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Verfügbare Sprachen
Verfügbare Sprachen
1-4. V3 Mechanism Check Method
If the abnormal condition is caused by the mechanism
itself, analyze the cause according to the following
procedures.
1-4-1. External Appearance Check
(1) Check whether there are foreign matters or not inside
the VTR.
(2) Check whether the cylinder and the guides for tape
transport system are contaminated.
1-4-2. Motor Sensor System Check
Check whether some abnormalities are found in the motor
or the sensor system (including control circuits) according
to the flow chart.
The clearance of Ais allowable if it is within 3mm.
Cam gear
Fig. 4-1-1
1-4-3. Abnormality Analysis by Self-check
Note:
Coes fia adie aaslor
=
puncton
+ Abnormal data is displayed only when the first
rotate without a cassette after
eed ale
:
The unit used V3 mechanism has a self-check function.
abnormal condition occurs, and is not displayed in the
turning, the pewwer. ON?
;
The self-check function works as a system which stored
second time. Accordingly, the claim from customers
some abnormal condition. So, use this function to try to
and the actual data displayed may be different.
For the data display method and the content of the data,
occurring the abnormality condition(s). The data is not
refer to the self-check function (described on page 2-48)
stored when the unit operation is recovered by the
in item 2-2.
microcomputer.
Does the cam gear angle
is made at standby position?
{COUNTER RESET] button while displaying the
abnormal! mode.
The typical examples in abnormal condition are shown
below.
Table 4-3-1
After releasing
the lock lever, EJECT ope-
ration is performed soon alter
pushing the cassetie
hoider?
Cylinder is stopped at playback position during
playback the tape.
Cylinder is stopped at FF/REW position during rewind
Check the cylinder motor.
Check
if the cylinder and tape transport guide
as
nm
f2
ag
T reel sensor is abnormal at playback postion during
playback the tape.
Check the capstan motor.
:
i
A
ii
efer to the case 1 described
on
the
table
during the above operation ?
A: System control mode, B: Abnormality No., C: Mechanical position when an abnormality occurs.
1-4-4. Check by Defective Analyzing List
+ As for the part(s) requiring lubricant such as a
If the abnormality causes the mechanism abnormal condi-
specified amount of oil or grease, apply grease or oil
tion, presume, confirm and treat the defective according
according to the instructions and do not stick grease or
Absit dco
to the "Defective analyzing list" in table 4-4-1.
oil to he portions without allowing to stick it (espe-
the T reel table rotate when
(1) Manual mechanism operation (mode shift) method
cially in removal and assembly).
the cassette hoider goes down and
does the S reel tabie rotate
(3) Check after treating the defective
when the cassette
Push in the lock lever R and L manually and turn the
th
is the cassette stopped at [ne
out rewinding
or
2-5
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