TOSLINK and SPDIF carry essentially the same data. For more details, see the schematic TOSLINK and SPDIF input (to panel) Below is a brief description of each of them. The IO interfaces on the board can be categorized into 4 units. *** Goes to 87LPC762 one-time programmable microcontroller ** Goes to an unknown Q2 which seems to be enabling an additional * Connected to M3 pin of CS4392 DAC driving headphones. I2S System clock, word select and bit clock lines are shared between Headphones DAC MODE (*)đ1 12 (Unknown TOSLINK out control signal) (**) Has higher priority (SPDIF input disables optical input). SPDIF input over RCA jack or OPTICAL IN over TOSLINK. SPDIF OUT is the same signal as OPTICAL OUT. Note: SPDIF I/O is shared between SPDIF and TOSLINK. IN and OUT are from the panel's perspective You can see what signals and what ICs drive which outputsĪpart from the schematic, below is the pinout of the J1 pin header: This is a simplified schematic of the internals of the front panel. I jumped the SPDIF output pin to the SPDIF input pin, and was surprised to see (and hear) the audio signal on the headphone output (precisely, on one of the pins of the volume potentiometer). Then I traced the S/PDIF input to the CS8415A back to the pin header. The first success was feeding the panel power and a TOSLINK (that is optical) signal, which then I was able to see on the oscilloscope on the pin header (as an electrical signal). Then, looking at U17 (CS8415A - S/PDIF to I2S converter) and U19 (CS4392KZ, I2S DAC) that was right next to it has formed the next fragment of the overall picture. I have also traced the TOSLINK input to a pin on the pin header. They were off the shelf converters, ADCs and DACs which was the first hint that the 40 pin header carried regular digital audio streams.
CREATIVE AUDIGY 2 ZS MODDED DRIVERS HOW TO
At first I wanted to find out how to drive the headphone output, but eventually I reversed the entire audio related part of the front panel. After a closer look at home, I realized it was a self contained digital audio interface. I was looking for a parts source for future audio related projects and after talking to the person who ran the stand I was a happy owner of the panel with 30 PLN less in my pocket. Initially, it was the golden connectors that caught my eye in the pile of electronics junk. I've purchased the front panel two years ago, with no card. I talk about S/PDIF and I2S, as well as show them on the oscilloscope: Why all of this? The second one is directed at more intermediate audience and shows the signals as seen through the audio signal path of the headphone output. The first one is shorter and gives you a general look at the device: I have made two videos about the front panel. Click this image to see a larger version, this works for all images on this page Videos MIDI input and output over mini-DIN connectors.One analogue headphones output with volume control.Two analogue inputs, one Line or Mic in (1/4" jack), one Line in only (RCA).One digital output, over S/PDIF or TOSLINK.One digital input, over S/PDIF or TOSLINK.The front panel allows you to access the following interfaces: The panel would connect back to the card via a ribbon cable, and allow the user to access many IO ports of the card in a comfortable way. The Audigy 2ZS came in different form factors, and the PCI version had an optional front panel that would go into a 5.25" bay of the PC. The cards were launched in 2003, but the copyright date on my PCB says 2002.
The SoundBlaster Audigy 2ZS was an audio card designed by Creative. Audigy hacks Soundblaster Audigy 2 ZS front panel hacks Reverse engineering a quality piece of audio hardware that holds more
0 kommentar(er)
