Sharp XL-MP45H Manual de servicio - Página 16

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Sharp XL-MP45H Manual de servicio
XL-MP45H
A
MAIN PWB-A1(2/3)
AM ANT
B
D301
1N4148
D302
1N4148
L341
BALUN
C
1
2
D303
1N4148
D304
1N4148
C302
0.001
C390
0.022
C388
0.001
C301
D
0.001
C376
0.001
SO301
E
2.5V
C537
0.022
F
+B
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 8.
1
TUNER SECTION
FM SIGNAL
AM SIGNAL
AM TRACKING
T302
C329
0.022
AM BAND COVERAGE fL
C335
560P
T306
AM OSC
FE301
FM FRONT END
8 7 6 5
9V
4
3
2
C341
R369B
82
0.022
L342
R346
2.2µH
330
R529
IC521
+B
LC72723M
RDS
CIRCUIT
16 15 14 13 12 11
2V
1
2
3
L521
2.2µH
C536
0.022
2
3
Figure 16 SCHEMATIC DIAGRAM (2/9)
+B
1
1
3
2
CF301
FM IF
1K
C527
R528
1K
0.1
2.5V
C526
10
9
22P
(CH)
5
7
4
6
8
C525
C524
22P
560P
(CH)
D521
1N4148
+B
4
– 16 –
FM MUTE LEVEL
VR351
L353
1mH
24 23
22
2.1V
1
2
3
FM IF
CF302
1
3
2
C378
330P
+B
R382
330
TP301
R386
330
VT
C381
22 21 20
12P(CH)
1
2
C382
IC302
15P(CH)
LC72131
PLL(TUNER)
+B
5
6
21
AM
T351
C3
1/