Daewoo K3050MECHA User Manual

Page 30

B. ADJUSTMENT OF THE A/C HEAD ASS'Y

(TILT ADJUSTMENT)

a. Play back a T-120 Tape and check the running condition of

the TAPE at the lower flanges of the T GUIDE POST
ASS'Y

¤æ

in Fig. 5-1.

b. Adjust the A/C HEAD TILT SCREW untill the TAPE runs

stable as shown in Fig. 5-2

C. ADJUSTMENT OF THE AUDIO AZIMUTH

(See Fig.5-3)

a. Play back the ALIGNMENT CASSETTE TAPE

(NTSC: DN2 (SP, 7KHz), PAL: DP2 (SP, 6KHz))

b. Observe audio signals on an OSCILLOSCOPE.
c. Turn the A/C HEAD AZIMUTH SCREW to obtain the

maximum audio output signal (-9~-3dBm).

D. THE HEIGHT ADJUSTMENT OF A/C

HEAD

a. Play back a T-120 TAPE.
b. Make sure that the gap is 0.25mm between the lower end of TAPE and that of A/C HEAD.
c. When the gap is longer than 0.25mm, turn the A/C HEAD HEIGHT ADJUST NUT counter-clockwise.

When the gap is shorter than 0.25mm, turn it clockwise.
Repeat this procedure untill 0.25mm is obtained.

( )

Fig. 5-2 A/C HEAD ASS'Y ADJUSTMENT

(TILT ADJUSTMENT)

Fig. 5-3 A/C HEAD ASS'Y

GAP

Fig. 5-4 A/C HEAD ASS'Y ADJUSTMENT (HEIGHT ADJUSTMENT)

TURN THE A/C HEAD TILT
SCREW TO THE DIRECTION
OF CW

TURN THE A/C HEAD TILT
SCREW TO THE DIRECTION
OF
CCW