Sony BVP-900 Series, Maintenance Manual, Page: 175 / 520

3-15
BVP-900
BVP-900P
3-15
AT-73
Block Diagram Block Diagram
AT-73
AT-73
LOT NO. 709-
IC105
BUFF
12 14
IC105
BUFF
IC105
BUFF
IC105
BUFF
10 8
5 7
3 1
BUFF
12 14
BUFF
BUFF
BUFF
10 8
5 7
3 1
IC106
IC106
IC106
IC106
52
53
54
55
56
57
58
59
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
43
44
45
46
47
48
49
50
TMCI
FTI1
FTI2
FTI3/TMRI
FTOB1/FTCI1
FTOA1
FTOB2/FTCI2
FTOB3/FTCI3
FTOA2
61
+5V
10
69
70
78
67
66
TXD
RXD
IRQ1
XTAL
EXTAL
RES
2
4
6
8
10
12
14
16
1
3
5
7
9
11
13
15
S1
IC103
RESET
2 5
X101
VCO
CN102
24
13
15
VD IN
PANEL DATA IN
CN102
PANEL DATA OUT
CN103
CN102
CN102
CN103
CN103
CN103
CN103
CN103
CN103
CN103
CN103
22
23
9
10
11
12
13
14
15
16
17
17
18
19
20
21
22
23
24
SWIN0 IN
SWIN1 IN
SWIN2 IN
SWIN3 IN
SWIN4 IN
SWIN5 IN
SWIN6 IN
SWIN7 IN
VF DTL CONT OUT
AT I/O 1
RV 1 IN
AT I/O 2
RV 2 IN
RV 3 IN
RV 4 IN
RV 5 IN
RV 6 IN
RV 7 IN
RV 8 IN
IC104
TM0
IRQ0
WAIT
79
77
76
17
16
15
DI
CLK
LD
A01
A02
A03
A04
D/A
CONV.
IC102
4
5
6
7
CN103
CN102
49
50
18
19
20
21
AT I/O 1
AT I/O 2
CURSOR H POSI OUT
CURSOR H WIDTH OUT
CURSOR V POSI OUT
CURSOR V WIDTH OUT
RV101
TALLY DIMMER
8
48
3
4
5
6
CN102
CN103
CN102
CN103
CN103
CN103
CN103
+5.5V IN
STANDBY DC IN
TALLY DIMMER OUT
STANDBY DC IN
+5.5V IN
STANDBY DC OUT
+5V
REG
Q101,IC101
+5V
LINE
80
1
2
3
38
39
40
41
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
DS
RD
A16
A17
A18
A19
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
A3
A4
A5
A6
AS
W R/
MICRO
PROCESSOR
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
SWL0 OUT
LEDOUT0 OUT
LEDL0 OUT
SWL1 OUT
SWL2 OUT
SWL3 OUT
SWL4 OUT
SWL5 OUT
SWL6 OUT
SWL7 OUT
LEDOUT1 OUT
LEDOUT2 OUT
LEDOUT3 OUT
LEDOUT4 OUT
LEDOUT5 OUT
LEDOUT6 OUT
LEDOUT7 OUT
LEDL1 OUT
LEDL2 OUT
LEDL3 OUT
LEDL4 OUT
LEDL5 OUT
LEDL6 OUT