2-14
No Good
Good
No Good
2. HEIGHT ADJUSTMENT OF P5 ARM
UNIT
Purpose :
To properly align the Phase and Speed Controls during the
CUE/REVIEW Modes and perform the CUE/REVIEW
operations without any small additional noise in the
picture.
Symptom of Misadjustment :
1) Noticeable noise appears in the picture.
2) The tape will eventually be damaged.
*Equipment Required :
Post Adjustment Plate .............................. (VFKS0010)
Reel Table Height Fixture ......................... (VFKS0009)
Nut Driver (5.5mm) ............................ Purchase Locally
*Specification ......................................... 0 (+0, -0.06) mm
Fig. M11-4
1. Place the Post Adjustment Plate over the Reels, and put
the Fixture on it. Set the Fixture to zero (“0”) when the foot
just touches the Post Adjustment Plate.
2. Slightly raise the P5 post above the plate by turning the
5.5mm Nut counterclockwise. Place the foot on the post as
shown in Fig. M11-4.
3. Then slowly turn the 5.5mm Nut clockwise until the fixture
reads the specified height.
4. Remove the Post Adjustment Plate. Reinstall the Cassette
Up Ass'y and the cabinet parts.
Note:
Upon completion of the above procedure, play back the
tape and confirm that the tape runs properly without
curling between the lower and upper limits of the P5 Post.
Also confirm that the tape is running smoothly.
If adjustment is required, slightly turn the 5.5mm Nut until
the curling smooths out.
VFKS0009
VFKS0010
P5 Arm Unit
5.5mm Nut
0 (+0, -0.06)mm
TAPE INTERCHANGEABILITY
ADJUSTMENT (FINAL ADJUSTMENT)
Note :
To perform these adjustment/confirmation procedures,
set Tracking to the Neutral position.
*Equipment Required :
Dual Trace Oscilloscope
VHS Alignment Tape ............................. (VFMS0001H6)
Post Adjustment Screwdriver ....................... (VFK0329)
H-Position Adjustment Screwdriver .......... (VFKS0082)
1. CONFIRMATION OF TAPE TRAVEL
Purpose :
To be sure that the tape runs smoothly.
Symptom of Misadjustment :
If the tape travels with instability, the tape will be damaged.
1. Play back a T120 cassette tape and confirm that the tape
travels without curling at the upper and lower guides on
posts P2 and P3.
Fig. M12
2. If curling is apparent, adjust the height of the posts by turning
the top of the post with the Post Adjustment Screwdriver (for
P2 & P3).
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