Read Sony STR-DE685 Service Manual online
STR-DE685
19
19
4-4. BLOCK DIAGRAM — KEY/DISPLAY SECTION —
83
61
7
14 - 29
42 - 31
82
34
33
5
6
62
8
63
29
32
31
30
26
60
59
54
38
9
1
2
4
SW NETWORK S100-109
39
SW NETWORK S110-118
40
SW NETWORK S120-127
41
SW NETWORK S130-139
RV102
MASTER
VOLUME
VOLUME
LED
DRIVERS
Q100-104
56
28
27
51
49
77
+3.3V
(STBY)
RESET
IC1602
X1
X0
SDA
EEPROM
SCL
POWER KEY
SP SWITCH/FLASH1
FLASH2
MD2
MD0
RSTX
FL101
FLUORESCENT
INDICATOR
TUBE
F1
F2
DIN
CLK
STB
SW1
SW2
3
SW3
SW4
SDA
SCL
EEPROM
IC1604
65
64
CONTROL A1 IN
CONTROL A1 OUT
CONTROL A1 OUT
I/O
BUFFER
Q1607,D1603
X1601
20MHz
87 SW4
VIDEO SW
VIDEO SW4
88 SW3
VIDEO SW3
89 SW2
VIDEO SW2
90 SW1
VIDEO SW1
DIN
FL DRV/
LED DRV
BUFFER
IC101
+5V-1
CLK
FL_STB
MCH LED
AFD
2CH
MODE
DCS LED
SIRCS
VOL(A)
VOL(B)
VOL(B)
A/D0
A/D1
A/D2
A/D3
5
4
2
1
10
9
6
3
8
1
3
58
57
RV101
ROTARY ENCODER
(JOG DIAL)
JOG(A)
JOG(B)
JOG(B)
1
3
FL DISPLAY
DRIVER
IC100
SEG1-16 GRID1-16
Q109
Q111
Q110
LED DRIVER
Q106-108
LED
MATRIX
D110-114
D100,
D102-104
D102-104
1
REMOTE
CONTROL
RECEIVER
IC102
OUT
SIRCS
+5V-1
SYSTEM
CONTROL
IC1601 (3/4)
CNS3
FLASH1
FLASH2
MD2
MD0
RESET
RESET
1
2
7
6
6
5
FLASH
PROGRAMMING
S141
AFD-LED
MCH-LED
MODE-LED
DCS-LED
2CH-LED
1
2
I
/ I
S142
SPEAKER
A/B
J254
CTRL
A1
VIDEO
SECTION
5
(Page 20)
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