Yamaha Dsp Z9 switching off

[Anonymous]

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

 

[moomin]

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?

 

[Anonymous]

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

 

[Anonymous]

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

Btw, am from northern ireland.

 

[Anonymous]

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.

 

[moomin]

Hi there,hope you get it sorted ,i spoke to yamaha rep at the show and got a name of some one at yamaha to speak too so i will be doing this,i have been leaving my amp on and dimming the display when not using it and it never turns off now ,i would suggest doing this as my friend who runs a hifi home cinema store recommended this as it keeps the amp warm all the time hence sound quality is at its optimum all the time,im convinced its to do with a over heating sensor ,when the amp is turned off and cools down ,then is turned on,in the process of warming up the heat sensor is faulty and in turn switching the amp off as it thinks its starting to over heat,il let you know how i go with pressing the pure direct button,regards Andrew

 

[Anonymous]

I really hope this is all that the problem is a heat sensor, fingers crossed then it won't be big bucks, yamaha UK said they will do a free assessment on the amp, i liked to think so, these amps aren't run of the mill, to get an amp of this quality your talking five grand for HDMI and DTS losses and DD-HD and perhaps depending on choice of amp 11 speakers instead of 9.

Yeah the pure direct button is on the left hand side asyouknow and am sure he said press it twice when the amp is on stand by or in menu mess around with it to see.

 

[Anonymous]

Update,

Yamaha UK have received my yammy Z9, turn around for this to get looked at is around 10 to 14 days.

 

[moomin]

Good Luck my friend,keep me posted,im sure Yamaha Uk will sort it out,they seem a very helpful and switched on company from my experience.

 

[Anonymous]

Hello Guy's

I'm from Holland so if my English is not 100% I'm
sorry.

I also own a dsp-z9 having the same problems as you.
So there's probably a lot more than 4 troublesome DSP's.

Keeping it on (and working fine) proves that it's a
cold start problem I think. It will contribute to a large electrical
bill I think.

Paying such a lot of money should get us a proper
working machine. I read about us not having USB to update the
firmware.

We do have a RSR 232C on the back, this could be a
way to update? I worked at Siemens for a while and am a bit
technical.

What a did so far was clean the inside and check for
shorts visible with the eye, especially near the speaker outlets
because of "check SP-wiring" but found nothing.

At one time the amp turned off so fast it hardly went
on at all. After cleaning it stays on at least a second before
turning off, this gives me time to fool around with the input
selector. Putting it on a analog input gives me good result in
combination with a low volume.

Also I'll try to find the extra service menu's as you
suggested and keep you posted if it brings anything. Still it's very irritating and hope you 2 find out whats wrong, I'll keep reading.

b.t.w. What irritates me most is that Yamaha doesn't
post this "general" problem on their site asking people to bring
in the amp and get it fixed (for free) as it is clearly a
fabric-fault

Regards

Guido

 

[Anonymous]

Hello,

My DSP-Z9 amp is getting fixed, by sometime 1Q - 2010.

I spoke to the engineer myself and the fault with the sound not outputting is with a DSP PCB board.

Now i asked the engineer will this fix the amp and he said yes, so am totally guessing here but the amp switching on and off was due to a faulty DSP PCB board. Cause its like this, before that amp comes back i will be asking him was the reason for the amp switching on and off due to the faulty DSP PCB board, if he cant say thats the reason well it aint coming back untill it gets a reason, he might just say that the faulty board was being detected and the amp was switching itself off, which would stand to reason that my amp got that bad it just stopped out putting sound.

The cost of the part being replaced has to be ordered in from japan is around £400 so that figure will most likely be higher.

I told the engineer that there is atleast another four DSP-Z9 amps out there that have had or still have the same problem has mine, get this he said, "that make has been a very soild model". which would clearly not add up.

If you want my opinion, if this was a harddrive out of 1000 sold if 10 had a fault it wouldn't be silly, then again a harddrive doesn't cost 3 grand, but each part of the yamaha DSP-Z9 bluids up to 3 grand amp so if a part fails after 5 years, the probability of a few of these amps coming back with a broken part it is within reason.

But if it is in warrenty your in luck, yamaha can not guarantee the amp to be working after 3 years, there is a Mean Time Between Failures (MTBF) and thats the short end of the stick us few have got.

