Sony HCD-BC150 Service Manual page 40

HCD-BC150/BC250
Ver 1.3
– TRANSLATION Board –
IC701, 711 BA6956AN
TSD
1 2 3 4 5
– FL Board –
IC803 PT6315
44 43
LED1
1
LED2 2
3
LED3
LED4
4
OSC
5 OSC
DOUT
6
DIN
7
Serial
interface
CLK
8
STB
9
KEY1
10
KEY2 11
12 13
40
CONTROL LOGIC
6 7 8 9
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
– PANEL Board –
IC802 BU2152FS
31 30
32 29 28
CONTROLLER
SHIFT
REGISTER
Q1-Q24
1
2 3 4 5
38 37 36 35 34
Multiplexed driver
segment driver
15 16 17 18 19 20 21 22
26 25 24 23 22 21 20
27
LATCH
10
6 7 8 9 11 12 13
SEG19/GRID10
33
32 SEG18/GRID11
SEG17/GRID12
31
30 VEE
SEG16/KS16
29
28 SEG15/KS15
27 SEG14/KS14
SEG13/KS13
26
SEG12/KS12
25
SEG11/KS11
24
SEG10/KS10
23
19 18 17
14 15 16