10Keys A and B and briefly pressing the rotary encoder knob do not workwhen the unit is in a mode other than ZONES mode, given thatadjustments in these other modes will be shared by both outputso VOL + and - keys in the ZONE section: the MASTER volume of thepreviously-selected zone increases/decreases by pressing the keys.This works the same as turning the unit's front rotary encoder knob indefault operation mode. Pressing and holding these keys increases ordecreases the volume continuously.o MUTE key: activates/deactivates the full silence of the previously-selected zoneo LINE keys 1 to 4: enable selecting/deselecting a LINE source as activefor the previously-selected zone (the same as the LINE1 to LINE4 keyson the front panel)o VOL + and - keys in the LINE section: the volume of the previously-selected source for the likewise previously-selected zoneincreases/decreases with each press of the key. A single source hasindependent volume adjustments for sending to zones A and B whenoperating in ZONES mode (example: the LINE1 source can be sent withvolume of 50 to zone A and at a volume of 62 to zone B, etc.). If noLINE is selected, these controls are not operative, and the LCD screendisplays the message "LINE NOT SELECTED"o MIC1/MIC2 keys: enable selecting/deselecting a MIC source as activefor the previously-selected zone (the same as the MIC1 and MIC2 keyson the front panel)o VOL + and - keys in the MIC1 or MIC2 section: the volume of the MICsource in question for the previously-selected zone increases/decreaseswith each press of the key. A single microphone source hasindependent volume adjustments for sending to zones A and B whenoperating in ZONES mode (example: MIC1 can be sent at a volume of35 to zone A and at a volume of 57 to zone B, etc.)o PRESET keys: enable recovering one of the CA200z 5 presets orconfiguration memories. These keys must be held down for a fewseconds to recover the preset in question, while the active preset isdisplayed on the LCD screen as P1, P2, P3, P4 or P5o ON/STBY key: Enables changing from STANDBY mode to ON modeand vice versa. To change from ON to STANDBY, this key must bepressed and held for a few momentsNote: The first time a key that actuates in timed mode is pressed (PRESET 1-5 and ON/STBY), itwakes up the LCD panel if it is off, in attenuated inactivity in the DIMMED or OFF modes, or if theCA200z is in AUTO STAND BY mode. If the key is held down (long pulsation) or released andpressed again, the CA200z will execute the associated function.