• If you ever spot Spam (either in the forums, or received via forum direct message) please use the Report button at the bottom of each post to make sure a Moderator can handle it quickly. Thanks for your help in keeping things running smoothly!

Amp repair

bignige

Well-known member
Apr 5, 2009
27
0
18,540
Hi all,

Anyone on here able to look at fixing a Sony amp -or any suggestions for someone who could have a look?

It's a Sony DA9000ES

N
 

drummerman

New member
Jan 18, 2008
540
1
0
bignige said:
Hi all,

Anyone on here able to look at fixing a Sony amp -or any suggestions for someone who could have a look?

It's a Sony DA9000ES

N
If you head over to PFM there are a couple of Repairers regularly posting. Arkless Electronics being one.
 

bignige

Well-known member
Apr 5, 2009
27
0
18,540
What's the fault symptom and whereabouts are you bignige?

After switching on it says "protector check code eleven”

Checked the speaker connections and no issues there.

It is a guy on Facebook I am trying to help and he is in Birmingham.

N
 

Gray

Well-known member
Nov 27, 2015
1,454
911
12,070
Speakers and their wiring was where to look by what others are saying. Presumably he's powered down and up again / tried factory reset. Drummerman's suggestion seems like a good one for him.
 

drummerman

New member
Jan 18, 2008
540
1
0
Just saw he can't help.

Big thing. None on my ebay at present so I don't know how much its worth on the used market.
 

bignige

Well-known member
Apr 5, 2009
27
0
18,540
Don't know the used value but he paid £3K for it new and it is his "dream amp".

So, I am trying to help him but no luck as yet...

N
 

newlash09

Well-known member
Aug 28, 2015
219
45
10,820
is this gentleman you are posting for from the navy. Remember a lot of us recommending this particular amp used to a sailor from Birmingham. So was curious
 

insider9

Well-known member
Sep 20, 2016
787
341
5,270
These were big indeed. However lose value very,very quickly. Many AV amps that were around £1,000 back then are selling for under £50. I'm sure this one would go for much more though.
 

bignige

Well-known member
Apr 5, 2009
27
0
18,540
newlash09 said:
is this gentleman you are posting for from the navy. Remember a lot of us recommending this particular amp used to a sailor from Birmingham. So was curious

Don't know.

N
 

newlash09

Well-known member
Aug 28, 2015
219
45
10,820
any music kit service center should be able to sort it out. Too much of voodoo in our hobby. I recenty paid my local electrician the equivalent of 5 pounds to renew the voice coil of the burnt tweeter of my pmc 20.26 speakers. And when he was done, i measured the resistance of the renewed tweeter with the still intact tweeter, and they both measured exactly the same. I can only imagine what the cost of a new tweeter could be. So, please ask him to look around for any electrical work shop. Dont necessarily need a sony service centre to sort it out, where they will charge him a bomb, which as per them is just a fraction of the cost of the amp
 

drummerman

New member
Jan 18, 2008
540
1
0
newlash09 said:
any music kit service center should be able to sort it out. Too much of voodoo in our hobby. I recenty paid my local electrician the equivalent of 5 pounds to renew the voice coil of the burnt tweeter of my pmc 20.26 speakers. And when he was done, i measured the resistance of the renewed tweeter with the still intact tweeter, and they both measured exactly the same. I can only imagine what the cost of a new tweeter could be. So, please ask him to look around for any electrical work shop. Dont necessarily need a sony service centre to sort it out, where they will charge him a bomb, which as per them is just a fraction of the cost of the amp
This may be slightly different :)

Its finding a repairer that is willing to try in the first instance and one that is local. Shipping this thing may cost more than its worth?

A quick google of Sony's 'Fault Code 11' reveals many wonderful layman diagnosis on what it could be. - From faulty transistors, fuses, simply resetting it to goblins making a home in there. - Maybe I made the last one up.

As Arkless said, big complicated thing in the best Sony tradition. Hope you can sort it.

I still have a STR DB930. Fantastic in 2 channel.
 

Vladimir

New member
Dec 26, 2013
220
4
0
He should disconnect everything from the amp. No speaker wires, no cables except the power cord going in the mains.

1) If the error code 11 appears again when the amplifier is turned on or after 1h of idling, the amp has a failing component. Could be a simple fix for an experienced tech.

- measure DC offset on the terminals. Is it bigger than 25mV DC?

2) If no error appears, then it could mean the problem is elsewhere.

- there's a problem how the speakers are connected, arangement of terminals, out of phase, or bits of wire touching.

- the speakers that are connected are missmatched in impedance (never combine 4ohms and 8ohms).

- some of the speaker drivers have blown.

- speaker crossover component failed.

- also I'd test the amp with everything disconected, but attach headphones.
 

newlash09

Well-known member
Aug 28, 2015
219
45
10,820
Vladimir said:
He should disconnect everything from the amp. No speaker wires, no cables except the power cord going in the mains.

1) If the error code 11 appears again when the amplifier is turned on or after 1h of idling, the amp has a failing component. Could be a simple fix for an experienced tech.

- measure DC offset on the terminals. Is it bigger than 25mV DC?

2) If no error appears, then it could mean the problem is elsewhere.

- there's a problem how the speakers are connected, arangement of terminals, out of phase, or bits of wire touching.

- the speakers that are connected are missmatched in impedance (never combine 4ohms and 8ohms).

- some of the speaker drivers have blown are shorted.

- speaker crossover component failed.

- also I'd test the amp with everything disconected, but attach headphones.
Upto your in depth knowledge posts as ever :)
 

ASK THE COMMUNITY

TRENDING THREADS

Latest posts