Schematic Diagram - Display Board; Tuning Board, Power Board - Sony STR-K785 Service Manual

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4-16. SCHEMATIC DIAGRAM – DISPLAY BOARD, TUNING BOARD, POWER BOARD –
3 7 6 3 1 5 1 5 0
T E
L 1 3 9 4 2 2 9 6 5 1 3
R136 R135 R134 R133
1k 680 470 330
S135 S134 S133 S132
S136
S114
R115
1k
S115
S152
CN102
4P
w w w
STR-K785
R154
JW
IC102
RPM7240-H9
C114
0.22
R153
100
R137 R138 R139
1.5k 2.2k 4.7k
S137 S138 S139
CN103
3P CN101
7P
R132
220
S131
RV102
ENCODER, ROTARY
VOLUME
x a o
y
. i
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• See page 35 for IC Block Diagram.
8
C108
0.22
R198
2.2
FL101
C101
0.22
IC100
R150 PT6315
82k
Q Q
3 7 6 3
C112
C110
100p C111
2200p
100p
C100
0.22
C115
10
50V
C151 C152
C150
10 220p
0.22
50V
IC101
TC74ACT08P
L102
JW
C154
C153
220p 220p
CNS100
19P
u 1 6 3
.
29 29
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2 4
9 9
C109
0.22
R199
2.2
R175
10
C144
0.22
1 5 1 5 0 8 R101 9 R102 2 R103
220 330
S100 S101 S102 S103
L103
JW
R111 R112
220 330
C157 C156
0.22
0.22 S111 S112
S110
L101
C155
JW
0.22
m
20
c o
STR-K785
2
8 9 9
R107 R108
4 R104 9 R105 8 R106 2 9 9
2.2k 4.7k
470 680 1k 1.5k
S104 S105 S106 S107 S108
R113 R114 R116
470 680 1.5k
S113 S116