Sony HCD-HDX265 Service Manual page 74

HCD-HDX265/HDX266/HDX267W/HDX465/HDX466/HDX665
– FL Board –
IC802 BU2099FV
20 19 18
12 BIT
CONTROL
SHIFT
CIRCUIT
REGISTER
12 BIT
STORAGE
REGISTER
2 3 4
1 5
IC804 PD16315GB-3BS
LED1 1
LED2 2
LED3 3
LED4 4
5 OSC
OSC
DOUT 6
DIN 7
SERIAL
INTERFACE
8
CLK
STB 9
KEY1 10
KEY2 11
74
17 16 15 14 13 12 11
OUTPUT
BUFFER
(OPEN DRAIN)
6 7 8 9 10
44 43
4-BIT LATCH
12-BIT SHIFT
REGISTER
KEY DATA MEMORY
(2 x 16 BITS)
TIMING GENERATOR
KEY SCAN
DISPLAY MEMORY 24-BIT OUTPUT
24 BITS x 12 WORDS LATCH
COMMAND DIMMING
DECODER CIRCUIT
13
12
42 41 38 37 36
40 39
12 4
GRID
DRIVER
8
8
MULTIPLEXED
DATA
SELECTOR DRIVER
8
24 16
SEGMENT
DRIVER
15 16 17 18 19 20
14
35 34
4
33 SEG19/GRID10
32 SEG18/GRID11
31 SEG17/GRID12
8
30 VEE
29 SEG16/KS16
28 SEG15/KS15
27 SEG14/KS14
16
26 SEG13/KS13
25 SEG12/KS12
24 SEG11/KS11
23 SEG10/KS10
21 22