Read Sony STR-DG300 Service Manual online
STR-DG300
13
13
STR-DG300
4-3. BLOCK DIAGRAM — KEY/DISPLAY SECTION —
(Page 11)
83
FL DISPLAY DRIVER
IC100
14
I
29
82
29
30
5
6
65
64
54
SW NETWORK
S101–107,124
RV102
MASTER
VOLUME
VOLUME
56
51
49
28
27
77
+3.3V
(STBY)
X1
X0
SDA
SCL
POWER KEY
FLASH1/XM_TX
FLASH2/XM_RX
MD2
MD0
RSTX
SDA
SCL
EEPROM
IC1131
X1101
24MHz
SIRCS
9
4
2
9
FL LAT
9 STB
7 DIN
8 CLK
3
6
8
GRID12
I
GRID1
SEG1
I
SEG16
VOL ENC A
VOL ENC B
VOL ENC B
A/D2
SW NETWORK
S108–112,115
A/D1
1
3
31
32
21
22
RV101
INPUT
SELECTOR
TUNING A
TUNING B
TUNING B
1
3
RV103
TUNING
+/-
ENC A
ENC B
ENC B
1
3
BUFFER
IC101
1
REMOTE
CONTROL
RECEIVER
IC102
OUT
SIRCS
SYSTEM
CONTROL
IC1101 (3/4)
CNS504
S100
FLASH1
FLASH2
MD2
MD0
RESET
RESET
SCL
SDA
1
2
7
6
6
5
8
9
8
9
FLASH
PROGRAMMING
1
2
I
/ I
FL DATA
FL CLK
TUNER/
AUDIO
SECTION
C
39
40
FL101
VACUUM
FLUORESCENT
DISPLAY
IC1111
RESET
31
I
42
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