Notification Date: March 9, 2012
Effective Date: Immediately
Product Name: Chestnut43 Expansion board
Product Number: BRD30005-R3078. Sold as PKG30005 online.
Product Revision Number: R3078 only
The resistor R1 was not populated on a small number of builds of the Chestnut43 board version BRD30005-R3078 only.
R1 should be populated with a 0R (0402) zero-Ohm feedback resistor.
Customers with Chestnut43 boards need to make these two checks to see if this issue applies to their boards:
Step 1) Read the white label on each Chestnut43 board, looking for BRD30005-R3078.
Step 2) On each Chestnut43 BRD30005-R3078 board, check to see if resistor R1 is NOT populated.
For each BRD30005-R3078 board that does not have resistor R1 populated, a customer has two choices for resolution:
1) At the customer location, populate resistor R1 with a 0R (0402) zero-Ohm feedback resistor, or add a solder bridge.
The image below shows the location of resistor R1 on the Chestnut43 board: