Sharp XL-520W Service Manual page 18

XL-520W/CP-520
T302
AM ANT.
AM OSC.
AM
LOOP
T306
ANTENNA
CNP301
1
2
SO301
ANTENNA
TERMINAL
L302
VD303
FM IF
1 2 3
T304
BF301
1 3 6
TA7358AP FM FRONT END
RECORD/PLAYBAK
HEAD
L-CH
R-CH
ERASE HEAD
Q171
AM OSC OUT
CF302
L303
VD302
FM +B
7 8 9
IC301
REC SW
1
2
3
P/B SW
CONT
4
5
6
AUDIO +12V
P/B SW
7
8
9
REC SW
IC101
BA3126N
HEAD SELECTOR
SWITCHING Q154 BEAT CANCEL
SWITCHING
Q155
REC
Q172
SWITCHING
Figure 18 BLOCK DIAGRAM (3/4)
FM MUTE LEVEL
VR351
24 23 21 20
1 2 4 5 6
AM IF
T351
CF352
VT
D GND Vcc
+5V
22 21 20 17
X352
4.5MHz
1 3 4
5
IC302
LC72131
PLL CONTROLLER
SWITCHING
Q101-Q104
L-IN
SWITCHING
A-12V
Q151
Q152
L151
BIAS OSC.
SWITCHING
Q153
REC BIAS
CONT
– 18 –
X351
18 17 16 15 14 13
7 8 9 10 12
VCC
+5V
CF351
+5V
16 15 12
6 7 9 10 11
REC
REC./P.B.
EQUALIZER
IC102
BA3311L
3 1
AUDIO
5
+12V
150K
8
–
+
10
ALC
MUTE
ALC
2
+
R-IN 9 –
150K
6 7
11 12
SWITCHING
R-MUTE
Q351
VOLTAGE
REGULATOR
ZD351
AUDIO
+12V
A-GND
AUDIO +12V
FM+B
Q360
FM RIPPLE
FiLTER
CE DI CL
REC L R
TAPE L TA
REC
Q105
REC MUTE
Q106
L-CH
SWITCHING
Q107
R-CH
CNP602
1 2