Read Sharp DV-740 (serv.man3) Service Manual online
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2
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A
B
C
D
E
F
G
H
I
J
DV-740/H/S/S(F)/S(R)
DV-740S(S)/W/X/(B)
DV-740S(S)/W/X/(B)
Supplement
DV-740/H/S/S(F)/S(R)
DV-740S(S)/W/X/(B)
DV-740S(S)/W/X/(B)
Supplement
4~5
B
B
C
C
E
E
1.5K
Vref
Vref select method
2.1v
2.5v
0
R41
CDLDO
MEI-
CDLD
PUHRF
PIN
F
E
VC21
E
VC21
DVDLDO
DVDLD
TRACK-
TRACK+
FOCUS-
FOCUS+
DVDMDI
TRACK+
FOCUS-
FOCUS+
DVDMDI
DVDLD
CDLD
CDLD
CDMDI
PUHRF
C
B
A
D
F
E
C
B
A
D
F
E
D
DVDMDI
DVDLDO
DVDLDO
VC21
B
CDMDI
A
PI
C
MEVO
MEI-
RF
CDLDO
VC
VC21
VC21
VC25
VC25
RFGND
VC
PIN
VC
VC21
PI
MEVO
VC
VC25
VC21
RFO
2
TEI
2
TRACK- 7
TRACK+ 7
FOCUS- 7
FOCUS+ 7
TRACK+ 7
FOCUS- 7
FOCUS+ 7
SLDC
2
SCSJ 2
SDATA 2
SCLK 2
SDATA 2
SCLK 2
TEXI
2
FEI
2
SDFCT 2
SBAD 2
SBAD 2
CEI
2
RFRP
2
MVREF2 2,7
PI_SIGO 2 4 5
MIRR 2
SEFGC 2
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFGND
RFVCC
RFVCC
RFVCC
RFVCC
RFVCC
RFVCC
RFVCC
RFVCC
RFVCC
3.3V
RFVCC
RFGND
RFGND
RFGND
C41
680P
680P
C54
0.1U
C47
4700P
4700P
R42
56K
56K
R23
10
C45
C
R27
33
R34
10
C42
100P
100P
R28
33
R29
33
R31
1.2K
U3
TL3472
1
2
3
4
2
3
4
5
6
7
8
1OUT
1IN-
1IN+
GND
1IN-
1IN+
GND
2IN+
2IN-
2OUT
VCC
L3
FB-1
L2
FB-1
C48
1000P
1000P
R43
R
C50
0.1U
C32
33P
C52
0.1U
C46
160P
R33
1.2K
R35
10K
R38
R
U2
SP-3721A
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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12
13
14
15
16
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24
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27
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64
63
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60
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58
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55
54
53
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49
48
47
46
45
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40
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37
36
35
34
33
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
DVDRFP
DVDRFN
PD1
PD2
A2
B2
C2
D2
CP
CN
D
C
B
A
F
E
DVDRFN
PD1
PD2
A2
B2
C2
D2
CP
CN
D
C
B
A
F
E
CDTE
VC12
NC
VNB
DVDPD
DVDLD
CDPD
CDLD
LDON
VC
VCI
VPB
MIRR
MP
MB
FDCHG
CDRFDC
CDRF
ATOP
ATON
AIN
AIP
VPA
SIGO
BYP
RX
DIN
DIP
FNP
FNN
VNA
HOLD1
SDEN
SDATA
SCLK
LCP
LCN
CE
FE
TE
TE
MEI
MEV
TPH
DFT
PI
MIN
MEVO
MLPF
C27
0.1U
0.1U
C26
0.1U
0.1U
C29
0.1U
0.1U
Q5
OPEN
C91
C
C28
0.1U
0.1U
Q6
OPEN
Q7
OPEN
R41
1.5K
1.5K
TC6
47U/16V
Q1
2SB1132(SOT89EBC)
R115
470K
470K
R120
R
C31
680P
680P
R119
R
R24
0
Q2
2SB1132(SOT89EBC)
R117
R
C43
1000P
1000P
C55
0.1U
R44
8.2K(1%)
C44
0.1U
0.1U
R116
R
R112
R
R113
R
R118
R
R47
100
R46
100
C56
0.1U
R45
R
C33
33P
R40
0
C53
0
0
C49
1U
R25
5.1K
C38
680P
680P
C37
680P
680P
TC5
100U/16V
C35
0.1U
0.1U
C90
33P
33P
R39
0
R124
R
R30
0
R125
R
R37
10K
TC3
100U/16V
C51
0.1U
J1
HOP-1120
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TR-
TR+
TR+
FO-
FO+
PD(MONITOR)
VCC
VR
GND
LD(DVD)
LD(CD)
VR
GND(NC)
PD
GND
RFOUT
C
B
A
A
D
F
E
VCC
VS(VCC)
GND
TC7
47U/16V
D2
1N4148
1
2
TC4
100U/16V
R36
1K
D3
1N4148
1
2
R26
8.2K(1%)
C40
680P
680P
C34
1U
C36
33P
C92
0.47U
C30
0.1U
C39
0.047U
0.047U
R128
10K
1-2. LOADER UNIT (PRE-AMP)
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