D80 — Levels and GR/OVL check record
Complete during a real test. Fields are intentionally blank.
Date / event / responsible technician:
Model / unit number / firmware:
Reference: D80 Manual 1.14 en, 09/2019, §9 pp.26–27; §11.5.3 p.51.
Amplifier / channel or pair / loudspeaker / quantity / loudspeaker cable path:
Speaker setup / Output mode / Input routing:
Source / console or processor output / test signal and passage:
Saved configuration / restore file identifier:

BEFORE THE CHANGE
Point in the passage / duration of indication:
Input ISP/OVL (location and color):
Channel ISP/OSP/GR/OVL (color):
Levels — Input / Output / Gainred/Headr:
Levels — impedance / temperature / Mains/SMPS where applicable:
Channel mute / exact message in Channel view:
Audible symptom / listening area / agreed level:

SINGLE CHANGE AND CHECK
Setting changed / previous value / test value / reason:
Same passage / level and comparison conditions:
Indicators and readings after the change:
Audible symptom after the change:
Which cause can be ruled out, and which remains unresolved:
Was the previous state restored? / file or values used:
Pair status: MUTE / enabled by the responsible technician / pending:
Next step:

Do not disable protection or the loudspeaker setup to clear an indication.
Switch off the amplifiers before changing loudspeaker connections.
Absence of OVL does not prove that every driver is healthy.