ashwin15990 / clockthree

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HW: ClockTWO Alpha Board (Power Input Socket J1) #2

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago
PROBLEM :
1. The Power Input Socket J1 has the terminals inverted from standard practice
2. The center pin is negative and the outer shell is positive
3. This is reverse of what a standard Wall Wart plug config.

SOLUTION :
1. Isolate the GND Pad of J1 by making four cuts.
2. Isolate the V_IN Pad of J1 by making one cut near the pad
3. Scrape some of the solder mask on the GND plane near the V_IN pad of J1.
4. Using an old component lead, create a solder bridge between GND plane and 
V-IN pad of J1.
5. Scrape out some of the solder mask from the V-IN track which goes to diode 
D195 (1N4007)
6. Using a piece of insulated link wire, make a connection between GND pad on 
J1 and V_IN track going to diode D195

Original issue reported on code.google.com by anoo...@gmail.com on 25 Nov 2010 at 8:59

GoogleCodeExporter commented 8 years ago
[deleted comment]
GoogleCodeExporter commented 8 years ago
Include this revision in C3 board.

Original comment by anoo...@gmail.com on 2 Dec 2010 at 4:35

GoogleCodeExporter commented 8 years ago
[deleted comment]
GoogleCodeExporter commented 8 years ago
Fixed on C3

Original comment by wyojus...@gmail.com on 24 Dec 2010 at 11:19