Onkyo Grand Intégra a-8890

[uchu007]

Onkyo Grand Intégra a-8990

Hello ,
I have a problem with an amplifier Onkyo Grand Integra A-8990 who remains in protection someone has it service manual?
cordially

 

[spladski]

HiFi Database - Images, Specs, Manuals and Reviews
Under Onkyo they may have something similar. Their models had similarities. So you may find something close. Integra made by Onkyo is also on the site, but you seem to have to search for that.

 

[uchu007]

HiFi Database - Images, Specs, Manuals and Reviews
Under Onkyo they may have something similar. Their models had similarities. So you may find something close. Integra made by Onkyo is also on the site, but you seem to have to search for that.

I look on other onkyo amp of the same year but I found nothing similar mounted with opto-coupler.

 

[uchu007]

Nobody has this service manual? Car not found

 

[Oneminde]

Its not available for free but you could buy it at a few places, here is one source.

Download ONKYO A-8990 Service Manual

 

[uchu007]

Its not available for free but you could buy it at a few places, here is one source.

Download ONKYO A-8990 Service Manual

OK thank you it's a serious site?

 

[Oneminde]

There are a few other sites which sell SM and this specific model, so have a look around. Also search for reviews, that is the best tip I can give you. I bough one Acuphase SM on ebay once, but that was a different seller. Basically can't tell you if its any good or not

 

[turk 182]

if it's not coming out of protect it's either a supply fault or an output stage fault.

should be easy enough to find failed components and assess the damage without needing a schematic/manual and estimate/research replacement costs, then get documentation, non?

bonne chance...

 

[uchu007]

if it's not coming out of protect it's either a supply fault or an output stage fault.

should be easy enough to find failed components and assess the damage without needing a schematic/manual and estimate/research replacement costs, then get documentation, non?

bonne chance...

He is repairing now he is coming out of protection, it was a M5218L that deconed! But now he makes me a big ploc enough strong on a channel from time to time

 

[turk 182]

good thing i know the translation of "ploc" as "thump" and that would be an intermittent thump (un ploc temp en temp)
with replacing that inline M5218L are all associated capacitors testing good?

 

[uchu007]

good thing i know the translation of "ploc" as "thump"
with replacing that inline M5218L are all associated capacitors testing good?

all the capacitors are replace, I think there is a semiconductor that kinks from time to time but must find which one! I tested all the transistor at Atlas DCA75pro it is ok .I will try to replace the other m5218L

 

[turk 182]

now i see why your looking for service info it is a deeper level problem.

it still seems like cap troubles to me in most of the "PLOC" scenario's i've troubleshot the noise comes from dc levels shifting, which could be transistor break down, look for a hot one.

bonne chance mon ami!

 

[Shinja]

It may be similar to A-8800, containing DAC and optical something for the power amplifier.

 

[uchu007]

It's good I managed to have the manual service on the site that Oneminde indicated me. I just changed the second M5218L I'm in the test, will see when it will heat ....

 

[turk 182]

puis ca va bien?

 

[uchu007]

puis ca va bien?

Yes it's good all was well the 2 M5218L who was dead ..... I replaced the LTZ-MR15 around too!

 

[turk 182]

a la prochaine

(till next time)