Denon AVR-1604, Service Manual

Page: 66 / 71

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B
C
D
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SCHEMATIC DIAGRAMS (3/8)
AVR-1604/684 / AVC-1580 66
SCHEMATIC DIAGRAMS (3/8)
CNT UNIT
PRE AMP UNIT
SB AMP UNIT
66
SIGNAL LINE
FROM PRE-AMP BOARD
SB
GND
SURR-SB-MUTE
OVER-PROTECT
DC-PROTECT
+15V
SB-AMP BOARD
GND
PRE_-B
MAIN_+B
MAIN_-B
MAIN_-B
MAIN_+B
GND
SB
GND
+24V
DSP_+5V
DSP_GND
-VKK
PROTECT
GND
GND
+15V
-15V
MUTE_+5V
RLY_SPK_A
RLY_SURR
RLY_CNT
H/P_MUTE
RLY_POWER
RLY_SPK_B
RLY_SURR-SB
CNT_MUTE
FRONT_MUTE
SURR_MUTE
SURR_SB_MUTE
CPU_GND
CPU_+5.6V
PWR_DOWN
TO CPU BOARD
GND
CPU_+5.6V
CPU_GND
RLY_SURR-B
RLY_POWER
PWR_DOWN
+24V
GND
-VKK
RLY_H/P
RLY_CNT
RLY_SURR
PROTECT
LIMIT
RLY_SPK_B
RLY_SPK_A
TO MAIN BOARD
GND
GND
GND
GND
C
GND
FR
GND
FL
SR
SL
FRONT-MUTE
CNT-MUTE
SUR-MUTE
GND
SB
SURR-SB-MUTE
FROM CNT BOARD
MAIN_-B
PRE_-B
TO SB-AMP BOARD
MUTE_+B
DSP_+5V
DSP_GND
+15V
-15V
GND
DSP_GND
DSP_+5V
MAIN_-B
MAIN_+B
MAIN_+B
SURR-B
OVER-PROTECT
SURR-SB-MUTE
GND
SB
GND
GND
+15V
DC-PROTECT
SURR-B
SURR-B
TO MAIN BOARD
FROM INPUT BOARD
-15V
SB
GND
FR
GND
GND
FL
SR
SL
GND
C
+15V
GND
GND
CNT BOARD
TO PRE-AMP BOARD
CNT-MUTE
FRONT-MUTE
SURR-SB-MUTE
GND
FL
GND
FR
GND
GND
SR
SL
GND
SB
C
GND
SUR-MUTE
PRE-AMP BOARD
SL
FL
NF4
NF4
GND
F/L
F/L
NF1
NF1
GND
GND
GND
SL
SL
-B
FR
+15V
NF5
NF5
FR
FR
GND
MAIN_+B
MAIN_+B
MAIN_-B
MAIN_-B
SR
C
NF3
C
C
NF3
-B
GND
TO MAIN BOARD
NF2
NF2
SR
SR
GND
OVER
PROTECT
DC
PROTECT
Q501SB
KTC2874B
1
3
1
2
1
1
1
0
987654321
CN558
R501SB
1K
C501SB
22/16
R502SB
100K
1
0
987654321
CN553
47N
C551S
47/50
C101SB
R513SB
470K
10K
R512SB
220P-500V
C503SB
33P-500V
C505SB
R508SB
47K
1K8
R507SB
C506SB 100/10
R510SB
470
R505SB
33K
KSA992F
Q503SB Q502SB
KSA992F
R504SB
220
220P
C504SB R503SB
22K
C502SB
10/50
R506SB
33K
R509SB
1K2(1/4)
2N2(EB)
C507SB 47(1/4)
R511SB
R117SB
22K
KSC1845F
Q504SB
1
5
1
4
1
3
1
2
1
1
1
0
987654321
CN552
R570
1K2(1)
R559
1K2(1)
R556
2K2
C556
10N
D563
1N4007
D562
1N4007
R557
2K2
D565
1SS133T
C551M
100/35
C557
10/50
MTZ5V1
D564
R565
1K2(1)
1
4
1
3
1
2
1
1
1
0
987654321
CN555
R560
1K
Q553
DTA114ES
C553
0.1/50
R568 470K
R573
1K
Q554
DTA114ES
470K R572 C554
0.1/50
R574
1K
Q555
DTA114ES
C501C
22/16
1
6
1
5
1
4
1
3
1
2
1
1
1
0
987654321
CP554
C501SR
22/16
VR106
VR1K(B)
4R7(1)
R107SB
D106
1SS133T
C104SB
100P-500V
R118SB
10(1)
R110SB 0R22(1) R111SB 0R22(1)
1mH
L101SB
R101SB
