1Solder sockets for the integrated circuits
2Test all soldered connections
- Test if all pins are well connected
- Check if GND is not short connected to Vcc
- Check if each IC has properly connected GND and Vcc
3Solder all passive parts
Pay attention, the Bravo contains two crystals, one for CPU,
marked Q1 with value 3.6864, one for serial port, marked “1.8432”
4Connect the power adapter and check
Insert the CPU into its socket (keep the proper orientation!) and try to power it up. Check if oscillator lives (at CPU pin 39).
Manipulate the CPU only with the power unplugged!
6Insert the essential ICs: 7400, 74138, 62256 and AT28C64.
Again: keep the proper orientation! Bad orientation can damage the IC!
7Connect the serial port
Connect the serial pins TxD, RxD and GND to the TTL-to-USB converter
Start the serial terminal on your PC, select proper serial port and set the parameters to 19.200 Bd, 8 data bits, no parity, 1 stop bit.
9Power it up!
Power your Bravo and check the terminal.
10Connect the rest of all