Sharp 28HW-53 (serv.man8) Service Manual ▷ View online
29
28HW-53H
8
9
10
11
12
13
14
R
Q
P
O
N
M
L
K
J
SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240)
Page28
Page 27
30
28HW-53H
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
SCHEMATIC DIAGRAM OF PFC UNIT (F7314)
DUNTK7314BMW4
+325V
(L6
)
R1715
330K
(TQ)
(1%)
R1714
330K
(TQ)
(1%)
R1713
330K
(TQ)
(1%)
R1712
6K2
(1%)
R1711
10K
C1706
10nF
IC
1
701
L
6
561D
INV
1
COMP
2
MULT
3
CS
4
VCC
8
GD
7
GND
6
ZCD
5
C1705
1uF
R1709
10
Q1701
T
X
0231BM
C1703
22uF
C1704
220pF
2KV
R1708
68K
R1706
560K
(TQ)
R1705
560K
(TQ)
R1704
560K
(TQ)
R1703
560K
(TQ)
R1702
560K
(TQ)
R1701
560K
(TQ)
C1701
22nF
(630V)
FZ0186
D1701
DX0551
D1702
C18
E
X
0
5
58BM
R1707
100
C1702
10nF
R1710
.47
(1W)
(PWA)
CM0672F
C
FB1701
LN0080CE
T
1
701
Z0587BM
1
2
3
4
C1707
22nF
(630V)
FZ0186
D1703
BYV28-600
C1708
100pF
500V
SHARP
ELECTRONICA
E
S
P
A
N
A S.A.
NOMBRE
CODIGO
ESCALA
MODELO
FECHA
REVISIONES
N
2
3
4
5
6
FECHA
A-3
PW
B
F7
B
M
N
2
3
-0
7
-2001
14
3
28HW5
3
H
REALIZADO
VERIFICADO
APROBAD
O
Q
1
3
P
C
F
Module
Digitally signed by Adolfo Fernandez
cn=Adolfo Fernandez, ou=CAD GLOBAL NETWORK, o=SHARP, c=ES
Date: 2001.07.26 11:15:17 Z
Reason: This document is ready for approval
Digitally signed
by Castillo, Fco.
DN: cn=Castillo,
Fco.,
o=Engineering
Dept.,
ou=SEES, c=ES
Date:
2001.07.26
12:14:16 +01'00'
Reason: I have
reviewed this
document
Digitally signed
by Castillo, Fco.
DN:
cn=Castillo,
Fco.,
o=Engineering
Dept.,
ou=SEES, c=ES
Date:
2001.07.26
12:14:42 +01'00'
Reason: I have
reviewed this
document
31
28HW-53H
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
SCHEMATIC DIAGRAM OF POWER SWITCH UNIT (F7342)
1
2
31
21
2
OUT R
OUT L
GND
GND
CHROMA IN
GND
LUMA IN
M6701
1
1
22
3
3
1
2
3
RC
+5V
GND
GND
OUT R
OUT L
3
2
1
DUNTK7342BMV1
L6318 3.3uH
(DF)
J6
401
QJAKZ0015
CE
R6449 75
(1/4W)
(SS) GN0341
(CC) GN0241
(FV) GN0241
(H) GN0304
R6701 120K
1/2W
R6702 120K
1/2W
S6701 P0613BM
F6701 FS-C3226
LP6701 P0001
3
2
CU020
3BM
1
(SW1) GN0341
(SW2
)
GN0341
S6702
KZ
0079
S6703
KZ
0079
S6704
KZ
0079
S6705
KZ
0079
(RC) GN0341
CN4
QJAKJ0047CEZ
Z
1
5
4
3
2
6
7
(HD) GN0341
L6317 3.3uH
(DF)
L6701 F0108BM
C6746 330nF
FZ0192
(275V)
C6701
FZ0160BM (275V)
470nF
C6336 10nF
R6316 390
C6337 10nF
R6317
390
C6428 1nF
C6429 1nF
(A) GN0207
SHARP
ELECTRONICA
E
S
P
A
N
A
S.A.
NOMBRE
C
O
D
IG
O
ESCALA
MODELO
FECHA
REVISIONES
N
2
3
4
5
6
FECHA
A-3
PW
B
F
7
B
M
N
2
0
-0
7
-2001
42
1A
S
W
ITCH A / V
28HW5
3
H
REALIZADO
VERIFICADO
APROBAD
O
Q
1
3
1
2
3
4
5
6
Digitally signed by Adolfo Fernandez
cn=Adolfo Fernandez, ou=CAD GLOBAL NETWORK, o=SHARP, c=ES
Date: 2001.07.23 17:35:10 Z
Reason: This document is ready for approval
Digitally signed
by Castillo, Fco.
DN: cn=Castillo,
Fco.,
o=Engineering
Dept.,
ou=SEES, c=ES
Date:
2001.07.24
14:10:50 +01'00'
Reason: I have
reviewed this
document
Digitally signed
by Castillo, Fco.
DN: cn=Castillo,
Fco.,
o=Engineering
Dept., ou=SEES,
c=ES
Date:
2001.07.24
14:11:15 +01'00'
Reason: I have
reviewed this
document
32
28HW-53H
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
+140V
Q 713
Q 704
Q 706
Q 705
Q 707
+5V DIGITAL
T 701
POR 701
ON/ST-BY
POWER ST-BY
CONTROL
+5V
Micro Proc. COMUNICA
TION
Micro Proc. COMUNICA
TION
MAIN POWER
M 6701
IR
DETECTOR
+ CH - + VOL -
TH 201
TUNER
SAW
SF 202
IF
IC 201
TDA 4472
IC 401
HEF 4053
SWITCH
IC 1001
S 10 R 272 L
Micro Proc.
IC 1002
27C4000
EPROM
IC 2401
SDA 5273S
MT TEXT
IC 801
VIDEO PROCESSOR
VDP 3120 C
+16V
-16V
+16V
-16V
Q 304
Q 303
Q 302
AUDIO
PROTECTOR
Q 305
Q 306
MUTE
21 PINS
21 PINS
21 PINS
AV-FRONT
S-VIDEO
RGB
AV-2
AV-1
MSP 3410 G
IC 305
Q 901
Q 902
Q 903
Q 905
Q 904
Q 906
Q 908
Q 907
Q 909
R
G
B
Q 5410
Q 5411
Q 5412
IC 1801
TEA5101A
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
VERTICAL
FLYBACK
+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
EMULATOR
Q 601
POWER UNIT
Q603
Q605
Q604
Q602
H. DRIVE
Q 501
E/W
DRIVE
H. OUT
H.OUT
HORIZ. DEFLECTION
+13 V
-13 V
FOCUS
FOCUS
SCREEN
F.B.T
.
E/W
OUT
H.OUT
E/W
OUT
E/W
OUT
CRT UNIT
28/32HW-53H BLOCK DIAGRAM
28/32HW-53H 01294SG00
0
0
BLOCK DIAGRAM 28/32HW-53H
A2
11
Thursday, July 19, 2001
Title
S
iz
e
Document Number
R
e
v
Date:
S
h
e
e
t
of
IC 705
IC 706
IC 701
IC 704
IC 703
IC 702
Micro Proc.
-+
D 701...D 704
S6701
17
12
15
14
PTC
C770
R741
SENSOR
8
7
3
4
5
6
1
2
Q703 DRIVER
Q702
Q701
C?
CESH
ADG COIL
D 1101
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 605
I2
C
IC2
I2
C
I2
C
IC2
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