Another exciting moment this week: We have the samples of the Revision 3 PCBs for the MEGA! Pretty pictures follow, along with some discussion along the way.
First up, we can see that the PCB is quite similar to the Revision 2. In fact, it has as few changes as we could get away with, while fixing various niggly little problems:
We'll cover some of these things a bit more in some of the photos coming up, but we can see here that there is an extra 2-pin connector on the right hand-side, so we can now support stereo internal speakers, complete with 2W amplifier, so you don't need to worry about having a monitor with speakers if you want to kit your MEGA65 out for easy party use:
A bit closer view of some of the connectors. The keen-eyed will notice some changes to the digital video output area: We have changed from the ADV7511 display driver to directly driving the digital video from the FPGA, to solve problems we had with sound on the ADV7511. The 3.5mm audio jack also has the pinout corrected, and works for stereo output straight up now:
The power switch and cartridge port area has been reworked to allow more room for super-wide cartridges, as well as adding missing pull-ups to the cartridge port and joystick ports: