Read Sharp LC-20B6E (serv.man10) Service Manual online
43
LC-20B6E
3.2. Pin Configuration
3-2. Functions Of Pins
PIN
PIN
FUNCTION
PIN
PIN
FUNCTION
No
NAME
No
NAME
1
LATCH
SERIAL LATCH INPUT
21
FB
Vcc AMP NEGATIVE FEEDBACK INPUT
2
SDIN
SERIAL DATA INPUT
22
Vcom
Vcom OUTPUT PIN
3
CLK
SERIAL CLOCK INPUT
23
VH
GRAY SCALE OUTPUT PIN
4
SDOUT
SERIAL DATA OUTPUT
24
VG
GRAY SCALE OUTPUT PIN
5
GND
GND INPUT
25
VF
GRAY SCALE OUTPUT PIN
6
R/W
AUTO READ ON/OFF INPUT
26
VE
GRAY SCALE OUTPUT PIN
(ON=L, OFF=H)
7
CS
EXTERNAL MEMORY SELECTION OUTPUT
27
VD
GRAY SCALE OUTPUT PIN
8
MEMDO
EXTERNAL MEMORY OUTPUT DATA SIGNAL
28
VC
GRAY SCALE OUTPUT PIN
9
MEMDI
EXTERNAL MEMORY INPUT DATA SIGNAL
29
VB
GRAY SCALE OUTPUT PIN
10
OSC
TUNING CLOCK INPUT/OUTPUT
30
VA
GRAY SCALE OUTPUT PIN
11
DVCC
LOGIC POWER SUPPLY INPUT
31
V9
GRAY SCALE OUTPUT PIN
12
NC
—
32
V8
GRAY SCALE OUTPUT PIN
13
VCC
BUFFER AMP POWER SUPPLY INPUT
33
V7
GRAY SCALE OUTPUT PIN
14
VCC
BUFFER AMP POWER SUPPLY INPUT
34
V6
GRAY SCALE OUTPUT PIN
15
REFIN
DAC REFERENCE INPUT
35
V5
GRAY SCALE OUTPUT PIN
16
VDAC
DAC POWER SUPPLY OUTPUT
36
V4
GRAY SCALE OUTPUT PIN
17
CT
CAPACITY CONNECTING PIN FOR POWER-ON RESET
37
V3
GRAY SCALE OUTPUT PIN
18
DGND
GND INPUT FOR DAC
38
V2
GRAY SCALE OUTPUT PIN
19
GND
GND INPUT
39
V1
GRAY SCALE OUTPUT PIN
20
GND
GND INPUT
40
V0
GRAY SCALE OUTPUT PIN
LATCH
SDIN
CLK
SDOUT
GND
R/W
CS
MEMDI
MEMDO
OSC
DVCC
NC
VCC
VCC
REFIN
VDAC
CT
DGND
GND
GND
V0
V1
V2
V3
V4
V5
V6
V8
V7
V9
VA
VB
VC
VD
VE
VF
VG
VH
Vcom
FB
3.3. Functions of Pins
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