Yamaha A-400 schematics/bias needed

hiwiho · 12th November 2004, 12:08 PM

I know a manual is available from Schaltungsdienst Lange, but the amp's old (1984) and suffers from various things (bass equilizer dead, one channel gone completely) so I don't want to pay 20euros for things I'm not shure I will be able to fix...

Does anyone have a schematic he could mail me? One of the bigger models (a-500, a-700) might work, too...

And any info on the bias?

Thanks in advance,
Matthias

dolmengaenger*no..spam*@epost.de

(remove *no..spam*)

hiwiho · 15th November 2004, 11:00 PM

No one able to give even a slight hint?!? Cannot be... Come on, check your manual archives

anatech · 16th November 2004, 01:23 AM

Hi hiwiho,
I was going to email you, but I can't through the board. PM me. I have a zip of the A-700 that may help you.
-Chris

hiwiho · 16th November 2004, 07:52 AM

Thanks Chris,

I just wrote you an email!!

matthias

anatech · 17th November 2004, 02:03 AM

Hi Matthias,
You have mail.

hiwiho · 17th November 2004, 08:35 AM

Thank you very very much, Chris. Now i can see what I can do!

destroyer X · 18th November 2004, 12:57 AM

In our forum friend site:

www.schematicsforfree.com

more than 3 Megabytes size.

regards,

Carlos

destroyer X · 18th November 2004, 01:06 AM

Here you have the image.

Carlos

hiwiho · 18th November 2004, 10:04 AM

Thank you, Carlos, I didn't know this site and happily got my file. As long as a bit confusing site design leeds to a result, I don't mind

Matthias

destroyer X · 18th November 2004, 12:37 PM

Name is very used here.

I hope the schematic will help you.

Matt is our forum friend...he is with us sometimes.

Carlos

12th November 2004, 12:08 PM	#1
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Yamaha A-400 schematics/bias needed I know a manual is available from Schaltungsdienst Lange, but the amp's old (1984) and suffers from various things (bass equilizer dead, one channel gone completely) so I don't want to pay 20euros for things I'm not shure I will be able to fix... Does anyone have a schematic he could mail me? One of the bigger models (a-500, a-700) might work, too... And any info on the bias? Thanks in advance, Matthias dolmengaengerno..spam@epost.de (remove no..spam)

18th November 2004, 12:57 AM	#7
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	You can find the Yamaha A700 integrated amplifier In our forum friend site: www.schematicsforfree.com more than 3 Megabytes size. regards, Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!.. when not work first time, then becomes a nice challenge...and we usually overcome the trouble... and we feel very well to be mastering the machine.

18th November 2004, 12:37 PM	#10
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	I feel good with that Matthias, by the way, your Name is very used here. I hope the schematic will help you. Matt is our forum friend...he is with us sometimes. Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!.. when not work first time, then becomes a nice challenge...and we usually overcome the trouble... and we feel very well to be mastering the machine.

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15th November 2004, 11:00 PM	#2
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	No one able to give even a slight hint?!? Cannot be... Come on, check your manual archives

16th November 2004, 01:23 AM	#3
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi hiwiho, I was going to email you, but I can't through the board. PM me. I have a zip of the A-700 that may help you. -Chris

16th November 2004, 07:52 AM	#4
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Thanks Chris, I just wrote you an email!! matthias

17th November 2004, 02:03 AM	#5
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Matthias, You have mail.

17th November 2004, 08:35 AM	#6
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Thank you very very much, Chris. Now i can see what I can do!

18th November 2004, 10:04 AM	#9
hiwiho diyAudio Member Join Date: Sep 2004 Location: Berlin	Thank you, Carlos, I didn't know this site and happily got my file. As long as a bit confusing site design leeds to a result, I don't mind Matthias

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