Denon AVR-X4500H Service Manual

ADJUSTMENT
Adjusting Idling Current
NOTE：Adjusting the idling current when "ECO Mode" is set may damage the Power AMP.
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) Make sure that "ECO Mode" is off.
• Press the "
SETUP
" button on the remote control to display the GUI menu.
• Press the cursor button to select "General" → "ECO" → "Mode" → "Off".
(2) Remove the top cover and turn VR714 (ALL Channel) of the AMP PCB counterclockwise(
c
) as far as
possible.
(3) Connect the DC Voltmeter to the test points.
FRONT-Lch : CN715 : VR714
FRONT-Rch : CN725 : VR724
CENTER ch : CN735 : VR734
SURROUND-Lch : CN745 : VR744
SURROUND-Rch : CN755 : VR754
ASSIGN-2Rch : CN765 : VR764
ASSIGN-1Rch : CN775 : VR774
ASSIGN-2Lch : CN785 : VR784
ASSIGN-1Lch : CN795 : VR794
(4) Connect the power cord to an outlet. Next, press the power button to turn on the power.
(5) 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 : DVD
(6) Turn VR741 clockwise (
x
) and adjust the voltage of the test point to "
8.0mV ± 0.5mV DC
" within 2
minutes.
(7) Check whether the voltage is within the range "
8.0mV ± 2mV DC
" 10 minutes after adjustment.
(8) Adjust the variable resistance of each channel using the same method.
ASSIGN2 L
VR784
CN785
ASSIGN1 L
ASSIGN2 R
ASSIGN1 R
VR794
VR774
VR764
CN795
CN775
CN765
SR-CH
VR754
CN755
FR-CH
VR724
CN725
C-CH
VR734
CN735
FL-CH
VR714
CN715
SL-CH
VR744
CN745
SL ch
DC Voltmeter
FL chC chFR chSR ch
ASSIGN1 RchASSIGN2 RchASSIGN1 LchASSIGN2 Lch
5CH AMP PCB
4CH AMP PCB
AMP UNIT
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
201

Denon AVR-X4500H Specifications

General

Display	-
Quantity	1
HDCP version	2.2
Apple docking	No
Product color	Silver
Audio decoders	DTS:X, Dolby Atmos, Dolby Surround, Dolby TrueHD
Volume control	Rotary
Audio amplifier	Yes
Multi-Zone quantity	3
Connector contacts plating	Gold
Receiver type	Surround
Frequency range	10 - 100000 Hz
Audio output channels	9.2 channels
Signal-to-Noise Ratio (SNR)	100 dB
Power output per channel (20-20KHz@8 Ohm)	125 W
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
Internet radio services supported	Amazon Music, Deezer, Napster, Pandora, SIRIUS Internet Radio, Spotify, Tidal, TuneIn, iHeartRadio
HDMI in	8
Audio (L/R) in	5
Composite video in	4
Component video (YPbPr/YCbCr) in	2
Connectivity technology	Wired
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.1 W
Power consumption (typical)	710 W

Weight and Dimensions

Depth	389 mm
Width	434 mm
Height	167 mm
Weight	13500 g