EPSON AMERICA, INC. Product Support Bulletin Subject: Equity LT-286e Numeric Co-processor Information Change Date: 9/11/89 PSB No.: S-0099 Page: 1 of 1 Originator: MWT The final specifications for the Equity LT-286e have changed in one particular. Initial documentation indicated that the Intel 80C287-A-12 CMOS-type numeric co-processor (NPX) should be used. Due to Intel design considerations, this turns out to be in error. The 80C287-A-12 requires additional power and ground pin connections as opposed to the NMOS version. This requires special connections to the socket that were not part of the LT-286e design. Intel clearly warns that installing the 80C287-A-12 in a computer not meeting these new specifications can cause damage to the NPX chip and/or the computer. DO NOT ATTEMPT TO INSTALL THE 80C287-A-12 IN THE EQUITY LT-286e! The final specification for the NPX to be used in the LT-286e is the 80287-8, NMOS-type. The Service Support Plan and Service Manual are being revised to reflect this change.