Block Diagrams - Sharp CD-SW250DVD Service Manual

CD-SW250DVD
CHAPTER 4. E Market CD-SW250DVD Service Manual CD-SW250DVD Audio
DIAGRAMS

[1] Block diagrams

FM
ANTENNA
SO302
BF301
B.P.F
FM
RF
AM LOOP
ANTENNA
AM TRACKING fL
1
T303
2
CNP301
MIC IN
MIC1OUT
MIC2OUT
JK1/2
MIC JACK
VRK1
MIC LEVEL
FROM DVD SECTION
CNS9
SWITCHING
REC /P.B. HEAD
Q101-
L-CH Q104
TAPE R-CH
AC BIAS
ERASE
HEAD
FM IF
IC301
6
T302
TA7358AP
1
FM FRONT END
9
3 4 5 7 8
L312 T301
OSC BUFF
Q302
T306 AM BAND
COVERAGE fL
VT
+B5
+B
FM
ICK1
Q360
M65856SP
MIC AMP.
SWITCHING
40
ICK2
LATCH
4
TJM4558CD
42
DATA
9
CLOCK 41
6 OPE AMP.
5
ROUT
35
7
7
LOUT 36
8
2
1
RIN 32
3
12
13
LIN 31
VCC +B5
23 QK1
2 2
IC101
AN7345K
10
PLAYBACK AND RECORD
11
/PLAYBACK AMP.
12
13
P.B
BI601
L
4
L(TA)
2
21 R
R(TA) 23
H/N
L
7
18 R
L REC REC
9
R REC 16
11
12
NOR/
15
HIGH
SWITCHING
SWITCHING
Q105
Q114
Q106
+B5
SWITCHING
Q112 Q113
+B5
DVD_PROTECT
BIAS
BIAS
Q111
Q109 Q110
L103
OSC
BIAS
SWITCHING
Figure 4-1 BLOCK DIAGRAM (1/3)
10.7MHz
FM IF
CF351
CF303
450kHz
CF352
T351
AM IF
1 2 4 5 1 9 8
AM MIX AM IF GND FM+B FM
OUT DET
FM/AM
OUT MPXIN
23 21 24 7 18
X352
4.5MHZ
20 1 22 15 16 11 3 4 5 6
OSC
MO/ST
FM/AM
9 10
7 21
FM
JK690
L
L 9
VIDEO/AUX
R AUX
R 16
L
10
TAPE
IC601
15
R
LC75341
L
11
TUNER
AUDIO PROCESSOR
R 14
L
DVD/CD
12
R
13
+B5
7 18 8 17
PB
Q612
CD
Q613 ATT
MUTING
REC
IC856
(1.8V)
LD1117V
DVD_1.8V
2
1.8V VOLTAGE 1
REGULATOR
DVD_A3.3V
2
DVD_D3.3V
1
DVD_A5V
DVD_S5V
IC857
LD1117V33
3.3V VOLTAGE
REGULATOR
4 – 1
QS01
+B5
1
ZD351
IC503
5.1V
KIA4558F
4
X351
PRE AMP
456kHz
3 5
7 13
VCO MO/ST
L
14
R
15
FM/AM
16 12
17
Q607 Q608
DI 1
CE
2
CLK 24
-20dB
ATT
R
21
Q601 Q603
Q602 Q604
L
4
23 24 21 22
IC603
3 23
IXA043AW
NEW SOUND
+B4
REC/PLAY
Q107
Q108
IC853
BD9701T
1HC DC-DC
CONVERTER
+B
1
5V
3
2
5
Q866
3
Q853
SWITCHING
DVD_7V
+B9
REGULA
8
IC852
KIA780
3
2
VOLTA