SANTA ANA, CA -- TTM Technologies has been notified by a customer of a warranty claim for defective products with a potential liability of approximately $650,000.

The claim cut $650,000 from the PCB maker's fourth quarter and full year 2012 net sales. The updated net sales are $381.7 million for the quarter ended Dec. 31 and $1.349 billion for the year ended Dec. 31.

The printed circuit board company reported the claim in an amendment filed with the Securities and Exchange Commission.

TTM did not disclose the company that filed the claim.