MAINTENANCE/INSPECTION PROCEDURE
2. Required Maintenance4. Supplies Required for Inspection and
The recording density of a VCR(VCP) is much higher thanMaintence
that of an audio tape recorder. VCR(VCP) components must(1) Grease : Kanto G-311G (Blue) or equivalent
be very precise, at tolerances of 1/1000mm, to ensure com-
(2) Isopropyl Alcohol or equivalent
patibility with the other VCRs. If any of these components are(3) Cleaning Patches
worn or dirty, the symptoms will be the same as if the part is
(4) Grease : Kanto G-381(Yellow)
defective. To ensure a good picture, periodic inspection and
maintenance, including replacement of worn out parts and
5. Maintenance Procedure
lubrication, is necessary.
5-1) Cleaning
3. Scheduled Maintenance
(1) Cleaning video head
Schedules for maintenance and inspection are not fixedFirst use a cleaning tape. If the dirt on the head is too
because they vary greatly according to the way in which thestubborn to remove by tape, use the cleaning patch. Coat
customer uses the VCR(VCP), and the environment in whichthe cleaning patch with Isopropyl Alcohol. Touch the
the VCR(VCP) is used.cleaning patch to the head tip and gently turn the
But, in general home use, a good picture will be maintainedhead(rotating cylinder) right and left.
if inspection and maintenance is made every 1,000 hours.(Do not move the cleaning patch vertically. Make sure
The table below shows the relation between time used andthat only the buckskin on the cleaning patch comes into
inspection period.contact with the head. Otherwise, the head may be dam-
Table 1aged.)
Thoroughly dry the head. Then run the test tape. If lso-When
inspection ispropyl Alcohol remains on the video head, the tape may
About 1necessaryAbout 18About 3
yearyearsbe damaged when it comes into contact with the headmonths
surface.
Average(2) Clean the tape transport system and drive system, etc, by
hours usedwiping with a cleaning patch wetted with Isopropyl
per day
Alcohol.
One hour
NOTES:
1 It is the tape transport system which comes into contactTwo hours
with the running tape. The drive system consists of those
parts which moves the tape.
Three hours2 Make sure that during cleaning you do not touch the tape
transport system with excessive force that would cause
deformation or damage to the system.
Drum
(Rotating Cylinder)
Cleaning Patch
Head Tip
Touch this section of cleaning
Coat With Isopropyl Alcoholpatch to the head tip and gently
turn the Drum (Rotating Cylinder)
Fig. C-9-4
4-20 |
ACEC
