Daewoo VCR MECHANISM UNIT service manual Adjustment of the Audio Azimuth, Position

ADJUSTMENT OF THE TPAE TRANSPORTING SECTION. (CONTINUED)

K.Adjustment of the AUDIO AZIMUTH

Test Point	AUDIO OUTPUT	AUDIO OUTPUT JACK
Measurement Equipment	AUDIO LEVEL METER

a.Connect the AUDIO output JACK with an AUDIO LEVEL METER.

b.Play back the ALIGNMENT TAPE(DN-2:MONO- SCOPE 7KHz Signal).

c.Check if the AUDIO output signal level is over : -9 ~- 3dBm.

d.If the requirement of “c” is not satisfied, readjust the AZIMUTH SCREW of the AC HEAD until the AUDIO output is maxized.(Fig. 5.4)

e.Repeat the Process of “Adjustment of the wave form of

DRUM Entrance/Exit”

L. X-POSITION

Test Point	S/W PULSE TEST PIN	PATH ADJ. FIXTURE
	ENVELOPE TEST PIN	PATH ADJ.FIXTURE
Measurement Equipment	OSILLOSCOPE
Adjustment	VR CONTROL	PATH ADJ.FIXTURE
	S/T GHIDE ROLLER	TAPE TRANSMISSON SECTION

a.Connect the PT01 on the MAIN CIRCUIT BOARD with a PATH ADJ.FIXTURE.

b.Play back an ALIGNMENT TAPE(DN-2: MONO- SCOPE Signal).

c.Connect theS/W PULSE TEST PIN on the PATH ADJ.FIXTURE with a CHANNEL-1 SCOPE PROBE.

d.Connect the VIDEO OUT on the MAIN CIRCUIT BOARD with a CHANNEL-2 SCOPE PROBE(1V/div)

e.Check if the ENVELOPE is maximum when the VR CONTROL on the PATH ADJ. FIXTURE is in CEN- TER.

f.If the requirement “e” is not satisfied, readjust the X- POSITION by referring to subitem “E”(Adjustment of the X-POSITION).

g.Repeat the process of subite, “F(PLAYBACK PHASE ADJUSTMENT).

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