Sharp LC-20B6E (serv.man10) Service Manual ▷ View online
36
LC-20B6E
Pin Type
Block
Number
of Pins
Pin Name
I/O Type
Description
DA VDD2
VDD
Power supply for 8-bit D/A block
DA out2
O
A
6.75 MHz to 27 MHz
DA GND2
GND
Ground for 8-bit D/A block
DABIAS21
A
Bias voltage for 8-bit D/A
DAVREF2
A
Reference voltage for 8-bit D/A block
DA DVDD2
VDD
Digital power supply for 8-bit D/A block
8bit D/A
7
DA DVSS2
GND
Digital ground for 8-bit D/A block
4TPLL in
I
A
6.75 MHz input
AVDDPLL
VDD
PLL (F/E) power supply
FIL
A
Filter
pin
PLL (F/E £ 4
AGNDPLL
GND
PLL (F/E) ground
AVDDPLL
VDD
PLL (B/E) power supply
FIL
A
Filter
pin
PLL (B/E)
3
AGNDPLL
GND
P PLL (B/E) ground
Ys in
I
D
Scart/TeleTEXT Ys input
TeleTEXT 2
I in
I
D
TeleTEXT I input
YCLMPP1
O
Tri
Clamp pulse output for CVBS1 clamp input
YCLMPP2
O
Tri
Clamp pulse output for CVBS2 clamp input
Sync out
O
D
Sync output
Csync in
I
D
Composite sync input
F/E
F/E 5
VBIREADY O
D
VBIREADY
output
PCR in [7]
I
D
PCR in [6]
I
D
PCR in [5]
I
D
PCR in [4]
I
D
PCR in [3]
I
D
PCR in [2]
I
D
PCR in [1]
I
D
PCR in [0]
I
D
PC-R signal input
PCG in [7]
I
D
PCG in [6]
I
D
PCG in [5]
I
D
PCG in [4]
I
D
PCG in [3]
I
D
PCG in [2]
I
D
PCG in [1]
I
D
PCG in [0]
I
D
PC-G signal input
PCB in [7]
I
D
PCB in [6]
I
D
PCB in [5]
I
D
PCB in [4]
I
D
Digital in
PC in
27
PCB in [3]
I
D
PC-B signal input
2.2. Pin Functions (Continued)
37
LC-20B6E
Pin Type
Block
Number
of Pins
Pin Name
I/O Type
Description
PCB in [2]
I
D
PCB in [1]
I
D
PCB in [0]
I
D
PC-B signal input
PCH in
I
D
PC-HD signal input
PCV in
I
D
PC-VD signal input
PC in
27
PCCK in
I
D
PC clock input
Dig Y in [7]
I
D
Dig Y in [6]
I
D
Dig Y in [5]
I
D
Dig Y in [4]
I
D
Dig Y in [3]
I
D
Dig Y in [2]
I
D
Dig Y in [1]
I
D
Dig Y in [0]
I
D
Dig C in [7]
I
D
Dig C in [6]
I
D
Dig C in [5]
I
D
Dig C in [4]
I
D
Dig C in [3]
I
D
Dig C in [2]
I
D
Dig C in [1]
I
D
Dig C in [0]
I
D
Dig CLK in
I
D
Dig HD in
I
D
Dig VD in
I
D
Digital in
R656 in
YCbCr 8bit in
YCbCr 16bit in
YCbCr 8bit in
YCbCr 16bit in
20
Dig Field in
I
D
ITU-R656 input
Digital 8-bit YCbCr input
Digital 16-bit YCbCr input
Digital 8-bit YCbCr input
Digital 16-bit YCbCr input
Dig out [7]
O
D
Dig out [6]
O
D
Dig out [5]
O
D
Dig out [4]
O
D
Dig out [3]
O
D
Dig out [2]
O
D
Dig out [1]
O
D
Dig out [0]
O
D
Dig CLK out
O
D
Dig HD out
O
D
Dig VD out
O
D
Digital out
R656 out
YCbCr 8bit out
YCbCr 8bit out
12
Dig Field out
O
D
ITU-R656 output
Digital 8-bit YCbCr output
Digital 8-bit YCbCr output
OSDRA (d1a) in
I
D
OSD-R (data-1a) signal input
OSDGA (d2a) in
I
D
OSD-G (data-2a) signal input
OSDBA (d3a) in
I
D
OSD-B (data-3a) signal input
OSD OSD
I/F
14
OSDIA (d4a) in
