Pioneer a 656 owners manual

Page 1

Opera ting

Instructions

STEREO AMPLIFIER

A~ 757

A-656

A-656' is not available in US.

m u...- A- 757

The illustration shows model A-757.

Thank you for buying this Pioneer product.

Please read through these operating instructions so you will know
how to operate your unit properly. After you have finished reading
the instructions. keep the manual in a safe place for future
reference.

In some countries or regions. the shape of the power plug and
power outlet may sometimes differ from that shown in the
drawings. However. the method of connecting and operating the

unit is the same.

WARNING : TO PREVENT FIRE OR SHOCK HAZARD,
Do NOT EXPOSE THIS APPLIANCE To RAIN OR MOISTURE.

iMPORTANT NOTICE
[FOR US. and Canadian models]

The serial number for this equipment is located on the rear panel.
Please write this serial number on your enclosed warranty card
and keep it in a secure area This is for your security.

[For Canadian model]

CAUTION: TO PREVENT ELECTRIC SHOCK DO NOT USE
THIS (POLARIZED) PLUG WITH AN EXTENSION CORD,
RECEPTAOLE OR OTHER OUTLET UNLESS THE BLADES
CAN BE FULLY iNSERTED To PREVENT BLADE EXPOSURE.

ATTENTION : POUR PREVENIR LES CI-Iocs
ELECTRIOUES NE PAS UTIUSER CETI'E FICHE POLARISEE
AVEC UN PROLONCATEUR UNE PRISE DE COURANT ou
UNE AUTRE SORTIE DE COURANT, SAUF SI LES LAMES
PEUVENT ETRE INSEREES A FOND SANS EN LAISSER
AUCUNE PARnE A DECOUVERT.

LINE VOLTAGE SELECTOR SWITCH

Only multi-voltage models are provided with this
switch. U.S., Canadian, European, UK, and Australian
models are not provided with this switch.

Mains voltages in Saudi Arabia are 127V and 220V
only. Never use this model with 110V setting in Saudi
Arabia.

The line voltage selector switch is on the rear panel. Before your
model is shipped from the factory. this switch is set to the power
requirements of the destination. Check that it is set properly before
plugging the power cord into the AC wail socketlf the voltage is
not properly set or if you move to an area where the voltage
requirements diiier. adjust the selector switch as follows.

1. Use a medium-size screwdriver.
2. insert the screwdriver into the groove on the voltage selector,
and adjust so that the tip oi the arrow points to the voltage

value of your area. mu mum

Izo-127v IIOV
240v 220V
'

Medium-Size y

screwdriver

(U) PIONEER

The future of sound and vision.

Page 2

IM PO RTANT 1

The lightning flash with arrowhead. within an
equilateral triangle. is intended to alert the user of the
presence of umnsulated "dangerous voltage" within the
products enclosure that may be of sufficient magni-
tude to constitute a risk of sleetric shock to persons.

CAUTION

RISK OF ELECTRIC SHOCK
DO NOT OPEN

CAUTION:

TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER IOR WI. NO USER-SEWICEASLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

The exclamation pom: Within an equilateral triangle Ifi
intended to alert the use: (it the presence, t-I important
operating and maintenance. (servicing) instrucuons in
the literature accompanying the appliance.

IM P0 RTANT. 2

It the apparatus is fitted with AC mains power out-
let(s). see REAR PANEL FACILITIES for convenient
connection of additional Hi-Fi component(s). Make
all connections to the AC outlet(s) end the signal
terminals first. Connect the plug to the wall socket
last. make sure that the power switch is off.

FOR USE IN THE UNITED
KINGDOM

The wires in this mains lead are coloured in accor-
dance with the following code:

Blue: Neutral

Brown: Live

As the colours 0! the wires in the mains lead of this
apparatus may not correspond with the coloured
marking identifying the terminals in your plug proceed
as follows:

The wire which is coloured blue must be connected to
the terminal which is marked with the letter N or
coloured black.

The wire which is coloured brown must be connected
to the terminal which is marked with the letter L Dr
coloured red.

Equipment sold in the U.K. is not supplied with
a power plug.

READ INSTRUCTIONS - All the salary and operating
instructions should be read before the appliance
is operated.

RETAIN INSTRUCTIONS - The operating instructions
should be retained for future reference.

NEED WARNING - All warnings on the appliance and
in the operating instructions should be adhered to.

FOLLOW WSTRUCTIONS - All Operating and use in-
structions should be followed.

