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A-447, A-337
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 performed 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
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 in
solder, avoid unprotected skin contact with the solder. Also, when soldering do not inhale
any smoke or fumes produced.
1. SAFETY INFORMATION
FAEOR 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 ail 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 | NOt be above
current | 0.5mA
tester
Device
under
test
Test all
exposed
metal
surfaces
2-wire cord
Also test with
,
plug reversed
+
Earth
(Using AC adapter
ground
plug as required)
AC Leakage Test
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
PIONEER Service Manual.
A subscription to,
or ad-
ditional copies of, PIONEER
Service Manual may be
obtained at a nominal charge from PIONEER.
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