Acer Aspire T690 Aspire T690/Power FH Service Guide - Page 70

Jumper Setting This section explains how to set jumpers for correct configuration of the main board. Setting Jumper Use the main board jumpers to set system configuration options. Jumpers with more than one pin are numbered. When setting the jumpers, ensure that the jumper caps are placed on the correct pins. Illustration SHORT OPEN Description The illustrations show a 2-pin jumper. When the jumper cap is placed on both pins, the jumper is SHORT. If you remove the jumper cap, or place the jumper cap on just one pin, the jumper is OPEN. This illustration shows a 3-pin jumper. Pins 1 and 2 are SHORT. Chapter 5 67