JMECHA - Sony VCR Service Manual (repair manual). Page 19

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1)

Remove the drum referring to section 3-1.  Install the dummy
drum (Ref. No. J-9).

2)

Install the TG36 gauge (Ref. No. J-10) on top of the dummy
drum.  Adjust the slant of the TG6 guide.

3)

Rotate the slant adjustment zenith screw until the TG6 guide
and TG36 gauge (Ref. No. J-10) become parallel.

4)

Remove all the jigs.  Attach the original drum back in its original
position referring to section 3-1.

5)

Clean the TG5 and TG6 guides referring to section 2-2.

6)

Perform tape path adjustment.  (Refer to section 4, “Tape Path
Adjustment”.)

1)

Loosen the LS cam fixing screw (M1.4 

×

 4) 1 by 180 degrees.

2)

Establish the [STOP] mode.

3)

While pressing down the center of the LS chassis block assy
with force of 100 to 200 gf (0.98 to 1.96 N), move the LS cam
plate toward the S-reel side and tighten the LS cam plate fixing
screw (M1.4 

×

 4) 1 with force of 500 to 1000 gf (4.9 to 9.8

N).
Tightening torque: 0.059 to 0.01 N•m (0.6 kg•cm).