View Full Version : yamaha a-s2100 dream/repair
hi all
i decided i was after a nice jap design integrated amp(renowned for there reliability) after 30 odd years odd of "british" and the "weird and wonderful"type amps that i usually buy.
was going to settle on something low in the chain,liked the look of the cheaper yamaha a-s range and even had one in the past and knew there sound was to my liking,anyway to cut a long story short i ended up with a yamaha a-s2100 for a good price,or so i thought.
the one issue for getting it so cheap was it isnt working and stuck in protection mode:rolleyes:....hey whats life without a gamble or two.
anyway for those that know these amps know they have a self diagnostic and reset solution,alas the reset option never panned out,didn't think i would get that lucky so i went into the diagnostic set up and it seems to be showing the two flashing blinks....code for ps protection.
so off with the lid and....jesus...its a jungle in there and has some serious ps caps,i managed to download the service manual and that has maybe made realise i may be slightly out my depth regarding going in and having a play:lol:
my main problem is that im right down in penzance and i cant find anyone here who will touch it,so my first question is does anyone know of anyone who may be able to help me out within cornwall,it may not be working and i may of only had it 2 seconds but ive already adopted it as a pride and joy and would like to get it sorted.
failing that ive been in touch with the two yamaha service centers that yamaha gave me(no replies from them as yet but i cant see them being that cheap or caring) but there way up country so posting etc is going to be expensive and dodgy....cant see a courier showing a 25kg massive box much love when in transit and although i have the original box the original packaging is useless and broken.
im open to any or all solutions regarding my delima and getting this sorted so any help and ideas would be much appreciated.
my last option if i get no joy is going to man up and have a go myself....gulp:D,did i mention it was my pride and joy!!
regards
smithie
Audio Al
29-04-2019, 14:55
Just looked this up and its a very sexy looking unit , As you live at the end of the UK looks like you will be doing it yourself , When you say CHEAP how much was cheap ?
yeah im guessing thats the way its going to go,but thought i would fire it out here first:)
this can of worms has cost me £400 and was local to me for pick....seemed cheap at the time:lol::lol::lol:
regards
smithie
Audio Al
29-04-2019, 15:08
£400 :eek: Cough splutter Cough :stalks:
It will be a result if you can revive the unit :)
Pieoftheday
29-04-2019, 15:15
yeah im guessing thats the way its going to go,but thought i would fire it out here first:)
this can of worms has cost me £400 and was local to me for pick....seemed cheap at the time:lol::lol::lol:
regards
smithie
How about RussAudio Camborne? I've not used them but boasts over 40 years experience :)
I love the look of Yamaha gear - cool, elegant, stylish in a Bauhaus sort of way. They sound pretty good as well.
https://europe.yamaha.com/en/files/F2D8582BA6194264B688791D6B6D94AD_12073_735x735_fd4 079fd74569d4eb4fb41d022a38437.jpg
https://europe.yamaha.com/en/products/audio_visual/hifi_components/a-s2100/index.html
Hope you can get it sorted out without too much inconvenience and expense.
How about RussAudio Camborne? I've not used them but boasts over 40 years experience :)
funny enough i got in touch and was chatting to russ this morning,he could of been the answer to my prays as only 17 miles up the road....alas russ bottled it and said no thanks as it could be beyond him and didn't have the time or space to dedicate to it if it got tricky,seems micro processing gubins can bring legends to there knees:lol:,nice guy all the same and appreciated his candor.
that encounter is also bringing the message home regarding having any luck finding someone down here,as you say he has 40 yrs experience and seems very well respected and talented and good at what he does and seems the go to guy for this sort of thing down here,not finding anyone else being mentioned to the same status or ability.
regards
smithie
Pieoftheday
29-04-2019, 15:39
funny enough i got in touch and was chatting to russ this morning,he could of been the answer to my prays as only 17 miles up the road....alas russ bottled it and said no thanks as it could be beyond him and didn't have the time or space to dedicate to it if it got tricky,seems micro processing gubins can bring legends to there knees:lol:,nice guy all the same and appreciated his candor.
that encounter is also bringing the message home regarding having any luck finding someone down here,as you say he has 40 yrs experience and seems very well respected and talented and good at what he does and seems the go to guy for this sort of thing down here,not finding anyone else being mentioned to the same status or ability.
regards
smithie
That's a shame, ud think he'd at least have a gander, fingers crossed you can find someone
£400 :eek: Cough splutter Cough :stalks:
It will be a result if you can revive the unit :)
lolol,seemed a good price at the time,maybe the wine helped in that decision and verdict:lol:
at end of day there still retailing around £1600 so i have a little room regarding repair cost and still be happy with it and what its cost me,or ill just cry in my sleep alot.:lol:
regards
smithie
Wow, that is a bargain for such a classy high spec unit.
