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Hotrodding the X-Fi: A Layman's Guide (No 56k) - Page 59

post #871 of 2194
I have two cards and one is for sale. It has LM4562 for the front channels, 4x22 uF Elna Silmic II's and 1000 uF Elna Silmic II.
post #872 of 2194
Quote:
Originally Posted by sil0nt View Post
I am interested in these mods for my X-Fi, but I don't have any way to get them done due to lack of workspace and lack of time. Is anyone modding these cards as a service? I have bulit in sound on the motherboard, so I could be without the card for a couple of weeks.
Kamal has his for sale here
http://www.head-fi.org/forums/showthread.php?t=244514

I modded his card for him, but he decided it just wasn't for him and is trying something else. You can pick that card up from him, or I could mod one for you.
post #873 of 2194
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post #874 of 2194
Anyone have got a chance to compare the modded X-Fi to the EMU 0404USB in terms of sound quality?
post #875 of 2194
Can I ask if anyone knows a reasonably placed price where I can buy the LM4562MA-ND op-amps from in the UK ... Digi-Key costs as much in shipping as the actual goods!

I need enough for all 7.1 channels, which I believe is 4?

Cheers

Ade

edit: or any of the other op-amps that are recommended in this thread, that aren't too expensive!
post #876 of 2194
Quote:
Originally Posted by ade1982 View Post
Can I ask if anyone knows a reasonably placed price where I can buy the LM4562MA-ND op-amps from in the UK ... Digi-Key costs as much in shipping as the actual goods!

I need enough for all 7.1 channels, which I believe is 4?

edit: or any of the other op-amps that are recommended in this thread, that aren't too expensive!
You could try to get samples from national semiconductor directly, or 8599 from analog devices which is an excellent alternative. AD also sells them in small amounts I think if you're not eligible for free samples.
And yeah you'd need 4 opamps, 5 if you want to do the line in aswell.
post #877 of 2194
ok, i finally got the courage up to do this mod. i removed old op am. used a copper wick to remove solder and insteat of eight pads to solder to i only have 7. the bottom right hand corner pad is missing. i tried to solder new op amp on anyway but it isnt working right. no left channel. of course this is my first foray into soldering. did i burn off the pad on board? is there anyway to fix this? boy do i feel stupid right now.
post #878 of 2194
Thread Starter 
Quote:
Originally Posted by theBigD View Post
ok, i finally got the courage up to do this mod. i removed old op am. used a copper wick to remove solder and insteat of eight pads to solder to i only have 7. the bottom right hand corner pad is missing. i tried to solder new op amp on anyway but it isnt working right. no left channel. of course this is my first foray into soldering. did i burn off the pad on board? is there anyway to fix this? boy do i feel stupid right now.
you can fix it easily, just find out where the missing pad is supposed to connect to. it's probably one of those tiny SMD parts nearby.
post #879 of 2194
what do you do, run a solder bridge to that part?
post #880 of 2194
Thread Starter 
Quote:
Originally Posted by theBigD View Post
what do you do, run a solder bridge to that part?
yes, or a little wire
post #881 of 2194
Quote:
Originally Posted by phalanger View Post
You could try to get samples from national semiconductor directly, or 8599 from analog devices which is an excellent alternative. AD also sells them in small amounts I think if you're not eligible for free samples.
And yeah you'd need 4 opamps, 5 if you want to do the line in aswell.
Cheers mate. That's very much appreciated.

I got to this page, and then I am stumped. I am looking for the MA SOIC Narrow?

http://www.national.com/pf/LM/LM4562.html#Availability

What does the 24-hour sample mean? That they will burn out after 24 hours?? And if the lead time is 6 weeks, does that mean it will take 6+ weeks to get to me? I would be comfortable buying them if it's that sort of time-frame, and it doesn't cost me £40 / $80!!

Cheers guys.
post #882 of 2194
@4hrs, means you an oder them 24hrs a day. 6weeks lead time usually refers to any type of large order I would think.
post #883 of 2194
Quote:
Originally Posted by ade1982 View Post
Cheers mate. That's very much appreciated.

I got to this page, and then I am stumped. I am looking for the MA SOIC Narrow?

http://www.national.com/pf/LM/LM4562.html#Availability

What does the 24-hour sample mean? That they will burn out after 24 hours?? And if the lead time is 6 weeks, does that mean it will take 6+ weeks to get to me? I would be comfortable buying them if it's that sort of time-frame, and it doesn't cost me £40 / $80!!

Cheers guys.
Yes the SOIC narrow is the one you want. 24h just means they send it within 24h or something along those lines. The opamps are not self destructive :P
And no it doesnt take 6 weeks, it should arrive worldwide within a week from ordering. The 6 weeks applies for large orders. You want sample-orders, the blue button.
post #884 of 2194
Re: the guy who found 7 pins instead of 8. hate so say we told you so but, sidecutters :S but one missing connector isn't too bad, the easiest way to trace it is with an XFi that doesnt miss the connector, unless you can somehow still touch the contact with a multimeter. I located the one for MrDerrick that way, if you point out your missing pad on the macropic that was posted earlier, someone can easily check it for you which of the little SMDs it should go. I think it's someone elses turn this time though :P
post #885 of 2194
anybody know where bottom right hand leg of 4562 in first picture on ops post is supposed to be wired to? im missing the pad for that leg. i floated a bit more solder in to try to make contact now i get really tiny sound from both channels instead of just one. not really sure what to do next. i shorted the four caps from illustration. and replaced op-amp. havent changed cap to blackgate yet. just hoping for some guidance i guess. i am a complete newb this is my first soldering project. thanx for your help. on the bright side i do seem to be getting the hang of soldering and especially desoldering.
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