Sharp VC-MH80 Service Manual page 12

VC-MH80
MECHANICAL PARTS REQUIRING PERIODICAL INSPECTION
Guide roller ass' y
Supply impedance roller
Supply impedance roller
(inner hole and shaft)
Supply impedance roller flange
Retaining guide
Slant poie
Drum ass' y
Full-erase head
Capstan D.D. Motor
Pinch roller
Reel belt
Tension band ass' y
Loading Motor
Reel idler ass' y
Reel pully ass' y
Clutch gear ass' y
Main supplyrtake-up brake levers
AHC (Automatic Head Cleaner)
NOTE:
If the reading is out of the specified value, clean or replace the part.
500 1000
1 5 0 0 2 0 0 0
q 0
q 0
q
q
q q q q
q q q
q q 0
0
0 0 q
Cl
q q q 0
q q 0
0
q q 0
q 0
0
0
0
q O
0
0
0 0
12
Lateral noises
Head occasionally.blocked
Poor S/N ratio, no colour, poor
flatness of the envelope with
alignment tape
Poor colour, beating
Sound toosmall or distorted
No tape running, uneven colour
No tape running, tape slack
No tape running, tape slack, no
fast forward/rewind motion
Cassette not loaded or unloaded
No tape running
T a p e s l a c k
Abnormal rotation or
significant vibration
requires replacement.
Clean with pure high
quality isopropyl alcohol.
Clean tape contact part
with the specified cleaning
liquid.
with the specified cleaning
liquid.
Clean rubber and rubber
contact area with the
specified cleaning liquid.
cleanerwhen itwears
down.
Just change the AHC roller