37. PREV/NEXT Button (INSTALL SYSTEM SETTING,PREV/NEXT)These buttons select the system setting items.38. Select Button (SEL)This button selects set value of the system settingitems.39. Auxiliary Input On/Off Indicator (Green) (AUX IN)This indicator is toggled ON when the auxiliary inputsound is provided through the auxiliary speaker.40. Talk On/Off Indicator (Green) (TALK)This indicator is toggled ON when the communicationbetween store personnel and a customer is providedthrough the auxiliary speaker.41. Page On/Off Indicator (Green) (PAGE)This indicator is toggled ON when the communicationamong store personnel is provided through the auxiliaryspeaker.42. Beep On/Off Indicator (Green) (BEEP)This indicator is toggled ON when a beep is providedthrough the auxiliary speaker.43. Echo Canceller Effect Level Control Indicator(ECHO CANCELLER)The removal rate of the echo canceller, intended toeliminate the echo returned from the menu board, is setup.OFF: OffLOW: GreenMID: YellowHIGH: Red44. DNR Effect Level Control Indicator (DNR LEVEL)The more the noise is reduced, the lower the soundquality will be. The table on page 27 shows therelationship between noise reduction level and soundquality.OFF: OffLOW: GreenMID: YellowHIGH: Red[INSTALLED SYSTEM SETTING]Only qualified service personnel or system installersshould use the following buttons.49.ID Registration Indicator (Red) (ID REGISTRATION)This indicates that the ID registration is on.50.ID Registration ButtonPressing this button for two second or more will turn theID registration mode On. When you push this buttonagain, it returns to a normal mode.45. Dual lane On/Off Indicator (Green) (DUAL LANE)When the TANDEM operation at the double rive-thru, setto ON.46. Lane select Indicator (Red/Green) (LANE SELECT)Select the lane A or B at the double drive-thru.Red: Selected Lane AGreen: Selected Lane B47. POS Remote Control Indicator (Green)(POSREMOTE)This item selects the POS remote control On and Off.OFF: POS Remote OFFON: POS Remote ON48. TX Power Indicator (Green) (TX POWER)This item selects the transmit power Normal andAttenuation.OFF: Reduce Power (25 %)ON: Normal Power[ID REGISTRATION]