Main cuircuit board
1. First step is to get the fixed programm code chip out and put in a socket.
Upper cuircuit board
Removed programm chip
Click on the photo to download the orig. hex file
ECU with socket for the programm chip
| pin | 2316E/ 2716/ 2732 | |
| 1 | Vpp | |
| 2 | A7 | |
| 3 | A6 | |
| 4 | A5 | |
| 5 | A4 | |
| 6 | A3 | |
| 7 | A2 | |
| 8 | A1 | |
| 9 | A0 | |
| 10 | O0 | |
| 11 | O1 | |
| 12 | O2 |
Pin 1-17 are standard data and address on all ROMs & PROMs.
| pin | 2316E | 2716 | 2732 | |||
| 24 | VCC | VCC | VCC | |||
| 23 | A8 | A8 | A8 | |||
| 22 | A9 | A9 | A9 | |||
| 21 | NC | Vpp | A11 | |||
| 20 | /CE | /OE | /OE-Vpp | |||
| 19 | A10 | A10 | A10 | |||
| 18 | CE | /CE | /CE | |||
| 17 | O7 | O7 | O7 | |||
| 16 | O6 | O6 | O6 | |||
| 15 | O5 | O5 | O5 | |||
| 14 | O4 | O4 | O4 | |||
| 13 | O3 | O3 | O3 |
2716 with a selfmade converting socket for testing purposes.
How to make the socket:
On PCB:
- Pin 18 is not connected
- Pin 21 is not connected
On 2716:
- Pin 21 connected to Vcc (5V)
- Pin 18 is connected to Pin 20
PCB: printed curcuit board
