Read Sharp DV-RW250H (serv.man3) Service Manual online
Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM
91
90
H.AMP
8
9
SCL
SDA
V. H_SW
73
74
80
83
ENV. DET
V.REC_ST-H
ENV
DET
DET
HPF
1
3
4
AE HEAD (–)
CTL-
CTL+
CP102
HEAD AUDIO
CONTROL
Q103
Q104
Q105
Q104
Q105
PB SW
SYSCON
1
3
6
5
4
AV IN/OUT/
TUNER/HI-FI
SWD_VIDEO_IN
PRE
AMP
AMP
98
REC
EQ
EQ
VCA
P
R
LINE
AMP
AMP
P
R
2MLPF
P/Q EQ
R
40
Y/C/AUDIO/HEAD AMP IC
IC101 HA118225F
IC101 HA118225F
OSC
Q102
NORMAL A.
REC ST SW
REC ST SW
Q101
F-3
F-4
DUMMY_V. SYNC
SYSCON
63
NORMAL_A_OUT
6
NORMAL_A_IN
1
86
87
SUB
LPF
LPF
COIL, BIAS OSC
L102
L102
DVD_VIDEO_OUT
CYL
HF2
HF_COM
HF1
3
2
1
EP/LP-CH1 (R)
EP/LP_COM
EP/LP-CH2 (L)
CP101
4
5
6
7
8
9
SP-CH1 (R)
SP_COM
SP-CH2 (L)
HF1 (R)
HF_COM
HF2 (L)
2
AE HEAD (+)
1
FE HEAD (GND)
CP103
2
FE HEAD (HOT)
TU_VIDEO_OUT
89
85
Y/C_VIDEO_OUT
REC
MUTE
MUTE
MAIN
DE-EM
DE-EM
FM
AGC
AGC
629
TRAP
TRAP
69
71
X101
4.433619MHz
XTAL VCO/OSC
P
REC
Fillter
Fillter
NL
E MPH
E MPH
DEM
HPF
DLIM
DEM0
P
R
Y-LPF
N.L
DE-EM
DE-EM
33 35
GCL
37
GCL
LPF
38
Y CCD
49
51 36
YLR
REC+DO
DO
29
V AMP
SQUELCH
Clear
SYNC
SYNC
V FBC/
VALC
VALC
P
R
28
V FBC/
VALC
VALC
23
26
GCL
ACC
R
P
CLPF1
FH HPF
CT1 Trap
CT1 Trap
REC Trap
HiFi Trap
HiFi Trap
C-DL
R
P
Main
Conv1
Conv1
R
P
LPF
Trap
R
P
Main
Conv2
Conv2
BPF
Pilot
Erase
Erase
B.D.
NP-
CONV
CONV
C.K.
45
46
57
55
CCD
LPF
LPF
CCD
VCA
15
21
17
R
P
C LPF2
CK
R
P
L-DET
AV IN/OUT/
TUNER/HI-FI
42
43
BUFFER
Q108
5
6
AUDIO REC
AUDIO PB
96
CTL-
CTL+
79
31
SYNC
Sep
Sep
AUDIO_MUTE-H
SYNC
2
16
6
7
PDC IC
IC4501
LC74793/JM
IC4501
LC74793/JM
SDA
SCL
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