Sony HCD-DX2D Service Manual page 48

HCD-DX2D
QQ
3 7 63 1515 0
– KEY Board –
IC651 uPD16315GB-3BS
LED1
1
LED2 2
LED3 3
LED4
4
OSC
5 OSC
DOUT 6
DIN
7
TE Serial
L 13942296513
interface
CLK
8
STB
9
KEY1
10
KEY2 11
12 13
– AMP Board –
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48
http://www.xiaoyu163.com
44 43 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)
IC103 STK433-070
Pre Driver
CH1
x ao
y
i
1 2 3
http://www.xiaoyu163.com
8
38 37 36 35
Multiplexed driver
Q Q
3 6 7 1 3
segment driver
14 15 16 17 18 19 20
Pre Driver
Bias Circuit
u163
.
SUB
4 5 6 7 10 11 12 13 14 15
8 9
2 9 9 4 2 8
34
SEG19/GRID10
33
32
SEG18/GRID11
SEG17/GRID12
31
30 VEE
SEG16/KS16
29
28 SEG15/KS15
1 5 0 5 8 2 9 9 4
27 SEG14/KS14
SEG13/KS13
26
SEG12/KS12
25
SEG11/KS11
24
SEG10/KS10
23
21 22
CH2
m
co
9 9
2 8 9 9