Sharp XL 1700 - Executive Microsystem - Block Diagram

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XL-1700/1700C
Figure 19 BLOCK DIAGRAM (1/3)
ANTENNA
TERMINAL
AM Band
Coverage fL
FM MUTE
LEVEL
AM IFFM IF
FM IF
FM IF AM IF
AM Band
Tracking fL
VD301
SVC348S
FM IF DET./
FM MPX./AM IF
IC303
LA1832S
+5V
+5V
VT
+5V
+5V
+B
FM +B
+5V
FM +B
+5V
T302
T306
T351
CF301 CF302 CF352
CF351
SWITCHING
Q301
L341
BALUN
VR351
X352
4.5MHz
VOLTAGE
REGULATOR
AM
GND
FM
75ohms
SO301
VSM
AM RF
OUT OUT OUT OUT
IN IN
CUT
AM LOW
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
FM AFC
AM OSC AM OSC
(AM/FM) PHASE PHASE IF OUT VCC FM DET STEREO SD GND AM IF REG AM MIX OUT IN IN FM IF
23 22 21 20 19 18 17 16 15 1424 13
121110987654321
PLL(TUNER)
111098765431
PD
IF IN
AM IN
FM IN
VDD
AIN
AOUT
VSS
X OUT
22 21 20 19 18 17 16 15 14 13 12
FM FM
MUTE
CE DI CL DO MO/ST IF REQ X IN
IC302
LC72131
8
7
6
5
4321
FE301
FM FRONT END
TP301
456kHz
X351
Q351
Q360
ZD351
TUNER PWB
11
10
9
8
7
6
5
4
3
2
1
SD
FM ST
DO
CL
CE
DI
A_12V
D_GND
TUN_L
TUN_R
A_GND
TO
MAIN PWB
CNS301
SWITCHING
RESET
SWITCHING
SWITCHING
Q701
Q702
Q703
COM0
COM3
SEG0
SEG33
REMOCON
P—CONT
VDD
32.768kHz
8MHz
38541
1
100 67
66
65
64
63
62
61
60
59
58
33
57
56
54
53
39 48 49 5032
47
8
4
LCD701
FL DISPLAY
TO
MAIN PWB
REMOTE
SENSOR
RX701
RESET
23
VSM
VLC1
VLC2
VLC3
7
6
5
MMOD
VREF
VREF+
VSS
15
24
14
11
SYS_STOP POWER
3837
13
12
10
9
X701
X702
OSC1
OSC2
XO
XI
CLID_SW
SW711~713
SW725~728
SW709
SW718~720
SW710
KEY1
KEY2
18
17
16
SYSTEM MICROCOMPUTER/
FL DRIVER
IC701
IX0043SJ
DATA
ST SD
51 41 44
B-LIGHT
DI
CL DO CE
28272625
SURR P-MUTE CD+B
464543
CLE
40
DISPLAY PWB
Q708
Q707
Q709
Q706
GND
LED701 LED702
GND
LED704 LED703
LED PWB
TO
MAIN PWB
TO
CD PWB
Q806 Q804
Q807
CD LID
MOTOR DRIVER
7
6
5
4
3
2
1
7
6
5
4
3
2
1
M_GND
M_12V
USWD5.6V
P_CONT
D_GND
13
12
11
10
9
8
7
6
5
4
3
13
12
11
10
9
8
7
6
5
4
3
2
1
CLE
DATA
VSM
D_GND
SURROUND
P_MUTE
CD+B
DI
CE
CL
DO
STEREO
SD
1
2
SWITCH PWB
CD LID
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
CD-RW
PU-IN
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
CD-RES
CD-STB
GVSW
PU-IN
BUS0
DIMMER
LIGHT
CLID_UP
CLID_DW
BUS1
BUS2
BUS3
BUCK
CCE
CD-RES
CD-STB
123 5 6789
LED PWB
M
CD LID
OPEN/CLOSE
1
2
1
2
PROTECT
P_STB
TA7291S
CNW701
CNW702
CNW703
SW802
CNW704
IC804
LED801
M801(246-6)