P R E L I M I N A R Y R E L E A S E
3 8
Component Audio System
Harman Kardon
Festival 60/80
...
US FM ADJUSTMENT Festival 60/80 (TUNER UNIT)
CONTINUED
Adjustment Point
1. Discriminator (Fig.2)
2. VR251 for Multiplex adjustment.
3. VR231 for Signal Indicator Sensitivity adjustment.
Adjustment Method
1. Discriminator (Fig.2)
Adjust T232 so that leading of DIGITAL VOLT METER reads 0V
±
30mV.
Adjust T233 and TU201 so that distortion level reads minimum.
Adjust above both adjustment several times.
2. Multiplex (Fig.5)
Adjust VR251 so that Separation Ratio “Lch to Rch” and “Rch to Lch”
reads maximum and even level.
3. Signal Indicator Sensitivity (Fig.2)
(A)
Input signal 97.9kHz, 35.2dBf, 1kHz, 75kHz Deviation.
Adjust VR231 so that Signal (TUN.) Indicator just barely turns on.
Input signal 97.9kHz, 34.2dBf, 1kHz, 75kHz Deviation.
Confirm Signal (TUN.) Indicator turns off.
US RDS ADJUSTMENT Festival 60/80 (TUNER UNIT)
Adjustment Item
RDS Adjustment
Condition
Set the Function selector to the “FM” position.
Equipment
DIGITAL VOLT METER
FM SIGNAL GENERATOR and DUMMY ANTENNA (Fig.3)
RDS MODULATOR
2 CHANNEL VOLT METER
OSCILLOSCOPE
2 CHANNEL DISTORTION METER
See Fig.6
on page XX
Connection and Set Up
INPUT: FM ANTENNA TERMINAL
Input 97.9MHz, 35.2dBf, 1kHz, 75kHz deviation and set PS, AF or PTY.
(A)
Load Type SSG (W/75ohms Dummy): 60dBuV (SG)=65.2dBf (ANTENNA),
Open Type SSG (W/75ohms Dummy): 66dBuV EMF (SG)+65.2dBf (ANTENNA)
Confirmation Method
1. PS: A Program Service Name.
AF: A List of Alternative Frequency.
PTY: A Program Type.
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