76
AVR-1905/785 AVC-1590
SCHEMATIC DIAGRAMS (5/13)
PRE-AMP UNIT
(For ALL MODEL)
SCHEMATIC DIAGRAMS (5/13)
1234567891011
A
B
C
D
E
F
G
H
AVR-1905/785 AVC-1590
R511SBR
47(1/4)
R508SBR
47K
C506SBR
100/10
Q502SBR
KSA992F
Q501SBR
KTC2874B
R515SBR
470
R503SBRM
10K
C501SBR
22/25
R501SBR
470
470K
R513SBR
R511SBL
47(1/4)
2N2(EB)
C507SBL
47/50
C101SBR
R101SBR
2K7
R508SBL
47K
C506SBL
100/10
Q501SBL
KTC2874B
R503SBLM
10K
Q103SBR
2SD947F
R103SBR
3K
R105SBR
5K6(1)
R104SBR
5K6(1)
470K
R513SBL
R111SBR
0R22(1)
R112SBR
10K
R109SBR
0R22(1)
R113SBR
330K
R114SBR
20K
R511FR
47(1/4)
C507FR
2N2(EB)
R510FR
470
1K2(1/4)
R509FR
10/50
C501M
R119SBR
10(1)
R507FR
1K8
C506FR
100/10
33K
R505FR
220P
C504FR
Q501FR
KTC2874B
R503FRM
10K
R513FR
470K
33P-500V
C505FR
220P-500V
C503FR
10K
R512FR
47/50
C101SBL
R511SR
47(1/4)
2N2(EB)
C507SR
470
R510SR
1K2(1/4)
R509SR
Q103SBL
2SD947F
R103SBL
3K
R105SBL
5K6(1)
R104SBL
5K6(1)
R507SR
1K8
C506SR
100/10
33K
R505SR
220P
C504SR
Q501SR
KTC2874B
R503SRM
10K
C104SBL
100P-500V
100P-500V
C103SBL
33P-500V
C505SR
220P-500V
C503SR 22/25
C508SR
R111SBL
0R22(1)
R109SBL
0R22(1)
R112SBL
10K
R511C
47(1/4)
2N2(EB)
C507C
470
R510C
C105SBL
22N
R114SBL
20K
R507C
1K8 33K
R505C
220P
C504C
Q501C
KTC2874B
R503CM
10K
R118SBL
10(1)
R119SBL
10(1)
33K
R506C
33P-500V
C505C
220P-500V
C503C 22/25
C508C
2N2(EB)
C507SL
470
R510SL
Q504SL
KSC1845F
R507SL
1K8 33K
R505SL
220P
C504SL
Q501SL
KTC2874B
33P-500V
C505SL
33K
R506SL
220P-500V
C503SL
Q502SL
KSA992F
220
R504SL R515SL
470
22/25
C508SL 22/25
C501SL
2N2(EB)
C507FL
470
R510FL
470K
R513SL
Q504FL
KSC1845F
1K2(1/4)
R509FL
33K
R506FL
Q502FL
KSA992F
220
R504FL R515FL
470
22/25
C508FL 22/25
C501FL
470K
R513FL 10K
R512FL
1K2(1/4)
R509SBR
KSA992F
Q503SBR
R507SBR
1K8
R505SBR
33K
R504SBR
220
C504SBR
220P
R502SBR
100K
R503SBR
22K
C502SBR
10/50
Q501SBRM
KTC2874B
33P-500V
C505SBR
220P-500V
C503SBR
R512SBR
10K
470
R510SBL
1K2(1/4)
R509SBL
VR107SBR
VR1K(B)
R507SBL
1K8
R505SBL
33K
C504SBL
220P
R502SBL
100K
R503SBL
22K
Q501SBLM
KTC2874B
C505SBL
33P-500V
C503SBL
220P-500V
R512SBL
10K
TP1074R7(1)
R107SBR
100N(R)-250V
C107SBR
R115SBR
2K2
R508FR
47K 22K
R503FR
R502FR
100K
Q501FRM
KTC2874B
47K
R508SR
22K
R503SR
R502SR
100K
Q501SRM
KTC2874B
TP1064R7(1)
R107SBL
47K
R508C
22K
R503C
R502C
100K
Q501CM
KTC2874B
100N(R)-250V
C107SBL
0.5mH
L101SBL
R115SBL
2K2
47K
R508SL
22K
R503SL
R502SL
100K
KSA992F
Q503SL
