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XL-505H,505E,507E/CP-505,505E,507
T302
AM ANT.
AM OSC.
ANTENNA
T306
CNP301
1
AM LOOP
2
FM
3
FM RF
VT
1
3
BF301
RECORD/PLAYBAK
HEAD
L-CH
R-CH
ERASE HEAD
RF AMP.
Q305
FM OSC
VT
FM IF
T304
FM+B
4
5 6
7
8
9
IC301
TA7358AP
FM FRONT END
IC101
BA3126N
REC SW
1
2
3
P/B SW
CONT
4
5
6
AUDIO +12V
P/B SW
7
8
9
REC SW
Q171
SWITCHING
Q154
BEAT CANCEL
SWITCHING
Q155
REC
Q172
SWITCHING
Figure 18 BLOCK DIAGRAM (3/4)
FM MUTE LEVEL
VR351
AM OSC OUT
24
23
21
1
2
4 5
AM IF
T351
CF352
CF302
VT
D GND
22
21
20
X352
4.5MHz
1
3
IC302
LC72131
PLL CONTROLLER
SWITCHING
Q101-Q104
SWITCHING
Q151
A-12V
Q152
L151
BIAS OSC.
SWITCHING
Q153
REC BIAS
CONT
– 18 –
X351
18
17
16
15
6
7
8
9
10
+5V
CF351
16
15
12
4
5
6
7
9
10
11
REC
3
1
L-IN
5
IC102
150K
–
+
ALC
MUTE
+
R-IN
9
–
150K
6
7
12
11
SWITCHING
R-MUTE
Q351
14
13
12
VOLTAGE
REGULATOR
ZD351
+5V
AUDIO
+12V
A-GND
AUDIO +1
FM+B
Q360
VOLTAGE
REGULATOR
Q105
REC
REC MUTE
Q106
A-12V
8
10
L-CH
SWITCHING
ALC
2
Q107
R-CH
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