The manual says in a few places that the protection circuit kicks in if any speaker cables are shorted or touching the rear panel. I guess you have already looked at that. So I strongly assume either the protection module or another module is not seated correctly. With the unit off and lid removed use a flashlight and carefully check for loose cables and also 'jiggle' all cables and modules.
If there are any cables, such as ribbon cables, that can easily be unplugged/plugged I'd do that. I'd also gently push down any modules. Any if any dust build up anywhere do a good brush/vacuum. Obviously do everything gently but firmly. With a bit of luck all you have is a weak connection somewhere and these steps will cure it.
Firebottle
29-04-2019, 16:35
PM sent.
model under the one i've brought but shows you how "full" it is in there and what we,re dealing with:)
https://www.youtube.com/watch?v=vd1kmSmaTno
and this is the reply i got from the two yamaha service centure,only showing one copy as they are pretty much the same word for word
Many thanks for your recent enquiry.
In order for Sontec to progress your repair we will need you to either send in the item concerned or bring it to us in person.
There is a non-refundable deposit of £45.00 (Inc VAT), which is to help cover the investigation time of the engineer and production of an estimate should further time or parts be required.
If you accept the estimate this sum will be deducted from the final total cost.
Should you decline, the £45.00 payment is retained in order to help to cover the costs and a return delivery charge will be made. Unfortunately we are unable to commit to a cost of repair without first having the unit inspected by an engineer. Please note that in the unlikely event that we are unable to source parts required to complete the repair the £45.00 payment is retained in order to help to cover the costs and a return delivery charge will be made.
If you decide to send the item to us, could you ensure that you include your name, address, telephone number and email address and a brief outline of the problem. If there are any existing damages to the unit it would be helpful if you could advise of these also in order that we do not assume the unit to have been damaged in transit.
When packing the item for transit please ensure that it is securely packaged in a sturdy carton with a minimum of 3 inches (7-8 cms) of packaging all around the product. Be careful to store the mains plug is safely away from the item itself with the pins facing outwards.
Address to send it to is below -
and this is the reply i got from the two yamaha service centure,only showing one copy as they are pretty much the same word for word
Many thanks for your recent enquiry.
In order for Sontec to progress your repair we will need you to either send in the item concerned or bring it to us in person.
There is a non-refundable deposit of £45.00 (Inc VAT), which is to help cover the investigation time of the engineer and production of an estimate should further time or parts be required.
If you accept the estimate this sum will be deducted from the final total cost.
Should you decline, the £45.00 payment is retained in order to help to cover the costs and a return delivery charge will be made. Unfortunately we are unable to commit to a cost of repair without first having the unit inspected by an engineer. Please note that in the unlikely event that we are unable to source parts required to complete the repair the £45.00 payment is retained in order to help to cover the costs and a return delivery charge will be made.
If you decide to send the item to us, could you ensure that you include your name, address, telephone number and email address and a brief outline of the problem. If there are any existing damages to the unit it would be helpful if you could advise of these also in order that we do not assume the unit to have been damaged in transit.
When packing the item for transit please ensure that it is securely packaged in a sturdy carton with a minimum of 3 inches (7-8 cms) of packaging all around the product. Be careful to store the mains plug is safely away from the item itself with the pins facing outwards.
Address to send it to is below -
That sounds very sensible and reasonable although if it's still a current model I'd like to think they could get the parts, probably just a standard disclaimer to cover discontinued models too.
Shovel_Knight
29-04-2019, 22:52
I sometimes had to deal with service centres in my past life. Those official service places are usually not authorised to do board level repairs. For example, if there is an output transistor failure, they won't replace the transistor, instead they will order a whole new power amp board and charge you $$$$$.
