Sharp VL-E610S Service Manual page 17

4-2. Items and timings of inspection and maintenance
The mechanism of VCR needs the following periodic inspection and maintenance in order that it maintains its high quality. Also,
after the machine is repaired, execute the following maintenance and checks regardless of how long it has been used.
4-2-1. 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: COSMOHYDRO, HV100
Grease: MORYCOAT YM-103/X5-6020
Screw locking agent: THERE BOND 1401B
Cleaning liquid: Industrial-use ethyl alcohol
Usage time (hrs.)
500 1,000 1,500 2,000 3,000
∆ ∆
∆ ∆
: Replace.
: Clean.
4-3
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.
VL-E610S/VL-E610H
VL-E660S/VL-E96E
VL-E98E
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: COSMOHYDRO
HV100)
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.