Difference between revisions of "Upd 2x0 217 power board"
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*[[Upd_pcb | PCB]] [[Aiw_hardware | Hardware]] [[AIW_assembly | Assembly]] [[PFMENU DOCS | PFCmdMenu]] [[iochan]] [[Upd_merge_history | Merge]] | *[[Upd_pcb | PCB]] [[Aiw_hardware | Hardware]] [[AIW_assembly | Assembly]] [[PFMENU DOCS | PFCmdMenu]] [[iochan]] [[Upd_merge_history | Merge]] | ||
| − | *[[Upd_2x0_218_controller | SC/MC 218]] [[Upd_2x0_217_power_board| FET 217]] | + | *PCA : [[Upd_2x0_218_controller | SC/MC 218]] [[Upd_2x0_217_power_board| FET 217]] [[Wip4a-spi | Swiffy]] |
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=FET 2x0-217 PCA= | =FET 2x0-217 PCA= | ||
Revision as of 23:43, 29 March 2009
Contents
FET 2x0-217 PCA
200-217-001
- 3-28-09 : removed from AK-WB2 w/exploded power FET
todo
- remove damaged power fet
- test other power fets (safety fets are on and will complicate this.)
- if all other tests are positive, apply 10 volts with a 100mA current limit
- if successful, attach to state controller with "testjig" software build and apply 20V limited to 200mA
- if successful replace missing FET and repeat above power tests.
200-217-005
- 3-1-09 : Vclamp circuit failed (permanently on) when MPJA power supplied failed.
todo
- replace PFET and power resistor
200-217-009
- 3-28-09 : measured battery voltage at zero and 1.8 volts
- 3-28-09 : measured terminal to terminal resistance of safety FETs, 38 and 72 ohms
- 3-1-09 : safety fets are not engaged.
todo
- replace coin cells (use adhesive to secure batteries to PCA)
