TANDY  1000 RL/HD  (25-1450/51)        Settings         Faxback Doc. # 1302

Note: Refer to Faxback Doc. # 1375 for locations on Main Logic Board and 
Satellite Board.

Video Sync Interrupt Jumper:  E12-E13   Jumped for IRQ 5 set for Video Sync

                                        Removed for IRQ 5 on bus (default)

Microphone/Line Audio Jumper:

This jumper is to determine what is plugged into the microphone connector on
the back of the CPU. The jumper will fit over two of the three pins, the two 
pins will correspond to the silk-screened words, Microphone Input and Line 
Audio Input, on the satellite board.

The two choices are as follows:

Microphone Input:  For a microphone only.
Line Audio Input:  For things such as stereos, guitars, keyboards, and other 
                   audio equipment that has line-level output into the 
                   connector.