Panasonic SC-EN17P Service Manual page 22

SC-EN17P / SC-EN17PC
SCHEMATIC DIAGRAM-2
B
TUNER CIRCUIT
Note:
H
G
F
TP2
TELESCOPIC
ANTENNA
TP1
R32
L1 33
E
D
C
B
A
1 2
:POSITIVE VOLTAGE LINE :FM SIGNAL LINE
mark indicate printed coil.
:FM/AM SIGNAL LINE :AM SIGNAL LINE
C10 R2
0.01 0
R3
3.3K
C7
1000P
C2 R5
L3 10P 68
IC1
C1BB00000846
FM/AM IF AMP
DET/AM OSC
MIX/ FM MPX
L51
3 6
2
1 4
W2
2 1
I
To POWER AMP CIRCUIT(CP2)
on SCHEMATIC DIAGRAM-5
3 4 5
:FM OSC SIGNAL LINE
:AM OSC SIGNAL LINE
R31
4.7K
R9
0
C11
1000P
C17
50V3.3
C18
0.01
C46 R14
2200P 4.7K
5V 5V 5V 5V
0V 0.7V 2.1V 2.1V
1V 5V 5V 5V 5V 1.8V 2.1V 2.1V
36 35 34 33 32 31 30 29 28 27 26
1 2 3 4 5 6 7 8 9 10 11
2.2V 2.2V 2.5V 5V 5V 2.2V 2.2V 4V 3.9V 2.8V
2.2V 2.2V 2.5V 5V 5V 2.2V 2.2V 4V 3.7V 3.4V
3 2 1
T1
CF2
4 6
1 3
2
C47
CF1
10P
1 3
2
6 7 8
22
R13 R29
3.3K 1K
L7
1 6
2
3 4
X2
R30
(75kHz)
39K
C32
50V4.7
3.5V 1.6V 1.2V
0.8V 1.8V 0.8V 2.2V
1V
0.6V 0V 3.5V 1.6V
2.1V 2.2V
25 24 23 22 21 20 19
12 13 14 15 16 17 18
2.2V 2.2V 0V 3.4V 3.4V 3.4V
2.2V 2.2V 0V 3.4V 3.4V 3.4V
R17
10K
C30
50V1
TP4
TP5
C31
50V1
TP3
SA-EN17(P,PC) TUNER CIRCUIT DIAGRAM
9 10 11
L8
100 H
W1
10 9 8 7 6 5 4 3 2 1
To C MAIN CIRCUIT(W11)
on SCHEMATIC DIAGRAM-3
12