LC-28HM2E (serv.man3). Chassis layout, Description of majoy IC functions, Block diagram, Overall wiring diagram, Description of schematic diagram, Waveforms - page 49-63 - Sharp TV Service Manual (repair manual). Page 7

Read Sharp LC-28HM2E (serv.man3) Service Manual online

55
LC-28HM2
AN-28SP2
6
5
4
3
2
1
A
B 
C
D
E
F
G
H
BLOCK DIAGRAM (AVC SYSTEM)
5V
2.5V
3.3V
12V
16V
5V
Video 1 
input
Video/A
udio
Video/A
udio
Video/A
udio
Video
A
udio
Video
A
udio
Video
A
udio
Video
A
udio
Video
Video/A
udio
A
udio
Video 2 
input
Headphone 
output
IC301 
sound 
processor
 Video 
3 
input/
output
Video 4 
component 
input
PC 
input
D 
ter
minal 1 
input
D 
ter
minal 2 
input
UV RF 
input
BS RF 
input
Detection
AFC input
Bit stream
TU3201
UV tuner
TU9001
BS tuner
IC410 
audio 
s
witch
IC3901 
m
ultiple 
sound
 IC7201
A
uto-wide
IC401 
input 
s
witch
IC1901
Sync 
separ
ation
IC7001
3D Y/C
IC801
Video 
encoder
IC415-417
Video 
s
witch
IC403-405
Video 
s
witch
 IC1
Main 
microcomputer
IC35
RAM
IC38
RAM
IC39
RAM
IC25
I/P con
ve
rsion
Fr
ame 
con
ve
rsion
IC20
gmZ3
IC4
AD 
con
v
e
rter
SC1406
System 
connector
IC50
RAM
IC51
RAM
IC48
OSD
IC29
Timing 
compression
IC5
Encoder
SMPO
W
100V
100V
SW line 
filter
IN
OUT
A
C/DC

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