Ic Block Diagrams - Sony STR-DH130 Service Manual

• IC Block Diagrams

IC100 PT6315 (DISPLAY BOARD)
44 43
1
SW1
SW2 2
SW3 3
SW4 4
OSC
5 OSC
DOUT 6
DIN 7
Serial
interface
8
CLK
STB 9
KEY1 10
KEY2 11
12 13
42 41 40 39
Grid driver
Command decoder
Display memory
24 bits x 12 words
Timing generator
key scan
Key data memory
(2 x 16 bits)
14 15 16
38 37 36 35 34
Multiplexed driver
segment driver
17 18 19 20 21 22
STR-DH130
GRID10
33
32 GRID11
SEG17
31
30 VEE
29 SEG16
28 SEG15
27 SEG14
26 SEG13
25 SEG12
24 SEG11
23 SEG10
21