KS-FX621
(No.49825)1-17
SECTION 3
Adjustment
3.1 Adjustment method
AM mode 999kHz/62dB, INT/400Hz, 30%
modulation signal on recieving.
FM mono mode 97.9MHz/66dB, INT/400Hz, 22.5kHz
deviation pilot off mono
Test instruments reqired for adjustment Standard volume position
Measuring conditions(Amplifier section)
Frequency band
1. Digital oscilloscoe(100MHz)
2.Frequency counter meter
3.Electric voltmeter
4.Wow & flutter meter
5.Test tapes
6.Torque gauge...................Cassette type for CTG-N
(Mechanism adjustment)
VT724.......................for DOLBY level measurement
VT739............For playback frequency measurement
VT712....For wow flutter & tape speed measurement
VT703.....................For head azimuth measurement
Balance and Bass, Treble volume, Fader
: Center(Indication"0")
Loudness, Dolby NR, Sound, Cruise : Off
Volume position is about 2V at speaker output with
following conditions, Playback the test tape VT721.
Power supply voltage.............. DC14.4V(11V to 16V allowance)
Load impedance............ 4 (4 to 8 allowance)
Line out level/Impedance..............1.0V/20k load (250 nWb/m)
FM stereo mode 1kHz, 67.5kHz dev.pilot 7.5kHz dev
Output level 0dB (1 V,50 /open terminal)
87.5 MHz to 108.0MHz
522 kHz to 1620 kHz
144 kHz to 279 kHz
Band
FM
AM
MW
LW
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