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Old 20th May 2004, 08:30 AM   #1
beks is offline beks  Albania
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Unhappy Onkyo M 508

Hi,

I have Onkyo Integra M 508 power amplifier, and left channel is blown. Even if all transistors are changed, i.e. power out stage, drivers, small frequencies trans. etc., it will work just few minutes and everything will die again.
There are 8 big capacitors 10000uF/90V and seems they are fine, though.

My question is, does anyone has schema or similar documentation for onkyo, or any kind of help will be appreciated.

Thanks in advance
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Old 20th May 2004, 12:20 PM   #2
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Default Hmmmmmmmmm...

Normally the M 508 are known to blow the big caps, but I have never experienced a 508 that blows the output devices like this ...
I'm also interested in a copy of the schematic if possible
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Old 20th May 2004, 05:10 PM   #3
K-amps is offline K-amps  United States
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Default Re: Hmmmmmmmmm...

Quote:
Originally posted by ACD

I'm also interested in a copy of the schematic if possible
Me too


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Old 20th May 2004, 05:30 PM   #4
Netlist is offline Netlist  Belgium
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Default Re: Onkyo M 508

Quote:
Originally posted by beks

My question is, does anyone has schema
If its urgent, no, but I could try to have it if you could wait two weeks or so.

/Hugo
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Old 20th May 2004, 05:42 PM   #5
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Default Netlist

Please do....
I'm not in a hurry
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Old 20th May 2004, 05:58 PM   #6
K-amps is offline K-amps  United States
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Same here!
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Old 21st May 2004, 07:04 AM   #7
beks is offline beks  Albania
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Thank You guys,

If somehow is possible to get that schema for this amp, will be like gift for Xmas.

Netlist: I'm not in the hurry, I can wait just in case you can find something..

thanx
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Old 28th May 2004, 10:59 AM   #8
Netlist is offline Netlist  Belgium
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All,
The manual came in.
Mail me and expect it in your box tomorrow.

/Hugo
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Old 29th May 2004, 12:23 AM   #9
AJT is offline AJT  Philippines
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hi netlist,
can i have the schematics too? thanks...

how about an onkyo integra m510, i believe their top of the line way back then...thanks

you may send to rodenbarca@yahoo.com or jbuenotecson@yahoo.com


thanks a lot,

tony
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Old 29th May 2004, 01:03 AM   #10
lubbie is offline lubbie  Canada
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I have the M510 Integra on order and it was ONKYO's 1995 Flagship Amp.. Waiting for it to arrive.

This amp claimed 0.003 IM and .005 THD at rated output..

300watts/ch into 8ohm. 750watts/ch into 4ohm.
1Hz-100KHz +-.1db
120db SN

If anyone wants to look i'll try and post.

The M508 is no slouch though.. Look at the following specs.

The M508 claims 200W/ch into 8. 460W/ch into 4
Same frequency responce as above but has lower distortion .003 for both IM and THD at rated output.
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