There are several methods employed by DAC designers to process user input commands and the incoming digital data stream. Some designs rely on hardwired connections with a fixed functionality, whilst others rely on software control that is either fixed, or can be updated or amended.   The latest generations of Beresford Digital to Analogue Converters use both hardware and software in order to get the best our of the DAC. This allows us to update a DAC quite easily in order to perhaps solve a technical issue, or give the DAC a performance boost. Firmware only modifications TC-7530DC TC-7533 TC-7534 TC-7535 & TC-7534 Fitting instructions: 1. Undo the four screws at the side of the case. There are two each side. 2. Remove the top cover of the DAC. 3. Look for the chip in the socket on the PCB right behind the LEDs. 4. Use a thin flat bladed screw driver to carefully lift the chip up half way on one end then half way the other end. Then repeat the procedure. 5. Remove the new chip from the plastic holder by using a flat blade screwdriver to push the chip out of the plastic holder. 6. Remove the aluminium foil from the chip, making sure not a single piece remains stuck to the chip. 7. Make sure that you fit the chip the right way round. The writing on the two chips should be the same way round when you do the swap over. The writing goes from left to right. 8. Remove old chip and replace with new one. 9. Put the original chip in the plastic holder that the new chip came in. Then put that away safely in case you need to revert back to it. My suggestion is to cellotape it to the side of the inside of the top case. But if you do that, dispose of the aluminium foil so that it doesn't accidentally short out anything inside the DAC. 10. In case you are not sure of something, get back to us for help before continuing!  

There are several methods employed by DAC designers to process user input commands and the incoming digital data stream. Some designs rely on hardwired connections with a fixed functionality, whilst others rely on software control that is either fixed, or can be updated or amended.   The latest generations of Beresford Digital to Analogue Converters use both hardware and software in order to get the best our of the DAC. This allows us to update a DAC quite easily in order to perhaps solve a technical issue, or give the DAC a performance boost. Firmware only modifications TC-7530DC TC-7533 TC-7534 TC-7535 & TC-7534 Fitting instructions: 1. Undo the four screws at the side of the case. There are two each side. 2. Remove the top cover of the DAC. 3. Look for the chip in the socket on the PCB right behind the LEDs. 4. Use a thin flat bladed screw driver to carefully lift the chip up half way on one end then half way the other end. Then repeat the procedure. 5. Remove the new chip from the plastic holder by using a flat blade screwdriver to push the chip out of the plastic holder. 6. Remove the aluminium foil from the chip, making sure not a single piece remains stuck to the chip. 7. Make sure that you fit the chip the right way round. The writing on the two chips should be the same way round when you do the swap over. The writing goes from left to right. 8. Remove old chip and replace with new one. 9. Put the original chip in the plastic holder that the new chip came in. Then put that away safely in case you need to revert back to it. My suggestion is to cellotape it to the side of the inside of the top case. But if you do that, dispose of the aluminium foil so that it doesn't accidentally short out anything inside the DAC. 10. In case you are not sure of something, get back to us for help before continuing!