Audio Section - JVC RX-8020VBK Service Manual

Audio section

Audio board
5
4
CN301
MAIN_STB
R944 220
MAIN_CLK
R945 220
MAIN_DAT R946
220
-15V
Sheet 4/10
+15V
VOL_STB
R954 220
VOL_CLK R955 220
VOL_DAT
R956 220
CN303
1SS133-T2
F1_RELAY
D955
F2_RELAY
3
D956
1SS133-T2
FR_RELAY
C_RELAY
Sheet 4/10
SUR_RELAY
SrBL_MUTE
SrBR_MUTE
S_MUTE
SW_MUTE
CN101
QQR0590-001
R937
TUNER_DATA 220
TUNER_CE R938 220
TUNER_CK R939 220
TUNER_MUTE
TUNED
To CN111
STEREO
Sheet 10/10
2
QQR0590-001
R999
10k
CN102
To CN112
RDS_ST R936 220
Sheet 10/10 R935 220
RDS_DATA
R934 220
RDS_CLK
1
A B
R951
R971
12 12
Q971 Q951
2SD2395/EF/ 2SD2395/EF/
C972 C952
0.0047
0.0047
R973
3.3k
C971 C951 R953 C961
100/25 100/25
100/25
2.2k
D971 D951
MTZ10JC MTZ13JC
C975
470/6.3
FL991
C991
0.0056
C992
0.0056
FL992
CN241
CN201
Sheet 4/10 Sheet 4/10
C
R961
R941
12
12
Q941
Q961
2SD2395/EF/
KTA1046/Y/
C942
C962
0.0047 0.0047
R942
R963 12
2.2k
C941
C921
100/25 100/25
R943 2.7k
D961
D941
MTZ13JC
MTZ5.6JC
R976 4.7k
R978
4.7k
R993
6.2k
R995
13k
R997 15k
1SS133-T2
C985
X901 8MHz
0.01
OSD_DAT
OSD_CS
OSD_CLK
M_COMMAND
M_STATUS
M_CLK
M_RESET
M_CS
R911
4.7k
C904
2.2/50
C994
270P
CN933 CN601
Sheet 5/10 Sheet 8/10
D E
R916 R915 R914 R913
3.9 3.9 3.9 3.9
R921 R931
R918
12 33 18
Q921 Q931
2SD2395/EF/ 2SD2395/EF/
C922 C932
0.0047 0.0047 R932
R922 33
12
C931
470/16
R923
R933
D921 2.7k 2.7k
D931
MTZ5.6JC
MTZ6.2JC
Q908
KRC105M
R924
10k
VIDEO5
SrBR_MUTE
SrBL_MUTE
SUR_RELAY
C_RELAY
F2_RELAY
F1_RELAY
HP_RELAY
IC901
MN101C49GJY
MAIN_DAT
MAIN_CLK
MAIN_STB
VOL_DAT
VOL_CLK
VOL_STB
VIDEO4
VIDEO3
VIDEO2
VIDEO1
F1_RELAY
F2_RELAY
C_RELAY
SUR_RELAY
D993
C993
1SS133-T2
4/8_IN
100p
TUNER Signal
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
F
RX-8020VBK
Sheet 1/10
CN81
Sheet 2/10
FW831
CN400
R980
220 M_CLK
R981 220 M_COMMAND
R982 220
M_STATUS
R983 220 M_CS
R984 220 M_BUSY Sheet 9/10
R985 220 M_RESET
R986 220 STANDBY_LED
R987 220 VCR_S/C
EP901
CN931
Sheet 2/10
CN932
SHEET 3/10
G 2-5