Specifications
•
•
TROUBLESHOOTING
From a
design
aspect. the
Intellivision
II
Master
Component
is a
complex
configuration
of
electronic
hardware.
However
.
from
a
repair
aspect.
the
Master
Component
may
be
divided
into small
building
blocks, each part
modifying
or
adding
to
the
signals
in its
own
special
way
.
Whenever possible,
the
repair
of
the
Master
Component
is
simplified
by
looking
at
symp-
toms that
occur
when
a
component
fails.
It IS
recommended
that
the
first
few
time
you
,
the repair
technician,
troubleshoot
a
defective
Master
Component.
start at the
beginning
of
this
troubleshooting
procedure
and fOllow
through
until
the
problem
is
corrected
.
Famili-
arity
will
quickly
be
gained
in
identifying
the
appropriate
voltages
and
waveforms
found
•
-11 -
at v
arious
parts of the
circuit.
At
this
time
. you
witl be able to
qui
c
kly
identify
the
symptoms
ex
hibited
by the
Master
Component
and
per-
f
or
m the required
repair
.
When
changing
Integrated
Circuits
(ICs)
:
• ALWAYS USE A
KNOWN-GOOD
IC.
o
ALWAYS
FOLLOW
PROPER
PROCE-
DURES AND CAUTIONS FOR
HANDLING
MOS DEVICES.
•
BE
SURE OF CORRECT
fC
ORIENTATION
AND PIN INSERTION.
o
CHANGE
ONLY ONE IC AT A
TIME
AND
LEAVE IN THE
KNOWN·GOOD
IC
UNTIL
THE FAULTY ONE IS
FOUND
.
•