| Date |
User |
Note |
| 2018-03-15 00:00:00 |
|
SCA3 (SCA_D) showed no test pulse. Found and removed a short circuit between pin 56 and 57 of SCA D |
| 2018-03-19 00:00:00 |
|
Regulators and references good.
4V @ 1.5A, 2.5V @ 0.068A |
| 2018-05-14 00:00:00 |
|
doesn't boot reliably - like pwb06 |
| 2018-06-01 00:00:00 |
|
Remains at TRIUMF, do not use on full TPC |
| 2018-06-05 00:00:00 |
|
in addition to the boot problem, the SCA D is bad |
| 2018-06-06 00:00:00 |
|
flaky vcxo |
| 2018-06-07 00:00:00 |
|
vcxo replaced, still no boot |
| 2019-09-18 00:00:00 |
|
no eth link. K.O. |
| 2019-09-18 00:00:00 |
|
bad fiber sfp, replaced, eth link ok. K.O. |
| 2019-09-18 00:00:00 |
|
boot ok, ping ok, esper ok, fectrl ok. K.O. |
| 2019-09-23 00:00:00 |
|
takes very logn time to boot. K.O. |
| 2019-09-23 00:00:00 |
|
all sca ok, col 1, col 2 pulse is too big. sca 1 ri4 is has small noise. all pads ok. K.O. |
| 2019-10-02 00:00:00 |
|
consistently does not boot. K.O. |
| 2019-10-09 00:00:00 |
|
vcxo replaced (Luke), boot ok, no lock to ext clock. K.O. |
| 2019-10-09 00:00:00 |
|
all pads ok, except small digital noise sca1 chan1, high base line rms sca2 chan1. K.O. |
| 2019-10-09 00:00:00 |
|
gain anomaly in col3 - sca2 chan19-54, sca3 chan19-54. K.O. |
| 2019-10-10 00:00:00 |
|
gain anomaly probably on short TPC. no gain anomaly on this PWB. K.O.
|
| 2019-10-10 00:00:00 |
|
all channels look ok. K.O. |
| 2019-10-18 00:00:00 |
|
vcxo resoldered (Luke). but not replaced. same new vcxo (black colour). K.O. |
| 2019-10-18 00:00:00 |
|
ext clock locks good if esper clockcleaner/pll1_wnd_size is changed from 18.6 ns to 40 ns. K.O. |
| 2019-10-18 00:00:00 |
|
all channels still ok. K.O. |