DOWNLOAD Sharp LC-30HV4E (serv.man2) Service Manual ↓ Size: 16.95 MB | Pages: 127 in PDF or view online for FREE

Model
LC-30HV4E (serv.man2)
Pages
127
Size
16.95 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-30hv4e-sm2.pdf
Date

Sharp LC-30HV4E (serv.man2) Service Manual ▷ View online

38
LC-30HV4E
Ë
VHiCXA2069Q-1 (ASSY:FIC1301)
S2-compatible 7-input, 3-output AV switch
»
Block diagram
39
LC-30HV4E
»
Pin mapping
Pin No.
Pin Name
Type
Description
63
TV
I
Video signal input
1
V1
I
Composite video signal input
8
V2
I
15
V3
I
22
V4
I
30
V4
I
60
V4
I
3
Y1
I
Y/C separation signal input, used for luminance signal input
10
Y2
I
YIN1: Input for signal created by Y/C separation of VOUT1 output
17
Y3
I
24
Y4
I
49
YIN1
I
5
C1
I
Y/C separation signal input, used for chrominance signal input
12
C2
I
CIN1: Input for signal created by Y/C separation of VOUT1 output
19
C3
I
26
C4
I
51
CIN1
I
62, 2
LTV, LV1
I
Audio signal input
9, 16
LV2, LV3
I
23, 29
LV4, LV5
I
59, 64
LV6, RTV
I
4, 11
RV1, RV2
I
18, 25
RV3, RV4
I
31, 61
RV5, RV6
I
53
VOUT1
O
Video signal output, used for composite vide signal output
41
VOUT3
O
44
V/YOUT2
O
Video signal output, controlled via 12C bus and used for composite video signal output
56
YOUT1
O
Power or luminance signal output is selected.
39
YOUT3
O
Video signal output, used for luminance signal output
58
COUT1
O
Video signal output, used for chrominance signal output
47
COUT2
O
37
COUT3
O
52
LOUT1
O
Audis signal output
43
LOUT2
O
38
LOUT3
O
54
ROUT1
O
45
ROUT2
O
40
ROUT3
O
6
S2-1
I
Used for detection of S2-compatible DC that is superimposed to C signal.
13
S2-2
I
4:3 image signal is selected when voltage ? 1.3V, 4:3 letterbox signal when 1.3V
20
S2-3
I
< voltage ? 2.5V, and 16:9 squeeze signal when voltage > 2.5V. 4:3 image signal is
27
S2-4
I
 selected when the pins are open because they are pulled down to GND via 100K?.
7
S-1
I
Used for selection between composite video signal and S signal.
14
S-2
I
Detection result is written to the status register. S signal is selected when voltage ?
21
S-3
I
3.5V, and composite video signal when voltage > 3.5V. Composite video signal is
28
S-4
I
selected when the pins are open because they are pulled down to 5V via 100K?.
32
ADR
I
Used for selection of slave address for 12C bus.
90H is selected when voltage ? 1.5V, and 92H when ? 2.5V.
90H is selected when the pin are open.
33
SCL
I
12C bus signal input
34
SDA
I
12C bus signal input
36
DC OUT
O
Used for output of S2-compatible DC that is superimposed to COUT3.
DC superimposition is done by connecting to COUT3 via capacitor. The pin is
controlled via 12C bus.
Connection of 4.7k? external resistor provides output impedance of 10?3K? that
conforms to S2.
55
TRAP1
I
Connected to trap circuit for sub carrier.
46
TRAP2
I
48
MUTE
I
Mute for audio signal output.
Mute is on when voltage ? 1.3V and off when voltage ? 2.5V.
Mute is off when the pin is open.
50
BIAS
I
Internal reference bias input.
Connected to GND via capacitor.
40
LC-30HV4E
Ë
VHiMM1519XQ-1 (IC1401)
Component Input Video Switch
»
Block diagram
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
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