Denon AVR-X3100W Service Manual

4.2. Power AMP (AMP PCB)
No audio output.
Protection is activated.
Is the power transistor open or short circuit-
ed?
2SB1647/2SD2560
s
Is the emitter resistor of the power transistor
open?
0.47Ω
Is the base resistor of the power transistor
open?
22Ω
Is the trimmer potentiometer between the
base of the power transistor open?
1kΩ
Are any other transistors faulty?
Are any other resistors faulty?
Turn on the power and check that the voltage of each part is correct and that there is an idling cur-
rent.
Replace the power transistor.
Replace the transistor.
Replace the resistor.
Replace the emitter resistor.
Replace the base resistor.
Replace the trimmer potentiometers.
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
98

Denon AVR-X3100W Specifications

General

Receiver type	Surround
Speaker selector	A+B
Audio output channels	7.1 channels
Total Harmonic Distortion (THD)	0.08 %
Power output per channel (1KHz@6 Ohm)	180 W
Power output per channel (20-20KHz@8 Ohm)	105 W
HDMI in	8
Remote control in	1
Composite video in	3
Multichannel audio input type	Terminals
Component video (YPbPr/YCbCr) in	2
12V trigger	Yes
Speakers connectivity type	-
Audio formats supported	AAC, AIFF, FLAC, MP3, WAV, WMA
Supported radio bands	FM
Product color	Black
Audio decoders	Dolby Digital EX, Dolby Pro Logic IIx, Dolby Pro Logic IIz, Dolby TrueHD, DTS 96/24, DTS Neo:X, DTS-ES, DTS-HD Master Audio
Volume control	Rotary
Apple docking compatibility	Not supported
Power consumption (standby)	0.1 W
Power consumption (typical)	600 W

Weight and Dimensions

Depth	388 mm
Width	434 mm
Height	167 mm
Weight	10700 g