Tuner Circuit - JVC RC-BZ5LB Service Manual

Tuner circuit

PIN NO. 1 2 3 4 5
7
FM NO SIGNAL 0.8 0 0.7 1.1 5.0 5.0
IC1 FM 60dB STEREO 0.8 0 0.7 1.9 5.0
AM NO SIGNAL 0 0 0.3 1.3 5.0
IC2 FM NO SIGNAL 2.4 0 0 5.0 5.0
PIN NO. 13 14 15 16 17
FM NO SIGNAL 4.4 3.6 3.6 1.5 1.4
IC1 FM 60dB STEREO 4.4 3.6 3.6 1.4 1.6
AM NO SIGNAL 4.5 0 0 1.4 1.4
IC2 FM NO SIGNAL 3.6 0.1 0 2.5 5.0
BP1 QQR0768-001Z
6
L12
QQR0756-001
D1.2 SVC203SPA-JVKV1370N
D1
C3
3.9P
5
R1
R7 100K
100K
C13
0.022
4
C60
0.001
CH
C64
12P
3
CH
C62 12P
2
C63 0.001
R42
L10
QQL231K-4R7Y
1
A B
RC-BZ5LB/BZ5RD
RC-BZ6BU
6 7 8 9 10 11 12
5.0 0 3.6 5.0 1.6 1.5
5.0 4.0 0 3.6 5.0 1.6 1.5
5.0 5.0 0 4.1 4.3 1.6 1.5
5.0 3.6 3.6 0.1 0.1 0.1 0
18 19 20 21 22 23 24
3.6 4.0 5.0 5.0 5.0 5.0 5.0
3.6 4.0 5.0 5.0 5.0 5.0 5.0
3.6 4.1 5.0 5.0 5.0 5.0 5.0
1.0 1.0 0.8 0 2.3
CC
C21
0.047
R20
22K
R47
C6
22
0.01
D2
C7
0.001 R3 27
C16
0.01
R2
47K R9
4.7K
C77
0.001
R54 C71 R63
2.2K 10/16 47K
R56 3.3K
R57 1K
C69
0.0022
R55
C61
2.2K
C70
100/10
2.2/50
R52 C37
C65
10K 0.001 R44 0.001
2.2K
PLL
R61 R59
1K
1K
47K R60 1K
C D E
2-6
PP
C22
C23 R18
430P
12P 1K
R13
100K L4
QQR0723-001
(MW OSC)
R37
56
R25
1K Q1 C51
2SC2668/0/-T
330P
C31
0.001
R24
680
R48
1K
C32
0.01
FM RF/IF/EDT/MPX AM RF/IF/DET
CC
C42
0.047
R30
18K
T2(AM IF)
QAX0540-001
(FM IF)
C35
R33
0.1/50
330
(FM IF)
F G
NOTES
1. VOLTAGES OF THE TABLE ARE DC-MEASURED WITH A DIGITAL VOLT METER.
2. ALL RESISTORS ARE 1/6W +/-5% CARBON RESISTOR.
3.ALL RESISTANCE VALUES ARE IN OHM
4. ALL CAPACITANCE VALUES ARE IN uF(P=pF).
5. ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE (uF)/RATED VOLTAGE(V).
6. ALL INDUCTANCE VALUES ARE IN uH(m=mH).
7. SI.DIODES( ) ARE ALL 1SS133T
C45
C44
0.1/50 1/50
R32
3.3K
C43
0.1/50
C41
4.7/50
CC
C47
C36 0.015
4.7/50
CC
R35
27K
C48
C33
0.015
R36
100/10
27K
C49
0.1/50
R49
18K
C50
R38
0.1/50
100
R50
18K
C38
0.01
ZD1
MTZJ3.08
D12
IN4001
AM SIGNAL
J/C/B/E/EN/U/UP/US/UT/UX/UY/UZ
FM SIGNAL
RADIO MAIN SIGNAL
H I
ANT GND
GND
TUR
TUL
TUSW6V
MPX
SDATA
SCK
TUST
J