Sharp 13VT-R100 Service Manual page 22

13VT-R100/R150
13VT-CR10
MAINTENANCE CHECK ITEMS AND EXECUTION TIME
Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine.
Maintained 500
Parts
Guide roller ass'y
Sup Guide Shaft
Retaining guide
Slant pole
Full-erase head
A/C head
Upper and lower drum ass'y
Capstan D.D. Motor
Pinch roller
Reel belt
Tension band ass'y
Loading Motor
Idler ass'y
Limiter pulley
Supply/take-up Main brake levers
NOTE: : Part replacement.
<Specified> Cleaning liquid Industrial ethyl alcohol
* This mechanism does not need electric adjustment with variable resistor. Check parts. If any deviation is found,
clean or replace parts.
1000 1500 2000 3000
hrs. hrs. hrs. hrs. hrs.
: Cleaning : Oil refilling
22
Possible symptom
encountered
Abnormal rotation or significant vi-
bration requires replacement.
Lateral noises Head
Clean tape contact part with
occasionally blocked
the specified cleaning liquid.
Color and beating
Small sound or sound
distortion
Clean tape contact area with
Poor S/N ratio, no color
the specified cleaning liquid.
Poor flatness of the enve-
lope with alignment tape
No tape running, uneven
color
No tape running, tape
Clean rubber and rubber
slack
contact area with the
No tape running, tape
specified cleaning liquid.
slack, no fast forward/
rewind motion
Screen swaying
Cassette not loaded or
unloaded
No tape running, tape
slack
Tape slack
Remarks