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Old 8th March 2004, 09:56 PM   #1
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Default Denon DVD 2900 mod

Has anyone had any experience moding a Denon2900 player? So far I have installed soft recocovery diodes, resistors and BG caps in the power supply. I also installed Cardas connectors for Left/Right outputs, Burr Brown OP627 op amps, damping feet, and dampened the chassis (all the easiest stuff). I would like to go to the next step and replace the clock and anything else which will enhance the capabilities of this player. Any input is appreciated. Thank you.
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Old 9th March 2004, 01:49 AM   #2
eganz is offline eganz  United States
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and the sonic effects of your changes were ...
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Old 9th March 2004, 02:20 AM   #3
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You don't mention AC cord! A major step, on Denon DVD 3800.
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Old 9th March 2004, 02:32 AM   #4
mlloyd1 is offline mlloyd1  United States
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Default Re: Denon DVD 2900 mod

Doesn't this thing use a switching power supply?

Quote:
Originally posted by audiofan58
... a Denon2900 player? So far I have installed soft recocovery diodes, resistors and BG caps in the power supply...
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Old 9th March 2004, 11:25 AM   #5
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Default dvd2900

The improvements were immediate. First, I replaced the diodes and noticed the sound was much more open and a bit more punch in the bass. This was probably the most cost effective upgrade. The addition of BB 627 op amps made a nice improvement also. Highs and midrange were much more defined and fluid.

I upgraded the power cable with one which I made. I used Caroll 10 AWG cable the Marinco and Wattgate connectors.

I also installed a new silver IEC connector on the unit and BG's in the PS. It has much more bass now than when I started but is still lacking in the lower end. Im not sure if it is a switching PS or not. Thanks for the replies....
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Old 11th March 2004, 05:35 PM   #6
A 8 is offline A 8  Sweden
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I've done some changes to the video board and added a ASRC with spdif out to be able to run the front channels through a separate dac.
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Old 11th March 2004, 06:05 PM   #7
cb777 is offline cb777  United States
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Hello audiofan58,
When you modify the player's power supply (like replacing caps), did you discharge the cap before working on it? I might want to start working on them too.
thanks
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Old 12th March 2004, 08:06 PM   #8
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I didnt discharge the caps. Im new to this and didnt think to do that. Dumb mistake. I am having problems reading some SACD disks now. This seems to have started when I replaced 3- 2W resistors. Im not sure if its related or not. I want change some of the other caps but dont know which ones to change. The schematic is on backorder.
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Old 12th March 2004, 10:16 PM   #9
eganz is offline eganz  United States
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use a grounding strap...
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Old 15th September 2004, 08:22 AM   #10
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Default DVD 2900 Schematic

Does somebody have a schematic of the DVD2900? Would like to work on mine too, even though I replaced already the OpAmps by AD825, which is already a huge improvement.

Cheers,
Dan
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