Sharp XL-570

XL-560,570/C
– 18 –
Figure 18 BLOCK DIAGRAM (3/4)
3
1
5
11
12
8
10
2
6
7
9
1
2
3
4
5
6
9
8
7
9
8
7
6
4 3 2 1
1 2 3 4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
1
1 3
5
R
T
A
D GND
150K
150K
MUTE
+
–
–
+
REC SW
P/B SW
CONT
P/B SW
REC SW
Q171
Q154
Q155
B-CAN
Q172
SWITCHING
SWITCHING
REC
SWITCHING
BIAS OSC
REC BIAS
CONT
A–12V
SWITCHING
NF
L-IN
R-IN
NF
L-OUT
ALC
Q107
SWITCHING
L-CH
R-CH
REC MUTE
Q105
Q106
REC
R-OUT
X IN
NC
CE
DI
MO/ST
FM
MW FM DO
FM IN
X OUT
VSS
AOUT
AIN
PD
VDD
AM IN
NC
IF INIF REQ
SW
PHASE (AM/FM)
AM MIX OUT AM IF IN REG FM IF IN PHASE IF OUT VCC FM DET
STEREO
SD
MO/ST
L-CH OUT
R-CH OUT
MPX VCO
AM OSC OUT
FM AFC
AM RF IN
VSM
AM LOW CUT
FM/AM OUT
MPX IN
AM OSC OUT
AM OSC IN
+5V
+5V
FM+B
Q360
AM MIX OUT
AM IF IN
VCC
Q351
SWITCHING
FM RIPPLE
FILTER
L-CH
L-CH
A-GND
R-CH
R-CH
M_12V
D_GND
VD0
CL
D0
CE
DI
TO CD SERVO PWB
VT
FM MUTE
LEVEL
VR351
10K(B)
L354
LOW PASS
FILTER
X351
VCO
T302
AM ANT.
VD301-1
VD301-2
T306
AM OSC.
L341
BALUN
T351
AM IF
GND
CF352
CF351
X352
4.5MHz
ZD351
A-GND
A+12V
Q101-Q104
Q153
Q151
L151
Q152
BEAT CANCEL
SWITCHING
Q609
CNP603
A-12V
IC303
LA1832
FM IF DET./
FM MPX./AM IF
IC101
HEAD SELECTOR
BA3126N
IC102
PLAYBACK AND RECORD/
PLAYBACK AMP.
BA3311L
R-MUTE
IC302
LC72131
PLL CONTROLLER
2
1
2
AM LOOP
ANTENNA
CNP301
TP301
A–12V
A-GND
A-GND
ERASE
ALC
CL
10 11
13 1215 1417 162122 20 19 18
10 11 12
131415161718192021222324
FM IF
REC
IC102
SWITCHING
REC R-CH
9
78654323211
VT
Q306
Q305
CF302
CF303 T304
BF301
FM IF
10.7MHz
IC301
FM FRONT END
TA7358AP
BAND
PASS
FILTER
L303
VD302
L302
VD303
FM RF
FM IF FM IF
FM IF AMP.
FM OSC
VT
SO301
FM ANTENNA