DOWNLOAD Sharp 37GT-27H (serv.man16) Service Manual ↓ Size: 2.41 MB | Pages: 44 in PDF or view online for FREE

Model
37GT-27H (serv.man16)
Pages
44
Size
2.41 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR
File
37gt-27h-sm16.pdf
Date
PREV: Sharp 37GT-27H (serv.man15) Service Manual

Sharp 37GT-27H (serv.man16) Service Manual ▷ View online

29
37GT-27H
R
OUT
RI
N
L
OUT
LI
N
SS
FS
V
OUT
VI
N
IFOUT
IF OUT
5V
BU
VT
AGC
R
G
B
3
4
5
TU201
RTUNH0138BMZZ
(SERVICE)
SCL
SDA
GND
J91
J78
J92
JF17
JF18
SCART
TUNER
SQUAD-TXT
SHARP
ELECTRONICA ESPANA   S.A.
NOMBRE
CODIGO
ESCALA
MODELO
FECHA
REVISIONES
N
2
3
4
5
6
FECHA
K I T P 7
B M N
2 3
3
REALIZAD O
VERIFICADO
APROBADO
Q
1
3
A-2
RC
+8V
+8V
+5VA
+8V
37GT27H
+5VA
+5VA
+5VA
+8V
J79
11
18-03-2002
Hasta INFO 47
21
18-03-2002
Hasta INFO 48
22
16-04-2002
Hasta INFO 52
24
24-03-2002
Hasta INFO 49
23
12-03-2002
Hasta INFO 45
19
15-03-2002
Hasta INFO 46
20
17-04-2002
5
AUDIO
G
B
BU
VT
B
G
FB
FB
SS
SDA
SCL
R
AG
C
BL
BH
.
.
.
.
1
2
3
4
5
6
10
11
17
19
13
15
9
11
5
7
1
3
2
4
6
8
10
12
14
16
C202
1nF
L801
3.3uH
(DF)
C805
1uF
C807
100nF
C808
100nF
C901
100nF
X801
B0243
4.43MHz
C211
220nF
C214
10nF
R201
220
R204
150
R212
3K3
R804
1K
R813
27K
R815
22K
R817
2K2
R818
15K
R601
2K2
R602
470
R821
8K2
C301
3.3uF
C820
1uF
D801
DX0045B M
D802
DX055 1
R211
47K
1
D506
DX055 1
R403
220
R408
8K2
R410
100K
R411
6K8
R412
6K8
R413
220
(TQ)
R414
220
(TQ)
FB401
LN0037
C401
1uF
C404
330pF
C405
330pF
C408
47uF
(16V)
D401
C7V5
SC401
CZ2109BM
21
R529
150
(1/2W)
D404
C7V5
D405
C7V5
D406
C7V5
D407
C7V5
C205
1uF
R416
47
R407
75
(TQ)
R401
75
(TQ)
R221
(0)
R202
1K
R814
1M
R402
68
(1/2W)
R420
0
R418
0
C409
82pF
D410
EX549 BM
7V5
R
1030
100
R1031
100
R220
100
75
R825
75
R826
75
R819
100
R820
100
R404
75
(TQ)
J47
LN0037
FB801
LN0037
C201
22pF
L201
390mH
IC801
STV2236
IX1792BM
IFPLL
17
GND IF
18
AM/FMOUT
19
VCC
20
CVBS
21
AUDIN
22
IF1
23
IF2
24
VCC
25
CVBSIN1
26
GND
27
CVBSIN2
28
BS
29
BEXT
30
GEXT
31
AG
C
16
SAW
15
PIFIN
14
PIFIN
13
AG
C
12
VIF
11
AG
C
10
SIFIN
9
SIFIN
8
FMC
A
P
7
A
UDIO
6
GN
D
5
VC
C
4
SD
A
3
SC
L
2
SL
PF
1
SSC
64
HOUT
63
VERT
62
BCL
61
CVBOUT2
60
VCC
59
CVBSOUT1
58
GND
