Daewoo K3050MECHA service manual Audio Output A/C Head Tilt & Height Adjustment

J. AUDIO OUTPUT (A/C HEAD TILT & HEIGHT ADJUSTMENT)

TEST POINTS

AUDIO OUTPUT

AUDIO OUTPUT JACK

MEASURING EQUIPMENT

OSCILLOSCOPE

a. Connect the OSCILLOSCOPE to the AUDIO OUTPUT JACK.

b. Play back the ALIGNMENT TAPE (NTSC: DN1 (SP, 1KHz), PAL: DP1 (SP, 1KHz)). c. Check the AUDIO OUTPUT SIGNAL is -9~-3dBm.

d. If the requirement "c" is not satisfied, adjust the A/C HEAD TILT SCREW and A/C HEAD HEIGHT NUT to obtain the maximum audio output. (Fig. 5-3)

K. A/C HEAD AZIMUTH ADJUSTMENT

a. Connect the OSCILLOSCOPE to the AUDIO OUTPUT JACK.

b. Play back the ALIGNMENT TAPE (NTSC: DN2 (SP, 7KHz), PAL: DP2 (SP, 6KHz)).

c. Adjust the A/C HEAD AZIMUTH SCREW to obtain the audio output -9~-3dBm. (Fig. 5-3) d. Repeat the process "H. DRUM ENTRANCE/EXIT".

TEST POINTS

AUDIO OUTPUT

AUDIO OUTPUT JACK

MEASURING EQUIPMENT

OSCILLOSCOPE

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