The engineer will phone me back when the part arrives.

 

[moomin]

yes hope it gets fixed,still leaving my on and its been fine so far,keep me posted.

 

[Anonymous]

Good news!

My DSP-Z9 has been fixed and is being shipped back to me and i should have it sometime next week.

Total Cost: £530:00 - There is a 3 month warranty

Also am getting the part that broke sent along side the amp so i will post a picture of the PCB board here and all the details.

I also asked the engineer for details on how to access the diagnostic menu/service menu, he wasn't allowed to give that information out.

But its might be one of these methods below.

Amp on stand by press pure direct twice switch am on and enter diagnostic menu

Switch amp off Hold Balance & Tone control buttons and switch amp on and enter diagnostic menu

 

[Anonymous]

Got the amp connected and is working

And the below method is correct

Switch amp off Hold Balance & Tone control buttons and switch amp on and enter diagnostic menu

Total was not £530 that didn't include the VAT £622 was the total!

PCB board is very small and blue in colour one of the chips says winbond on it, 8 chips on each side with what appears to be three ribbon connections on one side to connect it all up, most chips on this are by yamaha amazing the small size for the cost also along one side it reads "yamaha digital Cinema DSP "and is called a [SD134175] for DSP-Z9

 

[moomin]

hi ,glad you got it sorted,mines been fine as i leave it switched on now,il proberly wait and spend the money on a second hand dsp z11 in a while ,have you got a bluray player connected to your amp via analouge connections i.e 5.1 or 7.1?

 

[Anonymous]

Hi,

Still no blu-ray conencted has of yet, but i will be upgrading the sound card in my HT-PC to 7.1 at a later stage.

Apparently the Z11 sound isn't has good has the Z9 going by a post someone made on a review and they went back to a Z9, although i would find it interesting that anyone would sell a five grand amp already.

PCB - [SD134175] for DSP-Z9

PCB - [SD134175] for DSP-Z9 - FRONT - http://img407.imageshack.us/i/39932529.jpg/

PCB - [SD134175] for DSP-Z9 - BACK - http://img191.imageshack.us/i/20413832.jpg/

PCB - [SD134175] for DSP-Z9 - BACK Close Up http://img19.imageshack.us/img19/8555/37856447.jpg

 

[simonlewis]

moomin, can i have my avatar back please!!

 

[simonlewis]

Thank you andrew, if moomin had done that in the first place i wouldn't have complained.

 

[Anonymous]

 

[Anonymous]

I had the same problem,,but its fixed now after i tightened some screws on the pcb mounting,,i found a Yamaha service report on "PSI Protection fault" showing which ones to tighten,,its the screws on the back panel inbetween the speaker posts,,Cheers

 

[moomin]

hi there,can i access that from the back off the amp or does it need taking apart?

 

[Anonymous]

you just need to tighten the screws between the speaker posts on the back,,no need to remove anything,,it will take you 2 minutes

 

[Anonymous]

THANK YOU Duckegg! This fricken thing has been driving me crazy for years. I has same as previous guy, would work if I left it on....so I did. Eventually problem got worse and worse. I finally pulled it from the cabinet and replaced it with my RX-V1 which the Z9 originally replaced. That was about 3 years ago. I finally got a bug up my *** and I decided I wanted the Z9 back. TOday I tore it apart, pulled the power supply and resoldered all of the connections, cleaned up the relays and still no dice.......in fact got worse. Until now when I found your post. I tightened up all of the screws on holding in the speaker boards on the back and now it seems to be working.

I went three years without this thing over a few loose screws!!!!!!!! Oh well, I sure hope this works.

Thanks again.

 

[Anonymous]

Back from the future...

Yamaha DSP-Z9 has to go to Yamaha UK once again.

Fault this time is that the volume works fine then after the Amp heats up to a certain point, the sound all goes to the back channels and then outputs only to the front left.

And to makes things worse it goes very loud which isn't a good thing lol

Also i own a yamaha DSP-A3090 which also too has to go back to get fixed the left channel outputs at a very low volume.

Stay tune for more and hopefully ill get speaking to the tech guy soon!

 

[Anonymous]

Yamaha Z9 amp back and working!

Capacitor problem causing an Earthing Issue, simple replacement, only £42 dabs this time!

Monday 19th December 2011