5.2 MECHANICAL ADJUSTMENT PROCEDURE

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No.
Item
Equipment
Fig.
Procedure
1
Confirmation of Tape Running
1. Alignment Tape
(PAL: VFM3110EDS/NTSC: VFM3010EDS)
2. Post Adjustment Driver(VFK1278)
Fig. AD1-1
1) Confirm each post position in playback mode.
Fig. AD1-2
2) Confirm condition of tape regulation in playback & review mode.
2
Linearity Adjustment
1.Tatsujin system(Refer to Fig.)
Fig. AD2-1
1) Set up Tatsujin System.
2. Alignment Tape
(PAL: VFM3110EDS/NTSC: VFM3010EDS)
3. Envelope Detecor Board (VFK1641)
4. Post Adjustment Driver (VFK1278)
Fig. AD2-2
2) Connect Envelope Detector Board between Measuring Board & Oscilloscope.
--
3) Remove Adjustment Cover.
* Location for Adjustment Cover depends on Models.
Fig. AD2-3
4) Playback the Alignment Tape and adjust S2 & T3 posts by Screw Driver until wavefom becomes flat.
After adjustment, B.E.R. should be confirmed by Electrial adjustment on the "Tatsujin".
3
Confirmation of B.E.R. Value
1.Tatsujin system(Refer to Fig.)
Fig. AD2-1
1) Refer to Electrical Adjustment on the "Tatsujin".
4
Capstan tilt Adjustment
1. Capstan Tilt Adj. Jig(VFK1638)
2. Small Phillips Screw Driver
Fig. AD4-1
1) Slide sensor pin to Capstan shaft.
After touching,if OK, LED should be lit.
* Do not touch when you confirm LED lit or not.
Fig. AD4-2
2) If Ng, Capstan tilt should be adjusted.
  a) Tighten screw (A) until LED is lit.
  b) Loose screw (B) until LED is not lit.
  c)Tightenscrew (A) unti-clockwise until LED is lit .
5
S3 Base adjustment
1. Post Adjustment Driver(VFK1278)
Fig. AD5-1
1) Adjust S3 screw as Evvelope becomes flat.
Fig. AD5-2
2) Tighten a screw 180 degree as "ENV 1".
3) Loosen a screw as ENV 2.
4) Tighten a screw until ENV becomes flat as ENV 3 and tighten a screw 180 degree again.
6
Sub Chassis Adjustment
1. Small Phillips Screw Driver
Fig. AD6-1
1) Make Review Position.
* Set Loading mode and then,stop Pinch Roller & Capstan shaft is touched.
Fig. AD6-2
2) Loosen a screw.
After fixing a shaky Sub Chassis,then tighten a screw.

Fig. AD1-1

Fig. AD1-2

Fig. AD2-1

Fig. AD2-2

Fig. AD2-3

Fig. AD4-1

Fig. AD4-2

Fig. AD5-1

Fig. AD5-2

Fig. AD6-1

Fig. AD6-2


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