57
VAMP
56
CLPF
55
XTAL
54
XTAL
53
BTUN
52
HALFCTR
51
FBOSD
50
C207
10uF
(16V)
C223
8.2pF
(500V)
R816
2K7
R511
1.8
(1/2W)
R405
75
(TQ)
C822
100uF
(16V)
D803
C5V1
EX054 5BM
C216
470nF
R1032
100
R1029
10K
C1005
100nF
R223
39K
R406
75
R224
82K
D411
EX054 9BM
7V5
R409
3K3
SF201
FILC0262BM
J1952 M
5
4
3
1
2
R415
100K
C813
4n7
C209
100uF
(6.3V)
C210
100nF
C801
470uF
(10V)
C817
1000uF
(6.3V)
C804
100nF
C812
1uF
C803
470uF
(10V)
C802
100nF
C818
100nF
C203
330nF
(25V)
C815
2.2uF
C816
4n7
C814
1uF
C206
22nF
C222
100nF
R203
1K
R515
100
C215
47uF
(10V)
C208
1uF
C221
100pF
D403
C5V6
L202
12uH
(DF)
CF301
C0023CE
R219
2K2
18
20
R417
220
C410
680pF
C406
22uF
C212
10nF
C213
10nF
D808
EX054 5BM
D863
EX054 5BM
Q204
BC847B
TX0232BM
Q401
BC847B
TX0232BM
05
47B
232BM
FB405
LN0037
L802
3.3uH
XF3R3
D610
C6V8
EX054 8BM
Digitally signed by Adolfo Fernandez
cn=Adolfo Fernandez, ou=CAD GLOBAL NETWORK, o=SHARP, c=ES
Date: 2002.04.17 11:03:03 +01'00'
Reason: This document is ready for approval
Miguel Alcoba
2002.04.17 11:04:00 +01'00'
I am approving this document
Miguel Alcoba
2002.04.17 11:04:36 +01'00'
I am approving this document
8
91
0
11
1
2
1
3
1
4
R
Q
P
O
N
M
L
K
J
  SCHEMA
TIC DIAGRAM ( 00 V
ersion)
Page 28
Page 27
30
37GT-27H
1
2
3
1
4
2
3
8
T700
3
5
6
9
2
5
6
8
3
10
7
11
H.V
FOCUS
G2
10
9
14
13
12
11
15
16
CH+
CH-
VOL+
VOL-
4
5
6
3
2
1
I C 5 0 1
+150V
G 2
FOCUS
PWB-B
DUNTK7284BMN2
CRT
H.V.
GND
R
G
B
HEATER
4
3
2
1
(H)
150V
T601
I C 7 0 1
+10V
110V
20V
-10V
7V
3.3V
Q705
2.5V
Q707
+ 1 0 V
- 1 0 V
V e r t i c a l
D r i v e r
Q 5 0 5 ,   Q 5 0 6
O U T P U T
A M P
Q 5 0 2 ,   Q 5 0 1
Feed  back
150V
6.3V
- 2 5 V
Q601
Q 6 0 2
Q 6 0 4
Q 6 0 3
1 0 5 V
Q883
Q885
Q887
Q870
Q871
Q872
Q 5 0 3 ,   Q 5 0 4 ,   Q 5 0 5
Fly  Back
Pulse
4
5V
Q703
G 2
F o c u s
8V
Q702
5 0   /   6 0 H z
Q 5 0 9
7
8
.
.
(G)
A D G   C O I L
S1001
S1002
S1003
S1004
L701
PR701
S 7 0 1
F701
T3.15A
(A)
P701
N0304CE
IC1002
.
1
.
2
.
3
.
4
.
5
.
6
.
7
.
8
SC881
VD842CE
.
7
.
9
.
3
.
5
.
4
.
6
.
8
P881A
(L2)
1
(K)
.
5
.
4
.
3
.
2
.
1
P601
(F)
.
1
.
2
.
3
.
4
.
5
(H)
.
1
.
2
.
3
.
4
V-IN
V-OUT
.
18
.
19
.
20
.
21
D605
D604
AC 220-240V
50HZ
D608
Q701
  
