Digital Audio (SPDIF) Mod
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(Created page with "Original guide adapter from a [https://web.archive.org/web/20170626072614/https://www.assemblergames.com/threads/saturn-dreamcast-toslink.57670/ post by citrus3000psi]. This guide assumes the DAC in your Dreamcast is a PCM1725. # Solder directly to the DAC. # Pull power and GND, but can be sourced anywhere. # Also Pin 7 on the TC9231N should get +5 [IMG] [IMG] [IMG] (also available for PS1 and 3DO)") |
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Original guide | Original guide adapted from a [https://web.archive.org/web/20170626072614/https://www.assemblergames.com/threads/saturn-dreamcast-toslink.57670/ post by citrus3000psi]. | ||
This guide assumes the DAC in your Dreamcast is a PCM1725. | This guide assumes the DAC in your Dreamcast is a PCM1725. | ||
== Required Materials == | |||
[ | * [https://oshpark.com/shared_projects/kvtStGOq Pep Audio 1.2 PCB] | ||
== Installation == | |||
[ | # On the top of the motherboard, solder wires from these four legs on the DAC to the matching pads on the Pep Audio board. | ||
## `DATA` on motherboard to `DAT` on Pep Audio PCB ('''not''' `DATA`!). | |||
## `BCK` on motherboard to `BC` on Pep Audio PCB. | |||
## `LRCK` on motherboard to `LRC` on Pep Audio PCB. | |||
## `MCLK` on motherboard to `MC` on Pep Audio PCB. | |||
## `+5` on motherboard to `5V` on Pep Audio PCB. | |||
## `GND` on motherboard to `GND` on Pep Audio PCB. | |||
#: [[File:Dreamcast_SPDIF_Mod_1.jpg|400px]] | |||
# Partially reassemble, snaking the board past the metal shield as shown below: | |||
#: [[File:Dreamcast_SPDIF_Mod_2.jpg|400px]] | |||
* Example completed install: | |||
*: [[File:Dreamcast_SPDIF_Mod_3.jpg|400px]] |
Revision as of 15:11, 15 July 2023
Original guide adapted from a post by citrus3000psi.
This guide assumes the DAC in your Dreamcast is a PCM1725.
Required Materials
Installation
- On the top of the motherboard, solder wires from these four legs on the DAC to the matching pads on the Pep Audio board.
DATA
on motherboard toDAT
on Pep Audio PCB (notDATA
!).BCK
on motherboard toBC
on Pep Audio PCB.LRCK
on motherboard toLRC
on Pep Audio PCB.MCLK
on motherboard toMC
on Pep Audio PCB.+5
on motherboard to5V
on Pep Audio PCB.GND
on motherboard toGND
on Pep Audio PCB.
- Partially reassemble, snaking the board past the metal shield as shown below: