Installation of the Hardware Watchdog System (HWWD) update.
Yesterday the ITMY/ITMX ISI coil drivers were replaced.
S1103345, S1103335, and S1103350 in SEI-C4.
S1103357, S1103341, and S1103334 in SEI-C6.
New units have the following modifications complete:
1. HWWD keep alive BNC back panel modification and new power board
2. E1300535: DCN for SEI Coil Driver regulator transient protection
3. E1100821: Change notice to bring ISI Coil Drivers to a rev. v2
4. Check front panel reset switch is correctly wired.
New units installed:
S1103340, S1103364, and S1103339 in SEI-C4
S1103358, S1202291, and S1103307 in SEI-C6.
New coil drivers require a ~15V signal on the BNC connector located on the back panel. Signal comes from the D1300642 HWWD chassis located in SUS-C6.
All HAM and BSC2 coil drivers will be checked/modified to ensure modifications listed above are complete with the exception of the back panel BNC modification.