Denon AVR-X520BT Service Manual

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℃(59°F~86°F)andstandardhumidity.
(2) Presetting
 •POWER(Powersourceswitch) STANDBY
 •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VR510(FL),VR550(FR),VR530(C),VR520(SL)andVR540(SR)oftheMAINPCB
counterclockwise(c)asfaraspossible.
(2) ConnectDCVoltmetertothetestpoints.
 FRONT-Lch   :CN510
 FRONT-Rch   :CN550
 CENTERch   :CN530
 SURROUND-Lch  :CN520
 SURROUND-Rch  :CN540
(3) Connectthepowercordtoanoutlet.Next,pressthepowerbuttontoturnonthepower.
(4) 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.)
 MODE   :MCHSTEREO
 FUNCTION   :CBL/SAT
(5) TurnVR510clockwise(
x
)andadjustthevoltageofthetestpointto"1.5mV ± 0.5mVDC."within2minutes.
(6) 10minutesafterthepreliminaryadjustment,turnVR510andsetthevoltageto"2.0mV ± 0.5mV DC".
(7) Adjustthevariableresistanceofeachchannelusingthesamemethod.(VR520-VR550).
CN540VR540VR510 CN510 VR520 CN520 VR530 CN530 VR550 CN550
F Lch
S Lch
C ch
S Rch
F Rch
DC Voltmeter
MAIN PCB
32

Denon AVR-X520BT Specifications

General

Receiver type	Surround
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Pre-out connectivity	Yes
Audio output channels	5.1 channels
Signal-to-Noise Ratio (SNR)	98 dB
Power output per channel (1KHz@6 Ohm)	90 W
Power output per channel (20-20KHz@8 Ohm)	70 W
HDMI in	5
Composite video in	2
USB ports quantity	1
Digital audio coaxial in	-
Connectivity technology	Wired
Speakers connectivity type	Clamp terminals
Ethernet LAN	No
AM band range	552 - 1611 kHz
FM band range	87.5 - 107.9 MHz
Supported radio bands	AM, FM
Product color	Black
Audio decoders	Dolby TrueHD, DTS 96/24, DTS-HD, DTS-HD Master Audio
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.3 W
Power consumption (typical)	330 W

Weight and Dimensions

Depth	319 mm
Width	434 mm
Height	151 mm
Weight	7500 g