Arcam D290 schematics

Gyula · 26th July 2004, 06:40 PM

Hi!

I bought a second hand Arcam D290 amplifier, but the output transistors are missing. Is there anybody who knows this amp? What types of transistors should it has?

Thanks!

Gyula

loewnhertz · 20th December 2006, 12:28 PM

The original MOSFETs in the ARCAM D290 are SEF240.
For this is a rare transistor with few information in the internet, I´m searching for substitute, maybe IRF240.

Gyula · 20th December 2006, 06:06 PM

Hi loewnhertz!

Yes, the original MOSFETs can be substituted with IRFP240s. Send me your e-mail address, and I send you the service manual.

Gyula

loewnhertz · 22nd December 2006, 03:21 PM

Thank you very much!
I hope you meant IRF240, because IRFP240 is in a TO247 case...
I´m a new member, so I can´t send you an email directly.
If you get this message I would be glad if you could send the manual to loewnhertz@gmx.net
thanks, loewnhertz

sharifs2 · 22nd December 2006, 03:52 PM

Hi Gyula,
Can you foward me a copy of D290 Service Manual as well?
Been looking for it for years.
Thanks in advance.

Sharifs2

Gyula · 22nd December 2006, 06:58 PM

Not at all! I fixed up the transistors with one screw of the two, per TO-3 seat. I also fixed a clip to that screw, then flatted the center leg of the transisitor to it and soldered them to each other. But you can follow the way in the manual, just be aware of insulate the package and the screw from the heatsink.
At the PCB's down side, as the manual shows, the two collector pad must be connected with wire, at each TO-3 seat.

Good luck and merry christmas!!
Gyula

Gyula · 22nd December 2006, 07:01 PM

sharifs2, I sent you a private message.

nospam · 30th January 2007, 01:05 PM

Hi Gyula,
Can you also foward me a copy of D290 Service Manual as well?

Been looking everywhere, but can't find it antywhere.

Thanks in advance.

Gyula · 31st January 2007, 10:49 PM

Hi nospam!

Send me a mail about your email address.

Gyula

M.Y. · 1st February 2007, 04:56 PM

Hi Gyula,
Could you also send me a copy of service manual , i want to make a clone of it, my email is ztmy1@126.com

Thanks in advance.

26th July 2004, 06:40 PM	#1
Gyula diyAudio Member Join Date: Feb 2004 Location: Kunszentmárton, Hungary	Arcam D290 schematics Hi! I bought a second hand Arcam D290 amplifier, but the output transistors are missing. Is there anybody who knows this amp? What types of transistors should it has? Thanks! Gyula

20th December 2006, 06:06 PM	#3
Gyula diyAudio Member Join Date: Feb 2004 Location: Kunszentmárton, Hungary	Hi loewnhertz! Yes, the original MOSFETs can be substituted with IRFP240s. Send me your e-mail address, and I send you the service manual. Gyula __________________ Nagy Gyula

22nd December 2006, 06:58 PM	#6
Gyula diyAudio Member Join Date: Feb 2004 Location: Kunszentmárton, Hungary	Not at all! I fixed up the transistors with one screw of the two, per TO-3 seat. I also fixed a clip to that screw, then flatted the center leg of the transisitor to it and soldered them to each other. But you can follow the way in the manual, just be aware of insulate the package and the screw from the heatsink. At the PCB's down side, as the manual shows, the two collector pad must be connected with wire, at each TO-3 seat. Good luck and merry christmas!! Gyula __________________ Nagy Gyula

22nd December 2006, 07:01 PM	#7
Gyula diyAudio Member Join Date: Feb 2004 Location: Kunszentmárton, Hungary	sharifs2, I sent you a private message. __________________ Nagy Gyula

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20th December 2006, 12:28 PM	#2
loewnhertz diyAudio Member Join Date: Dec 2006	The original MOSFETs in the ARCAM D290 are SEF240. For this is a rare transistor with few information in the internet, I´m searching for substitute, maybe IRF240.

22nd December 2006, 03:21 PM	#4
loewnhertz diyAudio Member Join Date: Dec 2006	Thank you very much! I hope you meant IRF240, because IRFP240 is in a TO247 case... I´m a new member, so I can´t send you an email directly. If you get this message I would be glad if you could send the manual to loewnhertz@gmx.net thanks, loewnhertz

22nd December 2006, 03:52 PM	#5
sharifs2 diyAudio Member Join Date: Oct 2004	Hi Gyula, Can you foward me a copy of D290 Service Manual as well? Been looking for it for years. Thanks in advance. Sharifs2

30th January 2007, 01:05 PM	#8
nospam diyAudio Member Join Date: Apr 2006 Location: Finnmark	Hi Gyula, Can you also foward me a copy of D290 Service Manual as well? Been looking everywhere, but can't find it antywhere. Thanks in advance.

31st January 2007, 10:49 PM	#9
Gyula diyAudio Member Join Date: Feb 2004 Location: Kunszentmárton, Hungary	Hi nospam! Send me a mail about your email address. Gyula

1st February 2007, 04:56 PM	#10
M.Y. diyAudio Member Join Date: Oct 2003 Location: GD	Hi Gyula, Could you also send me a copy of service manual , i want to make a clone of it, my email is ztmy1@126.com Thanks in advance.

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