Board Layout - Graphic 34.7 K
JP31 : PIN ASSIGNMENT
(1)Power-On LED: Pin I "+" is live, Pins2 &3 are grounds.
Power-On LED to indicate various power management modes. When system entry power management modes, the LED will be flashed.
(2) KeyLock Pins3 & 4 or Pins4 & 5 for a Case-mounted Keyboard lock.
(3) Speaker Pins7 & 10 for the lead from a speaker mounted inside the system case.
(4) Turbo LED Pin 11 "+" is live & 12 is for the lead from a Case-mounted Turbo Switch status indicator LED.
(5) Turbo Switch Pins 16 & 17 must be shorted for maximum speed operation (default), or connector for the lead from a Case-mounted Turbo Switch.
(6) Reset Switch Pins 19 & 20 for the lead from a reset switch mounted on the system case.
JP3(External Battery Connector) Pin l "+" for the lead from an external Battery Red wire.
Pin4 "-" for the lead from a External Battery Black wire.
JP7 : Rechargeable Battery Selection.
Pins l & 2 must be shorted to enable the use of a rechargeable battery. (Default)
Pins2 & 3 must be shorted to clear CMOS(M5818) Setup.
If the system board U9 installed has a OEC12C887ABTI position, the user does not have to install a 3.6V Rechargeable Battery, as the OEC 12C887A has a onboard battery.
Note: If the system board has a "BT1 position" don't put a 3.6V Rechargeable Battery in. It must use a 6V external battery connected to the JP3 connector.
Page updated 98/07/14
