Sharp VC-90ET

VC-90ET
MECHANICAL PARTS REQUIRING PERIODICAL INSPECTION
Use
the
following
table
as
a
guide
to
maintain
the
mechanical
parts
in
good
operating
condition.
Maintained 500 | 1000
Guide roller ass‘y
Abnormal rotation or
significant vibration
requires replacement.
Clean with pure high
quality isopropyl
alcohol.
Supply impedance roller
ateral noises
Head occasionally
blocked
Supply impedance roller
(inner)
Supply impedance roller
flange
Retaining guide
Slant pole
Clean tape contact area
with the specified
cleaning liquid.
Video head
Poor color,
beating
Sound too small or
distorted
No tape running,
uneven color
No tape running,
tape slack
No tape running,
tape slack, no fast
forward/rewind
Full-erase head Clean tape contact area
with the specified
cleaning liquid.
A/C head
Capstan D.D. Motor
fem |
| za
Poor S/N ratio, no
El eee
Pinch roller ar ea
Clean rubber and
rubber contact area
with the specified
cleaning liquid.
Reel belt
Cassette not
loaded or
unloaded .
Loading belt/Cassette
loading belt
Tension band ass'y
Cassette not
loaded or
unloaded
Loading motor
Replace the roller o
the cleaner when it
wears down. Just
change the video head
cleaner arm assembly
AHC (Automatic Head
Cleaner)
for new one.
ial
below
ae
le
[04 |
Reel block*
*See the table below for servicing the reel block parts.
Supply/Take-up reel disks
i
No
tape
running,
ean
with
pure
hig
;
tape
Sack
°
auallty
isopt
opyl
Main
supply/take-up
brake
levers
Tape slack
Video search brake lever
Idler gear ass'y
No tape running
Reel
Pulley
Saas
NOTE: O: Partreplacement.
O: Cleaning (For cleaning, use a lint-free cloth dampened with pure isopropyl! alcohol).
A:
Oilrefilling
(The
indicated
point
should
be
lubricated
with
high
quality
spindle
oil
every
1000
hrs).
This
model
has
no
adjusting
parts
for
torques,
tensions,
etc.
If
the
reading
is
outside
the
specified
range,
cleanor
replace
the
part.