Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => The Newcomer's Forum => Topic started by: yustech on June 09, 2008, 05:45:55 AM

Title: Hughes & Kettner Attax 40 Schematics
Post by: yustech on June 09, 2008, 05:45:55 AM
hello fellow forumer,i'm new to this forum thing,i dont know where to put this.I need some help,i have this H&K Attax 40 arrive for repair.wondering anyone has schematic or direct me to the site that has it.
Thank you and god bless you all. :)
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: teemuk on June 09, 2008, 08:03:58 AM
I haven't seen any schematics to that series online. Have you tried contacting H&K?
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: J M Fahey on June 09, 2008, 02:44:32 PM
Dear yustech. Write them (HK), include the serial number; 99% they´ll email you a schematic. Then you post it here and start asking whatever help some of us can give you. ¿Can you solder, read schematics, use a multimeter? Bye.
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: yustech on June 14, 2008, 01:43:17 PM
Quote from: teemuk on June 09, 2008, 08:03:58 AM
I haven't seen any schematics to that series online. Have you tried contacting H&K?

thanks,i've email them and they replied within 30min,with schematic attached,now i could repair the amp.thanks again. :)
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: yustech on June 14, 2008, 01:54:12 PM
Quote from: J M Fahey on June 09, 2008, 02:44:32 PM
Dear yustech. Write them (HK), include the serial number; 99% they´ll email you a schematic. Then you post it here and start asking whatever help some of us can give you. ¿Can you solder, read schematics, use a multimeter? Bye.
hello J M Fahey,
got the schematic,thanks.post the schematics here?won't they(HK) know,I don't mean to be selfish,i love to share,i'm a amptech myself(beginner that is).i sure need all the help i can get.anyway how do i do that(post schematic here?) 
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: J M Fahey on June 16, 2008, 11:25:57 PM
Hi Yustech. I fully understand you, don´t want to cause you any trouble. I think that if you send me, a fellow technician, a copy of the schematic , and we share forces to repair an HK product, that´s an accepted,  "fair use" of said schematic. At most I might extract and post here a part of it and ask you to take some voltage or resistance measurements, then replace some suspect component, to end by repairing it (hopefully). The step by step repair procedure might be useful , at an educational level, for somebody else. Is the power amp blown? Please tell us what was the problem with it.
You can send me the schematic to:   juanmanuelfahey@gmail.com   
Thanks.
JMFahey
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: yustech on June 23, 2008, 11:44:19 AM
hello,JM Fahey

I'm so sorry for the very late reply,I was a bit busy.it was the return input problem,problem solved.
Thanks Again
:)
your copy on its way.
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: J M Fahey on July 06, 2008, 03:16:29 PM
Dear Yus , thanks for the schematic. Thanks God you could quickly repair it. These HK guys really know their stuff. Relatively simple amps, *very* good sounding ones. I remember a Guitar Player "test/competition": this Attack40 Vs Valvestate 40 and some Fender. Their final answer?: "The attax 40 is the only one *without* tubes (all others were hybrid), yet it´s the one with the "tubiest sound". Enough said!
Thanks again.
JM
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: clarky1979 on October 09, 2008, 05:05:21 PM
Hi!

i'm looking for the schematics of the attax 40 since 3 weeks... i'm technician and the guitarist of my band needs his attax amp to be repaired.

Is it possible to get the schematics?  thanks a lot by advance!

Clarky.



E-mail: clark2000@free.fr
Title: Re: Hughes & Kettner Attax 40 Schematics
Post by: clarky1979 on October 11, 2008, 02:32:38 PM
Nobody can help me?? Please ?? :)