Digital Amplifier Circuit Section - JVC FS-Y1 Service Manual

Digital amplifier circuit section

R1237
1.5K
C1238
10/35
R1238
22K
REFA2.5V
C1206
10/35
L
C1138
R1137
10/35
1.5K
R
AHBCTL C1106
10/35
R1138
22K
REFA2.5V
A.GND
2-5
2SC3661-X
C1201
R1234 Q1203
8.2K
10/35
R1235
R1233
SW15V
22K 2.2K
R1201
1.8K
R3020
220
A.GND
A15V
R1228
4.7K
C1222
D1203
33/16
UDZS6.8B-X
A.GND
2SC3661-X
C1101
R1134 Q1103
8.2K
R1135 10/35
R1133
22K 2.2K R1101
1.8K
A.GND
5V
Q3007
KRA103S-X
C3034
1
IC301 IC301
SN74HCU04ANS-X SN74HCU04ANS-X SN74LV00ANS-X
IC302
R3003 R3005
1M 1M
R3004 R3006
C3006
5.6K 5.6K
1/6.3
X3001 X3002
C3002 C3003 C3004 C3005
470P 470P 470P 470P
R1204 C1202 C1203
16K 2200P 2200P
R1205
10K C1232 R1236
180P 3.3K
R1206
A.GND
A15V
C1223 470K
R1203
C1205
R1210 R1211
10/35 820
820 8.2K
4.7/50
IC121
R1229 Q1204
NJM4580M-X
470
UMY1N-W
R1202 C1240
C1224
11K
100P
5V
0.1 A.GND
R1212
R1207
5.6K
10K
IC121
C1204 R1208
330
470P
NJM4580M-X
R1213
R1104 C1102 C1103
5V
R1309 R1310 R1311
16K 2200P 2200P
2.7K 1.8K
R1105
10K
C1132 R1136
R1106 180P 3.3K
A.GND
A15V
C1123 R1103 470K
C1105
R1110 R1111
820
10/35
820 8.2K
4.7/50
IC111 Q1104
R1129
NJM4580M-X
470
C1140
UMY1N-W
C1124 R1102
5V
100P 11K A.GND
0.1
R1112
R1107
5.6K
10K
C1104 R1108
330 IC111
470P
NJM4580M-X
R1113
5V
IC302
5V
R1227
10K
IC302
SN74LV00ANS-X
R3007
1.2K
IC301 IC301 IC301
C3007 SN74HCU04ANS-X
IC302
1/6.3
SN74LV00ANS-X C3008
330P
5V
R1217
18K
C1208
R1222
330P 100K
5V
R1218
IC131 1K
NJM2115V-W
IC122
NJU7109F3-X
REFA2.5V
IC123
C1209
SN74AHC1G00V-X
22P
R1215 R1219
C1210
22K 2.2K
22P
R1216 R1220
C1211
22K 2.2K
22P
5.6K
P.GND P.GND
5V
2.7K A.GND
R1117
18K
C1108
R1122
330P
100K
C1113
R1118
1/6.3
1K
IC131
C1107
NJM2115V-W
1200P
REFA2.5V
IC112
NJU7109F3-X
IC113
C1109
SN74AHC1G00V-X
22P
R1115 R1119
C1110
2.2k
22K
22P
R1116 R1120
C1111
2.2k
22K
22P
5.6K
P.GND P.GND
R1127
10K
SN74HCU04ANS-X
R3008 R3009
680 680
IC301 IC301
IC301
SN74HCU04ANS-X SN74HCU04ANS-X
C3010
C3009
47P
330P
A.GND
5V
C1213
1/6.3 R1223
100
R1224
100
5V
REFA2.5V
C1301
1/6.3
C1309
C1
0.033
A.GND
R1123
0.1
100
R1124
100
5V
Q300
KTA1
IC303
NJM78L05A-T
R3010
270
R3022
270
C3031
C3011
0.1
10/35
C3012
0.33
A.GND