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CHAPTER
1
1.1
SAFETY INFORMATION
This
service manual
is
intended for
quallfled
service technicians;
lt ls not
meant tor the
casual
do-it-yourselfer. Oualified
technicians
have
the necessary
test
equiprnent and tools,
and have
been
trained to
properly
and safely repair
complex
products
such as those
covered by this
manual.
lmproperly
performed
repairs
can
adversely
aftoct
ths.satety
and retiability
of the
product
and may void
the warranty,
It
you
are not
qualified
to
pertorm
ths repair
ot
thls
product
properly
and
safely,
you
should
not
risk trying
to
do so
and reter the repair to
a
qualllled
servlce techniclan.
WARNING
Lead in 3oldor
us6d
in thlr
ptoducl
ir liltod by th. Celifornia
Hcalth
and Wcltaro agoncy
aa a known .sproductiva
toxicant which
may
cause birth
defoct.
or othor r.prcductive hetm
(Calllo.nia
Hoelth
& Saf.ty Cod., Sectlon
25249.S).
Whsn s.rvicing
o. handling
circuit board. end
oth.. compon.ht!
which contein l..d in
.old.r, .void unprotoctod
!kin contact with
the
3oldor. Alao,
when aold.rlng do not inhala
eny amok.
or lurnar
produc.d.
NOTICE
(FOR
CANADIAN
MODEL
ONLY)
Fuse
symbols
€S
(last
operating fuse) and/or
€*
(slow
operating fuse) on PCB indicate
that
replacement
parts
must
be ol adentical designation.
REMARQUE
(POUR
MODELE
CANADIEN
SEULEMENT)
Les symboles
de lusible
€F
(fusible
de type rapide) evou
-E8-
(tusible
de type lent)
sur CCI indiquent
que
les
pidces
de remDlacement
doivent avoir la mCme
d€sionation.
(FO
R
USAMODEL
ONLY)
l.SAFETY PRECAUTIONS
The following
check should l)e
performed
for the
continued
protection
of the customer
and service
technician.
LEAKAGE
CURRENT CHECK
Measure
leakage
current to a known earth
ground
(water
pipe,
conduit, etc.) by connecting
a
leakage
current tester
such as Simpson Model 229 2 or
equivalent between the
earth
ground
and all exposed
metal
parts
of
the appliance
linput/output
terminals,
screwheads,
metal
overlays,
control shaft, etc.). Plug
the
AC Iine
cord ol the
appliance directly inro
a
1 20V
AC
6OHz
outlet
and turn
the
AC
power
switch on.
Any
current
measured
must not
exceed
O.5mA.
ANY MEASUREMENTS
NOT WITHIN
THE
LIMITS
OUTLINED ABOVE ARE INDICATIVE
OF A PO,
TENTIAL SHOCK HAZARD AND
MUST BE
COR-
RECTED BEFORE RETURNING
THE APPLIANCE TO
THE CUSTOMER.
2. PRODUCT
SAFETY
NOTICE
Many
electrical and
mechanical
parts
in
the appli-
ance have soecial safetv related characteristics. These
are often not evident
from visual
inspection nor the
protection
afforded by them
necessarily
can be
ob-
tained
by using
replacement components rated
for vol-
tage, wattage, etc.
Replacement
parts
which have
these specaal safety characteristics are identified in
this Service Manual.
Elect.ical
components
having
such features are
identilied
by marking
with
a
A,
on the schematics and
on the
parts
list in this Service Manual.
The
use
of a
substitute replacement component
which
dose not have
the same safety characteristics
as the
PIONEER
recommended reDlacement
one.
shown in
the
parts
list in this Service
Manual, may
create shock,
fire,
or other
hazards.
Product Safety is conlinuously
under
review
and
new instructions are issued
trom time to time.
For
the latest
intormation, alwavs consult the current
PIONEER Service
Manual. A
subscription
to,
or ad-
ditional
copies ol, PIONEER Service
Manual
may
be
obtained at a
nominal
charge
from PIONEER.
0 smA
Test
all
plug
reversed
(Using
AC
adaprer
plug
as requfed]
AC
Leakage
Tesl