Read Sharp 66GS-62 (serv.man10) Service Manual online
31
66GS-62H
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTE:
1. DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACING PARTS.
OUTLET BEFORE REPLACING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
NOTE:
1. The unit of resistance «ohm»is omitted (K=1000
1. The unit of resistance «ohm»is omitted (K=1000
ohms. M= Megaohm).
2. All resistors are 1/8 watt. unless otherwise noted.
3. All capacitors are mF, unless otherwise noted
3. All capacitors are mF, unless otherwise noted
(P= mmF).
4. The capacitor with Part No. RC-FZ9XXXBMNJ
is designed to with stand 63V.
5. The capacitor with Part No. RC-FZ4XXXBMNJ
is designed to with stand 50V.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( )
IS DIRECTLY CONNECTED WITH AC MAINS
VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN
ISOLATING TRANSFORMER BETWEEN TV
RECEIVER AND AC LINE TO ELIMINATE HAZ-
ARD OF ELECTRIC SHOCK.
IS DIRECTLY CONNECTED WITH AC MAINS
VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN
ISOLATING TRANSFORMER BETWEEN TV
RECEIVER AND AC LINE TO ELIMINATE HAZ-
ARD OF ELECTRIC SHOCK.
WAVEFORMS MEASUREMENT:
1. TEST EQUIPMENT: Digital Oscilloscope (Tektronix TDS 3012).
2. TEST CONDITIONS: PAL B/G full colour bar, 1KHz sinewave (volume regulation 50%).
Note: Waveforms 8 and 11 should be taken with the TV set in Stand-by mode.
Red in
1
Green in
2
Blue in
3
!
IMPORTANT SAFETY NOTE:
PARTS MARKED WITH «
» (
) ARE
IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET. BE SURE TO REPLACE THESE
PARTS WITH SPECIFIED ONES FOR MAINTAIN-
ING THE SAFETY AND PERFORMANCE OF THE
SET.
OF THE SET. BE SURE TO REPLACE THESE
PARTS WITH SPECIFIED ONES FOR MAINTAIN-
ING THE SAFETY AND PERFORMANCE OF THE
SET.
CAUTION
This circuit diagram is original one, therefore there may be light difference
from yours.
This circuit diagram is original one, therefore there may be light difference
from yours.
32
66GS-62H
I Sense
7
V St-by
8
E/W Output
9
V Switch
10
V Control St-by
11
Vp (Primary)
12
Vertical Input
13
E/W Correction
14
V inner correction
15
Vertical + input
16
VH
17
H Control
18
Red output
4
Green output
5
Blue output
6
33
66GS-62H
V in Headphone R
22
V in Speaker L
23
V out Speaker L
24
V out Speaker R
25
V in Speker R
26
X1002
27
V Flyback Vertical
28
Vertical output
29
Vertical input
30
IF Video output
31
Vb (Horizontal)
19
Vc (Horizontal)
20
V in Headphone L
21
34
66GS-62H
SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315N3).
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
Page 35
Page 36
M
1
000
B
R
G
+5V
+5V
+5V
1
2
3
4
5
6
1
2
3
4
12
34
VC
T
IX1
8
+5VSTBY
+3.3VSTBY
+3,3VSTBY
+16
V
+5VSTBY
+3.3V
+5VSTBY
+5VSTBY
+3.3V
+5V
+16V
-1
6V
+165
V
+5
V
+12V
+12
V
+12V
+12V
+5V
+13V
12
3
4
5
6
7
8
+5VSTBY
IX1641
B
M
Q70
9
+5VSTBY
+5STBY
G
B
VPROT
HOUT
R
VI2
VI1
AV2
ALCLOCK
VOUT
CR1
MUTE
AV2
KEY
PROT
FI
FB
IR
LEDOPC
STBY
E/W
PROT
KEY
AV1
AV1
KEY
LED
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
R1007
4K7
(TQ)
C701
330nF
(275V)
FZ0192BM
R1002
3K3
R1001
3K3
L701
F0111BM
D798
BYV27-100
DX0621
D719
BYV27-100
DX0621
JF701
100nF
IC1003
24C08
IX1683BM
NC
1
S1
2
S2
3
VSS
4
SDA
5
SCL
6
WP
7
VCC
8
D727
DX0551
Q708
BC547
TX010
6
Q706
2SC2412
R1009
1K
D1004
DX0551
R1010
100K
C1021
1nF
R624
1K
R625
330
C805
F701
FS-C3226
(M)
GN030
4
3
2
CU0205B
M
1
D1001
PX0105
1
2
3
1
2
R1013
100
IC901
TDA6107
VI(1)
1
VI(2)
2
VI(3)
3
GND
4
SENS
5
VDD
6
VO(3)
7
VO(2)
8
VO(1)
9
R906
2K7
(1/2W)
C901
10uF
(250V)
D901
1N4004
DX0501BM
