DOWNLOAD Sharp LC-20B6E (serv.man10) Service Manual ↓ Size: 418.91 KB | Pages: 26 in PDF or view online for FREE

Model
LC-20B6E (serv.man10)
Pages
26
Size
418.91 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Major ICs Information
File
lc-20b6e-sm10.pdf
Date
PREV: Sharp LC-20B6E (serv.man9) Service Manual

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56
LC-20B6E
Number
Name
I/O
Description
1
G
INA
/U
INA
I
Analog G
INA
 or U
INA
 signal input. Sync signal is input on SYNCIN pin.
2
GSG1
I
G
OUT
/U
OUT
 output buffer gain set input
3
G
INB
/U
INB
I
Analog G
INB
 or U
INB
 signal input. Sync signal is input on SYNCIN pin.
4
NC
–
No connection (leave open or connect to ground)
5
B
INA
/V
INA
I
Analog B
INA
 or V
INA
 signal input. Sync signal is input on SYNCIN pin.
6
GSB1
I
B
OUT
/V
OUT
 output buffer gain set input
7
B
INB
/V
INB
I
Analog B
INB
 or V
INB
 signal input. Sync signal is input on SYNCIN pin.
8
NC
–
No connection (leave open or connect to ground)
9
DISABLE
I
Power save function. Built-in pull-down resistor.
L: Enable
H: Disable (Output pins: R
OUT
/Y
OUT
, G
OUT
/U
OUT
, and B
OUT
/V
OUT
 are high impedance.)
10
GND3
−
Analog ground
11
B
OUT
/V
OUT
O
B/V signal output
12
VCC3
−
Analog 5V supply
13
GND2
−
Analog ground
14
G
OUT
/U
OUT
O
G/U signal output
15
VCC2
−
Analog 5V supply
16
GND1
−
Analog ground
17
R
OUT
/Y
OUT
O
R/Y signal output
18
VCC1
−
Analog 5V supply
19
GND4
−
Analog ground
20
RFC
−
LPF (lowpass filter) cutoff frequency setting resistor connection
21
VFC
I
LPF (lowpass filter) cutoff frequency setting voltage input
22
MUXSEL
I
Input select signal. Built-in pull-down resistor.
L: 
×
INA
 pin select
H: 
×
INB
 pin select
23
SYNCIN
I
Filter channel external H-Sync signal input. Active “H”. Built-in pull-down resistor.
24
VCC4
−
Analog 5V supply
25
R
INA
/Y
INA
I
Analog R
INA
 or Y
INA
 signal input. Sync signal is input on SYNCIN pin.
26
GSR1
I
R
OUT
/Y
OUT
 output buffer gain set input
27
R
INB
/Y
INB
I
Analog R
INB
 or Y
INB
 signal input. Sync signal is input on SYNCIN pin.
28
NC
–
No connection (leave open or connect to ground)
8.3. Pin Description
57
LC-20B6E
VCC4
R
INA
/Y
INA
GSR1
R
INB
/Y
INB
VFC
GND4
VCC1
R
OUT
/Y
OUT
GND1
VCC2
GND2
VCC3
GND3
DISABLE
MUX
DC
Restore
LPF
Buffer
G
INA
/U
INA
GSG1
G
INB
/U
INB
G
OUT
/U
OUT
MUX
DC
Restore
LPF
Buffer
B
INA
/V
INA
GSB1
B
INB
/V
INB
B
OUT
/V
OUT
MUX
DC
Restore
LPF
Buffer
MUXSEL
SYNCIN
IFC
Control
RFC
8.2. Block Diagram
57
LC-20B6E
VCC4
R
INA
/Y
INA
GSR1
R
INB
/Y
INB
VFC
GND4
VCC1
R
OUT
/Y
OUT
GND1
VCC2
GND2
VCC3
GND3
DISABLE
MUX
DC
Restore
LPF
Buffer
G
INA
/U
INA
GSG1
G
INB
/U
INB
G
OUT
/U
OUT
MUX
DC
Restore
LPF
Buffer
B
INA
/V
INA
GSB1
B
INB
/V
INB
B
OUT
/V
OUT
MUX
DC
Restore
LPF
Buffer
MUXSEL
SYNCIN
IFC
Control
RFC
8.2. Block Diagram
57
LC-20B6E
VCC4
R
INA
/Y
INA
GSR1
R
INB
/Y
INB
VFC
GND4
VCC1
R
OUT
/Y
OUT
GND1
VCC2
GND2
VCC3
GND3
DISABLE
MUX
DC
Restore
LPF
Buffer
G
INA
/U
INA
GSG1
G
INB
/U
INB
G
OUT
/U
OUT
MUX
DC
Restore
LPF
Buffer
B
INA
/V
INA
GSB1
B
INB
/V
INB
B
OUT
/V
OUT
MUX
DC
Restore
LPF
Buffer
MUXSEL
SYNCIN
IFC
Control
RFC
8.2. Block Diagram
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