Denon AVR-1604, Service Manual

Page: 6 / 71

6
6
AVR-1604/684 / AVC-1580
BLOCK DIAGRAM
LOOP FILTER
FM
FRONTEND
TUNER
SR
SL
SW
C
FR
FL
TUNER PART
FM ANT
AM ANT
6CH_EX_INPUT
IF AMP
IF FILTER IF FILTER
IF IC
FM & AM
<AVC1570X ONLY>
AM TUNING
PLL CIRCUIT
FROM u-COM
MUTING
L.P.F
MPX IC
FRONT IN
OPTICAL 3
V.AUX L/R
V.AUX VIDEO
ANALOG IN
CDR/TAPE
ANALOG IN
CD
VCR
CDR/TAPE
TV/DBS
DVD/VDP
AUX
VCR
ANALOG OUT
ADC
ADC
HPF
BD3811K1
ALRCK
SERIAL DATA
COUT
MCLK
I/O PORT
DSDATA1
ASDATA ABCLK
DIGITAL
FILTER
DIGITAL
FILTER
DIGITAL
FILTER
VOLUME
VOLUME
VOLUME
DIGITAL
FILTER
DIGITAL
FILTER
SDOUT
VOLUME
DIGITAL
FILTER
DIGITAL
FILTER
VOLUME
VOLUME
AUDIO CODEC
AD1837
DIGITAL
FILTER
DIGITAL
FILTER
VOLUME
DIGITAL
FILTER
VOLUME
INPUT SELECTOR & VOLUME
DVD/VDP
TV/DBS
VCR
+
+
DAC
DAC
DAC
-
VIDEO INPUT MUTE
+
+
DAC
DAC
+
+
+
DAC
DAC
DAC
-
-
EX_C
CENTER
EX_SR
SR
SW
ANA_IN
DSP_FR
EX_FR
-
DSP_FL
EX_FL
SL
EX_SL
-
+12V
-
EX_SW
2CH-VOLUME IC
BD3812F
MICOM, FLT DRV
ENCODER
DIR
CODEC
DSP
RMC_IN/OUT
+2.5V
+3.3V
CXA1511M
RMC IN/OUT
DVD/VDP
TV/DBS
MONITOR OUT
COMPONENT VIDEO INPUT
( Y, B-Y, R-Y ) BA7625*1,BA7626*2
VIDEO SWITCH
<AVR1604
ONLY>
VIDEO SWITCH
LA7952*1
( C, Y ) LA7952*2
VIDEO SWITCH
DVD/VDP
TV/DBS
VCR
S-VIDEO INPUT
VCR OUT
MONITOR OUT
VCR OUT
MONITOR OUT
+12V
OP AMP
INPUT/VOL
+5V
A/D POWER
RELAY
VIDEO
7812
7805
MAIN +B
OP AMP
INPUT/VOL
TUNER
DATA IN (REMOCON)
+5.6V(CPU)
7805
COMPONENT
SEL1/2
-VKK
MAIN -B
-36V
DAC
DIGITAL
FILTER
INPUT
DIGITAL IN
OPTICAL 2
OPTICAL 1
COAXIAL
Selector
X-TAL
OPTICAL
DIGITAL OUT
ROM
512k X 8
RAM
64k X 16
RDATA(21)
XMCK
FROM
MICOM CLATCH
CIN
CCLK
DIR
DeModulate
Lock Detect
&
DATA
Selector
fs
64fs
256fs
LC89057W-VF4
DT0(56)
74LV244
BUFFER
DATA
256fs
64fs
64fs
fs
DR1
CLKIN
(32)
DR0
fs
FL/FR/C
SL/SR
CONTROL PORT
MUTE
SW F
MIXING
TCLK1(65) RCLK1(68) RFS3(41) RFS1(69) RCLK0(61) TCLK0(57) TCLK2(47)
SW/SB
CLOCK
RESET
DSP
DIGITAL AUDIO DECODER
MELODY 32
AVC1570X / AVR1604 BLOCK DIAGRAM
SCDIN
INTREQ
SCDIO
SCCLK
CS
FROM
MICOM
KEY_MATRIX RESONATOR
12MHz
ANA_IN
DATA
TUNER PLL
DATA
FLT DRIVER MICOM
CXP740096
PART DATA
DTS/DD/PL II
BD3811K1
+
FL DRIVER
+
LC75721NE
+
FL DISPLAY
16-ST-42GNK
+
FR
-
SPK B
FL
FR
+
-
-
+
+
SPK A
FL
-
+
+
-
H/P OUT
7915
7815
AC OUTLET
7805
FILAMENT AC
7805
+
MUTE
+
+
+
+ +
+
+
+
+
-
+
-
+
-
SURR R
SURR L
-
+
CENTER
SURR BACK
SPEAKER OUT
AC CORD
PRE OUT
SUB WOOFER