Sony HCD-DX2D - Page 48

48
HCD-DX2D
IC651 uPD16315GB-3BS
– KEY Board –
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20 21 22
23
24
25
26
27
28
29
30
31
32
33
3435363738
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
segment driver
Grid driver
Multiplexed driver
394041424344
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1/KS1 SEG2/KS2 SEG3/KS3 SEG4/KS4 SEG5/KS5 SEG6/KS6 SEG7/KS7 SEG8/KS8 SEG9/KS9
SEG10/KS10
SEG20/GRID9 SEG21/GRID8 SEG22/GRID7 SEG23/GRID6 SEG24/GRID5 GRID4 GRID3 GRID2 GRID1 VDD VSS
SEG11/KS11
SEG12/KS12
SEG13/KS13
SEG14/KS14
SEG15/KS15
SEG16/KS16
VEE
SEG17/GRID12
SEG18/GRID11
SEG19/GRID10
– AMP Board –
SUB
Bias Circuit
Pre Driver
CH1
Pre Driver
CH2
321
4
6 5
8
7
13
10
11
12
9
14
15
CH2_IN
CH2_NF
ST_BY
CH1_NF
CH1_IN
GND
SUB
+PRE
CH2_OUT2 CH2_OUT1 CH1_OUT2 CH1_OUT1
+VCC
-VCC
-PRE
IC103 STK433-070
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com