Tim,

If you have purchased the board within a month or two you have the latest board! If you are going to post trouble shooting on the forum you need to go step by step! The only thing that we cannot see from the pictures is the connection for your 3 line cable, iare those lines correct! Did you take a multimeter and check continuity from the DBU board through your connector to the DBC board for the 5 connection lines? Do the same thing with the three lines that go to and from your Heng long board, are you getting 5 volts off your heng long board? Is that connetion correct to the Heng Long board? The IC controls everything but it is very robust and if it is seated correctly it is probably not that! If you do all these checks and all is well and you don't have another system to test and compare, then get a chip from David!

The Blitz