Denon AVR-1804 Service Manual page 82

1 2
SCHEMATIC DIAGRAMS (4/11)
C103FL
Q101FL
100P-500V
2SD2390
R106FL
4R7(1/4) R112FL Q104FL
10K KSC1845F
R103FL
3K
FL
Q103FL
2SD947F
CP501
F/L 1 Q102FL
2SB1560
F/L 2
G
3 C104FL
100P-500V
4
NF4
NF4 5
R104FR
C103FR
5K6(1) 100P-500V
Q101FR
2SD2390
R105FR
R112FR
5K6(1) R106FR KSC1845F
10K
4R7(1/4)
R103FR
3K
FR
CP502
+15V 1
Q103FR
FR 2
2SD947F
R107FR
FR
3 4R7(1/4)
G 4 Q102FR
2SB1560
NF2 5
NF2 6 C104FR
100P-500V
C103C
Q101C
100P-500V
2SD2390
R106C
C105C
R112C
4R7(1/4) 22N KSC1845F
R103C 10K
C 3K
CP503
C 1
Q103C
C 2SD947F
2
G 3
NF3 4
Q102C
NF3 5 2SB1560
C104C
100P-500V
C103SL
R104SL 100P-500V
5K6(1)
Q101SL
2SD2390
R106SL
R112SL
C105SL
4R7(1/4) 10K
22N
R103SL
SL 3K
CP504
SL Q103SL
1
2SD947F
SL
2
G 3
G 4
Q102SL
NF4
5
2SB1560
C182
NF4 6
10/100 C104SL
G 7 100P-500V
OVER_PT 8
PRE-B 9
R184 10(1)
PRE-B
10
11
GND
GND 12
B- 13
14
B-
B+ 15
R104SR
C103SR
B+ 16 5K6(1) Q101SR
100P-500V
2SD2390
SR
R106SR R112SR C105SR
10K 22N
4R7(1/4)
R103SR
3K
C102SR
10/50
CP505
SR
1
Q103SR
SR 2 2SD947F
G 3
NF5
4
Q102SR
NF5 5 2SB1560
C104SR
100P-(500V)
3 4
TO CONNECTION UNIT
1 2 3 4 5 6 7 8 9 10 11
L101FL
1mH
R118FL
10(1)
CENTER
Q114
DTC114YS
Q104FR
L101FR
1mH
R118FR
10(1)
DC_PROTECT
PROTECT_SENCE
D132
OVR_PROTECT
1SS133T
R181
Q179
4R7(1/4)
KSA916Y
Q104C
L101C
1mH
R118C
10(1)
R117SR
22K
Q104SL
KSC1845F
L101SL
1mH
R117SL
R118SL
22K
10(1)
Q104SR
KSC1845F
L101SR
1mH
R118SR
10(1)
MAIN B'D
5
TO H/P UNIT
CP991
12 13 14 15 16 17 18 19 20 1 2 3
SURR SURR_BACK FRONT_A FRONT_B H/P
Q111 Q115
Q113 Q112
DTC114YS DTC114YS DTC114YS DTC114YS
Q118
C114T
FL
FR
CENTER TO POSISTOR
CN106 CP106
SL
SR
Q180
Q181
POSISTOR
KTA1268BL KTA1268BL
D136 D137
R182
R178
1K MTZ11B 1SS133T
15K
4.7/50
C171B C171C C171A
100N
C175 100N 100N
Q173 Q175
KTC3198Y KTC3198Y
Q174 Q176
Q172
KTC3198Y KTC3198Y KTC3198Y
R183
4K7
Q117
DTC114YS
M68(1/4)
D154
MTZ8.2B
IC105
R158
IC103 ICP-N15
4K7
NJM7805F
Q151
2SC1740SR
D145 CHASSIS
IC104
1N4007
KIA7805A
C151 R148
0R22(1)
47N(M)
C155 C154
C150
100N 47/10
C152 47N(M)
47N(M) R149
D146 0R22(1)
1N4007
IC101
CHASSIS
D141
KIA7815
R142
1N4007
0R22(1)
D143
1N4007
D142
1N4007
C142
IC102
47N(M) R141
D144 0R22(1)
NJM7915
1N4007
S/W PUSH
CAUTION:For continued safety,replace
E2,EK, critical components only with manufacturers
E2A, ONLY
recomended parts (refer to parts list)
C,T,K
CN931
indicates safety critical components.
SW901
To reduce the risk of electric shock,
leakagecurrent or resistance measurements
shall be carried out (exposed parts are
acceptably insulated from the supply circuit)
POWER S/W B'D
before the appliance returned to the customer.
AVR-1804/884 / AVC-1880
6
7
SB_OUT
CP992
1 2 3
C198C
10N
E2 ONLY
C199FL
10N
C192
2N2
C191 C199FR
CHASSIS 2N2 10N
CHASSIS
C199BL
2N2
C197 C199BR
C195
2N2 10N
2N2
CHASSIS CHASSIS
C198SB
10N
C198
2N2
C198SL
10N(EB)
R135
C194
0.1(5W)
2N2
R136
C193 C198SR
R138 2N2 CHASSIS
10N(EB)
1K2 0.1(5W)
CHASSIS
R139 R137
180
560K
D131A
C134
100N(R)-250V
Q171 R133
KTC3198Y 51K
D131B
C135 C133
CHASSIS
100N(R)-250V 100N(R)-250V
F102
E3,EU,N:T8A/125V
E2,EK,E2A,C,T,K:T3.15AL/250V
R151
Q116
2SC1740SR
D148 1SS133T
D151
1SS133T
SUB TRANS
LOCK SW
E3,EU,N SHORT(J234)
D149 1N4007
D152 1N4007
CP931
D150
1N4007
D153
1N4007
R154
( USA ONLY ) 2M2(2)
CHASSIS GND
CP104
TO FRONT
FILAMENT
MAIN POWER TRANS
TO VIDEO B'D
SCHEMATIC DIAGRAMS (4/11)
MAIN UNIT
REC SIGNAL LINE
82
8
A
+ MAIN A
CENTER
- GND
MAIN A L
+
- GND L
SPK A
- GND R
MAIN A R
+
FRONT
+ MAIN B L
- GND L
SPK B
- GND R
+ MAIN B R
+
SURR_BACK_A
-
B
+
SURR_BACK_B
-
L CH
+
- GND L
SURROUND
- GND R
R CH
+
CP103
CP102
C
T2.5AL/250V
K
F101
E3,EU,T,N:T8A/125V
F101
E2,E2A:T2.5AL/250V
AC CORD
CP101
D
E
82