Tuner Alignment - Sherwood RX-772 Service Manual

1. Electrical specification.
NO.
1-1 Local OSC
1-2
Frequency cover range
1-3
Standard supply voltage
1-4 FM Antenna input Impedance
1-5
AM Loop Antenna
2. Electrical Characteristics.
TEST ITEMS
NO
AF Output Level
FM
Auto Stop Sens.
Stereo Separation
AF Output Level
AM
Auto Stop Sens.
3. Adjust Point.

Tuner Alignment

ITEMS
TEST
CONDITION
47§ Ú Load
1kHz
47§ Ú Load
SPECIFICATION
A M
Above the receiving Frequency
522 ~ 1620kHz
T.L. MOD.
T.P.
dBu kHz,%
98.1 60 75
98.1 -- 75
98.1 60 75
1000 74 30
1000 -- 30
F M
87.5 ~ 108.0MHz
12(+/-0.5V)
75 ohm
20uH ( 1kHz )
Specification UNIT
600±100 mV
20 ±5 dBu
40 min dB
200±50 mV
55 ±15 dBu
Adjustment
Non Adjust
SVR1
SVR2
Non Adjust
SVR3