Denon AVR-1804 Service Manual

5
5
AVR-1804/884 / AVC-1880
BLOCK DIAGRAM
LINE_1
TV/DBS
LINE_2
LINE_3
CR
CB
Y
DVD/VDP
LINE_3
LINE_2
LINE_1
CR
CB
Y
D-VIDEO INPUT
JAPAN ONLY
VCR2 OUT
MULTI OUT
EX_SR
EX_SL
EX_FR
EX_FL
6CH_INPUT
EX_C
FM ANT
EX_SW
AM ANT
LOOP FILTER
E3 ONLY
MUTING
FROM u-COM
FM
FRONTEND
IF FILTER
PLL CIRCUIT
IF FILTER
AM TUNING
IF AMP
MPX IC
FM & AM
IF IC
L.P.F
--
R
L
BUFF
+
HPF
+
-
+
L/R SUM
DIGITAL
FILTER
ADC
CODEC
AD1837
VOLUME
VOLUME
DIGITAL
FILTER
DAC
+
RMC GND
IN
CXA1511M
RMC IN/OUT
< AVR1804 E1,E2,E3,EK,E1H,E1C >
C-VIDEO INPUT
COMP-VIDEO
INPUT
DVD/VDP
TV/DBS
DVD/VDP
TV/DBS
VIDEO SWITCH
VIDEO SWITCH
VIDEO SWITCH
VCR-1
VCR-2
VCR1 OUT
V.AUX
INH
D-VIDEO OUTPUT
LINE_3 LINE_2 LINE_1
CR
CB
Y
S-VIDEO INPUT
VIDEO SWITCH
VIDEO SWITCH
INH
DVD/VDP
TV/DBS
VCR-1
VCR-2
V.AUX
VCR-1 OUT
VCR-2 OUT
VCR2 OUT
REC_SWITCHIG
ANALOG IN
DIGITAL IN
COAXIAL
OPTICAL_4
OPTICAL_3
OPTICAL_2
OPTICAL_1
DVD/VDP
CDR/TAPE
TV/DBS
VCR1
VCR2
PHONO
+
CD
V.AUX
TUNER
(JAPAN ONLY)
ANALOG OUT
CDR/TAPE OUT
VCR1 OUT
DIGITAL OUT
RCLK1(68)
TCLK1(65)
ROM
512K X 8
TCLK2(47)
RAM
64KX16
74LV244
BUFFER
fs
64fs
64fs
64fs
RBCK(17)
DIR
LC89057W-VF4
DIGITAL AUDIO DECODER
-
SERIAL DATA
I/O PORT
COUT
DIGITAL
FILTER
ADC
FROM MICOM
TC9274-011
INPUT_SWITCHIG
TC9273-004
Lock DetectSelector
XMCK
Selector
&
INPUT
DEMODULATION
DATA
fs
RDATA(21)
RLRCK(20)
RMCK(16)256fs
CCLK
CLATCH
CIN
ALRCK
MCLK
ABCLK
ASDATA
DSDATA1
CLOCKCONTROL PORT
VOLUME
FL/FR/C/SL/SR/SW/SB
fs
256fs
MELODY 32
PF6(41)
RFS1(69)
RCLK0(61)
DR0(60)
DR1(67)
CLK_IN(132)
DT0(56)
TCLK0(57)
+
VOLUME
VOLUME
VOLUME
DIGITAL
FILTER
VOLUME
VOLUME
DIGITAL
FILTER
DIGITAL
FILTER
+
+
DAC
DAC
+
+
+
DAC
SW F SUM
-
-
-
-
--
TUNER PLL
DATA CXP740096
u-COM
CONTROL DATA
DIGITAL AUDIO
AUDIO SWITCHING
TC9164
TC9482
VOLUME
EX_FL
DSP_FL
ANA_HFP
ANA_IN
FLT DRIVER
DATA
LC75721NE
FL DRIVER
EX_C
CENTER
EX_SR
SR
SW
EX_SW
EX_SL
ANA_HFP
ANA_IN
DSP_FR
SL
EX_FR
REMOTE CONT
IN/OUT
12MHz
RESONATOR KEY_MATRIX
TC9184
TONE
POWER AMP
TONE DFT CON.
FL DISPLAY
16-ST-42GNK
SPK A
+
-
+
SPEAKER OUT
+
-
+
FRONT A L
FRONT A R
FRONT B L
-
SPK B
+
+
+
+
-
SURR L
+
-
SURR R
+
-
FRONT B R
+
CENTER
+
BA7626
BA7626
Y
C
1212
9
15
4
5
2
13
14
IC1001
IC1004
IC1001
+5V
MONITOR OUT
Q653
MONITOR OUT
Q1014Q656
12
14
13
14
12133
IC1004
IC1008
3.3V
2.5V
DSP
DSP
DIR
BA7626
IC606
OSD
LC74781
1
15
15
S-VIDEO DET
BA7626
2
IC1001
BA7626
C-VIDEO DET
15
1
2
IC1008
NJM2509V
13 4
3
5
Q1022
IC1008
IC1007
C
1
Q1012
MUTE
+5.6V (Y,CB,CR SWITCHING SAME)
+5.6V
RMC DATA
OUT
KIC9459
AVR
RELAY B+
-36V
FLT
M5-MT
L601
Y/C
MIX
Y/C
ÝÂ×î
YCY
Q1017
7805
+5V (A/D POWER)
FUNCTION,OP AMP
TUNER
VIDEO POWER
+5V (DSP PART PWR)
FUNCTION,OP AMP
CODEC
7915
7805
LOW DROP
7805
7815
MAIN -B
MAIN +B
+
MUTE
-
H/P OUT
SW
+
-
+
PRE OUT
+
-
SURR BACK/MULTI
FL DRIVER
u-COM
FILAMENT AC
7805
RELAY

Denon AVR-1804 Specifications

General

Brand	Denon
Model	AVR-1804
Category	Receiver
Language	English