Wow, that is a bargain for such a classy high spec unit.
The manual says in a few places that the protection circuit kicks in if any speaker cables are shorted or touching the rear panel. I guess you have already looked at that. So I strongly assume either the protection module or another module is not seated correctly. With the unit off and lid removed use a flashlight and carefully check for loose cables and also 'jiggle' all cables and modules.
If there are any cables, such as ribbon cables, that can easily be unplugged/plugged I'd do that. I'd also gently push down any modules. Any if any dust build up anywhere do a good brush/vacuum. Obviously do everything gently but firmly. With a bit of luck all you have is a weak connection somewhere and these steps will cure it.
hi edward
i did reply to you before but it disappeared...never to be seen again....so ill try again.
thanks for your input and tips,its quite a sophisticated protection and diagnostic setup on these amps even if the flashing light interface does not strike you as much.
the microprocessor works from a lot of check points within the amp so im guessing and hoping that its putting me into the ball park area of the fault....but ive seen the film 2001 and what the crazy computer "al" got up to so i wont be taking it as gospel:lol:
ive had a quick look for anything obvious and wiggled a few bits to no joy,the trouble is its so cramped in there that it is going to have to be at least partially stripped down just to get access and to see what's going on and to get to the test points.
still im hoping the end result of a working amp will make this endeavour worth while...here's hoping:D
regards
smithie
I sometimes had to deal with service centres in my past life. Those official service places are usually not authorised to do board level repairs. For example, if there is an output transistor failure, they won't replace the transistor, instead they will order a whole new power amp board and charge you $$$$$.
that's not good to hear:rolleyes:
does anyone know if yamaha will sell parts and spares for their hifi products direct to mr "man in a shed/kitchen" have a go type peeps?
smithie
hi edward
i did reply to you before but it disappeared...never to be seen again....so ill try again.
thanks for your input and tips,its quite a sophisticated protection and diagnostic setup on these amps even if the flashing light interface does not strike you as much.
the microprocessor works from a lot of check points within the amp so im guessing and hoping that its putting me into the ball park area of the fault....but ive seen the film 2001 and what the crazy computer "al" got up to so i wont be taking it as gospel:lol:
ive had a quick look for anything obvious and wiggled a few bits to no joy,the trouble is its so cramped in there that it is going to have to be at least partially stripped down just to get access and to see what's going on and to get to the test points.
still im hoping the end result of a working amp will make this endeavour worth while...here's hoping:D
regards
smithie
Yes I also hate it when I've done a long response and it goes up in smoke.
With non booting computers I often find that reseating stuff will cure things. At times with amps as well, particularly if old. More recently with a valve amp the protection circuit was kicking in. Turned out that the legs on one valve was slightly oxidized so a quick wipe over with an emery board all was well.
Yes looking at the vid you posted I see the Yammy is very complex and lots of areas not easily accessible.
Looks like a beautiful amp. I'd certainly also have snapped it up at the price you mentioned - even with the protection issue. With a bit of luck the fix is simple/cheap.
Yes I also hate it when I've done a long response and it goes up in smoke.
With non booting computers I often find that reseating stuff will cure things. At times with amps as well, particularly if old. More recently with a valve amp the protection circuit was kicking in. Turned out that the legs on one valve was slightly oxidized so a quick wipe over with an emery board all was well.
Yes looking at the vid you posted I see the Yammy is very complex and lots of areas not easily accessible.
Looks like a beautiful amp. I'd certainly also have snapped it up at the price you mentioned - even with the protection issue. With a bit of luck the fix is simple/cheap.
