Yamaha DVD-E600, Service Manual

Page: 18 / 40

18
DVD-E600
DVD-E600
■
IC DATA
IC1 :
µ
PD16312GB-3B4 (OPERATION P.C.B.)
8bit CPU
1
2
3
4
5
6
7
8
9
10
11
SW
1
SW
2
SW
3
SW
4
D
OUT
D
IN
Vss
CLK
STB
KEY
1
KEY
2
KEY
3
KEY
4
V
DD
Seg
1
/KS
1
Seg
2
/KS
2
Seg
3
/KS
3
Seg
4
/KS
4
Seg
5
/KS
5
Seg
6
/KS
6
Seg
7
Seg
8
Grid
5
Grid
6
Seg
16
/Grid
7
Seg
15
/Grid
8
Seg
14
/Grid
9
Seg
13
/Grid
10
V
EE
Seg
12
/Grid
11
Seg
11
Seg
10
Seg
9
OSC Vss LED
1
LED
2
LED
3
LED
4
V
DD
Gr
id
1
Gr
id
2
Gr
id
3
Gr
id
4
33
32
31
30
29
28
27
26
25
24
23
12 13 14 15 16 17 18 19 20 21 22
44 43 42 41 40 39 38 37 36 35 34
D
IN
D
OUT
CLK
V
DD
(+5 V)
V
SS
(0V)
V
EE
(-30 V)
Serial I/F
Command decoder Dimming circuit
16-bit
output
latch
Data
selector
11-bit
shift
register
Display memory
16 bits x 11 words
Timing generator key scan
Key data memory (4 x 6)
4-bit latch
Key data memory (4 x 6)
STB
Seg
1
Seg
11
Seg
12
/Grid
11
Seg
16
/Grid
7
Grid
1
Grid
6
LED
4
LED
1
V
DD
R
4
4
5
16
5
5
11
11
6
Key
1
to
Key
4
SW
1
to
SW
4
OSC
4-bit
latch
Seg-
ment
driver
Multip le
x
e
d
dr
iv
er
Grid
driver