C902
PB3DE472
FOCUS
G2
(L3)
(H)
C
N
W-2710BM
R908
2K7
(1/2W)
R907
2K7
(1/2W)
R904
4M7
(1/2W)
JF702
3,3uH
(CF)
S702
K0079GE
S703
K0079GE
S704
K0079GE
S705
K0079GE
R1033
100
C737
100uF
(16V)
R1099
100
D712
BYV28-600
DX0618BM
D703
DX0555
RF2005
D704
DX0555
RF2005
D701
DX0555
RF2005
D702
DX0555
RF2005
C703
10nF
250V
KZ0029CE
C704
10nF
250V
KZ0029CE
C706
680nF
(400V)
(G)
PLGN0207
C702
10nF
250V
KZ0029CE
R713
10K
R706
390K
(TQ)
R755
390
R756
100
R758
2R7
D1007
DX0551
Q903
2SC2412
Q902
2SC2412
Q901
2SA1037
R913
390
R912
2K2
R910
390
R911
100
Q906
2SC2412
Q905
2SC2412
Q904
2SA1037
R918
390
R917
2K2
R915
390
R916
2K2
Q909
2SC2412
Q908
2SC2412
Q907
2SA1037
R919
120
R923
390
R922
2K2
R920
390
R921
100
D902
C5V1
EX0545B
M
C910
100nF
R905
2K2
(K)
C
N
W-2865BM
C911
100nF
L1006
1uH
(NM)
C1040
47uF
Q1001
2SC2412
LP701
RLAMP001
R771
82K
(TQ)
R765
82K
(TQ)
R774
82K
(TQ)
R770
82K
(TQ)
D1006
DX0551
R1035
33K
R1040
2M2
D1009
C4V7
EX0544BM
R903
0
R902
0
Q702
TX023
1
B
M
R725
3K3
D717
DX0551
C721
10nF
(FZ)
D731
DX0551
R749
680K
(TQ)
R711
10
R715
18K
(1%)
+VS
-VS
IC70
1
IX1556
8
7
6
5
4
3
2
1
R788
22K
Q721
2SA1037
Q720
2SC2412
R785
100K
C712
1uF
(160V)
R783
220K
R712
390K
(TQ)
R705
8K2
Q712
2SA1037
D716
C6V2
EX0584BM
2%
R751
100K
R786
1K8
R784
18K
D715
DX0551
R716
390K
(TQ)
R710
330K
(TQ)
(1%)
R709
330K
(TQ)
(1%)
C711
68nF
(250V)
FZ0206BM
R708
390K
(TQ)
Q704
2SA1037
Q705
2SC2412
R754
10K
R752
10K
D714
C6V8
EX0548B
M
D741
C4V3
EX0543BM
R701
22K
R748
220K
R790
270
(1/2W)
D707
DX0551
R789
100K
D742
DX0551
C798
220pF
2KV
KZ0035CE
C905
100nF
(400V)
(FZ)
R772
680K
(TQ)
R719
R779
R778
D744
DX0551
R926
560
R927
560
R925
560
Q910
2SA1037
R933
3K3
R932
1K8
R931
8K2
C912
220pF
R799
1
(1/2W)
XZ0200BM
POR701
P0001BM
D734
DX0551
R721
100
(TQ
)
R703
2K7
C804
100nF
R1020
10K
C409
100nF
C408
100nF
L602
3.3uH
(DF)
C407
100nF
R804
2K2
FB701
LN-0037BM
C720
1000uF
(6.3V)
FB702
LN-0037BM
T702
Z0583BM
3
1
4
6
R1018
100
R1022
100
R901
0
C1033
100nF
C1034
100nF
R361
100K
C1036
100nF
L901
0
C915
33nF
C914
33nF
D747
DX0551BM
R1043
680
R759
(TQ)
390
14
12
13
11
T7
01
RNZ0582BM
5
6
4
C727
1000uF
(25V)
D903
DX0539
C904
10uF
R934
(TQ)
R935
(TQ
)
C1042
470nF
D749
DX0519BM
C731
100uF
(25V)
F703
FUS
Q701
TX0231
B
M
FB703
R1034
8K2
TP7
0
1
R1030
2K2
R1031
1K
R1032
1K
D1011
EX0545
TRC
8
9
10
6
11
5
7
1
12
13
R757
1K8
D904
DX0600
D906
DX0600
D905
DX0600
L
L1005
1uH
(NM)
C916
2n2
S701
P0600BM
C1020
220nF
C713
(450V)
68uF
EZ0141BM
C1002
100nF
C223
R802
1K2
R914
120
C1017
100nF
C1018
2n2
R909
120
Q707
2SC2412
Q1006
2SC2412
C1023
100nF
R1039
3K9
R1014
100
C803
470uF
R1041
L1002
1uH
(NM)
F702
FUS
R803
270
C909
470uF
(16V)
R1017
3K3
D1005
C33
EX0564B
M
C1024
100nF
C
4
C726
2200uF
(25V)
R1006
4K7
(RA)
R1016
2K2
D724
B2V4
EX0574B
M
D1013
C5V6
EX0546B
M
IC
1
VERTQ
97
VERT
98
EW
99
SENSE
100
GNDM
101
RSW1
102
RSW2
103
SVMOUT
104
ROUT
105
GOUT
106
BOUT
107
VSUPAB
108
GNDAB
109
VRD
110
XREF
111
AIN3
112
AIN2
113
VOUT
48
CIN1
49
CIN2
50
VIN1
51
VIN2
52
VIN3
53
VIN4
54
DISINTROM
55
P27
56
P26
57
P25
58
P24
59
VSUPP2
60
GNDP2
61
P23
62
P22
63
P21
64
P20
65
VBCLK
66
VB7
67
VB6
68
VB5
69
VB4
70
VB3
71
VB2
72
VB1
73
VB0
74
CLK20
75
HOUT
76
VSUPD
77
GNDD
78
P37
79
P36
80
P35
81
P34
82
VSUPP3
83
GNDP3
84
P33
85
P32
86
P31
87
P30
88
NC
89
FBLIN
90
RIN
91
GIN
92
BIN
93
VPROT
94
SAFETY
95
HFLB
96
C1051
100nF
L80
1
VAR1
VX0035BM
C1049
10nF
C1048
10nF
J181
LN-0037CE
C
C
R1011
2K2
C1003
2.2nF
R782
47K
R750
22K
C
C1001
470uF
(6.3V)
C1027
10nF
R714
.56
(2W)
C707
100uF
(25V)
C728
D1012
C5V6
EX0546B
M
C1019
47uF
(16V)
