Sharp 28HW-53H, Service Manual

Page: 32 / 44

32
28HW-53E
BLOCK DIAGRAM.
1
I
H
G
F
E
D
C
B
A
2 3 4 5 6 7
A A
B B
C C
D D
E E
1
1
2
2
3
3
4
4
+16V AUDIO -16V AUDIO
+5V DIGITAL
T 701
POR 701
ON /S T- BY
POWER ST-BY CONTROL
+5V
Micro Proc. COMUNICATION
Micro Proc. COMUNICATION
MAIN POW
E
R
M 6701
IR DETECTOR
+ CH - + VOL -
TH 201
A
TUNER
SAW SF 202
IF
IC 2
0
1
TDA
4470
IC 4
0
1
HEF 4053 B
SWITCH
IC 1
0
0
1
ST 10 R 272
L
M
ic
ro Proc. IC
1002
EPROM
IC
2401
SDA 5273 MT T
E
X
T
IC 8
0
1
VIDEO PROC
ESSOR
V
D
P
3130 Y
+16
V
-16
V
+16
V
-16
V
Q
304
Q
303
Q
302
AUDIO PROTECT
O
R
Q 30
5
Q 30
6
MUT
E
21 PINS 21 PINS 21 PINS
AV-FRONT
RGB AV-2 AV-1
MSP 3410 G
IC 3
0
5
Q 90
1
Q 9
0
2
Q 90
3
Q 90
5
Q 9
0
4
Q 90
6
Q 90
8
Q 90
7
Q 9
0
9
R G B
Q 54
1
0
Q 54
1
1
Q 54
1
2
IC 1801
STV5109
C.R.
T
.
H.V.
VERT. DEFLEX. COIL HORIZ. DEFLEX. COIL
R G B
BA 4558 DRIVER
TDA 7480 VERTICAL POWER
Q
502
Q
503
V
E
R
TICAL
F
L
YBACK +13V -13V
H.V.
+145 V
H
HEATER
SVM
IF
FM AUDIO CVBS
PERIPHERICS AUDIO L/R
RGB
V V
V
M3L
SVM
SVM
RGB
RGB
V. OUT
Q
506
E/W E
M
ULATOR
Q 6
0
1
POWE
R
UNIT
Q602 Q
6
03
H. DRIVE
Q
501
E/W DRIV
E
H. OUT
H.OUT
HORIZ. DEFLECTION
+13 V
-13 V
FOCUS
FOCUS
SCREEN
T 601 F.B.T
.
E/W OUT
H.OUT
E/W OUT
E/W OUT
C
R
T
UNIT
28/32HW-53E BLOCK DIAGRAM
SF 201 SF 203
SAW
SAW
+140V
DRIVER
28/32HW-53E 01503SG00
00
BLOCK DIAGRAM 28/32HW-53E
A2
11
Wednesday, December 12, 2001
Title S
iz
e
Document Number
R
e
v
Date:
S
h
e
e
t
of
IC 705
IC 706
IC 707
IC 701
IC 704 IC 703
IC 702
Micro Proc. ST6203
D 701...D 704
S6701
17 12 15 14
PTC
C770
R741
SENSOR
8 7 3 4 5 6 1 2
Q703
Q702
Q701
C 705
ADG COIL
F6701
IC 301
3 2
6
7 4
IC 302
3 2
6
7 4
AUDIO OUT L AUDIO OUT R
IC 304
HEADPHONE CONECTOR
IC 501
IC 502
IC 503
R742
D 604 D 603
D710
I2 C
IC2
I2 C
I2 C
IC2