Nakamichi 481 Service Manual - page 29

5.3. 

Record Head and Playback Head Tilt Adjustment 

Note:  On items 5.3 — 5.8, please refer to Fig. 5.4 flow 

chart. 

Refer to Figs. 5.5 and 5.6. 

(1)  Load a Tilt Check Gauge M-9039 (DA09039A) in the 

N-481. 

(2)  Clip the grounding terminal of the Tilt Check Gauge 

with one end of the cord with clip, and the other end to 

the chassis of the N-481. 

(3)  Remove both of the Height Gears. 

(4)  Set the N-481 in play mode. Check to insure whether 

the Beacons Playback Head “Upper” or “Lower” and 

Record Head “Upper” or “Lower” are illuminating. In 

order not to give damages onto the head surfaces, 

push both of slide knobs of the Gauge to the direction of 

arrow marks, then return it to the original place to be in 

contact with record head and play back head surfaces 

after play mode is securely locked. 

(5) Check to insure freedom from contact between the 

Gauge and pad lifter. 

(6)  Beacon Playback Head “Lower” will light on when 

height adjustment screw (P) turned clockwise but 

Playback Head “Upper” when counterclockwise. Adjust 

so that both “Upper” and “Lower” will light on even 

when you move the slide knob to the direction of an 

arrow mark and then return it to the original place. 

(7)  Same procedures will apply to the Beacons Record 

Head “Upper” and “Lower”, except for the height 

adjustment screw (A). 

(8)  Set the N-481 in stop mode and fit both of the ser rated 

height gears. Then set the N-481 again in play mode 

and insure all of the 4 Beacons are illuminating. If not, 

(3) through (7) will have to be repeated till satisfactory 

results are obtained.