5.2 MECHANICAL ADJUSTMENT PROCEDURE
No. Item Equipment Fig. Procedure
Fig.
AD1-1
1) Confirm each post position in playback mode. 1 Confirmation of Tape
Running
1. Alignment Tape
(PAL: VFM3110EDS/NTSC:
VFM3010EDS)
2. Post Adjustment
Driver(VFK1278)
Fig.
AD1-2
2) Confirm condition of tape regulation in playback & review
mode.
1.Tatsujin system(Refer to Fig.) Fig.
AD2-1
1) Set up Tatsujin System.
Fig.
AD2-2
2) Connect Envelope Detector Board between Measuring Board &
Oscilloscope.
-- 3) Remove Adjustment Cover.
* Location for Adjustment Cover depends on Models.
2 Linearity Adjustment
2. Alignment Tape
(PAL: VFM3110EDS/NTSC:
VFM3010EDS)
3. Envelope Detecor Board
(VFK1641)
4. Post Adjustment Driver
(VFK1278)
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".
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.
4 Capstan tilt
Adjustment
1. Capstan Tilt Adj. Jig(VFK1638)
2. Small Phillips Screw Driver
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 .
Fig.
AD5-1
1) Adjust S3 screw as Evvelope becomes flat. 5 S3 Base adjustment 1. Post Adjustment
Driver(VFK1278)
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.
Fig.
AD6-1
1) Make Review Position.
* Set Loading mode and then,stop Pinch Roller & Capstan shaft is
touched.
6 Sub Chassis
Adjustment
1. Small Phillips Screw Driver
Fig.
AD6-2
2) Loosen a screw.
After fixing a shaky Sub Chassis,then tighten a screw.
Fig. AD1-1
Fig. AD1-2
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