Denon AVR-1804 Service Manual page 80

1 2
SCHEMATIC DIAGRAMS (2/11)
R998
48 47
10K
1 2
IC823
CB808
R999
BEAD 10K
3.3V BEAD
C825
1/50
C826
10/35
CB803
BEAD
BEAD
1
44
C875
10N-K
20 19 18 17 16 15 14 13 12 11
IC811
74LCX244
C835 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10
CN801
470/10
+5V(DSP) 1
DSP_GND 2
AD1837_RST 3
AD1837_RST
4
AD1837_CE AD1837_CE
89057_1837_SCLK 5 89057_1837_SCLK
89057_1837_SDOUT 6 89057_1837_SDOUT
7
89057_CE 89057_CE
M32_SCLK 8 M32_SCLK
M32_SDOUT 9 M32_SDOUT
M32_CE 10
M32_CS
M32_RESET 11 M32_RESET
89057_RESET 12 89057_RESET
EPROM_RESET 13
14
89057_SDIN 89057_SDIN
M32_SDIN 15 M32_SDIN
M32_INTREQ 16
M32_INTREQ
IC817
OUT
C813
L806
OPT 47/10
OUT 4.7UH
+5V
GND
C812
100N-K
IC801 C811
C810 L805
100N-K
47/10 4.7UH
+5V
OPT1
GND
IN
C801 C820
IC802 L802
100N-K 47/10
4.7UH
+5V
OPT2 GND
IN
IN
IC803 C807 C827
L804
100N-K 47/10
4.7UH
+5V
OPT3
GND
IN
JACK801
L807 C817
R848
2.2UH 0.1/50
100
COAX1
C818
10N-K
C944 CB812
10N-K BEAD
BEAD
C944,CB812 ===>AVR1804 ONLY
C968 C958 ===>AVR1604 ONLY
10N-K
3 4
DSP_A1
TP13
DSP_113Pin
46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
108 107 106 105 104 103 102 101 100
IC805 109 A21
M29W800A
110 BGH
R963
111
10K BG
112 BR
113 BMS
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
R965 10K 114 IOMS
R967 10K
115 MS0
116 MS1
R968 10K 117 MS2
118 VDDEXT
R969
C847 119 MS3
10K
100N-K 120 ACK
121 WR
R1000 47
122 RD
123 D0
124 D1
TP15
125 D2
DSP_121Pin
126 D3
C842
127 VDDINT
100N-K R1012 47
TP16 128 D4
DSP_122Pin
129 GND
C848
100N-K 130 CLKOUT
TP17
131 VDDEXT
DSP_132Pin
132 CLKIN
133 XTAL
134 GND
135 D5
136 D6
137 D7
138 D8
139 D9
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
140 D10
141 D11
142 D12
IC806
IS61LV6416 C849 100N-K 143 VDDEXT
R1021 47 144 D13
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
R1022 47
R1023 47
C872
100N-K
C874
10N-K
TP5 TP4
DSP_39Pin DSP_38Pin DSP_37Pin
20 19 18 17 16 15 14 13 12 11
CB809
BEAD
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10
XTAL1 R954
12.288MHz 1M
C871
C868
100N-K
24P-J
C823
10/35 C869
24P-J
CB810
BEAD
36 35 34 33 32 31 30 29 28 27 26 25
R975
10K
37 DO 24
38 DI SDIN 23
SLRCK
39 CE SBCK 22
40 CL RDATA 21
41 XMODE RLRCK 20
R979 C851 IC807
100 42 DGND DVDD 19
LC89057
43 DVDD DGND 18
C873 100N-K
20 19 18 17 16 15 14 13 12 11 44 TMCK/PIO0 RBCK 17
10N-K
45 16
ROM_48 TBCK/PIO1 RMCK
ROM_17 46 TLRCK/PIO3 AGND 15
TDATA/PIO3 AVDD
ROM_16 47 14
TXO/PIOEN LPF C853
48 13
100N-K
RXOUT
R974 10K
1 2 3 4 5 6 7 8 9 10 11 12
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10
R980
OPEN
14 13 12
1 2 2 3 3
89057_INT
89057_AUDIO
89057_EMPHA
1 2 3 4 5 6 7 8
CN803
FROM CPU UNIT
5
CN705
2 1
4 3
6 5
JTAG CONTROL JACK
8 7
10 9
12 11
14 13
R1024
47
75 74 73
72
71
BYPASS
BMODE1(GND)
70
BMODE0(OPEN)
RFS1 69
RCLK1 68
DR1 67 TP12
DSP_68Pin
TFS1 66
C966
TCLK1 65
470/10
DT1 64
R1026
VDDEXT 63
OPEN OPEN
RFS0 62 TP11 DSP_62Pin
JA22
RCLK0 61 TP10 DSP_61Pin
JA27 0
60 TP19 DSP_60Pin
DR0
JA30 OPEN
TSF0 59
VDDINT 58
C844
TCLK0 57
IC804 100N-K
