NAD 705 Service Manual page 13

3 . SENSITIVITY ADJUSTMENT
4 . IF TRACKING .
A . SET THE SIGNAL
60 dBuV .
B . MEASURE THE
C . ADJUST T408
D . MONITOR THE
E . ADJUST T409
F . REPEAT FROM
ACHIEVED .
5 . SIGNAL METER ADJUSTMENT .
6 . SEPARATION ADJUSTMENT .
ADJUSTMENT PROCEDURE (Cant .)
A . SET THE SIGNAL GENERATOR AND UNIT UNDER TEST TO 98MHZFM MODE .
CONNECT THE SIGNAL GENERATOR TO THE FM INPUT JACK (FIG. 6) .
SET THE SIGNAL GENERATOR OUTPUT TO 6dBuV, 1 KHZ MODULATION .
B . CONNECT AN OSCILLOSCOPE TO TAPE 2 OUTPUT .
C . ADJUST 7401, T402, T403 FOR MAXIMUM OUTPUT . REDUCE THE SIGNAL
GENERATOR OUTPUT LEVEL IF NECESSARY .
GENERATOR AND UNIT UNDER TEST TO 98MHZ FM MODE,
VOLTAGE BETWEEN TP1 AND TP2 .
(FIG 10) .
UNTIL THE VOLTAGE IS IN THE RANGE -50mV TO +50mV .
DISTORTION FROM THE SIGNAL AT TAPE 2 (FIG 10) .
FOR DISTORTION UNDER 0 .15% .
(C) ABOVE UNTIL THE OPTIMUM DISTORTION HAS BEEN
A . SET THE SIGNAL GENERATOR AND UNIT UNDER TEST TO 98MHZ FM MODE,
60 dBuV .
B . ADJUST SFR402 UNTIL THE LAST SEGMENT OF THE SIGNAL METER JUST
LIGHTS UP .
A . SET THE SIGNAL GENERATOR AND UNIT UNDER TEST TO .98MHZ FM MODE,
60 dBuV, LEFT ONLY MODULATION .
B . MONITOR THE OUT OF THE RIGHT CHANNEL TAPE 2 .
(FIG 8)
C . ADJUST SFR403 FOR MINIMUM SIGNAL .