Denon AVR-1804 Service Manual page 85

1 2
SCHEMATIC DIAGRAMS (7/11)
4.7/50
VCR1
Y C
V.AUX/VCR2
Y C
R659
68
TV/DBS
C659
470/6.3
Y C
DVD/VDP
R662
68
Y C
C661
470/6.3
VCR2 OUT
R665
Y C 68
C663
470/6.3
VCR1 OUT
Y C
4.7/50
MONITOR OUT
4.7/50
Y C
R681A
47K
4.7/50
C681A
47N
D655
KDS160
D656
KDS160
C680
1/50(4*7)
R671
68
C666
470/6.3
R674
68
C668
470/6.3
R677
68
C670
470/6.3
3 4
C651
C652
4.7/50
C653
4.7/50
C654
4.7/50
Q607
DTC114TK
Q651
KTA1266Y
Q608
DTC114TK
Q652
KTA1266Y
Q609
DTC114TK
Q653
KTA1266Y
C655
R670
1K
C656
C657
C658
4.7/50
Q610
DTC114TK
Q654
KTA1266Y
Q611
DTC114TK
Q655
KTA1266Y
Q612
DTC114TK
Q656
KTA1266Y
5
S_VIDEO B'D
A B E MONITOR 0UT C D E V OUT1 V OUT2
L L * IN1 L L * IN1 L L * IN1
H L * IN2 H L * IN2 H L * -
L H * IN3 L H * - L H * IN3
H H L IN4 H H L IN4 H H L IN4
H H H IN5 H H H IN5 H H H IN5
R685 1K
R686 1K
R687 1K
R688
1K
R689
1K
IC663
D657 R652T
7805(LOW DROP)
1N4007 0R22(1)
AC
7805
GND
AC
C651T
D658 R651T
1N4007 47N(M) 0R22(1)
FROM TRANS
AVR-1804/884 / AVC-1880
6
7
MULTIOUT B'D
E3 ONLY
R201ML R202ML
R204ML
470 470 220 C202ML
Q202ML
Q201ML R203ML KTC2874B
KTC2874B
10K R205ML
FROM INPUT UNIT 22K
Q201MR
R205MR
CN610 KTC2874B
R203MR 22K
MULTI-ROOM L 1
R201MR 10K Q202MR
GND
2
C203MR 470 KTC2874B
R202MR
MULTI-ROOM R 3
470
4.7/50 R204MR C202MR
GND 4
220 4.7/50
5
MULTI-MUTE
FROM_CVIDEO UNIT
CN600
MONITOR_MUTE
VCR1-MUTE
VCR2-MUTE
C-SIGNAL
Y-SIGNAL
TO INPUT UNIT
F
CDR/TAPE-CNT B'D
G
A
CP703
B
CDR/TAPE IN-R
C
GND
D
CDR/TAPE IN-L
GND
CDR/TAPE OUT-R
GND
E
1
CDR/TAPE OUT-L
2 H
3 SVIDEO_Y_INPUT
SVIDEO_C_INPUT
4
5 S-VIDEO(C)MONITOR OUT
6 S-VIDEO(Y)MONITOR OUT
RMC_GND
7
8 S-MONI DET
9 +5.6V
VGND
10
11 RMC_+5V
12 RMC_DATA
FROM_CVIDEO UNIT
OPTICAL INPUT B'D
F
G
VGND
+5.6V
RMC_GND
RMC_DATA
1
RMC_+5V
IC803 2
CP603D
3
TO_DVIDEO_COMP UNIT
L301O
4.7uH
CN603D
SCHEMATIC DIAGRAMS (7/11)
S-VIDEO UNIT / MULTI-OUT UNIT /
CDR-CNT UNIT / FRONT-OPTICAL UNIT
REC SIGNAL LINE
85
8
A
MULTI-L OUT
4.7/50
JACK201M
C204ML
10N-K
MULTI-R OUT
B
C
FROM CVIDEO UNIT
CDR/TAPE IN-R
GND
CDR/TAPE IN-L
GND
CDR/TAPE OUT-R
GND
CDR/TAPE OUT-L
CP704
D
CN606
5 GND
FROTN_OPT_IN
4
3 DGND
2 DSP_+5V
1 GND
E
85