiting for technical information to help us progress your repair

Well this is the latest but not the greatest news, they don't know whats wrong with it, well thats what am taking from it, so when you walk in to the repair shop someday moomin you can show off and tell them, yeah you know i think it might be a fault with such and such, eheh :)

 

I'll keep ya posted.

hi Matey,sorry to hear your still awaiting the outcome on your amp,mine is still playing up once you first turn it on,after about an hour it stays on no problems,im tempted to keep it switched on and dim the display down when im not using it ,there is an option system boot in the menu along side factory preset which ive already tryed so i might give that option a go so it actually reboots the amp as apposed to resseting it soley back to factory settings,the problem sounds like the same one they were having with the Yamaha Dsp Z7 which they have now a software update for,shame we cant do the same to ours,its such a superb performer the Z9 i want to keep it ,ive always had yamaha av amps and have been impressed so dont wan to change brand,let me know when you find out any more .

Any more news on your dsp z9 getting fixed,i have been leaving mine on and dimming the display when im not using it and it appears to be fine doing this .

Any more news on your dsp z9 getting fixed,i have been leaving mine on and dimming the display when im not using it and it appears to be fine doing this .

Update... i haven't forgotton just nothing yet from the last time but for now the status has changed, they must have got tech help but rest assure i will be asking many questions to the engineer about what was wrong with the amp and what was fixed about it, hopefully it won't be long now!

 

There might have been a software update for this amp too, so i will be asking if he did a software update etc 

 

Make YAMAHA  Model DSPZ9 
Status Under Repair 
Date Status Changed 9/Oct/2009
Your faulty item is currently being worked at by one of our engineers

Yes keep me posted and hope it gets sorted soon. , I've been leaving it on and it seems ok , hasn't switched off in a month so the problems from cold defo, you going to Manchester show?

Hello,

Well well, the amp is still not fixed it will have to go back to Yamaha UK the DSP-Z9 is very technical and will be only fixable by Yamaha UK.

I spoke to the engineer and he explained what he tryed, he didn't touch anything inside the amp because of the forementioned situation.

He did try a factory reset which didn't fix the problem, (press pure direct twice) to enter diagnostic menu, I'll check that and ask the engineer when am down to pick it up the week after next thats what he said on the phone press pure direct twice so if you can try that moonmin and see if that gives you a different menu? from holding the tone controls and balance and switching amp on which you suggested.

When the engineer ran the self diagnostic test on the amp he did pick up a fault which he reported to yamaha and they didn't seem to concerned about, am thinking that from what he said that there is a few processors in the DSP-Z9 and that the fault showed up from one of them, so its looking like a processor fault but tracking it down is the problem and wouldn't be economical to replace all processer to get the right one and Yamaha UK can run the tests, they also have the proper tools to use.

He did manage to test the power supply which was fine and also managed to get sound to output from the amp not in the normal way at the output stage.

So am going to be sending the amp back in a box which am hoping to get a good one at that and then i have something in the pipeline to send it back for little cost.

Have emailed Yamaha UK and explained to them the problem going to ask them if i need a RMA number and am getting the address from Craigavon TV Centre.

I'll keep posting here till i get it fixed!

Regards,

Niall Mcc

No i wasn't in manchester, was there some show on?

Btw, am from northern ireland.

For the record this is now the fourth time that i have came across a faulty DSP-Z9.

My amp 1 the chap here 2 on another forum someone elses was switching off and on 3 and on the same other forum the other person got their amp replaced 4

And my DSP-A1 amp that i gave to my brother is doing the same thing.