DV-SP302
IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
IC91 : uPD16311 FL Driver-(2)
Serial I/F
OSD
Command decoder
Display memory
20 bit x 16 word
Timming generator
key scan
4-bit latch
5-bit latch
16-bit shift register
Dimming
circuit
20-bit output latch
Data selector
Segment driver
Segment/ grid
driver
Grid driver
Key data memory (4 x 12)
R
V
DD
4
4
20
12
8
8
8
16
8
V
DD
V
SS
V
EE
(+5V)
(-30V)
(0V)
LED
1
LED
6
D
IN
D
OUT
CLK
STB
Key
1
to
Key
4
SW
1
to
SW
4
Seg
1
Seg
12
Seg
13
/Grid
16
Seg
20
/Grid
9
Grid
1
Grid
8
BLOCK DIAGRAM
Summary of Contents for DV-SP302
Page 8: ...DV SP302 BLOCK DIAGRAM FRONT DISPLAY SECTION DV SP302...
Page 9: ...BLOCK DIAGRAM OVERALL...
Page 10: ...DV SP302...
Page 11: ...DV SP302 BLOCK DIAGRAM OVERALL...
Page 12: ...SCHEMATIC DIAGRAM U20 DVD MAIN CIRCUIT BOARD 2 2 A 1 2 3 4 5 B C D...
Page 13: ...DV SP302 E F G H From Power supply unit To Output board...
Page 14: ...SCHEMATIC DIAGRAM U20 DVD MAIN CIRCUIT PC BOARD 2 2 A 1 2 3 4 5 B C D From Front board...
Page 23: ...DV SP302 PRINTED CIRCUIT BOARD VIEW 1 U20 DVD MAIN BOARD 1 Top view...
Page 24: ...DV SP302 PRINTED CIRCUIT BOARD VIEW 2 U20 DVD MAIN BOARD 2 Bottom view...
Page 27: ...DV SP302 IC BLOCK DIAGRAM TERMINAL DESCRIPTION IC6 BA5954 MOTOR DROVER...
