Denon AVR-3805 Service Manual

Also see for AVC-3890: Control protocol Service manual

Contents

Denon AVR-3805 Service Manual Manual pdf 5 page image

55AVR-3805 / AVC-3890ADJUSTMENTAudio SectionIdling Current (1U-3469-1)Required measurement equipment: DC VoltmeterPreparation(1) Avoid direct blow from an air conditioner or an electricfan, and adjust the unit at normal room tempereture 15°C ~ 30 °C (59 °F ~ 86 °F).(2) PresettingPOWER (Power sourse switch) OFFSPEAKER (Speaker terminal) No load(Do not connect speaker, dummy resistor, etc.)Adjustment(1) Remove top cover and set VR101, VR102, VR201,VR301, VR302, VR401, VR402, on 1U-3469-1 (PowerUnit) at fully counterclockwise ( ).(2) Connect DC Voltmeter to test points (FRONT-Lch:TP301 1 2 pin, FRONT-Rch: TP101 5 6 pin,CENTER ch: TP301 3 4 pin, SURROUND-Lch: TP1013 4 pin, SURROUND-Rch: TP101 1 2 pin,SURROUND BACK-Lch: TP301 7 8 pin, SURROUNDBACK-Rch: TP301 5 6 pin).(3) Connect power cord to AC Line, and turn power switch"ON".(4) Presetting.MASTER VOLUME : "---" counterclockwise ( min.)MODE : 7CH STEREOFUNCTION : CD(5) Allow 2 minutes, and turn VR101 clockwise ( ) toadjust the TEST POINT voltage to 6.5 mV ±0.5 mV DC.(6) After 10 minutes from preset, turn VR101 to set thevoltage to 8 mV ±0.5 mV DC.(7) Adjust the Variable Resistors of other channels in thesame way.(8) After 5 minutes from (6), turn VR101 to set the voltage to8 mV ±0.5 mV DC.(9) Adjust the Variable Resistors of other channels in thesame way.(1U-3469-1): DC Voltmeter(1)15 30(2)OFF( )(1) 1U-3469-1VR101, VR102, VR201, VR301, VR302, VR401, VR402( )(2) (FRONT-Lch: TP301 1 2 pin, FRONT-Rch: TP101 5 6 pin, CENTER ch: TP301 3 4 pin,SURROUND-Lch: TP101 3 4 pin, SURROUND-Rch:TP101 1 2 pin, SURROUND BACK-Lch: TP301 7 8pin, SURROUND BACK-Rch: TP301 5 6 pin) DCVoltmeter(3) AC100V 95 105V"ON"(4) ONMASTER VOLUME( )SPEAKERMODE : 7CH STEREOFUNCTION : CD(5) 2 VR101 ( )6.5mV ±0.5mV DC(6) 10 VR1018mV ±0.5mV DC(7)(8) (6) 5 VR1018mV ±0.5mV DC(9)