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Oppo new UDP series players - 203/205 - Discussions, upgrades, modifications
Oppo new UDP series players - 203/205 - Discussions, upgrades, modifications
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Old 8th January 2017, 08:39 AM   #11
Coris is offline Coris  Norway
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Oppo new UDP series players - 203/205 - Discussions, upgrades, modifications
Quote:
Originally Posted by jmyres View Post
So far it's been really solid. I was reading through some of the initial reactions, and some people mentioned small issues, like having to re-seat their HDMi cables after first power-on, but I didn't run into that either.

I have watched two Blu-rays so far. I will make a point to watch more to see if I run into anything, and report back. Anther positive is that this model is successfully transmitting the DSD Bitstream directly over HDMI, rather than DSD over PCM like my BDP-103 did. That puts a huge smile on my face as I can now use the Oppo for everything, rather than keeping a second player for SACD.

Since that's the case, like I mentioned before, I'd really like to explore the potential of the player with power supply, clock, shielding, and possibly analog out if better DA converters were available. Right now I am using the ESS 9016S in my Pioneer Elite receiver, which sounds very good, but would definitely consider moving to a minimal hi-fi pre-amp with the 203 if it's analog outputs could be improved over what I have with the Elite.
Thanks jmyres for your report. Good to know this Oppo model it have native DSD over HDMI. Indeed, a important step forward.

Hereby are my improvement solutions, which it (mechanically) fit also for new Oppo UDP models.
Attached Images
File Type: jpg LPM-Oppo 101b.jpg (607.6 KB, 772 views)
File Type: jpg CLKboard.jpg (875.1 KB, 751 views)

Last edited by Coris; 8th January 2017 at 08:45 AM.
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Old 8th January 2017, 10:34 AM   #12
Jae Hong Lee is offline Jae Hong Lee  South Korea
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I just uploaded 27 Mhz clock circuitry in my blog.

please visit again


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Old 8th January 2017, 10:39 AM   #13
Jae Hong Lee is offline Jae Hong Lee  South Korea
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Again new LPM for OPPO BDP 203 .

The size is smaller ( 100* 155 mm) than that of oppo 103/105 .

OPPO 203 needs only 12V for main board and +/-15V for DAC board .

Click the image to open in full size.

Click the image to open in full size.
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Old 8th January 2017, 11:55 AM   #14
Coris is offline Coris  Norway
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Oppo new UDP series players - 203/205 - Discussions, upgrades, modifications
As I can see in the picture published by Jae Hong Lee, the clock section of the main processor it use a resonator. Most likely the 25Mhz clock for BD driver decoder it use a similar component (resonator).
It could be nice if Jae Hong Lee can publish a close up for this section too...
However, I appreciate as necessary an clock system improvement for 203 model, beside the linear power supply.

Also it could be nice (and much appreciated) an confirmation about of the SMPS fixing holes disposition/distances for this 203 model. My assumption is that the fixing holes (bolts) disposition in 203 model is the same as for the former 101 model...
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Old 10th January 2017, 02:58 AM   #15
jmyres is offline jmyres  United States
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Quote:
Originally Posted by Jae Hong Lee View Post
Again new LPM for OPPO BDP 203 .

The size is smaller ( 100* 155 mm) than that of oppo 103/105 .

OPPO 203 needs only 12V for main board and +/-15V for DAC board .
Do you know when your new 203 power supply will be available for purchase on your site?
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Old 10th January 2017, 03:27 AM   #16
jmyres is offline jmyres  United States
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Quote:
Originally Posted by Coris View Post
I appreciate as necessary an clock system improvement for 203 model, beside the linear power supply.
Have you found yet if Oppo fixed some of the questionable design choices made in the earlier models, like the DAC allocation issue, or is the 203 essentially just a BDP-103 thats been upgraded for 4K video?
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Old 10th January 2017, 05:43 AM   #17
Jae Hong Lee is offline Jae Hong Lee  South Korea
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Click the image to open in full size.[IMG]Click the image to open in full size.[/IMG]
Quote:
Originally Posted by Coris View Post
As I can see in the picture published by Jae Hong Lee, the clock section of the main processor it use a resonator. Most likely the 25Mhz clock for BD driver decoder it use a similar component (resonator).
It could be nice if Jae Hong Lee can publish a close up for this section too...
However, I appreciate as necessary an clock system improvement for 203 model, beside the linear power supply.

Also it could be nice (and much appreciated) an confirmation about of the SMPS fixing holes disposition/distances for this 203 model. My assumption is that the fixing holes (bolts) disposition in 203 model is the same as for the former 101 model...


147mm *91mm fixing hole distance

Last edited by Jae Hong Lee; 10th January 2017 at 05:48 AM. Reason: error
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Old 10th January 2017, 08:04 AM   #18
Coris is offline Coris  Norway
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Oppo new UDP series players - 203/205 - Discussions, upgrades, modifications
Thank you very much for your help Jae Hong Lee. Much appreciated indeed.
It looks like the clock for this Mediatek ARM is obtained based on an resonator...
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Old 10th January 2017, 08:16 AM   #19
Coris is offline Coris  Norway
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Oppo new UDP series players - 203/205 - Discussions, upgrades, modifications
Quote:
Originally Posted by jmyres View Post
Have you found yet if Oppo fixed some of the questionable design choices made in the earlier models, like the DAC allocation issue, or is the 203 essentially just a BDP-103 thats been upgraded for 4K video?
Well, this DAC output channels allocation design issue of Oppo for 105/105D models, it have to be confirmed (or not) when the 205 model it will come out.
There is here about the ESS9018 DAC chip.
The DAC section in 203 models is based on the cheap AKM 4458 DAC chip. Here is another architecture for DAC outputs, than it was/is for 105/105D models.
The issue do not apply for UDP 203 (BD 103, 103D, 101) models. Indeed, we can say so: the 203 model is an 4k upgrade of the former 103/103D models... The next coming Oppo UDP 205 model it will be an 4k upgrade for video and a DAC upgrade (new ESS90128/38Pro chip) for sound, of the former 105/105D models...

Last edited by Coris; 10th January 2017 at 08:23 AM.
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Old 10th January 2017, 07:53 PM   #20
jmyres is offline jmyres  United States
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Quote:
Originally Posted by Coris View Post
Indeed, we can say so: the 203 model is an 4k upgrade of the former 103/103D models...
Thanks for confirming that. Given the quality of the player, their pricing is reasonable, so it seems fair they've had to economize in some areas.

I was looking into an external DAC to eventually pair with the 203 over HDMI, but if Jae Hong Lee were to come out with a ES9038pro board for the 203, that would probably be an even better way to go.
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