Denon AVR-2803 Service Manual

29
29
AVR-2803/983/AVC-2870
MM74HC4053SJ (CV: IC451)
1
2
V
EE
3
4
5
6
7
8
9
10
11
16
15
14
13
12
Y1
Y0
Z1
Z
Z0
Enable
GND
Vcc
Y
X1
X
X0
C
A
B
X = Don’t Care
Truth Table
Control Inputs
Select
Enable C B A
ONSwitches
L L L L Z0 Y0 X0
LLLHZ0Y0X1
L L H L Z0 Y1 X0
L L H H Z0 Y1 X1
LHLLZ1Y0X0
L H L H Z1 Y0 X1
LHHLZ1Y1X0
L H H H Z1 Y1 X1
H X X X None
TC9459F (AD: IC383) Except Japan model
L-LD2
8
L-ch7 to 91decoder
R-ch latch circuit
R-ch7 to 91decoder
9
16
19
3
2
4
5
6
7
10
11
12
24
22
23
21
20
18
17
15
14
13
1
NC
L-OUT
L-IN
L-LD1
L-A-GND
NC
NC
GND
CK
V
SS
V
DD
NC
R-OUT
R-LD1
R-LD2
R-A-GND
NC
CS2
NC
STB
DATA
R-IN
50kohm/
91STEP
VR
Same
as L-ch
L-ch latch circuit
Shift register (24Bit)
Level shift circuit
CS1
SN74HC151APW
(AD: IC513, 514)
SN74LV244APW (AD: IC522)
Data
Inputs
Outputs
GND
Strobe
3
2
1
0
Y
W
1
2
3
4
5
6
7
8
D2
D1
D0
Y
W
S
D5
D6
D7
A
D4
B
C
16
15
14
13
12
11
10
9
Vcc
5
6
7
A
B
C
4
Data
Inputs
Data
Select
74VHC74MTCX
(AD: IC515,803)
2Q
2Q
2PR
2CK
2D
2CLR
8
9
10
11
12
13
14 V
CC
CK
PR CLR
D
QQ
CK
CLR
PR
D
QQ
GND
1Q
1Q
1PR
1CK
1D
7
6
5
4
3
2
11CLR
1
2
3
4
5
6
7
8
10
9
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
Vcc
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
INPUT
OUTPUT
OE A Y
LH H
LL L
HX Z
FUNCTION TABLE
(each buffer)
TOP VIEW
PQ30RV11 (PO: IC201)
V
IN
VO
GND
VC
FRONT
VIEW
V
IN
VO
GND V
ADJ
FRONT
VIEW
PQ018EF01SZ
(AD: IC805)
74VHC573MTCX (DS: IC803, 804)
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

Denon AVR-2803 Specifications

General

Power Output	90 W per channel (8 ohms, 20 Hz - 20 kHz, 0.05% THD)
Channels	7.1
Dolby Support	Dolby Digital, Dolby Pro Logic II
Digital Inputs	2 coaxial, 3 optical
Weight	14.5 kg
Type	AV Receiver
Output Power per Channel	90 W (8 ohms, 20 Hz - 20 kHz, 0.05% THD)
Frequency Response	10 Hz - 100 kHz (+1, -3 dB)
Input Sensitivity	200 mV
Input Impedance	47 kOhms
Total Harmonic Distortion	0.05%
Input Sensitivity/Impedance	200 mV / 47 kOhms
Tuner Frequency Range	FM: 87.5 - 108 MHz, AM: 522 - 1611 kHz
DTS Support	DTS, DTS-ES, DTS Neo:6
Outputs	Composite: 2, Component: 1
Video outputs	Composite: 2