70ADJUSTMENTAudio SectionAdjusting Idling CurrentRequired measurement equipment: DC Voltmeter1. Preparation(1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room temperature15 °C ~ 30 °C (59 °F ~ 86 °F).(2) Presetting• POWER (Power source switch) STANDBY• SPEAKER (Speaker terminal) No load(Do not connect speaker, dummy resistor, etc.)2. Adjustment(1) Remove top cover and set VR714,VR724,VR734,VR744,VR754,VR764,VR774 on 7CH AMP UNIT at fullycounterclockwise (c) position.(2) Connect DC Voltmeter to test points (FRONT-Lch: CN715, FRONT-Rch: CN725, CENTER ch: CN735, SURROUND-Lch: CN745, SURROUND-Rch: CN755, SURROUND-BACK Lch: CN765, SURROUND-BACK Rch: CN775.(3) Connect power cord to AC Line, and turn power switch "ON".(4) Presetting.MASTER VOLUME : "---" counterclockwise (c min.)SPEAKER (Speaker terminal) : No load(Do not connect speaker, dummy resistor, etc.)MODE : MCH STEREOFUNCTION : DVD(5) Within 2 minutes after the power on, turn VR714 clockwise (x) to adjust the TEST POINT voltage to6.5mV ± 0.5mV DC.(6) After 10 minutes from the preset above, turn VR714 to set the voltage to 8mV ± 0.5mV DC.(7) Adjust the Variable Resistors of other channels in the same way.DC VoltmeterF LchS Lch F RchC chS Rch S Back Lch S Back RchCN715VR744CN745VR734 VR754CN755VR724CN725VR774CN765VR714 VR764CN735CN775AMP UNIT
