Read Sharp SD-AT50H (serv.man11) Service Manual online
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SD-AT50H
Figure 13 BLOCK DIAGRAM (3/9)
LED7
LED6
D5
LED8
ES
CN502A
BACK_LIGHT
STRLED
KEY_1
LCDSDA
LCDSCL
LCDCS
LCDRESET
DTSLED
STDLED
POWERKEY
DDLED
DPLLED
VIRLED
TIMERLED
LED9V
Q5
Q6
Q7
+5V(D)
+3.7V(UN-SWD)
GND(U-COM)
H.P SW
L-CH
GND(A)
R-CH
RXIN
+5V(D)
+3.3V(SWD)
GND(D)
N
R-CH
L-CH
H.P SW
25
24
23
22
21
20
19
18
17
15
13
12
11
10
9
8
7
6
5
4
3
2
1
16
14
SW2~SW5
LED DRIVER
LED DRIVER
D DRIVER
SW1
TO DSP SECTION
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