BLOCK DIAGRAM
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
Page 31
31
37GT-27H
3
2
1
RMC0001
R M C U 0 222CE
OUT
5V
B
G
R
F e e d     b a c k
Q305
Mute
A M P
Audio
5V
7 V
D 1 0 0 5
AUDIO
  I N
AUDIO
 OUT
Q401
Q1001
.
J 3 0 1
1
5
4
3
2
6
7
P 3 0 1
.
1
.
2
S P 3 0 1
.
1
.
2
FB
R
G
SLOW
B
L-IN
L-OUT
R-IN
R-OUT
SC401
Z2107BM
.
1
.
2
.
3
.
4
.
5
.
6
.
7
.
8
.
9
.
10
.
11
.
12
.
13
.
14
.
15
.
16
.
17
.
18
(K)
.
5
.
4
.
3
.
2
.
1
IF O2
IF O1
+5V
VT
AGC
TU201
.
1
.
2
.
3
.
4
.
5
.
6
.
11
.
10
IC1001
S D A 5 5 5 2
VS
17
VL
18
BG/L
19
R/C
20
V
21
VU
22
L/L'
23
N.C.
24
N.C.
25
N.C.
26
VN
27
VSS
28
VDD 3.3
29
N.C.
30
N.C.
31
/RST
32
HS/SSC
16
N.C.
15
N.C.
14
N.C.
13
N.C.
12
N.C.
11
VSSA
10
VDDA 2.5
9
CVBS
8
N.C.
7
N.C.
6
VDD 3.3
5
VSS
4
VDD 2.5
3
OUT FRONT
2
N.C.
1
AGC
64
N.C.
63
PROT
62
SS
61
SBY
60
POWER
59
SMUTE
58
50/60 Hz
57
N.C.
56
VT
55
K
54
SCL
53
SDA
52
K
51
N.C.
50
K
49
N.C.
33
XTAL2
34
XTAL1
35
VSSA
36
VDDA 2.5
37
R
38
G
39
B
40
N.C.
41
BLANK/COR
42
N.C.
43
VDD 2.5
44
VSS
45
VDD 3.3
46
K
47
N.C.
48
X801
4,43MHz
X1001
6 MHz
IC801
S T V 2 2 3X
IFPLL
17
GND IF
18
AM/FMOUT
19
VCC
20
CVBS
21
AUDIN
22
IF1
23
IF2
24
VCC
25
CVBSIN1
26
GND
27
CVBSIN2
28
BS
29
BEXT
30
GEXT
31
REXT
32
AGC
16
SAW
15
PIFIN
14
PIFIN
13
AGC
12
VIF
11
AGC
10
SIFIN
9
SIFIN
8
FMCAP
7
AUDIO
6
GND
5
VCC
4
SDA
3
SCL
2
SLPF
1
SSC
64
HOUT
63
VERT
62
BCL
61
CVBOUT2
60
VCC
59
CVBSOUT1
58
GND
57
VAMP
56
CLPF
55
XTAL
54
XTAL
53
BTUN
52
HALFCTR
51
FBOSD
50
ROSD
49
FB
33
Y/C
34
CHR
35
APR
36
UIN
37
VIN
38
YIN
39
YOUT
40
VOUT
41
UOUT
42
BOUT
43
GOUT
44
ROUT
45
ISENS
46
BOSD
47
GOSD
48
SAW FILTER
5
4
3
1
2
SOUND TRAP
    
BLOCK DIAGRAM
8
9
10
11
12
13
14
I
H
G
F
E
D
C
B
A
Page 30
32
37GT-27H
NO PICTURE
NO
Check Q1001, 
IC1001, IC1003
Check the tuner supply 
and band biases. Both
 must be approx. 5V DC
Normal
YES
Is tuning voltage 
normal at  
Pin (2) of Tuner? 
Check Picture 
setting by R/C. Signal 
should be received.
-Check the AGC Voltage:
 Pin (1) of Tuner.
-Check the SAW Filter: SF201
TROUBLESHOOTING TABLES.
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