Eric Tang guaranteed certain Vector Graphic debt.

Under an agreement in principle that is subject to several conditions, Tang, representing a group of companies, would guarantee repayment of $1.7 million of secured debt on which the troubled Thousand Oaks microcomputer maker is in default. In return, the group would assume a major stock and voting position. Tang’s group owns Hong Kong- and U.S.-based companies engaged in consumer electronics, textiles and real estate and has business interests in China.