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VL-E630U/T
VL-E680U
VL-E685U/T
5. MECHANISM ADJUSTMENT
5-2. Items and timings of inspection and maintenance
5-2-1. Inspection and maintenance list
Checking/Maintenance point
Tape travelling route
(Refer to Section)
Drum (Refer to Section)
Video head
Timing belt
Pinch roller
Capstan D.D. motor
Relay Pulle shaft
Pulle gear shaft
Drive gear shaft
Loading motor
Abnormal sound
PB/VS-REW take-up torque
PB/VS-REW back tension
torque
Tu brake
HC (Head Cleaner)
Oil:
Grease: MORYCOAT YM-103/X5-6020
Screw locking agent: THERE BOND 1401B
Cleaning liquid: Industrial-use ethyl alcohol
5-4. ADJUSTMENT OF MECHANISM TAPE TRAVEL SYSTEM
5-4-3. Adjusting the Si roller height
(2) Adjusting the Si roller
1 Playback the tape such to set the V/SR mode.
Usage time (hrs.)
500 1,000 1,500 2,000 3,000
∆
∆
∆
∆
: Replace.
: Clean.
4
Possible symptom
encountered
• Lateral noise
• Unclean head
• Screen shaking
• Improper S/N ratio
• No color appears.
• Tape does not run.
• Tape slackens.
• Screen shakes.
∆
• Abnormal sound
∆
• Not ejectable
• The specific mode can-
not be set.
∆ : Apply oil.
: Check.
Remarks
Rollers
• If abnormal rotation or
deflection (signifi-
cant) is found, replace
the roller.
Other than rollers
• Clean the tape con-
tacting areas. Be sure
to use the specified
cleaning agent.
• Replace if failure is
found.
• Apply oil.
(Oil:
)
Note:
After oil is applied to
the drive gear shaft,
slightly wipe it off with
swab.
• Replace if failure (ab-
normal sound) is de-
tected.
• If conformance to the
standard is not en-
sured, replace part.
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