Denon AVR-1906 Service Manual

21
AVR-1906 / AVR-786 / AVC-1620
LH28F800BJE (IC805)
SN74LV573APW (IC818,819)
SN74LVC139APWR (IC820)
TC9273N (IC703) SN74LV14APW (IC829) MM74HCT00MT (IC814-815)
1
2
3
4
5
6
7
8
10
9
20
19
18
17
16
15
14
13
12
11
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
Vcc
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
LE
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D0
D1 D2
D3 D4 D5 D6
D7
L
E
OE
1
234
567
89
11
12131415
16
17
1819
Q0 Q1
Q2
Q3
Q4 Q5 Q6 Q7
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
FUNCTION TABLE
(each decoder/demultiplexer)
INPUTS
OUTPUTS
G
SELECT
OUTPUTS
G
B A Y3 Y2 Y1 Y0
L L L H H H L
L L HHHLH
L H LHLHH
L H HLHHH
H X X H H H H
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1Y
2A
2Y
3A
3Y
GND
V
CC
6A
6Y
5A
5Y
4A
4Y
VCC
B4
A4
Y4
B3
A3 Y3
A1
B1 Y1
A2
B2
Y2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14

Denon AVR-1906 Specifications

Power Amplifier Section

front power output (8 ohms)	85 W + 85 W
front power output (6 ohms)	120 W + 120 W
center power output (8 ohms)	85 W
center power output (6 ohms)	120 W
surround power output (8 ohms)	85 W + 85 W
surround power output (6 ohms)	120 W + 120 W
surround back power output (8 ohms)	85 W + 85 W
surround back power output (6 ohms)	120 W + 120 W

Preamplifier Section

input sensitivity/impedance	200 mV/47 kohms
output level/load impedance	SUBWOOFER 1.2 V/10 kohms
frequency response	10 Hz - 100 kHz (+1, -3 dB)
signal-to-noise ratio	98 dB (IHF-A weighted)
tone control treble	±12 dB at 10 kHz
tone control bass	±12 dB at 100 Hz

FM Section

tuning frequency range (FM)	87.5 - 107.9 MHz
usable sensitivity (FM)	1.0 µV (11.2 dBf)

AM Section

tuning frequency range (AM)	520 - 1710 kHz
usable sensitivity (AM)	18 µV

General

power supply	AC 120 V, 60 Hz
power consumption	5.1 A
dimensions	434 (W) x 147 (H) x 417 (D) mm
weight	11.7 kg