I
D
OSD-I (data-4a) signal input
2.2. Pin Functions (Continued)
38
LC-20B6E
Pin Type
Block
Number
of Pins
Pin Name
I/O Type
Description
OSDYsA in
I
D
OSD-Ys signal input
OSDRB (d1b) in
I
D
OSD-R (data-1b) signal input
OSDGB (d2b) in
I
D
OSD-G (data-2b) signal input
OSDBB (d3b) in
I
D
OSD-B (data-3b) signal input
OSDIB (d4b) in
I
D
OSD-I (data-4b) signal input
OSDYsB in
I
D
OSD-Ys signal input
OSD VD out
O
D
VD output for OSD microcomputer
OSD HD out
O
D
HD output for OSD microcomputer
OSD CLK
I/O
D
Clock input/output (positive polarity) for OSD
microcomputer
microcomputer
OSD OSD
I/F
14
OSD n-CLK
I/O
D
Clock input/output (negative polarity) for OSD
microcomputer
microcomputer
DTMB
I
D
DRAM test mode input
DTCLK
I
D
DRAM test clock input
DRAM1 VDD1
VDD
1.5-V VDD for 4M DRAM
DRAM1 GND1
GND
1.5-V ground for 4M DRAM
DRAM1 VDD2
VDD
1.5-V VDD for 4M DRAM
DRAM1 GND2
GND
1.5-V ground for 4M DRAM
DRAM1 VDD3
VDD
2.5-V VDD for 4M DRAM
DRAM1 GND3
GND
2.5-V ground for 4M DRAM
DRAM2 VDD1
VDD
1.5-V VDD for 20M DRAM
DRAM2 GND1
GND
1.5-V ground for 20M DRAM
DRAM2 VDD2
VDD
1.5-V VDD for 20M DRAM
DRAM2 GND2
GND
1.5-V ground for 20M DRAM
DRAM2 VDD3
VDD
1.5-V VDD for 20M DRAM
DRAM2 GND3
GND
1.5-V ground for 20M DRAM
DRAM2 VDD4
VDD
1.5-V VDD for 20M DRAM
DRAM2 GND4
GND
1.5-V ground for 20M DRAM
DRAM2 VDD5
VDD
1.5-V VDD for 20M DRAM
DRAM2 GND5
GND
1.5-V ground for 20M DRAM
DRAM2 VDD6
VDD
2.5-V VDD for 20M DRAM
DRAM DRAM
20
DRAM2 GND6
GND
2.5-V ground for 20M DRAM
RED1 [7]
O
D
RED1 [6]
O
D
RED1 [5]
O
D
RED1 [4]
O
D
RED1 [3]
O
D
RED1 [2]
O
D
RED1 [1]
O
D
B/E LCD
I/F
53
RED1 [0]
O
D
R signal output 1 (8-bit)
2.2. Pin Functions (Continued)
39
LC-20B6E
Pin Type
Block
Number
of Pins
Pin Name
I/O Type
Description
GREEN1 [7]
O
D
GREEN1 [6]
O
D
GREEN1 [5]
O
D
GREEN1 [4]
O
D
GREEN1 [3]
O
D
GREEN1 [2]
O
D
GREEN1 [1]
O
D
GREEN1 [0]
O
D
G signal output 1 (8-bit)
BLUE1 [7]
O
D
BLUE1 [6]
O
D
BLUE1 [5]
O
D
BLUE1 [4]
O
D
BLUE1 [3]
O
D
BLUE1 [2]
O
D
BLUE1 [1]
O
D
BLUE1 [0]
O
D
B signal output 1 (8-bit)
RED2 [7]
O
D
RED2 [6]
O
D
RED2 [5]
O
D
RED2 [4]
O
D
RED2 [3]
O
D
RED2 [2]
O
D
RED2 [1]
O
D
RED2 [0]
O
D
R signal output 2 (8-bit)
GREEN2 [7]
O
D
GREEN2 [6]
O
D
GREEN2 [5]
O
D
GREEN2 [4]
O
D
GREEN2 [3]
O
D
GREEN2 [2]
O
D
GREEN2 [1]
O
D
GREEN2 [0]
O
D
G signal output 2 (8-bit)
BLUE2 [7]
O
D
BLUE2 [6]
O
D
BLUE2 [5]
O
D
BLUE2 [4]
O
D
BLUE2 [3]
O
D
BLUE2 [2]
O
D
BLUE2 [1]
O
D
BLUE2 [0]
O
D
B signal output 2 (8-bit)
LCD HD
O
D
HD signal output for display timing
B/E LCD
I/F
53
LCD VD
O
D
VD signal output for display timing
2.2. Pin Functions (Continued)
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