27
27DV-S100
27DV-CS10
MAINTENANCE CHECK ITEMS AND EXECUTION TIME
Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine.
NOTE : Part replacement. : Cleaning : Apply grease
<Specified> Cleaning liquid Industrial ethyl alcohol
Maintained
Parts
Remarks
Ref.No.
500
hrs.
1000
hrs.
1500
hrs.
2000
hrs.
Possible symptom
encountered
Guide roller ass’y
Sup guide shaft
Reverse guide
Slant pole on pole base
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
AHC
(Automatic Head Cleaner)
49
—
19
7,8
58
59
63
61
12
34
1
60
46
48
24,25
26
Colour and beating
Small sound or sound
distortion
No tape running,
uneven colour
No tape running, tape
slack
No tape running, tape
slack, no fast forward/
rewind motion
Lateral noises Head
occasionally blocked
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.
Replace the roller of the
cleaner when it wears down.
Just change the AHC roller
assembly for new one.
Screen swaying
Cassette not loaded or
unloaded
No tape running, tape
slack
Tape slack
Clean rubber and rubber
contact area with the specified
cleaning liquid.
Poor S/N ratio, no
colour Poor flatness
of the envelope with
alignment tape
* This mechanism does not need electric adjustment with variable resistor. Check parts. If any deviation is found,
clean or replace parts.
Gently press the cleaning paper to
fix with your finger, and rotate the
upper drum to clean.
Move to and for 5 times for each head.
(Do not move the cleaning paper.)
Rotate the upper drum
with one hand.
Video head cleaning procedure
1. Apply one drop of cleaning liquid to the cleaning paper with the baby oiler.
2. Gently press the cleaning paper against the video head to fix your finger, and move the upper drum so that each
head is passed to and for 5 times (do not move the cleaning paper).
3. Wipe with the dry cleaning paper.
Notes :
• Use the commercially available ethanol of Class 1 as
cleaning liquid.
• Since the video head may be damaged, do not move
up and down the cleaning paper.
• Whenever the video head is cleaned, replace the
cleaning paper.
• Do not apply this procedure for the parts other than
the video head.
Parts Code Description
ZPAPRA56-001E Cleaning Paper
ZOiLR-02-24TE Babe Oiler (Spoit)