MELODY32 DT0 56
R1027
GND 55
47
GND 54
R961
TXD 53 10K
RXD 52
RFS2 51 TP9 DSP_51Pin
RCLK2 50 TP8 DSP_50Pin
DR2 49 TP7 DSP_49Pin
TFS2 48
TCLK2 47
46
DT2
TMR2 45 R1028
OPEN
TMR1 44
TMR0 43
PF7 42
PF6 41
VDDEXT 40 TP6
DSP_41Pin
PF5(SDIN) 39
PF4(SDOUT) 38
(PF3)CCLK 37
CB805
BEAD
BEAD
C937
10/35
IC824
2.5V
C843 R958
100N-K 10K
IC822
C840 NJM7805
10N-K
C938
1/50
C939
10N-K
CB811
OPEN
TP3 TP1 TP2
DSP_35Pin DSP_36Pin BEAD
R1005
0 CB806
BEAD
20 19 18 17 16 15 14 13 12 11
C870
10N-K
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10
33 33 32 32 31 31 30 30 29 29 28 28 27 27
40 40
41 41 DSDATA1 NC
42 42 DSDATA2 AGND
43 43 DSDATA3 ADCRP
44 44 DSDATA4 ADCRN
R1025 47 45 ABCLK IC808 ADCLP
CODEC_46Pin
AD1837
TP20 46 ALRCLK ADCLN
MCLK
R1033 0 47 AVDD
0 48 ODVDD FILTR
R1034
49 ASDATA FILTD
COUT AGND
R1035 0 50
R1036 47
51 CCLK OUTR2
52 NC
OUTL2
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 13
CB807
BEAD
C954
BEAD
OPEN
100
R952
14 13 12 11 10 9 8
14 13 12 11 10 9 8
11 10 9 8
PR
CLR CLK Q
CLK Q
D CLR Q
D PR Q
1 2 2 3 3 4 4 5 5 6 6 7 7
1 2 2 3 3 4 4 5 5 6 6 7 7
4 4 5 5 6 6 7 7 JA24 JA26
0 OPEN
JA25
OPEN
AVR-1804/884 / AVC-1880
6
7
R859L
5K6
R861L
R862L C865L A/D_IN_L
470
5K6 120P-J
IC816A R931L C864L
IC815A BA4510F 12K 47/16
BA4510F R860L - 2
R863L 5K6
- 2 1
470
1 + 3
R932L
150K R931
+ 3
5K1
R932
C926
C925 4K7
10/35 100N-K
R859R
5K6
R861R C865R
470 R862R 120P-J
5K6 A/D_IN_R
C857
100N-K
R931R C864R
C856 12K 47/16
R860R 8
100N-K - 6
5K6
8
- 6 7
7 + 5 R932R
4 150K R923
R863R + 5 C916
5K1
470 4 100N-K
C917 R922
10/35 4K7
C874SL 560P-J
C880SL R866SL SL
R867SL
10/35 4K7
4K7
R864SL NJM2068
R870SL
100K IC817A
5 1K
7
6 8 C875SL
R871SL
10/35 C876SL
100K
3N3(EB)
R869SL
5K6 KTC2874B
R872SL
Q804SL
C859 2K2
R868SL
100N-K
4K7
R866SR C874SR
4K7 560P-J
SR
C880SR
R867SR
10/35 C854
4K7
100/25
R864SR
R870SR
100K 3 4
1K
1
2
C875SR
10/35 R872SR
2K2
C858
R869SR KTC2874B
100N-K
Q804SR
5K6
C880C R866C C874C
10/35 4K7
560P-J
R867C
4K7
NJM2068
C
IC818A
R870C
5
1K
7
6 8 C875C
10/35
KTC2874B
Q804C
R869C R872C
5K6 C861 2K2
R868C 100N-K
4K7
C880SW
R866SW C874SW
10/35 C855
4K7 560P-J
100/25
R867SW
4K7
SW
R870SW
C875SW
3 4 1K
10/35
1
2
KTC2874B
C860
Q804SW
R869SW 100N-K
R872SW
5K6
R868SW 2K2
26
4K7
25
24
23 C880FL
R866FL C874FL
10/35
4K7 560P-J
22 22
21 21
C955 R867FL
20 20 100N-K 4K7
NJM2068 FL
R864FL C875FL R870FL
19 19 100K IC819A
C947 5 10/35 1K
18 18
100N-K 7
17 17 6 8
C949
10/35
16 16
15 15 KTC2874B
C952
R869FL Q804FL
14 14 100N-K R872FL
5K6
2K2
C953
10/35
C880FR
R866FR C874FR
10/35
4K7 560P-J
FR
R867FR
4K7
C875FR
3 4 10/35
1
2 R870FR
1K
KTC2874B
R869FR R872FR Q804FR
5K6 C862 2K2
100N-K
OPEN
R1042
C880SB R866SB C874SB
10/35 4K7 560P-J
R867SB
4K7
R864SB NJM2068 SURR_B
C875SB R870SB
100K IC820A
5 10/35 1K
7
6 8
KTC2874B
R869SB
Q804SB
R872SB
5K6 2K2
R841
470
Q805
DTA114EK
Q807
3 4
DTA114EK
1
Q806
2
DTC114EK
D807
KDS160
SCHEMATIC DIAGRAMS (2/11)
DSP UNIT
REC SIGNAL LINE
80
8
A
B
CN802
SB
GND
SL
GND
SR
GND
C
GND
SW
GND
FL
GND
FR
GND
ANAL_L
GND
ANAL_R
+15V
-15V
C
D
E
80