Teac FD-55 Series, Руководство по обслуживанию

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TP4 (Index)
TP7 or TP8
Index burst delay
(Fig,435) Index burst timing
Index burst timing (true value)»Measured value - Calibration value(ys)
(g) Confirm that the true value of the index burst timing is within the
following range.
FD-55A ^ Fr 20Q±2QQysec
FD-55G : 165±165ysec
(h) If the value in item (g) is out of the specified range, adjust the
index sensor Ass'y position according^ to.the following procedure.
i) Loosen the fixing screws (see Fig.436) of the PCBA front OPT and
adjust its position to make the true value of the index burst
timing fall in the specified range in item (g) .
ii) Repeat the adjustment so that the true value of the index burst
timing falls in the range of item (g) when the fixing screw has
been tightened with the specified torque. _
iii) Apply a drop o f locking paint on the fixing screw head.
(i) Remove the alignment disk*
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