Sharp LC-30HV4E (serv.man9) Service Manual ▷ View online
41
LC-30HV4E
»
Pin mapping
Pin No.
Pin Name
Type
Description
1
VIDEO 1-L1
I
D-pin connection line input
2
VIDEO 1-L2
I
3
VIDEO 1-L3
I
11
VIDEO 2-L1
I
12
VIDEO 2-L2
I
13
VIDEO 2-L3
I
21
VIDEO 3-L1
I
22
VIDEO 3-L2
I
23
VIDEO 3-L3
I
4, 14, 39,45, 52, 58
VCC
––
Analog power supply (9V)
51
AVCC
––
5
VIDEO 2-Y
I
Y signal input
15
VIDEO 3-Y
I
53
TUNER-Y
I
59
VIDEO 1-Y
I
24
DGND
––
6, 8, 16, 18, 33,35,
GND
––
37, 41, 43, 47, 49,
54, 58, 60, 62
7
VIDEO 2-Pb
I
Chrominance input
9
VIDEO 2-Pr
I
17
VIDEO 3-Pb
I
19
VIDEO 3-Pr
I
55
TUNER-Pb
I
57
TUNER-Pr
I
61
VIDEO 1-Pb
I
63
VIDEO 1-Pr
I
10
VIDEO 2-SW
I
D-pin connection check switch line input
20
VIDEO 3-SW
I
32
MONO-SW
I
64
VIDEO 1-SW
I
25
ADDRESS
I
Slave address input
26
SDA
I/O
12C bus data input/output
27
SCL
I
12C bus clock input
28
DVCC
––
Digital power supply (5V)
29
L3 OUT
O
Monitor output line output
30
L2 OUT
O
31
L1 OUT
O
34
Pr OUT 3
O
Image output
36
Pb OUT 3
O
38
Y OUT 3
O
40
Pr OUT 2
O
42
Pb OUT 2
O
44
Y OUT 2
O
46
Pr OUT 1
O
48
Pb OUT 1
O
50
Y OUT 1
O
42
LC-30HV4E
Ë
VHiTB1274AF-1Q (ASSY:IC801, IC802)
VIDEO/CHROMA Processor
»
Block diagram
43
LC-30HV4E
»
Pin mapping
Pin No.
Pin Name
Type
Description
1
CVBS1/Y1-IN
I
CVBS1 or Y1-IN signal input
2
SYNC-IN
I
Synchronization signal input
3
CVBS-OUT
O
CVBS or Y+C signal output
4
VS
O
Output of counted-down vertical synchronization signal
5
COMB Y-IN
I
Input of Y signal outputted from comb filter. Open when not used
6
D-VDD
––
5 VDC power supply to DDS/BUS/V-CD/H-CD block (standard)
7
COMB C-IN
I
Input of C signal outputted from comb filter. Open when not used
8
D-GND
––
GND for DDS/BUS/V-CD/H-CD block
9
HS
O
Output of horizontal synchronization signal under AFC
10
SCP
O
Sand castle pulse output.
Clamp pulse and horizontal blanking pulse are outputted.
Clamp pulse and horizontal blanking pulse are outputted.
11
Yvi-IN
O
Output of synchronous input Y signal selected using video SW
12
SYNC-VCC
––
5VDC power supply to SYNC/HVCO block (standard)
13
SCL
I
12C bus SCL input
14
SDA
I/O
12C bus SDA output
15
YS3
I
Switch for selection between main signal and RGB1 input signal. This input is
(iRGB1-in)
operative only when RGB1-ENB is enabled during bus setting.
16
SYNC-GND
––
GND for SYCN/HVOC block
17
Cr1-IN
I
Y1/Cb/Cr1 signal input
18
Cb1-IN
I
19
Y1-IN
I
20
CLP-FIL
––
Used to connect Y clamp filter
21
Y-OUT
O
Y/Cb/Cr signal output
22
Cb-OUT
O
23
Cr-OUT
O
24
YS1
I
Switch for selection between main signal and input signal
(YVbC2-IN)
25
B1-IN
I
RGB1 signal input. YS3 or 12C bus is used to select signal.
26
G1-IN
I
27
R1-IN
I
28
Y/C-GND
––
GND for Y/C/Text/Video-SW/1HDL block
29
Cr2-IN
I
Y2/Cb2/Cr2 signal input. YS1 is used to select signal.
30
Cb2-IN
I
Open when the pin is not used.
31
Y2-IN
I
32
Y/C-VCC
––
5VDC Power supply to Y/C/Text/Video-SW/1HDI block. (standard)
33
B2-IN
I
RGB2 signal input. YS is used to select signal.
34
G2-IN
I
Open when not used.
35
R2-IN
I
36
YS2/YM
I
Switch for selection between main signal and RGB2 input signal
(RGB2-IN)
37
FIL.
––
Connected to Y/C-VCC pin
38
X'TAL
––
Connect to 16.2 MHz crystal oscillator
39
C3-IN
I
Chroma signal input. Open when not used.
40
APC-FIL
––
Connected to chroma modulation filter
41
CVBS3/Y3-IN
I
CVBS33 or Y3 signal input. Open when not used.
42
ADDRESS
I
Slave address input
43
C2-IN
I
Chroma signal input. Open when not used.
44
CVBS2/Y2-IN
I
CVBS2 or Y2 signal input. Open when not used.
45
COMB SYS
O
Current color system discrimination result output. Pin 46 is also used for this output.
46
Fsc-OUT
O
Sub carrier output
47
AFC-FIL
––
Connected to AFC detection filter
48
C1-IN
I
Chroma signal input. Open when not used.
44
LC-30HV4E
Ë
VHiCXA2101Q-1 (ASSY:IC803)
Baseband image signal processing
»
Block diagram
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