undervolts) LED is also on in the standby state. GreenLEDnormalvoltageindicators RedLEDerrorindication DS7 DS4 DS3 DS8 DS5 DS2 DS6 DS13 DS9 DS10 DS11 DS12 +22 +16.5 +15 +14.4 +5 -14.4 -15 -22 OT OV UV OI Figure 6–2: Power supply status indicators for the CRT display power supply GreenLEDnormalvoltageindicators RedLEDerrorindication DS4 DS3 DS8 DS5 DS2 DS6 DS9 DS10 DS11 DS12 +16.5 +15 +14.4 +5 -14.4 -15 OT OV UV OI Figure 6–3: Power supply status indicators for the flat panel display power supply AM700 Audio Measurement Set Service