Table of Contents
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Use the
table as a guide to maintain the mechanical parts in good operating condition.
Guide roller ass'y
Sup Guide Shaft
Retaining guide
Slant pole
Upper and lower drum
Full-erase head
A/C head
Capstan D.D. Motor
Pinch roller
Drive belt
Tension band ass'y
Loading Motor
Idler Wheel ass'y
Limiter pulley ass'y
Supply/take-up Main brake levers
NOTE:
If the reading is out of the specified value, clean or replace the part.
Possible symptom encountered
q
q
q
0
q
Lateral noises Head occasion-
ally blocked
q
q
q
q
q
0
Poor S/N ratio, no colour
Poor flatness of the envelope with
alignment tape
q
q
0
Poor colour, beating
q
q
q
0
Low or distorted audio
q
q
q
No tape running, uneven colour
q
q
No tape running, tape slack
0
N
q
O
fast forward/rewind motion
0
Cassette not loaded or unloaded
0
No tape running
D
A
0
0
0
tape
tape slack, no cleaning liquid
Remarks
Abnormal rotation or significant
vibration requires replacement.
Clean tape contact part with
the specified cleaning liquid.
Clean tape contact area with
the specified cleaning liquid.
Clean rubber and rubber con-
tact area with the specified
Replace the roller of the cleaner
when it wears down.
Just change the AHC roller
assembly for new one.
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