PDX2000 Firmware Upgrade

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The PDX2000 and PDX3000 turntables are very similar in terms of circuitry - really the only difference is in the main MCU.

The main guide is in this video.

  • Modify the main circuit board :
    • Replace the MCU (QU01) with a HD64F3052F25 (available used from utsource)
    • Replace the Crystal (XU01) with a 25MHz one
    • Cut this trace on the bottom of the board to disconnect pin1 from VCC :
      • Cuttrace.png
  • Build a programming cable using an 8-pin JST PH connector and some dupont wires, this is the wiring for it :
    • Wiring2.png
  • Connect a USB-TTL serial adapter to your PC, and connect it to JU05 (FLASH) on the Vestax PCB using the cable you just made
  • Install the renesas flash tools - you want the "[Evaluation Software] Flash Development Toolkit V.4.09 Release 03"
  • Run Flash Development Toolkit 4.09 Basic.
    • Go to "Options->New Settings" (it might automatically do this the first time you start it)
    • Type "H8/3052" in the filter box and select the first option in the list, click next
    • Select the COM port of your USB serial adapter (you can find this in Device Manager), click next
    • Set the CPU crystal frequency to 25MHz, click next
    • Make sure BOOT Mode and Use Default is selected, click next
    • Click Finish
    • Download the modified PDX3000 firmware, and load it into the "User/Data Area" box of the Flash Development Toolkit
    • Click "Program Flash", it will take 10 seconds or so.
    • If all is ok, it will say "Image written to device" in green - if not, check your connections and soldering