Input circuit protection
Input circuit modifications planed:
- remove the input fuse as it is too slow to handle surge current before the protection diodes and/or the CDCLVC1102PW dies...
- replace R10 by 1.2kOhm
- replace the protection diodes by BAS31 that has better caracteristics
than BAR66.
- replace the three 150Ohms termination resistors (1206 case) by one
51Ohms 0.75 (2010 case). The 2010 case takes less place than three
1206...