| Date |
User |
Note |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
U15 -12 to -5 voltage regulator is missing. -VLDO connected to -12V. K.O. |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
new NIM output circuit |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
VX port 1a bad vx clock, there is a solder bridge under clock fanout chip U12-2 clock output pins. According to Peter M. difficult to repair, U12 probably needs to come off. K.O. |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
VX ports tested ok using test_cdm and VX LVDS loopback. (except one bad vx clock as noted above). K.O. |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
installed SW5, removed R23 and R53. NIM/TTL switch works, both NIM and TTL clocks work. K.O. |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
wrong RJ45, use custom eth cable. K.O. |
| 2023-04-18 00:00:00 |
{"user_name":"olchansk"} |
NIM inputs do not work, threshold is -0.9V instead of -0.3V. K.O. |