Adjust the SS/ADI4 audio (gantry/console speaker and microphone VRs)
Set the sound volume and tone of the SS/ADI4 PWB's audio function — the intercom between gantry and console, plus the automatic audio message playback — using seven variable resistors (VRs) on the board: VR1, VR2, VR3, VR5, VR6, VR8, VR9. Source shows the VR locations on the board, the audio system's block diagram, and a table of what each VR adjusts and which turn direction increases or decreases
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| VR1 (gantry speaker volume) | n/a in source | 1 |
| VR2 (console speaker volume) | n/a in source | 1 |
| VR3 (automatic voice message playback gain) | n/a in source | 1 |
| VR5 (gantry microphone tone controller — midrange) | n/a in source | 1 |
| VR6 (gantry microphone tone controller — treble) | n/a in source | 1 |
| VR8 (console microphone tone controller — midrange) | n/a in source | 1 |
| VR9 (console microphone tone controller — treble) | n/a in source | 1 |
Full step-by-step for Adjust the SS/ADI4 audio (gantry/console speaker and microphone VRs)
All 4 steps are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with the real figures from the source.
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Related Console guides
Related error codes
Source: 2D201-113EN*J §4.6.6(3) 'Audio section' (pp.449-451). Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.