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CONTENTS
1,
SAFETY INFORMATION
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6.
ADJUSTMENTS
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2.
EXPLODED VIEWS, PACKING AND
6.
REGUAGES ssi ilinsicccecsrecceues
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PARTS: [|S Teves eves cceeseendesestescoheosentatacieusssneuaweres 3
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3.
SCHEMATIC
DIAGRAMG srrsrcececereetser
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7.
FOR F-449L/HE, HB AND F-448-S/HEWZ
4,
P.C.
BOARDS
CONNECTION
DIAGRAM
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TYPES
PREECE TRETEE EET EVIE CECE
REC R E EP
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5.
P.C.B.'s PARTS
LUST
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8
SPECIFICATIONS
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ETL ET CLERC
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32
9
PANEL
FACILITIES
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This service manual
is intended
for qualified service technicians;
it is not
:
meant for the casual do-it-yourselfer. Qualified technicians have the neces-
sary test equipment and tools, and have been trained to properly and safely
repair complex products such as those covered by this manual.
Improperly pet formed repairs can adversely affect the safety and reliability
of the product
and
may
void
the warranty.
If you are not qualified to
perform the repair of this product properly and safely, you should not risk
1.
trying to do so and refer the repair to a qualified service technician.
WARNING
Lead in solder used in this product is listed by the California Health and Welfare agency as
a known reproductive toxicant which may cause birth defects or other reproductive harm
(California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in
solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale
any smoke or fumes produced.
SAFETY INFORMATION
r-(FOR USA MODEL ONLY)
1.SAFETY PRECAUTIONS
The following check should be 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 (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a
120V
AC 60Hz outlet and turn the AC power switch on. Any
current measured
must not exceed 0.5mA.
Reading should
Leakage | N0t be above
0.5mA
current
tester
?
Device
under
test
Test all
exposed
metal
surfaces
2-wire cord
Also test with
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 special safety 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 special safety characteristics
are identified in
this Service Manual.
;
Electrical
components
having such
features
are
identified 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
replacement one, shown in
the parts list in this Service Manual, may create shock,
fire, or other hazards.
Product Safety is continuously under review and
new
instructions are issued from time to time. For
the latest information,
always
consult
the current
a
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