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Text excerpt from page 7 (click to view)
Alignment and Adjustment
2-2 Mechanical Adjustment
Note : Refer to the Mechanical Manual âDX-9R (AC68-00001A)â for the adjustment and confirmation of assây full deck.
2-2-1 The number and position of test point
Test point : TP601 (Control Pulse) TP602 (HâD S/W -Trigger) TP301 (Envelope) TP302 (Audio output) TP303 (Video output)
AUDIO OUTPUT ENVELOPE HEAD SWITCHING
Fig. 2-3 Location of Test point (Main PCB-Top View)
2-2-2 ACE Head Position (X-Point) Adjustment
(See the 2-2-1(d) ACE Head Position (X-Point) Adjustment on page 2-2 of the Mechanical Manual) 1) Playback the alignment tape (Color bar). 2) Press the âSW718 (TEST)â button on Main PCB to set the adjustment mode. (See Fig. 2-2) 3) Press the â5â button of remote control then adjustment is operated automatically. (See Fig. 2-1)
4) Connect the CH-1 probe to TP301 (Envelope) the CH-2 probe to TP602 (HâD 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. 6) Turn the Power off.