Block Diagram - Sharp SD-CX1H(BL) Service Manual

SD-CX1H
FM
75ohms
SO301A
ANTENNA
TERMINALS
GND
AM
BALUN
L341
AM
ANTENNA
5V
DI
DO
CLK
CE
TUNER_SM
+12V(A)
+B7
R_OUT
28
GND(A)
27
L_OUT
26
AD-GND
25
R_IN
24
AA-GND
23
L_IN
22
A-VCC
+B6
21
MD_LOADSW
MD+5V(D)
20
19
D-VDD
+B8
18
MD+6V(A)
D-VDD
17
D-GND
16
D-GND
15
D-GND
14
D-GND
13
MD_D_STB
12
MD_DATA
11
MD_KDATA
10
MD_SERCH
9
MD_DSCK
8
MD-ST
7
MD_RESET
6
POWER
5
4
DIG-IN
3
2
D-GND
DISPLAY SECTION
1
CNPU04
CD SECTION
FE301
8
1
FM FRONTEND
3 4
2 6 7 5
T302
T306
AM OSC.
FM +B
JTU01
+B7
AUX INPUT
R-CH
L-CH
DU01
23
VDD
9
AUX L
R
16
TUN_L 10
TUNER L
R
15
TUN_R
LC75341M
NC
11
NC
14
FUNCTION/VOLUME/TONE
12
MD/CD L
R
13
SELO
8 17
L
REC OUT
POWER SECTION
Figure 38 BLOCK DIAGRAM (1/4)
FM IF
AMP
FM IF
FM IF
Q301
1 CF301 3 1
CF302
2 3
FM IF
IN
1
VR351
10K(B)
FM
AM OSC
MUTE
LELEL
24
TP301
20
X IN
+B
SWITCHING
4.5MHz
Q360
6
5 20 19
BASS TRE
AUDIO
PROCESSOR
ICU01
4
L-CH L-CH
R-CH
21 R-CH
AUDIO
GND
SURROUND
3 1 2 24
R
SURROUND
DISPLAY SECTION
– 38 –
2
+B
AM IF
1 3
T351 CF352
2
AM IF
2 4 8
IC303
LA1832
FM IF DET./FM MPX./AM IF
IF
OUT
23 22 21 7 6 10
13
MPX
VCO
CUT
15 16 11 10 13 12
IC302 LC72131
PLL CONTROLLER
X OUT
7
1 22 21
X352
+5V
23 22 21 20 24 19 18 14
ICT21
LC72720
RDS DECODER
6 8 4
13 12 5 7 15
XT21
FM/AM
4.332MHz
ICS01
PRE AMP.
KIA4558F
–B2 +B7
–VCC
+VCC
4
8
5
7 L-CH
3 1
R-CH
6
2
QP02
QU01
MUTING
QS02
QPO6
QS01
SYSTEM_MUTE
ON/OFF
QPO5
DISPLAY SECTION
TP302
LOW PASS
FILTER
+B
L354
9 16
17 18
GND
5
12 11 20 14 15
MPX
PHASE
VOLTAGE
REGURATOR
+B
+5V
9 8
17
+B
DI DO CLK CE
5
4 6 3
Q371
QT21 AMP.
3 2
9
T3
10 T4
11 T5
16 T6
17 T7
1
ICP01
PRE AMP.
NJM4558M
–B2 +B7
–VCC +VCC
4
8
L-CH
5 L-CH
7
3 1
R-CH
R-CH
6
2
–12V(A)
QP07-QP10
ALC
+12V(A)
HEAD PHONE
QP04
QP03
MUTING
DISPLAY SECTION