Daewoo K3050MECHA service manual Adjustment of the A/C Head Assy Tilt Adjustment

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 ¤æin 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).

TURN THE A/C HEAD TILT

SCREW TO THE DIRECTION

OF CW

( )

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

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

(TILT ADJUSTMENT)

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

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.

GAP

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

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