Editing Ultimate 64 Motherboard (section)

== SID-TAP header ==

An 8-pin header brings the installed SIDs' analogue signals out '''before''' the U64's own processing, for people who do not want the board in the audio path. A 3.5 mm jack can be wired straight to the SID OUT pins as a line out.<ref name="doc" />

{| class="wikitable styled-table" style="width:55%; text-align:center;"
|+'''SID-TAP header (top view; the arrow on the board points at pin 2)'''
! Function !! Pin !! Pin !! Function
|-
| SID 2 OUT || 1 || 2 || Ground
|-
| Ground || 3 || 4 || SID 2 IN
|-
| Ground || 5 || 6 || SID 1 IN
|-
| SID 1 OUT || 7 || 8 || Ground
|}

The SID inputs give a line-in to the SIDs, but Gideon notes that this has '''not been functionally verified'''.<ref name="doc" />