+---------------------------------+
+ HOW YOU CAN USE A SOUND BLASTER.+
+---------------------------------+
Let's start by finding the very best sound, let it be
burnt, main to amplifier on not alive was, here is this one
amplifier we and use... A where to find it? Yes, at least where, and
very cheap, you can find something similar in any computer store
junk (for example we can easily do this for 20 rubles
spoil).
I foresee a question: "A what do you need? I have a super-duper
amplifierand speakers 300 watts, everything sounds great." I will answer: YOU,
yes yes, YOU don't need it...
I had me an ESS SOLO-1 audio speaker, and as a result, short circuit.
died she was in the Bose (or somewhere there) the chip was torn apart like a canary,
Only the amplifier (TEA2025) survived, I spent a long time looking for its circuit diagram
connection, I never found it, but suddenly it just dawned on me, fuck it
look, because everything is already assembled there, on the board, all that remains is to find where
attach the AY outputs. Well, after fiddling around for half an hour, I connected everything
this now there is normal sound in the headphones, not a whisper. Came to
my friend, he checked out this chip, he says that he also has
killed sound, and he not against apply it in this
direction that in and was done. And now
got to the tasty stuff, how it’s done...
I'll start with those the most ESS's, they cost at least two
mikruhi, one is a chip (plank with a bunch of legs) the other is an amplifier (in
DIP case), well, maybe a couple more small logic devices, an amplifier
determined without error by electrolytic capacitors
who are crammed around him. First of all, they bite out at four
extra chips for dogs, thenintellectual begins
work: let's look at the board, it has two jumpers, which
switch the linear output/output from the amplifier, they look like this:
from the middle contacts the ends go directly to
output jack, a from the extreme one pair to the exit
amplifier, other output chip, usually via
divider and a capacitor, these are the outputs you need
connect AY-shku (chip outputs, of course). For
ESS`ok they are located on corner chip, well, the power supply is
much simpler, by slot pacnuhobke (ISA or
PCI). Sometimes instead 12 V can be supplied
5 V, if at this sound picture not
is distorted.
Sound speakers have chokes at the output,
which has a pretty good effect on
sound, so this is a good thing...
Angle where to look ^ On other cards, in principle, everything is the same,
if there are no jumpers, then everything is called from
output jack. Well, if you're really crazy, I recommend this book:
E. Turuta L. Danci "Integrated circuits - amplifiers
LF power" Publishing house "Virginia" 1994
In about 800 microcircuits are described and their typical circuits are given
inclusions. She looks so small and redцвета.
Теперь все-таки про питание:
ISA
D18 D1 В31 В1
+----------+-------------------------+
+----------+-------------------------+
C18 C1 A31 A1
GND - В1, В10, В31, D18
+5V - В3, В29, D16
+12V - В9
-5V- B5 (just in case)
-12V - B7 (just in case)
PCI
C PCI is somewhat confusing, there are cards with a power supply of 5 V, 3.3
There are also universal and 32-bit and 64-bit cards.
B94 B62 (50,51) (12,13) B1
+-----------------+--------+---------+---------+
+ 64 bit + + 32bit + +
+-----------------+--------+---------+---------+
A94 A62 +-ключ 5V ключ 3,3V -+ A1
GND - A:12,13,18,24,30,35,37,42,48,50,51,56,63,69,72,78,81,
87,90,93
В:3,12,13,15,17,22,28,34,38,46,49,50,51,57,64,67,73,
76,82,85,91,94
+5V - A:5,8,61,62 В:5,6,61,62
+12V - A2
+3,3V - A:21,27,33,39,45,53 В:25,31,36,41,43,54
-5V - bottom
-12V - B1
The key is a cutout in the board at the location of the contacts indicated
in brackets, universal boards have both cutouts.
This is described only for BK-04, in theory I know how to do it
quorum-64, but I didn’t check it, so I’m not writing...
Share your thoughts about the article
No comments yet.