Denon AVR-X540BT 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℃ and standard humidity.
(3) Settings of This Unit
• 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
( (ALL Channel) of the MAIN PCB counterclockwise(
c
) as far
as possible.
(2) Connect the DC Voltmeter to the test points.
FRONT-Lch : CN510 : VR510
FRONT-Rch : CN550 : VR550
CENTER ch : CN530 : VR530
SURROUND-Lch : CN520 : VR520
SURROUND-Rch : CN540 : VR540
(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 "
2.0mV ± 0.5mV DC
" within 2
minutes.
(6) Check whether the voltage is within the range "
2.0mV +2mV/-1mV DC
" 10 minutes after adjust-
ment.
(7) Adjust the variable resistance of each channel using the same method.
CN540VR540VR510 CN510 VR520 CN520 VR530 CN530 VR550 CN550
F Lch
S Lch
C ch
S Rch
F Rch
DC Voltmeter
MAIN PCB
73
Caution in
servicing
Electrical Mechanical Repair Information Updating

Denon AVR-X540BT Specifications

General

Channels	5.2
HDMI Inputs	5
HDMI Outputs	1
Bluetooth	Yes
4K Ultra HD Pass-through	Yes
Dolby TrueHD	Yes
DTS-HD Master Audio	Yes
Auto Speaker Calibration	No
Number of Power Amps	5
Output Power (6 ohm, 1 kHz, 0.7% 2ch Drive)	90 W
Output Power (6 ohm, 1 kHz, 10% 1ch Drive)	140 W
Composite In	2
Composite Out	1
Digital In: Optical	2
Analog In	2
Speaker Terminal: Screw	Yes
FM Tuner with RDS	Yes
3D Signal Pass-Through	Yes
Audio Return Channel	Yes
HDMI Standby Pass-Through	Yes
CEC	Yes
Auto Speaker Setup by Microphone	No
Dimensions (W x H x D)	434 x 151 x 319 mm
Weight	7.5 kg
Total Harmonic Distortion	0.08 %
Input Sensitivity/Impedance	200 mV / 47 kΩ
Signal-to-Noise Ratio	98 dB
Ethernet Port	No
Wi-Fi	No
Power Output per Channel	70W (8 ohms, 20Hz - 20kHz, 0.08% THD)
Frequency Response	10Hz - 100kHz
Supported Audio Formats	MP3, WMA, AAC