Denon AVR-2803 Service Manual

24
24
AVR-2803/983/AVC-2870
TC94A27UG(AD:IC371,376)
Function
Pin
No.
Pin Name I/O
* For latch-up countermeasure, perform each power supply ON/OFF in the same timing.
28 XOUT O X’tal osc. connecting output terminal
29 XIN I X’tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz)
30 DVDD — Digital power
31 DGND — Digital GND
32 EMPHA/UO I/O Emphasis information/U-data output/Chip address setting terminal
33 AUDIO/VO I/O Non-PCM detect/V-flag output/ Chip address setting terminal
34 CKST I/O Clock switch transition period output/Demodulation master or slave function switching terminal
35 INT I/O Interrupt output for ∝com (Interrupt factor selectable)/Modulation or general I/O switching terminal
36 RERR O PLL lock error, data error flag output
37 DO O ∝com I/F, read out data output terminal (3-state)
38 DI I ∝com I/F, write data input terminal
39 CE I ∝com I/F, chip enable input terminal
40 CL I ∝com I/F, clock input terminal
41 XMODE I System reset input terminal
42 DGND — Digital GND
43 DVDD — Digital power
44 TMCK/PIO0 I/O 256fs system clock input for modulation/General I/O in/output terminal
45 TBCK/PIO1 I/O 64fs bit clock input for modulation/General I/O in/output terminal
46 TLRCK/PIO2 I/O fs clock input for modulation/General I/O in/output terminal
47 TDATA/PIO3 I/O Serial audio data input for modulation/General I/O in/output terminal
48 TXO/PIOEN O/I Modulation data output/ General I/O enable input terminal
NC
L‑TVR‑REFB
L‑TVR‑1NB
L‑MVR‑1NB
L‑MVR‑OUTB
L‑TVR‑OUTB
L‑MVR‑AGNDB2
L‑MVR‑AGNDARE
L‑MVR‑AGNDARE
L‑MVR‑AGNDA2
NC
L‑MVR‑AGNDB1
NC
12
1110
9
87654321
13
14
15
16
17
19
18
20
21
22
44
43
42
41
40
39
37
38
36
35
34
23
24
25
26
27
30
29
28
31
3233
R‑TVR‑REFB
R‑TVR‑1NB
R‑MVR‑1NB
R‑MVR‑OUTB
R‑TVR‑OUTB
R‑MVR‑AGNDB2
R‑MVR‑AGNDA1
R‑MVR‑AGNDA2
R‑MVR‑OUTA
NC
R‑MVR‑AGNDB1
L‑MVR‑INA R‑MVR‑INA L‑TVR‑INA L‑TVR‑OUTA
L‑TVR‑REPA R‑TVR‑REF
R‑TVR‑INA
R‑TVR‑OUTA
NC
CS1
VDD
TEST
GND
MUTEM
CS2
CK
MUTE
VSS
STB
DATA
LatchLatch
Levelshiftcircuit
Test&
autoclearcircuit
Timing
generating
circuit
Latch
Latch
LatchLatch Latch
Latch
Latch Latch
Latch
Decodercircuit
24bitshiftregister
Decodercircuit
Latch

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