2K7
Q103SB
2SC947F
Q102SB
2SB1560
TP102
C102SB
10/50
4R7(1) R106SB
R105SB
5K6(1)
R104SB
5K6(1)
R103SB
3K
2SD2390
Q101SB
100P-500V
C103SB
1
1
1
0
987654321
CN556
R114SB
20K
R115SB
2K2
C105SB
22N
R113SB
330K
R112SB
10K
R108SB 0R22(1) R109SB 0R22(1)
Q104SB
KSC1845F
C501FR
22/16
1
3
1
2
1
1
1
0
987654321
CN557
C501M
10/35
321
CP992
R119SB
10(1)
C107SB
100N(R)-250V
1
4
1
3
1
2
1
1
1
0
987654321
CN551
Q551
KTC3200BL
R554
3K6
C555
10N
R553
560K
R552
2K2
R551
22K
2.2/50
C551
KTA1268BL
Q552
1SS133T
D554 D556
1SS133T
D558
1SS133T
D552
1SS133T
D560
1SS133T
D566
1SS133T
D551
1SS133T
R555
2K2
1SS133T
D567
1SS133T
D555
1SS133T
D557 D559
1SS133T 1SS133T
D561 D553
1SS133T
1
6
1
5
1
4
1
3
1
2
1
1
1
0
987654321
CN554
R563 470K C558
0.1/50 Q556
DTA114ES
R561
1K
R562 470K C552
0.1/50
C501FL
22/16
C501SL
22/16
R502SL
100K
R501SL
1K
R503SL
22K
C502SL
10/50
Q501SL
KTC2874B
R509FL
1K2(1/4)
R510FL
470
R513SL
470K
10K
R512SL
2N2(EB)
C507FL
33P-500V
C505SL
220P-500V
C503SL
KSA992F
Q503SL Q502SL
KSA992F
R506SL
33K
C506SL 100/10 R505SL
33K 220P
C504SL
R504SL
220
1K8
R507SL
Q501FL
KTC2874B
R503FL
22K
R502FL
100K
C502FL
10/50
R501FL
1K
33P-500V
C505FL
220P-500V
C503FL
KSA992F
Q503FL Q502FL
KSA992F
10K
R512FL
R504FL
220
470K
R513FL
R506FL
33K
C506FL 100/10
1K8
R507FL C504FL
220P R505FL
33K
R508FL
47K
R508SL
47K
54321
CN504
R511FL 47(1/4)
Q504FL
KSC1845F
R502FR
100K
R503FR
22K
Q501FR
KTC2874B
R501FR
1K
C502FR
10/50
220P-500V
C503FR
33P-500V
C505FR
R510SR
470 2N2(EB)
C507SR
R504FR
220
R506FR
33K
R513FR
470K
KSA992F
Q503FR Q502FR
KSA992F
10K
R512FR
R509FR
1K2(1/4)
2N2(EB)
C507FR R510FR
470
R505FR
33K 220P
C504FR
1K8
R507FR
C506FR 100/10
R508FR
47K
1
0
987654321
CN505
47(1/4)
R511FR
Q504FR
KSC1845F
R501SR
1K
R502SR
100K
R503SR
22K
C502SR
10/50
Q501SR
KTC2874B
R506SR
33K
R510C
470
10K
R512SR
R513SR
470K
2N2(EB)
C507C
33P-500V
C505SR
220P-500V
C503SR
220P
C504SR
R509SR
1K2(1/4)
R505SR
33K
KSA992F
Q503SR Q502SR
KSA992F
C506SR 100/10
1K8
R507SR
R504SR
220
R502C
100K
R501C
1K
R503C
22K
C502C
10/50
Q501C
KTC2874B
33P-500V
C505C
220P-500V
C503C
2N2(EB)
C507SL
R509SL
1K2(1/4)
R510SL
470
10K
R512C
R513C
470K
R509C
1K2(1/4)
KSA992F
Q503C Q502C
KSA992F
R506C
33K
1K8
R507C
C506C
100/10
220P
C504C
R504C
220
R505C
33K
R508C
47K
987654321
CN501
54321
CN503
47(1/4) R511SL
Q504SL
KSC1845F
Q504C
KSC1845F
R508SR
47K
47(1/4)
R511SR
47(1/4)
R511C
3
4
5
6
71
2
CN502
Q504SR
KSC1845F