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Hotrodding the X-Fi: A Layman's Guide (No 56k) - Page 134

post #1996 of 2194
hi people new guy here
i have the x-fi platinum with the 5.2" bracket and i wanted to ask if someone modded this expansion "slot" too with other opamps? because i connected my dac thru the optical out on the bracket and i read that the sound doesnt change when you mod the card but connect the dac on the expansion slot..
any opinions?

regards D.
post #1997 of 2194
Quote:
Originally Posted by DL84 View Post
hi people new guy here
i have the x-fi platinum with the 5.2" bracket and i wanted to ask if someone modded this expansion "slot" too with other opamps? because i connected my dac thru the optical out on the bracket and i read that the sound doesnt change when you mod the card but connect the dac on the expansion slot..
any opinions?

regards D.
swapping the opamps wont effect the quality of the optical out. swapping the power filter capacitor and or using ERS paper should make a difference to the optical (digital) quality anyway.
post #1998 of 2194
Double post, sorry.

Sobi
post #1999 of 2194

Fail on Elite Pro

Hi guys,

Been longing to do this mod since may...what a fail. I've shorted C63 on my elite pro because I though it was a decoupling cap :smack:

Does anyone now what kind of a cap should I put into there best ? Sound's not working by the way on any channel on analogue, can't try optical.

I've stole this pic from bichi since I don't have a good camera to take a photo of mine, It shows what's shorted on mine:



Please somebody help and let me know of a good, acquirable in the UK cap to get.

Cheers
Sobi
post #2000 of 2194
Keeps double posting for some reason, my pc does, really sorry. Since I don't know how to delete posts, maybe a moderator could do something about them, this one included.

Really sorry
Sobi one kenoby
post #2001 of 2194

Found the cap ! after 2 days...

Okay found out that it is a Kemet TANTalum 33uf @ 15vdc cap. Anybody knows something similar in the UK ?

Would appreciate any input

Cheers
Sobi
post #2002 of 2194
sobi123:
- stock capacitor is: Jamicon SS 47uf @ 16vdc; 85c (size: DxL; 5mm x 7mm) (board position: C63)
- the picture you posted shows modified components.
- some possible electrolytic (not tantalum) replacements:
Panasonic FC; PN: EEUFC1C470 (DxL; 5mm x 11mm) 3mm taller.
Nippon ChemiCon LXZ; PN: ELXZ160ESS470MEB5D (DxL; 5mm x 11.5mm) 3.5mm taller.

- take a look around MALPIN, UK based electronics shop:
http://www.maplin.co.uk/Module.aspx?ModuleNo=402
post #2003 of 2194
Quote:
Originally Posted by bichi View Post
sobi123:
- stock capacitor is: Jamicon SS 47uf @ 16vdc; 85c (size: DxL; 5mm x 7mm)
- (board position: C63)
- some possible replacements:
Panasonic FC; PN: EEUFC1C470 (DxL; 5mm x 11mm) 3mm taller.
Nippon ChemiCon LXZ; PN: ELXZ160ESS470MEB5D (DxL; 5mm x 11.5mm) 3.5mm taller.
Can you tell me about that little filter board you made?
post #2004 of 2194
ROBSCIX:

- its a Bessel 3-pole LPF, designed to direct-couple to the Cirrus CS4398 differential outputs.
(as opposed to stock 2-pole Butterworth)
- schematic and details in the last "Esnips" link below:

X-FI-MOD-120-Carrier-02.jpg - eSnips, share anything
X-FI-MOD-121-Carrier-03.jpg - eSnips, share anything
X-FI-MOD-122-3pole Bessel-04 - eSnips, share anything
post #2005 of 2194
I was looking over those pics, I did not realize there was schematics there. I wanted to send you a PM to discuss the desing but I geuss you don't like PM's huh?
Thanx for the info.
post #2006 of 2194
Thanks bichi for the schematic, I would like to try those too. Currently I made circuit based on CS4398 datasheet, its good to see someone makes new filters
post #2007 of 2194

That was quick !

Thank You Bichi, You're a lifesaver !

Will get back on board to say how it sounds after accompanying LD MKIII

Sobi123
post #2008 of 2194
Posted this on other forums and thought to post it here, maybe i'll get an answer.

I posted some time ago that I modded my Xtreme Music.
One day I wanted to know how does it sound with the coupling caps shorted (I have Elna Silmic II) and I didn't like the sound because the highs were too "high". I reverted things back to normal and the sound remained the same.
After this I put only wire in place of the caps. Still, the sound remained the same. After this I found some 22uf/10v Rubycons (new) and I thought to put those on.
Anyway, I didn't like the sound with the Rubycons either so I put the Elnas back. And I had a surprise. The sound was very very distorsioned.
I went to a local gsm service and told the guys there to remove my op-amps (I have LME49860). They did so and they told me they also had re-soldered the coupling caps. When I arrived home the distorsion was gone, but I had no sound on the front channels.
I have some questions for the modding enthusiasts on this forum:
1. Is it normal not to have sound on front channels without opamps?
2. What do you think that could have gone wrong?
3. Is there any way to fix my card?
Only the analog output is affected, the digital works fine.
post #2009 of 2194
1) i'm not sure how the circuit in the x-fi is, but on my audigy 2, when the front opamp was removed, there was still sound, just very faint. it had not been amplified, though the fact that sound is present means the circuit was still complete somehow. on the x-fi, removing the opamp may leave the circuit open.
2) lots of things. you may have shorted something, overheated/fried something, there could have been bad solder joints, etc.
3) possibly. if there is no damage to the card, simply replacing the opamps may fix it.

only analog would be affected, the digital portion is a completely different circuit.
post #2010 of 2194
I tried replacing the opamps. But on the front I've put the one that was on the line in and the other channels are opamp-less. That's the way it is now and still the sound sucks.
Is there the possibility that all opamps were gone during the modding?
Should I use a new opamp?
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