thanks edward
i have tried the reset function on this amp afew times now with no joy,at least that means the protection and microprocessor side of things seem to be working as they should which im guessing would be alot harder to sort out....that stuff is a black art at times....if a reboot or a thump or two don't work then im usually out my depth on that side of things:lol:
i never really got a response out of the owner regarding what happened when the fault happened so have no idea if it was being abused,shorted,early component failure or whatever but as like you say for this quality and level of amp i thought it was well worth the risk,plus i wanted one....well i wanted one in silver and working and mines black and non working,but at least ive got one,cant have it all can we :D
all the best
smithie
Audio Al
01-05-2019, 03:08
Do you know how old it is ? ,
I am NO expert but with most things HIFI people start by replacing ageing capacitors
Do you know how old it is ? ,
I am NO expert but with most things HIFI people start by replacing ageing capacitors
hi
no idea but im pretty sure these never came out till around 2014/2015,the four main 22000 are HUGE,they could be tricky to source as there a yamaha part but early days yet to think along those lines,the rest seem to indicate that yamaha have shares in nichicon:lol:
Audio Al
01-05-2019, 09:34
hi
no idea but im pretty sure these never came out till around 2014/2015,the four main 22000 are HUGE,they could be tricky to source as there a yamaha part but early days yet to think along those lines,the rest seem to indicate that yamaha have shares in nichicon:lol:
OK , Also it may pay you to spray the connectors with detoxit when you pull them of and re seat as this will clean the pins and connector sockets
if i end up "tackling it" then i shall use and pay attention to all the advice and tips given,thanks for the heads up and advice.
regards
smithie
Beobloke
01-05-2019, 11:51
I am NO expert but with most things HIFI people start by replacing ageing capacitors
Yamaha use decent quality capacitors and the unit is only a few years old. All that changing them will achieve is to lighten the wallet unnecessarily and introduce the possibility of circuit board damage when extracting the old ones!
Yamaha use decent quality capacitors and the unit is only a few years old. All that changing them will achieve is to lighten the wallet unnecessarily and introduce the possibility of circuit board damage when extracting the old ones!
lol
rest assured ive already lightened my wallet more then enough already and wont be replacing anything that doesn't need to be replaced to get it up and running...slow and steady is the way i will go,as much as i would love to have it up and running and sitting in my system playing i have no critical need to get it up and running yet,i have a denon 350se doing sterling sound and service in my very modest system at the moment.
like ive said.."slow and steady" and at lowest cost to repair as possible:D
regards
smithie
Been googling a bit more on this magnificent amp. The service manual is available and goes into a lot of detail. For example a detailed strip down via exploded diagrams but also how to temporarily disable protection mode to get into the diagnostic modes to pin point where a fault may be. Also it is possible to update the firmware of this amp - which is essentially a microprocessor controlled amp.
Any self respecting electronic engineer should narrow down where the fault is. Personally, if this amp was mine, I would at a minimum dig into the diagnostic modes to see what there is to see. No need to open the amp up - it can all be done via the front panel.
Been googling a bit more on this magnificent amp. The service manual is available and goes into a lot of detail. For example a detailed strip down via exploded diagrams but also how to temporarily disable protection mode to get into the diagnostic modes to pin point where a fault may be. Also it is possible to update the firmware of this amp - which is essentially a microprocessor controlled amp.
Any self respecting electronic engineer should narrow down where the fault is. Personally, if this amp was mine, I would at a minimum dig into the diagnostic modes to see what there is to see. No need to open the amp up - it can all be done via the front panel.
hi edward
and that's exactly what i did when i first got it.
couldn't believe my luck to just be able to get the service manual off the net free of charge and so easily and as you say its shows you everything including the in depth diagnostics etc.
as mentioned this setup is telling me via the two flashes on the front panel that it is a power supply mainboard 3 problem,and certainly where i shall be looking first...its just the strip down that might take awhile,and finding a bit of room to work on it in bits....its a big-un:stalks:
as always thanks for the thoughts,ideas and advice...always helpful.
regards
smithie
did i mention how cramped and tight it was inside this amp? way dusty to:D
Beobloke
03-05-2019, 19:22
To be honest, it's most likely that one or more of your output transistors are toast, which you can check with a multimeter.
To be honest, it's most likely that one or more of your output transistors are toast, which you can check with a multimeter.
cheers adam
i may be having someone popping over wednesday with the brains and talent and skills to shed some light on the matter....here's hoping as im so keen to have a listen to it!!
cheers adam
i may be having someone popping over wednesday with the brains and talent and skills to shed some light on the matter....here's hoping as im so keen to have a listen to it!!
Hi there what transpired ? .... i'm hoping that its palying well by now ?
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