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Teac MT-20D-IO - Page 74

Teac MT-20D-IO
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(5)
TP6
(GND)
PCBA
Drive
Control
This
point
is
connected
to
0
v.
(6)
TP7
(output
of
differential
amplifier)
PCBA
drive
control
Test
point
for
measuring
the
output
of
the
differentiator.
TP7
is
used
to
check
the
operation
of
the
read
amplifier.
Signal
level:
1.5
to
4 Vp-p
Fig.
338 Example
of
waveform
at
TP7
(7)
TP8
(output
of
the
level
detect
amplifier)
PCBA
Drive
Control
Test
point
for
measuring
the
output
of
the
level
detect
amplifier.
TP8
is
used
to
adjust
the
read
level,
and
check
the
various
characteristics
of
the
head
Ass'y.
Fig.
339 Example
of
waveform
at
TP8
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