STR-DA6400ES - Sony Audio Service Manual (repair manual). Page 115

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STR-DA6400ES
STR-DA6400ES
115
115
6-89.  SCHEMATIC  DIAGRAM  - DISPLAY Board (2/2) -
• See page 125 for waveforms.   • See page 148 for IC Pin Function Description.
DISPLAY
(1/2)
31
BOARD
71
3.1
0
2.8
3.2
3.2
3.2
2.8
2.8
3.1
2.8
2.8
2.8
2.8
2.8
3.1
3.1
0
3.2
3.2
3.2
0
0
0
0
3.1
3.1
3.1
3.2
2.4
1.3
1.6
0
3.2
1
2
3
4
5
6
7
8
9
10 11 12 13
15
16
17
18
19
20
21
22
23
24
25
26
29
30
31
32
33
34
35
36
37
38
39
43
44
45
46
47
48
49
50
51
52
14
28
41
42
40
27
μPD78F0527GB(S)-UET-A
IC105
NO USE
NO USE
NO USE
NO USE
RESET
NO USE
NO USE
FLMD0
OSC OUT
OSC IN
REGC
VSS
VDD
BAUDRATE2
BAUDRATE1
NO USE
P33
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
IR OUT
NO USE
NO USE
NO USE
NO USE
UAR
T
 IN
UAR
T
 OUT
A
VREF
AV
S
S
NO USE
NO USE
NO USE
NO USE
NO USE
NO USE
LEARN LED
NO USE
NO USE
LEARN CIR ON
LEARN
IR IN
BAUDRATE3
NO USE
NO USE
NO USE
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74VHCU04FT(EL)
IC104
VSS
VDD
0.47
C159
10k
R184
47k
R187
47k
R188
47k
R189
100
R186
100
R182
100
R180
10V
220
C157
220p
C151
4700p
C150
22k
R171
4.7k
R172
2.2M
R173
47k
R175
470
R177
100k
R179
22k
R178
10k
R174
0.047
C152
0.047
C153
1k
R176
0.047
C155
JL170
1k
R181
GND
D3.3V
IROUT
IR-LEARNING_UCOM_RESET
IR-LEARN-UART_TX
IR-LEARN-UART_RX
FLMDO
100
R185
100
R183
UPDATE_TX
UPDATE_RX
SID1K10CXM
(SIRCS CODE RECEIVER)
D121
16V
47
C160
0.1
C158
0.1
C161
0.1
C156
2SC2712-GL-TE85L
GND SWITCH
Q112
5MHz
X101
100k
R190
JL164
JL167
JL188
JL189
JL190
UPDATE SIGNAL PROCESSOR
IC105
WAVE SHAPPER
IC104
DISPLAY BOARD (2/2)
4
B
6
9
D
10
3
5
C
F
1
E
8
A
2
7
(Page 114)
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