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Hotrodding the X-Fi: A Layman's Guide (No 56k) - Page 47

post #691 of 2194
Quote:
Originally Posted by McKebapp View Post
Could anybody please be a little preciser?
I also wasn't able to get more than three LM4562MA. I use a 7.1 Teufel Concept G THX System but the side speakers aren't used that much, so that I can leave them with the old oamp.

Unfortunately the side speakers are divided on two jacks (see attachment).

Or does anybody have a fourth LM4562MA for me?

Hmm... I'll receive my LM4562MA's tomorrow. Do you guys think, that a try&error method will help with my/our issue?

I'd solder one IC out, reinstall the soundcard to my rig, and listen which pair of speakers don't work anymore. Then I'd do this with the second one, and so on.

Or will this damage my soundcard, if I run it without one IC?

Thnx,

McK

(please excuse my poor English )
post #692 of 2194
Quote:
Originally Posted by cotdt View Post
do you have pictures?
No, but I can take them and upload later today when I get home from work.
post #693 of 2194
Ok, so my XtremeMusic arrived today.. after the drivers have finished downloading I'll pull the A2ZS, do a little visual comparison, then put the X-Fi in my main rig...

I've read the thread from start to finish now, and the opinion on the power capacitor seems to have changed throughout the course of the thread. I seem to get the impression that a 470uF standard polarised Blackgate would be the most suitable replacement. Is that right?

The op-amp ICs are a bit bigger than I thought they'd be. It'll be an easier job than the graphics cards voltmods I've done in the past anyway lol.

Edit:

Ok, I just looked at the A2ZS and it has the same CS4382 DAC, same JRC 4556A main op-amp and same three ST4558C surround op-amps... it even has the same 33078 input IC... So I guess it's fairly safe to assume that this X-Fi mod could be done on the A2ZS (pending the identification of the power capacitor)
post #694 of 2194
@hardnrg, Your saying the Audigy 2 ZS has the same parts as the X-fi?
but yeah you can mod any soundcard aslong as you know which parts are which. Your just putting in better parts.
post #695 of 2194
they appear to have the same 8-channel DAC and op-amps... it's actually widely documented... I just wanted to confirm it by eye for my own cards and pose the question
post #696 of 2194
So really the only difference between the Audigy 2 ZS and the X-fi are the DSP chip and filter capacitors? -Interesting I didn't know that. YOu have links to any info showing this?
Not trying to get offtopic...just didn't know that...
post #697 of 2194
you only have to look at the cards to see they have these components in common... I found this information around on the internet for both cards before I looked however...

Anyway, my point of this is that I'm going to be hand-me-downing my A2ZS to my downloading/htpc rig to replace the rather uninspiring SB Live 5.1 Digital (Dell OEM SB0220 nightmare, not EMU10k1) so upgrading the op-amps and power filter cap would be a nice pick-me-up for the hand-me-down
post #698 of 2194
Yeah, If you upgrade the opamps and power cap on the A2 it's gonna sound alot better.
post #699 of 2194
where do you get the lm4562 op-amp? i tried the link at the begining of the thread and i can find the part but now it seems they have 24hr samples. does that mean you only get to try and return? also they want you to log in and that seems to time out for me. ive been grazing this thread for a while now, i am a complete noob to soldering, so ive been pretty nervous about doing this but i think i am ready to try. thanx for your help.
post #700 of 2194
Quote:
Originally Posted by theBigD View Post
where do you get the lm4562 op-amp? i tried the link at the begining of the thread and i can find the part but now it seems they have 24hr samples. does that mean you only get to try and return? also they want you to log in and that seems to time out for me. ive been grazing this thread for a while now, i am a complete noob to soldering, so ive been pretty nervous about doing this but i think i am ready to try. thanx for your help.
the 24hr samples is where you can order the free samples. You can get a max of 3 and you might have to pay S/H.

I wouldn't advise you do this mod if you don't have much soldering experience. The card acts like a heatsink and is a PITA to solder at times. Also, SOIC op-amps aren't exactly beginners level.
post #701 of 2194
ok i just ordered 3 sample lm4562 opamps. i am also getting a govibe v5s, and op amp rolling with it will the lm4562 roll into the govibe? does it need to be soldered onto an adapter? i am thinking i could practice a little soldering this and rolling into govibe.
post #702 of 2194
Quote:
Originally Posted by McKebapp View Post
Hmm... I'll receive my LM4562MA's tomorrow. Do you guys think, that a try&error method will help with my/our issue?

I'd solder one IC out, reinstall the soundcard to my rig, and listen which pair of speakers don't work anymore. Then I'd do this with the second one, and so on.

Or will this damage my soundcard, if I run it without one IC?

Thnx,

McK

(please excuse my poor English )

O.k.. Even if nobody didn't answer, I made my try and error method. The soundcard still works. With the missing IC, the two "missing" channels only were a little more quiet then with soldered IC!? Are there any more IC mods for the complete analog stage?

Unfortunately I discovered this:


Now, after all, I've changed every IC, except the one for "side left + subwoofer", 'cause I've only three 4562MA's.

Is there anybody out, willing to sell me a fourth one _please_ ?
post #703 of 2194
Quote:
Originally Posted by Pm@c View Post
Nobody is really answering my question. Im asking if I should try to resolder the capacitor because I didnt do the best of job soldering it. Its a really sketchy soldering job and Im wondering how I would know if the capacitor was soldered correctly. Would the card not work or just sound worse? What does the capacitor mod do so that I can know if I soldered the capacitor correctly. Please PLEASE PLEASE PLEASE read my question and answer it, I know its difficult but please can someone just answer me.
If the soundcard works fine then its probably connecting well enough to work.. But ofcourse its not really a desirable way to attach a capacitor. You could try carefully drilling out the hole with a precision drill (from both sides to reduce the chance of damage to the board). you can also try to use a piece of metal (like a spare capacitor leg), bend it into an L shape and press it into the hole with your solder iron (on hot). if its only stuck there cause theres nothing to pull or push on that should work, if cutting it off has made it get *really* stuck then you might have to drill it out.
post #704 of 2194
maybe you can try useing a multimeter and measure if there is any resistance from the leg of the capacitor to the other side of the board... i'm not sure if this method is reliable.. but it's better then nothing.. ^-^
post #705 of 2194
I used a 1mm drill to drill out the capacitors holes. I bought a solder pump after I did the mods =)
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