Dual CC 8065 Serviceanleitung Seite 3

Tuning Instructions СС 8065
Signal source Equipment
setting
Signal source setting Connection of
measuring instrument
Item to be tuned Tuning, Remarks
1) Azimuth (lift off cover cassette slot)
to Pin 6 + 13 IC 301
Test cassette Dolby: OFF 10 kHz AF voltmeter Azimuth screw Use lacquer to fix
to OUTPUT to left of the head at maximum
2) Таре speed
Test cassette Dolby: OFF 3150 Hz Frequency counter Capstan motor 3150 Hz
to OUTPUT rear
3) Playback level and VU Meter
Test cassette Dolby: OFF 400 Hz AF voltmeter VR 101 UR 500 mv
Dolby Pegel to OUTPUT
МА 601 UR VU Display O dB
4) Record level
AF generator Dolby: OFF 400 Hz AF voltmeter Record level 500 mV
to INPUT Record: ON арргох. 80 ту to OUTPUT control maximum
left/right Metal Tape
VR 501 UR 500 ту (during play)
5) RF premagnetization
AF generator Dolby: OFF 12 kHz AF voltmeter Record level 50 mV
to INPUT Record: ON approx. 80 mV to OUTPUT control max.
left/right Metal Tape — 20 dB
basic setting 50 mV
CrO; Tape Met. VR 301 L/R
Fe Tape
Cr. VR 302
Fe VR 303
Check the recording level again after setting the premagnetization.
Ifit deviates (by more than 1 dB), repeat tuning, record level and RF premagnetization.
6) RF oscillator
Metal cassette Record: ON Frequency counter L301 85 kHz
to CNT 301
7) RF trap
Metal Record: ON AF voltmeter L303 L/R Minimum
cassette to TP 3 L/R
8) 19 kHz pilot-signal filter
AF generator Dolby: OFF 19 kHz AF voltmeter Record level
to INPUT Record: ON approx. 80 mV to OUTPUT control max.
left/right MPX: ON
Metal Tape L 401 UR Minimum
9) HX-Pro-coil
Record: ON AF voltmeter L301 UR Minimum