Schematic Diagram - Panel Section - Sony STR-DH720 Service Manual

STR-DH720/DH720HP
Ver. 1.1
5-27. SCHEMATIC DIAGRAM – Panel Section –
1 2 3
DISPLAY BOARD
A
B
1
C
S100 S108
MUTING TUNING +
D
S109
S101
DIMMER TUNING -
S102 S110
DISPLAY TUNING MODE
E
S103 S111
MUSIC
INPUT MODE
S104
MOVIE/
HD-D.C.S.
F
S105
A.F.D.
S106
2CH/
A.DIRECT
G
S107
MEMORY/
ENTER
H
CN101
5P
I
J
CNP180
5P
K
CL110
R182
R181
4.7k
10k
C197
S180 S181 S183
2200p
TONE MODE SPEAKERS "/1
STR-DH720/DH720HP
• See page 42 for Waveforms. • See page 47 for IC Block Diagrams.
4 5 6 7
ND151
2 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
R165
1
11G CL142
10G
CL143
JS101
10
C163 -22 -23 -24 -24 -24 -24 -16 -24 -16 -20 -22
0.1
33 32 31 30 29 28 27 26 25
9G CL144
34 GRID9
8G -22
CL145
35 GRID8
7G CL146 -22
36 GRID7
6G CL147 -22
37 GRID6
5G -22 IC152
CL148
38 GRID5
PT6315
4G CL149 -22
IC152
39 GRID4
3G -22
CL150
40 GRID3
FL DISPLAY DRIVER
2G
CL151 -22
41 GRID2
1G CL152 -22
42 GRID1
9
CL153 -22
43 VDD
JW165 3.3
44 VSS
7.5
C154
C162
10
0.1 CL154
50V
1 2 3 4 5 6 7 8 9
FB151
1kohm
3.3 0 0 0 1.8 1.7 0 3.3 3
D151
1SR154-400TE-25
T141
D141
CONVERTER
MC2840-T112-1
C141 D145 TRANSFORMER
0.1
DZ2J051M0L
1 2
C142
C143
CL188
47
CL189 0.1
35V
D142
MC2840-T112-1
3
R142
R141
33k
100
9 4
8 5
7 6
POWER KEY BOARD
R192
R191
10k
22k
EN180
C195
2200p
TONE
8 9 10
53 54
R164
1
IC B/D
24 23
-16 CL132 9P
SEG9 22
8P
-24 CL131
SEG8 21
-20 CL130 7P
SEG7 20
-20 CL129 6P
SEG6 19
5P
-14 CL128
SEG5 18
-20 CL127 4P
SEG4 17
CL126 3P
-16
SEG3 16
2P
-24 CL125
SEG2 15
-16 CL124 1P
SEG1 14
3.3 CL123
VDD 13
VSS 12
C155
0.1
CL122
10 11
C158 220p
C157 220p
C156 220p
JS151
10
L142
C147
R143
47uH C146
0.1
1k
100
10V R103
CL191 2.2k
Q141
CL190
CPH5504-TL-E
4
SWITCHING
TRANSISTOR
C145
CL193
0.022 0
0
4
CL194
R102
CL192
47k
R101
1k
C101
680p
40 40
11 12 13 14
2
EN151 1 R176
22k
MASTER VOLUME
3
R177
10k
C150
2200p
C198 2200p
R196
22k
2
EN181 1
INPUT SELECTOR 3
R197
10k
C196 2200p
IC151
PNA4823M03S0
IC151
3.3 3.3
REMOTE CONTROL
SIGNAL RECEIVER
C152
C153
10
0.1
50V
R156
100
CL199
7 0 0 0
C104
C105
8 7 6 5
10
0.1
50V
IC101 IC101
NJM4565M-D
AUDIO AMP
C106
C110
10
0.1
50V
1 2 3 4
0 0 0 -7
CL198
CL197
R113
2.2k C108
D104 D105
33p
DA2J10100L DA2J10100L
C102
C107 33p
D102
0.1
DA2J10100L
C114
R112
220p
47k
R111
1k
C111
R115
680p
75
C103
47p
E
ET101
(CHASSIS)
L VIDEO
R
AUDIO
VIDEO 2
IN
J101
15 16 17
CNS151
25P
CL155
25 -7V
CL156
24 +7V
CL157
23 V2_VIDEO
CL158
22 V_GND
CL159
21 V2_AUDIO_R
CL160
20 A_GND
CL161
19 V2_AUDIO_L
CL162
18 DCAC_SIGNAL
C
CL163
17 MIC_MUTE
CL164
16 DGND
CL165
DIGITAL
15 TONE_JOG
CL166
14 DGND
BOARD
CL167
13 +3.3V_STBY
(2/4)
CL168
12 FL_GND
CL169 CN2116
11 FL_GND
CL170
10 +3.9V DCDC (Page 23)
CL171
9 VOL_JOG
CL172
8 PW_SW
CL173
7 SIRCS
CL174
6 AD2
CL175
5 AD1
CL176
4 INPUT_JOG
CL177
3 FL_LAT
CL178
2 FL_DIN
CL179
1 FL_CLK
O
CL180
1 Mic Mute
CL181
3 GND
USB BOARD
CL182
4 +7V
CN4101
CL183
5 DCAC
(Page 44)
CN152
5P