Block Diagram - Sharp XL-1000H Service Manual

AM Band
Tracking fL
T302
+5V T306
AM Band
Coverage fL
FE301
FM FRONT END
BALUN
8 7 5
6 4
L341
FM +B
AM
GND
FM
75ohms
VT
SO301
ANTENNA
TERMINAL
FM MUTE
LEVEL
+5V
VD301
SVC348S
VR351
FM IF
FM IF
3 2 1
Q301
CF301 CF302
TP301
22 21 20
X352
4.5MHz
1
Figure 21 BLOCK DIAGRAM (1/5)
LOW PASS
24 23 22 21 20 19 18
1 2 3 4 5 6
AM IF
AM IF
T351 CF352
+5V
+5V
FM +B
+5V
19 18 17 16 15 14 13 12
3 4 5 6 7 8 9 10 11
– 21 –
XL-1000H/1100H
TUNER PWB
SWITCHING
FILTER
L354
Q351
X351
456kHz
17 16 15 14 13
7 8 9 10 11 12
+5V
ZD351
VOLTAGE
REGURATOR
+B
Q360
SD
11
FM ST
10
DO
9
CL
8
CE
7
DI
6
A_12V
5
D_GND
4
TUN_L
3
TUN_R
2
A_GND
1
CNS307