1
2
3
4
5
6
7
8
A
B
C
D
E
SCHEMATIC DIAGRAMS (3/11)
AVR-1804/884 / AVC-1880
81
SCHEMATIC DIAGRAMS (3/11)
CNT UNIT
PRE AMP UNIT
81
REC SIGNAL LINE
FROM CPU UNIT
RLY_SURR
FRNT_MUTE
CNT_MUTE
RLY_POWER
RLY_CNT
SW_MUTE
MUTE_+B
RLY_SPK_A
RLAY_H/P
RLY_SPK_SB
MUTE_PWR
-VKK
PROTECT
PWR_DOWN
DSP_GND
+5V(DSP)
CPU_GND
+5.6V(CPU)
SUR_MUTE
SB
GND
SW
FROM CPU UNIT
SB_MUTE
CENTER_MUTE
SURR_MUTE
PRE -B
+15V
SB AMP UNIT
GND
GND
OVER_PROTECT
SURR_B_SIG
GND
SURR_B_MUTE
CNT_MUTE
FRNT_MUTE
S/B
GND
FL
GND
GND
SW
14
13
12
11
10
9
SURR_MUTE
SW MUTE
FRNT_MUTE
CNT_MUTE
SURR_MUTE
SW MUTE
SUR_B_MUTE
SUR_B_MUTE
GND
S/B
GND
12
13
14
GND
SW
9
10
11
FR
C
SL
11
12
17
16
15
14
13
20
19
18
+5.6V(CPU)
CPU_GND
DSP_GND
MUTE_+B
+5V(DSP)
GND
GND
-15V
+15V
RLY_SPK_B
FRONT_MUTE
10
5
6
7
8
9
4
1
2
3
RLY_POWER
RLY_SPK_A
RLY_SURR
RLY_CNT
PWR_DOWN
PROTECT
LIMIT
-VKK
RLY_SPK_SB
RELAY_H/P
MAIN_B-
MAIN_B-
MAIN_B-
SR
GND
SL
FL
GND
FR
C
GND
GND
GND
SR
+15V
-15V
FROM CPU UNIT
PRE_RTN_GND
CONNECTION B'D
RLY_SPK_B
SB_MUTE
9184_DAT
9184_CLK
9184_CE
TONE_DFT
FR
SL
SR
C
GND
GND
GND
GND
3
8
7
4
5
6
2
1
3
2
1
SW MUTE
GND
SW
TO COMP-VIDEO
FL
GND
GND
GND
GND
C
SR
SL
FR
1
2
6
5
4
7
8
3
FL
PRE AMP B'D
F/L
F/L
G
NF4
NF4
G
SR
SR
NF5
NF5
-B
+B
+B
NF3
C
NF3
G
FR
FR
NF2
NF2
G
+15V
-B
GND
GND
PRE_-B
PRE_-B
GND
GND
NF4
NF4
GND
SL
SL
C
OVER PROT
1
2
4
3
7
6
5
9
8
11
10
12
14
13
15
16
17
18
19
CN552
R559
1K2(1)
R570
1K2(1)
R565
1K2(1)
D565
MTZ5.1B
KDS160
D569C
KDS160
D568C
D570C
KDS160
R583C
1K
DTC114YK
Q558C
Q557C
2SA1037KT96
C551M
100/35
3K3
R582C
D563
1N4007
D562
1N4007
D564
1SS133T
C557
10/35
DTA114ES
Q554
R584C
10K
R556
2K2
R552
2K2
R553
560K
C551
2.2/50
R551
22K
R554
3K6
Q551
KTC3200BL
Q552
KTA1268BL
C556
10N
R553FL
100K
R551FL
2K2
C552FL
10/35
R552FL
330
470
R555FL
R554FL
100K
9
10
8
7
6
1
2
3
54
13
11
12
CP556
R564FL
470
R567FL
470K
C554FL
10/35
R556FL
68K
100P-J
C553FL
100N-K
C554T
C556FL
10/35
C560FL
3N3(M)
TREBL+
TREBL-
COM
BASS-
BASS+
16
CLK
GND
TREBL+
TREBL-
COM
BASS-
BASS+
DATA
STB
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VDD
VSS
IC552
TC9184
R558FL
4K7
4
1
2
3
-
+
NJM2068
C555FL
47P
C552T
10/35
R553T
1K
R563FL
390
R559FL
22K
C559FL
22N(M)
C557FL
10N(M)
C561FL
6N8(M)
C558FL
56N(M)
R561FL
33K
R560FL
510K
R562FL
3K3
D560
1SS133T
D561
1SS133T
D558
1SS133T
D559
1SS133T
D556
1SS133T
D557
1SS133T
D554
1SS133T
D555
1SS133T
D552
1SS133T
D553
1SS133T
D551
1SS133T
C555
10N
R557
2K2
D566
1SS133T
R555
2K2
Q556
DTA114ES
R561
1K
R563
470K
Q553
DTA114ES
D567
1SS133T
C558
0.1/50
C552
0.1/50
R562
470K
0.1/50
C553
470K
R568
1K
R573
R560
1K
CN554
12345
CN508
CP554
1
2
3
4
5
CN509
Q501FR
KTC2874B
R501M
470
R503FR
22K
R502FR
100K
R501FR
470
C501FR
22/16
100K
R502C
R503M
470
R503C
22K
R501C
470
C501C
22/16
R502SL
100K
C501SL
22/16
R501SL
1K
Q501SL
KTC2874B
Q501C
KTC2874B
CN553
Q555
DTA114ES
0.1/50
C554
R572
