Samsung SV-DVD340/DVD540ASV-DVD545 Service Manual page 19

d. ACE HEAD POSITION (X-POINT) ADJUSTMENT
1) Playback the alignment tape (Color bar)
2) Press the "TEST" botton on VCR MAIN PCB to set the adjustment mode. (See Fig. 2-2)
3) Press the "0, 5" remote control buttons, then adjustment is operates automatically. (See Fig. 2-1)
4) Connect the CH-1 probe to "Envelope" the CH-2 probe to "H'D switching pulse" and then trigger to CH-1.
5) Insert the (-) driver into the X-Point adjustment hole and adjust it so that envelope waveform is maximum.
Test point : W325 (Audio Output)
W324 (Envelope)
W323 (H'D S/W -Trigger)
W322 (Control Pulse)
Samsung Electronics
AUDIO OUTPUT
ENVELOPE
HEAD SWITCHING
CONTROL PULSE
Fig. 2-13 Location of Test point (VCR Main PCB-Top View)
Alignment and Adjustments
2-11