Denon AVR-1906 Service Manual

17
AVR-1906 / AVR-786 / AVC-1620
BD3811K1 (IC701)
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 µcom (Interrupt factor selectable)/Modulation or general I/O switching terminal
36 RERR O PLL lock error, data error flag output
37 DO O µcom I/F, read out data output terminal (3-state)
38 DI I µcom I/F, write data input terminal
39 CE I µcom I/F, chip enable input terminal
40 CL I µcom 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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
25 26
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
27 28 29 30 31 32 33 34 35 36 37 38 39 40
5.1ch Mode SW2 DVD
5.1ch Mode SW1
5.1ch Mode SW2 DSP
BASS
BOOST
LOGIC
TNF2
TNF1
BNF11
BNF21
BNF12
BNF22
BBNF2
OUT2
BBNF1
OUT1
AGND8
AGND7
VCC
AGND6
VEE
AGND5
MUTE
CL
DA
DGND
AGND4
GOUTSR
VINSR
AGND3
IN22 IN21 IN12 IN11 ROUT32 ROUT31 ROUT22 ROUT21 ROUT12 ROUT11 AGND10 GOUT2 VIN2 AGND9 GOUT1 VIN1
IN31
IN32
IN41
IN42
IN51
IN52
IN61
IN62
IN71
IN72
IN81
IN82
INDVDSR
INDVDSL
INDVDC
INDVDSW
OUT2(+)
OUT2(-)
OUT1(+)
OUT1(-)
IN1DSP
IN1MIX
IN2DSP
IN2MIX
INDSPSR
INDSPSL
INDSPC
INDSPSW
AGND1
GOUTSW
VINSW
AGND2
GOUTC
VINC
OUTSW
OUTC
OUTSL
OUTSR
VINSL
GOUTSL
TREBLE
BASS

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