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PD-31,PD-7700
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.
tmproperly 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 fisted 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, avaid unprotected skin contact with the solder. Also, when soldering do not inhale
any smoke or fumes produced.
1. SAFETY
INFORMATION
j(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.). Ptug
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
re | Not be above
Device
O-bmA
under
test
ci a fe
Test alt
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 tist 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 Manuai, may create shock,
fire, or other hazards.
Product Safety is continuously
under review and
new instructions are issued. from time to time. For
PIONEER Service Manual.
A subscription to, or ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominat
charge from PIONEER.
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