Sony SLV-D910AZ Service Manual

Contents

6-10d. ACE HEAD POSITION (X-POINT) ADJUSTMENT1) Playback the alignment tape (Color bar)2) Intermittently short-circuit the two Test Points on VCR Main PCB . (See Fig. 6-2)3) Press the “0, 5” remote control buttons, then adjustment is operates automatically. (See Fig. 6-1)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: W568 (Audio Output)W569 (Envelope)W570 (H’D S/W -Trigger)W571 (Control Pulse)AUDIO OUTPUTCONTROL PULSEHEAD SWITCHINGENVELOPEFig. 6-13 Location of Test point (VCR Main PCB-Top View)