470K
R574
1K
C551S
47N
91
0
8
7
6
1
2
35
41
1
1
2
CN502
C501SR
22/16
R501SR
1K
R502SR
100K
C501M
10/35
Q501SR
KTC2874B
R552FR
330
R553FR
100K
R555FR
470
R554FR
100K
5
4321
8
7
6
9
CN551
C552FR
10/35
2K2
R551FR
100N-K
C553T
C560FR
3N3(M)
8
7
6
5
-
+
IC551
NJM2068
C551T
10/35
C556FR
10/35
C555FR
47P-J
C553FR
100P-J
C554FR
10/35
R567FR
470K
R556FR
68K
R564FR
470
R558FR
4K7
C558FR
56N(M)
C557FR
10N(M)
R560FR
510K
R559FR
22K
R562FR
3K3
33K
R561FR
6N8(M)
C561FR
R563FR
390
R551T
1K
R552T
1K
C559FR
22N(M)
D551T
1SS133T
RL551
Q553T
DTC114YS
R554T
47(1/4)
CP506
R503FL
22K
R505M
470
R502FL
100K
470
R501FL
C501FL
22/16
Q501FL
KTC2874B
C503FR
220P-(500V)
R512FR
10K
C504FL
220P
C503FL
220P-(500V)
10K
R512FL
10/35
C502FL
R504FL
220
R506FL
36K
C505FL
33P-(500V)
Q503FL
KSA992F
Q502FL
KSA992F
R513FL
470K
R507FL
1K8
R505FL
33K
C506FL
100/10
R509FL
1K2(1/4)
C505FR
33P-(500V)
C507FL
2N2(M)
R510FL
470
R513FR
470K
R508FL
47K
Q504FL
KSC1845F
R511FL
47(1/4)
1
2
3
4
5
CN504
C504SR
220P
R503SR
22K
C503SR
220P-(500V)
C502SR
10/35
R512SR
10K
R504SR
220
R506SR
36K
R513SR
470K
R510SL
470
Q502SR
KSA992F
C505SR
33P-(500V)
Q503SR
KSA992F
C506SR
100/10
R509SR
1K2(1/4)
C507SR
2N2(M)
R505SR
33K
R507SR
1K8
R508SR
47K
R510SR
470
47(1/4)
R511SL
Q504SR
KSC1845F
R511SR
47(1/4)
11
10
12
14
13
15
16
8
9
5
6
7
3
4
2
1
CN503
12345
CN507
22K
R503SL
C502SL
10/35
R504SL
220
C504SL
220P
C503SL
220P-(500V)
C504C
220P
R512SL
10K
R510C
470
R508C
47K
R507C
1K8
R509C
1K2(NB)-R
R505C
33K
C507C
2N2(M)
C505SL
33P-(500V)
R513SL
470K
R505SL
33K
C506SL
100/10
Q503SL
KSA992F
Q502SL
KSA992F
C507SL
2N2(M)
R506SL
36K
R509SL
1K2(1/4)
R507SL
1K8
R508SL
47K
10K
R512C
C503C
220P-(500V)
C502C
10/35
R504C
220
C504FR
220P
R504FR
220
C502FR
10/35
R506FR
36K
Q502FR
KSA992F
Q503FR
KSA992F
C507FR
2N2(M)
R509FR
1K2(1/4)
R508FR
47K
R507FR
1K8
C506FR
100/10
R505FR
33K
C506C
100/10
R510FR
470
C505C
33P-(500V)
Q503C
KSA992F
KSA992F
Q502C
R506C
36K
470K
R513C
R511FR
47(1/4)
Q504FR
KSC1845F
3456
12
CN505
Q504SL
KSC1845F
R511C
47(1/4)
Q504C
KTC1845F
12345
CN501
Summary of Contents for AVC-1880
Page 20: ...20 20 AVR 1804 884 AVC 1880 PRINTED WIRING BOARDS MAIN P W B UNIT COMPONENT SIDE ...
Page 21: ...21 21 AVR 1804 884 AVC 1880 FOIL SIDE ...
Page 25: ...25 25 AVR 1804 884 AVC 1880 FOIL SIDE ...
Page 26: ...26 26 AVR 1804 884 AVC 1880 CNT P W B UNIT FOR JAPAN MODEL COMPONENT SIDE ...
Page 27: ...27 27 AVR 1804 884 AVC 1880 FOIL SIDE ...
Page 28: ...28 28 AVR 1804 884 AVC 1880 INPUT PRE AMP P W B UNIT COMPONENT SIDE ...
Page 29: ...29 29 AVR 1804 884 AVC 1880 FOIL SIDE ...
Page 30: ...30 30 AVR 1804 884 AVC 1880 DSP P W B UNIT COMPONENT SIDE ...
Page 31: ...31 31 AVR 1804 884 AVC 1880 FOIL SIDE ...
Page 32: ...32 32 AVR 1804 884 AVC 1880 C VIDEO P W B UNIT COMPONENT SIDE ...
Page 33: ...33 33 AVR 1804 884 AVC 1880 FOIL SIDE ...