Teac AG-680 - Measurements and Calibration; FM;AM Tracking Voltage Adjustments; AM RF Adjustment Procedures; FM RF Adjustment Procedures

| MEASUREMENTS AND ADJUSTMENTS
1.FM, AM TRACKING VOLTAGE ADJUSTMENTS
(FM,
AM)
DC
VOLTMETER
vissccsscsssansssteseennast
CONNECT
TO
TEST
POINT
TP1
and
GND
NO. Band Frequency | Adjust for Adjustment
1 | FM | 87.50MHz | 1.5V L7
2 | AM | 530KHz | IV T101
2. AM RF ADJUSTMENT
Signal Generator.........ecccseeee Connects to the AM ANT. Coil through the loop antenna.
Adjust for the indication of VTVM of the wave form of scope to be maximum.
BAND Step Frequency Adjust for Adjustment
1 610KHz Maximum sensitivity T101, T104
AM 2 1510KHz Maximum sensitivity C127
3 Repeat steps 1 and 2 several times.
AC EVM OSCILLOSCOPE
tented
OUTPUT
terminal
3.FM-RF ADJUSTMENT
Signal Generator... cesses Connect to FM ANT JACK (FM IN) through the dummy.
AC EVM oscitoscoPE | NO. | Frequency Adjust for Adjustmert
1 90.10MHz Maximum Sensitivity L2, L5, Le
2 Repeat step 1 several times.
OUTPUT
terminal