REV.-A
Print pattern
~
~=t:!J~-'-'&f
Board Through hole
Print pattern (Copper foil or copper foil plated
with
solder)
Fig.
6-7
Section
of
Board
6.4
Component
Locking
This
computer
is portable and may be often subjected
to
vibrations and shocks. Thus, measures
are required
to
prevent any failure due
to
possible loose screws, variable resistor adjustment de-
viations,
poor
contacts
of
cables and jumpers, etc. The
following
measures should be taken after
any circuit board
or
other
component
replacement
or
variable register readjustment, etc.
6.4.1
Variable
Resistor
Locking
After
a variable resistor is readjusted, apply a
small
amount
of
silicon lock on the variable re-
sistor
as
shown
in Fig. 6-8.
Care
must
be used
to
keep the driver groove
free
from
the lock agent.
6.4.2
Screw
Locking
After
any circuit board is replaced
or
any
micro-
cassette tape drive azimuth adjustment is
made, apply a small
amount
of
screw
lock
agent on
the
fixing screws
or
the azimuth ad-
justment
screw
as
shown
in Fig. 6-9.
6.4.3
Ensuring
an
FPC
Cable
Connection
Before
disconnecting/connecting
any
FPC
ca-
ble,
unlock
its connector.
When
connecting
an
FPC
cable, make sure
that
the
cable end
reaches the
bottom
of
the
connector
before
locking the connector.
6-7
Movable screw head Silicon lock
Driver groove
Fig.
6-8
Variable
Resistor
Locking
Screw lock agent
Fig.
6-9
Screw
Locking
~-----
::;;~I
%%%%Z~z~zz~_Lz,
Locked
Unlocked
Fig.
6-10
FPC
Cable
Connection/
Disconnection
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