10/50
C502SL
470
R501SL
KSA992F
Q503FL
10/50
C502FL
470
R501FL
4R7(1)
R106SBR
4R7(1)
R106SBL
4321
CN992
Q504SBR
KSC1845F
C507SBR
2N2(EB)
Q504SBL
KSC1845F
22/25
C508SBR
14 13 12 11 10 9 8 7 6 5 4 3 2 1
CN902
C104SBR
100P-500V
R110SBR
0R22(1)
D107SBR
1SS133T
R108SBR
0R22(1)
C105SBR
22N
100P-500V
C103SBR
Q502SBL
KSA992F
R515SBL
470
22/25
C508SBL
C501SBL
22/25
R501SBL
470
R118SBR
10(1)
R101SBL
2K7
Q504FR
KSC1845F
Q504SR
KSC1845F
R506FR
33K
Q502FR
KSA992F
220
R504FR R515FR
470
22/25
C508FR 22/25
C501FR
D107SBL
1SS133T
R110SBL
0R22(1)
R108SBL
0R22(1)
R113SBL
330K
Q104SBL
KSC1845F
54321
CN503
Q504C
KSC1845F
33K
R506SR
470K
R513SR
C506C
100/10
Q502SR
KSA992F
R509C
1K2(1/4)
Q502C
KSA992F
220
R504SR
10K
R512SR
220
R504C R515C
470
R515SR
470
22/25
C501C
22/25
C501SR
4321
CP554B
987654321
CN501
R511SL
47(1/4)
470K
R513C
C506SL
100/10
1K2(1/4)
R509SL
10K
R512C
10K
R512SL
R503SLM
10K
54321
CN504
R511FL
47(1/4)
47K
R508FL R507FL
1K8
33P-500V
C505FL
C506FL
100/10
33K
R505FL
220P-500V
C503FL
C504FL
220P
Q501FL
KTC2874B
R503FLM
10K
R510SBR
470
33K
R506SBR
C102SBR
10/50
Q102SBR
2SB1560
2SD2390
Q101SBR
KSA992F
Q503SBL
R506SBL
33K
R504SBL
220
C502SBL
10/50
R117SBR
22K
VR107SBL
VR1K(B)
0.5mH
L101SBR
KSA992F
Q503FR
10/50
C502FR
470
R501FR
C102SBL
10/50
Q102SBL
2SB1560
2SD2390
Q101SBL
KSA992F
Q503C
KSA992F
Q503SR
10/50
C502C
10/50
C502SR
470
R501C
470
R501SR
R117SBL
22K
Q501SLM
KTC2874B
22K
R503FL
R502FL
100K
Q501FLM
KTC2874B
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
CN555
Q104SBR
KSC1845F
10987654321
CN505
3456712
CN502
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
CN557
14 13 12 11 10 9 8 7 6 5 4 3 2 1
CP554A
FR
C
-B
SL
F/L
F/L
GND
SBL
GND
C
GND
SBR
GND
NF6
GND
MAIN_+B
MAIN_-B
CNT-MUTE
GND
FR
FL
GND
GND
SBR
MAIN_-B
MAIN_+B
NF5
GND
NF3
NF1
NF4
GND
SBL
GND
GND
MAIN_+B
FR
SR
SR
C
-B
SL
NF7
SBR
GND
NF6
GND
MAIN_-B
MAIN_-B
MAIN_+B
GND
SR
GND
GND
FR
GND
FL
SBL
NF7
SBL
GND
GND
FR
GND
OVER-PROTECT
DC-PROTECT
MAIN_+B
MAIN_-B
SR
FRONT-MUTE
SUR-MUTE
C
C
GND
GND
SL
SR
GND
SBL
SL
FL
SBR
MAIN_+B
MAIN_-B
NF5
+15V
GND
NF2
DC
PROTECT
OVER
PROTECT
SURR-SB-MUTE
GND
NF1
GND
GND
NF4
GND
OVER-PROTECT
TO MAIN BOARD
SBL
SBR
DC-PROTECT
SBR
SL
SBR
SBL
GND
FROM CNT BOARD
FROM PRE-AMP BOARD
PRE-AMP BOARD
NF3
NF2
TO MAIN BOARD
GND
2CH-AMP BOARD
TO PRE-OUT BOARD TO 2CH-AMP BOARD
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