beautypg.com

L. x-position (see fig. 5-11) – Daewoo K3050MECHA User Manual

Page 37

background image

36

L. X-POSITION (See Fig. 5-11)

a. Connect the PATH ADJ. FIXTURE to PT01 of the MAIN CIRCUIT BOARD.
b. Play back the ALIGNMENT TAPE (COLOR SIGNAL BAR).
c. Connect the channel-1 scope probe to the S/W PULSE TEST PIN of the of the PATH ADJ. FIXTURE.
d. Connect the channel-2 scope probe to the ENVELOPE TEST PIN of the PATH ADJ. FIXTURE.
e. Adjust the VR CONTROL to the center position. (When the VR CONTROL is completely turned counter-

clockwise, it is set at another tracking center position).

f. When the VR CONTROL is fully rotated clockwise or counter-clockwise, turn the ADJUST BOSS of the

MAINBASE and adjust the X-POSITION for the envelope waveform to be as shown in Fig. 5-11

g. Repeat the process "F. PLAYBACK PHASE ADJUSTMENT".

TEST POINTS

S/W PULSE TEST PIN

PATH ADJ. FIXTURE

ENVELOPE TEST PIN

PATH ADJ. FIXTURE

MEASURING EQUIPMENT

OSCILLOSCOPE

ADJUSTMENT

VR CONTROL

PATH ADJ. FIXTURE

ADJUST BOSS

MAIN BASE.

Fig. 5-11 X-POSITION ADJUSTMENT