Ic Data - Yamaha DVD-E600 Service Manual

DVD-E600
I

IC DATA

IC1 : µPD16312GB-3B4 (OPERATION P.C.B.)
8bit CPU
SW
SW
SW
SW
D
KEY
KEY
D
IN
D
OUT
Serial I/F
CLK
STB
V
DD
R
OSC
Key
1
to
4
Key
4
SW
1
4-bit
to
4
SW latch
4
18
1
1
2
2
3
3
4
4
5
OUT
D 6
IN
Vss 7
CLK 8
9
STB
10
1
11
2
Command decoder
Display memory
16 bits x 11 words
Timing generator key scan
Key data memory (4 x 6)
4-bit latch
LED LED
1 4
Key data memory (4 x 6)
33 Grid
32 Grid
Seg
31
16
30 Seg
15
Seg
29
14
28 Seg
13
V
27
EE
26 Seg
12
Seg
25
11
24 Seg
10
Seg
23
9
Dimming circuit
16-bit Seg-
16 11
output ment
latch driver
5
5
Data
selector
11-bit
shift
5
register
Grid
driver
11 6
V V V
DD SS EE
(+5 V) (0V) (-30 V)
5
6
/Grid
7
/Grid
8
/Grid
9
/Grid
10
/Grid
11
Seg
1
Seg
11
Seg /Grid
12 11
Seg /Grid
16 7
Grid
1
Grid
6