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Old 28th April 2009, 06:20 PM   #171
diyAudio Member
Join Date: Jun 2005
Location: drachten
Hi there! I build me the IV stage in an parasound 1500 dac. Its hardwired. I connected the board to the pcm63PK and measured on the input 965mv and the output is drifting between 10mv and -4mv. Should I use the cermet pots to bring the input down? I connected the jumpers. Before I did that, offset on in and output was drifting from 60mv to 45mv on the inputs and outputs, but after an hour offset was at all points 0 mv, and there was no music. The cdplayer locked. Can I give it a try? Or will I destroy something. Grtz Teake
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Old 29th April 2009, 08:28 AM   #172
zei is offline zei  Sweden
diyAudio Member
Join Date: Feb 2005
Location: Gothenburg, Sweden

You should trim it to 0V on both inputs.

According to others it might drift somewhat at first before the temp is steady.

Tala är tiga, silver är guld
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Old 29th April 2009, 03:03 PM   #173
diyAudio Member
Join Date: Aug 2008
it possible to use this I/V stage for tda 1545?.

and can any one give me the D1 shematic?

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Old 2nd December 2009, 01:10 AM   #174
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Join Date: Mar 2008
Just got two of these boards from another member.
YUNICK do you still use the d1 with buffalo 9008?
How is the sound?

What were the values you finaly went with?
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Old 7th September 2016, 04:26 AM   #175
vizion is offline vizion  United States
diyAudio Member
Join Date: Apr 2007

Can someone share the schematic for the original D1 I/V output stage with a single Mosfet ? This link isn't good anymore:


Last edited by vizion; 7th September 2016 at 04:29 AM.
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