Mechanical Adjustment; The Number And Position Of Test Point; Ace Head Position (X-Point) Adjustment - Sony SLV-D900E Service Manual

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6-2 Mechanical Adjustment

Note : Refer to the Mechanical Manual "TS-10 (P/N : 9-921-790-11)" for the adjustment and confirmation of ass'y

full deck.

Test point :

W568 (Audio Output)

W569 (Envelope)

W570 (H'D S/W -Trigger)

W571 (Control Pulse)

(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 "TEST" botton on F/Timer PCB to set the

adjustment mode. (See Fig. 6-2)

3) Press the "5" button of remote control then

adjustment is operated automatically. (See Fig. 6-1)

CONTROL PULSE

HEAD SWITCHING

ENVELOPE

AUDIO OUTPUT

Fig. 6-3 Location of Test point (VCR Main PCB-Top View)

6-3

4) Connect the CH-1 probe to W569 (Envelope) the

CH-2 probe to W570 (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.

6) Turn the Power off.

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