PDX2000 Firmware Upgrade
The PDX2000/PDX2300 and PDX3000 turntables are very similar in terms of circuitry - really the only difference is in the main MCU.
- Modify the main circuit board :
- Replace the MCU (QU01) with a HD64F3052F25 (available used from utsource)
- Replace the Crystal (XU01) with a 25MHz one
- (If you have a PDX2300) add the components RU02 (4.7KOhm) and RU27 (100Ohm). (Or just bridge their pads with solder, that's probably OK too)
- Cut this trace on the bottom of the board to disconnect pin1 from VCC :
- Build a programming cable using an 8-pin JST PH connector and some dupont wires, this is the wiring for it :
- 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 THIS FILE FOR PDX2000 or THIS FILE FOR PDX2300, 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