COVOX
--------------------------------------------------------------------------------
LPT 25-PIN K572A1
-----------
2 >----|13| D/A |14|----*-------------------*---> +6..15v
3 >----|12| |15|----- |
4 >----|11| |16|---------------------- |
5 >----|10| | | ----------- | |
6 >----|09| | | | | |06|--*--+---> OUTPUT
7 >----|08| |01|------o02| |07|------
8 >----|07| | | ---|03| |04|---------> -6..15v
9 >----|06| | | --- -------------
--|05| | | | | K1406
*-|04| | | --5.1k
*-|02| |03|---*
18 >--* ------------- |
--- ---
-------------------------------------------------------------------------------
(MONO)
Zn426e +5V
D-type pin no \ ---------- |
(2) D0 ---|9 14|--|
(3) D1 ---|10 | ---
(4) D2 ---|11 | | | 390
(5) D3 ---|12 | --
(6) D4 ---|13 5|--|
(7) D5 ---|1 6|--| +
(8) D6 ---|2 4|--|--------|----> TO AMPLIFIER
(9) D7 ---|3 7 | | 10F
--------- += (may not be needed)
| 4.7F
| |
(25) GND ------------------------------ GND
-------------------------------------------------------------------------------
(MONO)
DAC 080x
Parallel Port Pin ----------0.01F 0.1F
(2) D0 ---|12 16|--|----|--------- GND
(3) D1 ---|11 | |
(4) D2 ---|10 15|-----------5k
(5) D3 ---|9 |
(6) D4 ---|8 14|-----------5k
(7) D5 ---|7 13|----------------|
(8) D6 ---|6 2|--|--------------- +5V
(9) D7 ---|5 3 1 4|----------|----> TO AMPLIFIER
--------0.1F + 10F
--| (may not be needed)
|
(25) GND ----------------------------- GND
-------------------------------------------------------------------------------
(MONO)
signal pin 20k 20k
D0 2 >-------0v
20k 10k
D1 3 >----|
20k 10k
D2 4 >----|
20k 10k
D3 5 >----|
20k 10k
D4 6 >----|
20k 10k
D5 7 >----|
20k 10k
D6 8 >----|
20k 10k
D7 9 >----|
20k 10k 100nF
|------|----> TO AMPLIFIER
10k
GND 20 >-------+------------>
0v
-------------------------------------------------------------------------------
(STEREO)
ZN428
---------------- 390
------------------|11 6|--------+5v
| ----------------|12 7|-- |
| | --------------|13 3|NC |
| | | ------------|14 | | + 10F
| | | | ----------|15 5|------|---||-----> Left out
| | | | | --------|16 | | 0v--->
20 >-0v | | | | | | ------|1 10|--+5v |
| | | | | | | ----|2 9|--0v |
14 >----|-|-|-|-|-|-|-|---|4 8|-- |
| | | | | | | | ---------------- |
11 >----| | | | | | | | ZN428 | + 1F
| | | | | | | | ---------------- |---||-0v
9 >------|-|-|-|-|-|-|---|11 D7 VRIN 6|-------
8 >--------|-|-|-|-|-|---|12 D6 VROUT 7| NC
7 >----------|-|-|-|-|---|13 D5 NC 3| NC
6 >------------|-|-|-|---|14 D4 | + 10F
5 >--------------|-|-|---|15 D3 OUT 5|---------||-----> Right out
4 >----------------|-|---|16 D2 | 0v--->
3 >------------------|---|1 D1 +V 10|--+5v
2 >----------------------|2 D0 0v 9|-0v
1 >----------------------|4 !EN 0v 8|--
25 pin male D connector ----------------
Notes: -|- = No connection, -+- = joined
EK> A/D -
EK> ?
. '' '' //.
,
. , .
