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boards:ecb:4pio:errata [2018/09/16 03:16]
b1ackmai1er
boards:ecb:4pio:errata [2018/09/16 07:05] (current)
b1ackmai1er
Line 1: Line 1:
 ====== R03 Errata ====== ====== R03 Errata ======
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-PIO 0 
- 
-PIO 1 
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-PIO 2 
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-PIO 3 
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-Initial state: 
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-  * Pin 26 (+5v) is connected to the ground plane. 
-  * Pin 11 (gnd) is connected to +5v via C24 
- 
-End state: 
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-  * Pin 26 (+5v) disconnected from ground plane and connected to +5v by wire link. 
-  * Pin 11 (gnd) connection is changed from a VCC plane to a GND plane. 
- 
-Steps: 
- 
-  - Cut the thermal relief links between pin 6 of IC12 (pio3) and the ground plane. 
-  - Link pin 6 of IC12 (pio 3) to pin 2 of C12. 
-  - Cut the link between pin 11 of IC12 (pio 3) and + pin of C24. 
-  - Link pin 11 of IC12 (pio 3) to the GND pin of C24. 
-  - Cut the link between pin 6 IC9 (pio 2) and pin 18 of P3. 
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-{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​boards/​ecb/​4pio/​errata/​ecb-4pio-errata-pio3.png?​nolink&​598x877}} 
  
  
boards/ecb/4pio/errata.txt · Last modified: 2018/09/16 07:05 by b1ackmai1er
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