Download
Share
Print this page
Retroaktiv Super JX Programmer MPG-70 Owner's Manual
  1. Manuals
  2. Brands
  3. Retroaktiv Manuals
  4. Controller
  5. MPG-70
  6. Owner's manual

Retroaktiv Super JX Programmer MPG-70 Owner's Manual

Hide thumbs Also See for Super JX Programmer MPG-70:

Advertisement

Quick Links

Download this manual
MPG-70 DIY KIT BUILD GUIDE
VERSION 1.0

Advertisement

loading
Need help?

Need help?

Do you have a question about the Super JX Programmer MPG-70 and is the answer not in the manual?

Questions and answers

Related Manuals for Retroaktiv Super JX Programmer MPG-70

Summary of Contents for Retroaktiv Super JX Programmer MPG-70

  • Page 1 MPG-70 DIY KIT BUILD GUIDE VERSION 1.0...
  • Page 2 This guide is intended to help guide builders through the process of assembling, pro- gramming, and testing the Retroaktiv MPG-70 Super JX controller DIY kit. This kit re- quired soldering skills, and the ability to read schematics, a bill of materials, and identify SMD parts.
  • Page 3 RETROAKTIV MPG-70 OWNER’S MANUAL The ATMEGA128 PCB footprint. The Atmega128 has 3 dots imprinted on the top of the casing. These dots form a tri- angle that points to pin 1, which is indicated by the center dot. The center dot on the processor should match with the pin 1 indicator dot as shown above.
  • Page 4 RETROAKTIV MPG-70 OWNER’S MANUAL Resonator soldered in place. • STEP 2 - ICs Next, solder the 6 CD4067s, the CD4051, the two OPA opamps, the 74LS04, and the op- to-isolator ICs. Take care not to leave flux around the pins of the ICs, especially on the CD4067s, as this will cause erroneous readings.
  • Page 5 RETROAKTIV MPG-70 OWNER’S MANUAL • STEP 3 - DIODES, RESISTORS, INDUCTORS, FUSE, & CAPACITORS Next, we move on to soldering the resistors and capacitors. Use the BOM to locate and solder all resistors and capacitors. Note that R100 and R112 (the resistors that set the regulator output voltage) are 0805 resistors.
  • Page 6 RETROAKTIV MPG-70 OWNER’S MANUAL • STEP 5 - LARGE INDUCTOR & FILTER CAP Finally, solder the large inductor and the 680uF filter cap in the PSU. Note that you must use a fair amount of solder to attach the large inductor to the pads. Be generous with the solder here.
  • Page 7 RETROAKTIV MPG-70 OWNER’S MANUAL All pots and sliders installed. • STEP 8 - ATTACHING PANEL Next we must prepare the front panel for attachment to the PCB. Begin by gathering the 5 long screws, the 5 threaded standoffs, and the paper spacers. Depending on the kit, you have either blue paper spacers or brown cardboard spacers.
  • Page 8 RETROAKTIV MPG-70 OWNER’S MANUAL...
  • Page 9 RETROAKTIV MPG-70 OWNER’S MANUAL Now it is time to prepare the screen to be placed. The screen has 4 pins that must be trimmed to be flush with the PCB. This is so the pins do not make contact with the met- al front panel.
  • Page 10 RETROAKTIV MPG-70 OWNER’S MANUAL Now place the screen, the encoder, the tall trimmers, the switches, and the 3 LEDs. Do not solder yet. Just fit them in their respective holes. Once all parts are placed, place the switch caps on the switches. Be sure that the switches are placed flush with the board and NOT AT AN ANGLE.
  • Page 11 RETROAKTIV MPG-70 OWNER’S MANUAL Solder in place and clip the leads. Note that LEDs should be places with the long leg in the round hole and the short leg in the square hole. It is recommended that you solder one leg of each LED first, then make your height adjustment, and solder the remaining pin when the LED is placed correctly.
  • Page 12 RETROAKTIV MPG-70 OWNER’S MANUAL Finally, test the movement of the 2 tall trimmers. They should be easy to move. If they are not, adjust their positioning so they are not chafing the panel and they move freely. Solder into place.
  • Page 13 RETROAKTIV MPG-70 OWNER’S MANUAL then you will need to rebuild the cable. Strip 2mm of insulation off of each end of the 5 colored wires. Tin the ends to the stranded wire will not fray. Use a drop of flux on pins 1, 3, 4, 5, and 6 (omit pin 2) of the male plug and load each pin with solder.
  • Page 14 RETROAKTIV MPG-70 OWNER’S MANUAL Next, connect your ISP connector to the MPG70 board, oriented so that the red strip (pin 1) lines up with the PIN1 indicator dot on the MPG70 board as shown below. When conn- cected, apply power.
  • Page 15 RETROAKTIV MPG-70 OWNER’S MANUAL avrdude.exe -p m128 -c usbtiny -e Now we must load the new EPROM data. Replace the MPG70EPROM1V2.bin in the next line of code with the exact (case sensitive) name of the EPROM file you received. Hit enter to load EPROM.
  • Page 16 RETROAKTIV MPG-70 OWNER’S MANUAL • TROUBLESHOOTING If you are experiencing technical issues with your build, this section can help to identify common failure modes: Jibberish on screen: Repeat the 5 step programming procedure. If you see odd charac- ters being displayed, then chances are that your EEPROM file didn’t program correctly.