JVC RC-838L Service Manual page 8

RC-838L/LB
Tuner Alignment
Output Measuring: Speaker terminal (Impedance =3.202), output level 50mW (0.4V/3.2Q)
AM IF & RF Alignment
Input (SSG) Modulation 400Hz, Modulated to 30%
Signal
Step
Frequency
Input Signa
Place to be
Set the V.
Band
Frequency Given to
aligned
Capacitor to
1
MW 455kHz
Loop Antenna
T4,5,3
Minimum
2 (IF) Repeat the Step 1, and adjust for no further improvement.
3
145kHz
L14
Maximum
Loop Antenna
4
360kHz
C68
Minimum 7
5 Lw Repeat the Steps 3 & 4.
6
160kHz
LQ
160kHz Signal
Loop Antenna
7
350kHz
C65 350kHz Signal
8
Repeat the Steps 6 & 7, and adjust for no further improvement.
9
520kHz
Li3
Maximum
tj Loop Antenna
11 MW Repeat the Steps 9 & 10.
12
600kHz
6O0kHz Signal
Len
|
Loop Antenna
a
13
1400kHz
1400kHz Signal
Repeat the Steps 12 & 13, and adjust for no further improvement.
17 Swi Repeat the Steps 15 & 16.
Maximum
Minimum
Repeat the Steps 18 & 19, and adjust for no further improvement.
nee:
20
21
5.90MHz Rod
Antenna through
L16
Maximum
22
6.30MHz
Dummy Antenna
C70
Minimum
23
sw2 Repeat the Steps 21 & 22.
[30 | SW3 a
30
6MHz
Rod Antenna
through
L11
6MHz Signal
No, 1380