Trio (Kenwood) DP-1000, Any info? - Page 3 - diyAudio
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Old 23rd March 2007, 04:30 AM   #21
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And the second will be in next month's edition..

Oh, ok here it is:
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Old 23rd March 2007, 04:39 PM   #22
GJF is offline GJF  United Kingdom
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Nice one Nat!

I will try to get some pictures of my modified DP-1000 but doubt my crappy digital camera will be able to get very close.

Since my last post I've had the lid off again with a view to seeing what else could be uprated and found a 1000uf capacitor near to the DAC that seemed to be leaking.
I quickly replaced that with another Panasonic and, voila, yet another smoothing of the sound and better definition at high frequencies.
I'd go so far as to say that this made more difference than the other mods but without another player to compare to its hard to say.
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Old 28th March 2007, 06:28 AM   #23
hadihf is offline hadihf  Pakistan
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Default Remote Control

Thanks for the nice article. However the review made me more hungry for a remote control Somebody got a spare one?
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Old 28th March 2007, 10:37 AM   #24
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Best substitute the encapsulated (?) analog filter with something else.
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Old 28th March 2007, 04:54 PM   #25
GJF is offline GJF  United Kingdom
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The encapsulated filter is actually a thick-film assembly made by filter specialists, Murata.

I understood that these thick-film filters are made to tighter tolerances than filters made from discrete components and required no adjustments so had assumed that they do not drift with age.

Question would be, replace with what and would it sound any better?

All suggestions greatfully accepted.
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Old 28th March 2007, 05:11 PM   #26
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I opened some of those Muratas, they include op amps and smd filter caps.
Op amps seem to be ok, but smd filter caps ???

I tried different Muratas, they also sound not so good.

Some but not all passive filters sound better, also op amp filter with good film caps.

I can post a gic filter from Sony later.
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Old 29th March 2007, 05:01 AM   #27
hadihf is offline hadihf  Pakistan
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Default circuit diagram 1 of 9

Here is the circuit diagram...... in 9 parts
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File Type: pdf kenwood dp-1000_page_1.pdf (67.9 KB, 114 views)
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Old 29th March 2007, 05:02 AM   #28
hadihf is offline hadihf  Pakistan
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Default Part 2 of 9

2 of 9
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File Type: pdf kenwood dp-1000_page_2.pdf (46.1 KB, 78 views)
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Old 29th March 2007, 05:04 AM   #29
hadihf is offline hadihf  Pakistan
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Default Part 3 of 9

3 of 9
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File Type: pdf kenwood dp-1000_page_3.pdf (74.2 KB, 76 views)
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Old 29th March 2007, 05:09 AM   #30
hadihf is offline hadihf  Pakistan
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Default Part 4 of 9

4 of 9
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File Type: pdf kenwood dp-1000_page_4.pdf (87.2 KB, 79 views)
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