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Prototype reworks
Paweł K edited this page Mar 4, 2020
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19 revisions
| Serial number | Modifications* | Notes |
|---|---|---|
| 1907180PW0006A0101 | - R363 changed to 10k - R377, R378 changed to 10k |
Si549: LVDS + LVDS variant |
| 1907180PW0006A0102 | - R377, R378, R379, R380, R363, R364 changed to 10k - Resoldered IC43, IC44 |
Si549: LVDS + LVDS variant |
| 1907180PW0006A0103 | - EEPROM changed to 2kbit - Heatsink milled to fit in NAT-R5 crate |
Si549: LVDS + LVDS variant |
| 1907180PW0006A0104 | Si549: LVDS + LVDS variant | |
| 1907180PW0006A0105 | Si549: LVDS + LVDS variant |
* Other than listed below
All boards have these additional modifications with respect to v1.0 schematics:
- Si549 RC variant changed to LVDS version:
- R278 changed to 0R
- Removed C561
- R349 changed to 0R
- Removed R351
- Added 100nF C557
- Changed R331 R332 to 0R
- Removed R110 R111
- C576 C577 changed to 0R
- Fixed SDRAM reference voltage - Grounded C346
- Fixed FLASH programming and readout - Removed R13