SLV-ED225PS, SLV-ED323ME, SLV-ED323SG, SLV-ED825PS, SLV-ED828ME, SLV-ED828SG, SLV-ED925PS, SLV-ED929MI, SLV-EZ121AZ, SLV-EZ424AZ, SLV-EZ725AZ, SLV-EZ727AZ - Sony VCR Service Manual (repair manual). Page 52

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5-5
Fig. 5-5 Location of Test point (Main PCB-Top View)
AUDIO OUTPUT
HEAD SWITCHING
ENVELOPE
  
Test point :
TP602 (H’D S/W -Trigger)
TP301 (Envelope)
TP302 (Audio output)
5-2 MECHANICAL ADJUSTMENT
Note : Refer to the Mechanical Manual  for the adjustment and confirmation of ass’y deck.
5-2-1 The number and position of test point
5-2-2 ACE Head Position (X-Point) Adjustment
(See the 5-2-1(d) ACE Head Position (X-Point) Adjustment on
page 5-2 of the Mechanical Manual)
1) Playback the alignment tape (Color bar).
2) Press the “TEST” button on Main PCB/Function PCB to set
the adjustment mode.
    (See Fig. 5-2, 5-3 and 5-4)
3) Press the “5” button of remote control then adjustment is op-
erated automatically. (See Fig. 5-1)
4) Connect the CH-1 probe to TP301 (Envelope) the CH-2
probe to TP602 (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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