Sharp XL-560 Service Manual page 18

XL-560,570/C
AM LOOP
ANTENNA CNP301
T302
1 1 L341
AM ANT.
BALUN
2 2
T306
AM OSC.
SO301
FM ANTENNA
FM RF
VT
1 2 3 1 2 3 4 5 6 7
BF301 IC301
FM FRONT END
BAND
TA7358AP
PASS
FILTER
CNP603
L-CH
1
L-CH
2
A-GND
3
A-GND
4
R-CH
5
R-CH
6
ERASE
7
A-GND
8
M_12V
9
D_GND
10
VD0
11
CL
12
D0
13
CE
14
DI
15
VD301-1
VD301-2
Q305
FM IF AMP.
FM IF FM IF
FM IF
T304 CF303 Q306
CF302
10.7MHz
FM OSC
VT
8 9
IC101
HEAD SELECTOR
BA3126N
REC SW
1
2
3
P/B SW
CONT
4
5
6
A-12V
P/B SW
7
8
9
REC SW
Q171
B-CAN
Q154
SWITCHING Q155
BEAT CANCEL
SWITCHING
Q609
REC
Q172
SWITCHING
Figure 18 BLOCK DIAGRAM (3/4)
FM MUTE
LEVEL
VR351
10K(B)
AM OSC OUT
24 23 22 21 20
1 2 3 4 5 6
AM IF
T351
1 3
CF352
TP301
VT
D GND
22 21 20 19 18
X352
4.5MHz
1 2 3 4
5
IC302
LC72131
PLL CONTROLLER
REC
SWITCHING
Q101-Q104
SWITCHING
A–12V
Q151
Q152
L151
BIAS OSC
SWITCHING
Q153
REC BIAS
CONT
– 18 –
L354
LOW PASS
FILTER
X351
VCO
19 18 17 16 15 14 13
7 8 9 10 11 12
VCC
+5V
FM IF
CF351
17 16 15 14 13 12
6 7 8 9
10 11
IC102
PLAYBACK AND RECORD/
PLAYBACK AMP.
BA3311L
L-OUT
NF
3
1
L-IN
5
IC102
150K
8
–
+
10
MUTE ALC
2
R-IN +
ALC
9 –
150K
11 6 7 12
R-OUT
NF
REC R-CH
SWITCHING
R-MUTE
Q351
IC303
LA1832
FM IF DET./
FM MPX./AM IF
ZD351
+5V A–12V
A-GND
FM+B
Q360
FM RIPPLE
FILTER
R
TA
REC MUTE
Q105
Q106
REC
A+12V
L-CH
SWITCHING
Q107
R-CH