Denon PMA-2500NE - ADJUSTMENT; Idling Current Adjustment

ADJUSTMENT
Adjusting Idling Current
1. Preparation
(1) PrepareaDCvoltmeter.
(2) Placetheunitundernormalusageconditions,awayfromhighlyventilatedareassuchasnexttoanairconditioning
machineorelectricfan.
 Thesetrequiresanambienttemperatureof15℃to30℃andstandardhumidity.
(3) SettingsofThisUnit
 •PowerbuttonOFF
 •SPEAKER(Speakerterminal)Noload
 (Donotconnectequipmentsuchasspeakersordummyresistors.)
2. Adjustment Procedure
(1) Removethetopcoverandturn"
V5001
"and"
V6001
"oftheAMPPCBcounterclockwise(
c
)asfaraspossible.
(2) ConnecttheDCVoltmetertothetestpoints.
 Lch:N5201(8U-110204-1)
 Rch:N6201(8U-110204-2)
(3) Setthisunitasfollows.
 MASTERVOLUME:   (
c
min.)turncounterclockwisetothelowestposition.
 SPEAKER(Speakerterminal):  Noload
 (Donotconnectequipmentsuchasspeakersordummyresistors.)
(4) Connectthepowercordtoanoutlet.Next,pressthepowerbuttontoturnonthepower.
(5) Oncethepowerison,rotate"
V5001
"and"
V6001
"clockwise(
x
)andadjustthetestpointvoltageto"
10mV ± 1mV
DC
".
(6) Aftertwominutes,rotate"
V5001
"and"
V6001
"andadjustthevoltageto"
20mV ± 1mV DC
".
NOTE:
Idlingcurrentdecreaseswiththetemperatureriseinsidetheunit,andinabout30minutesafterturningonthepower,
thecurrentwillbe"
14mV
".
DC Voltmeter
Main Volume
N6201
Power Amp PCB (R)
V6001
N5201
Power Amp PCB (L)
V5001
Power
Trans
Power
Trans
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