WATER AND MOISTURE - The appliance should not
be used near water .- Ior example. near a bathtub.
weshbowt, kitchen sink. laundry tub. in a wet
basement. or near a swrmming pool, etc.

LOCATION - The appliance should be installed in a
stable location.

WALL 0R CEILING MOUNTING - The appliance
should not be mounted to a wall or ceiling.
VENTILATION - The appliance should be situated so
that its location or position does not Interfere with
its proper ventilation. For example. the appliance
should n0t be situated on a bed. sofa, rug. or simi-
lar surface that may block the ventilation open-
ings; or. placed in a built-in installation. such as
a bookcase o'r cabinet that may impede the flow

of our through the ventilatiOn openings.

HEAT - The appliance should be situated away from
heat sources such as radiators. beat registers,
stoves, or other appliances (including amplitiersl
that produce heat.

POWER SOURCES - The appliance should be con-
nected to a power supply only of the type
described in the operating inatructions or as
marked on the appliance.

POWER-CORD PROTECTION - Power-supply cords
should be routed so that they are not "Italy to be
walked or: or pinched by items placed upon or
against them. paying particular attention to cords
at plugs. convenience receptacles. and the point
where they exit from the appliance.

POLARIZATION - If your purchased product is provid-
ed with a polarized power plug. please read the fol-
lowing instructions. This product is equipped with
a polarized alternating current line plug (a plug hav-

SAFETY INSTRUCTIONS

POWER LINES - An .outdoor antenna should be
located away from power lines.

NONUSE PERIODS - The power cord 0! the appliance
should be unplugged from the outlet when left

_unusad for a long period of time.

OBJECT AND LIQUID ENTRY - Care should be taken
so that objects do not fall and liquids are not spilled
into the enclosure thrOugh openings.

DAMAGE REQUIRING SERVICE - The appliance

should be serviced by a Pioneer authorized service

center or qualified service personnel when:

The power-supply cord or the plug has been

damaged; or

Obgects have fallen. or liquid has been spilled into

the appliance; or

The appliance has been exposed to rain; or

The appliance does not appear to operate normally

or exhibits a marked change in performance; or

The appliance has been dropped; or the enclosure

damaged.

SERVICING - The user should not attempt to service
the appliance beyond that described in the oper-
ating Instructions. For all other servicing, contact
the nearest Pioneer authorized service center.

POWER LINES

SERVICE .-
ENTRANCE
CONDUCTORS

- TERMINALS 0F

OUTDOOR ANTENNA GROUNDING - ll an outside

antenna is connected to the antenna terminal. be
sure the antenna system is grounded so as to pro-
vide some protection against voltage surges and
built up static charges.
In the U.S.A. section 8 i O of the National Electri-
cal Code, ANSIINFPA No. 70-1984. provides
information with respect to proper grounding of
the mast and supporting structure. groundlng of
the lead-in wire to an antenna discharge unit, size
of grounding conductors, location at antenna dis-
charge unit, connecrion to grounding electrodes.
and requirements for the grounding electrode; See
Fig. A.

CART - An appliance and cart combination should be
moved with care. Quick stops, excessive force.
and uneven surfaces may cause the appliance and
cart combination to overturn.

5' _'
al Use No.10 own is 3 mml cop-
per. No.8 AWG lira mm?) alumi-
num. No.1? AWL": (1.0 mml
copperoclad atrial bronze wire, or
larger as ground wit-i.
bl Secure antenna lead-in and
ground Wires to house with stand-
off insulators spaced from 4 feet
(1.22 metersl to 6 (net (1.83
metersl apart
fag???" cl Mount antenna discharge unit as
write closely as possible to where load-
in enters house.
To EXTERNAL dl Use jumper wire not smaller than
ANTENNA No.6 AWG (13.3 mmsl copper. or

STAND-OFF
INSULATORS b

i
log one blade wider than the other). This plug will - PRODUCT the equivalent, when a. separate
fit into the power outlet only one way. This is e , I all??? J , ANTENNA amema-Q'Oundlna electrode is
safety feature. If yOu are unable to insert the plug (I '- _ 015C ARGE used. _
lully into the outlet. try reversing the plug. If the senvrcs ENTRANCE UNIT c 599 NEC $86M" BIG-2I III. -
plug should still fail to fit. contacr your electrician . EQU'PMENT GROUND
to replace your obsolete outlet. Do not defeat the WIRE a.o
safety purpose of the polarized plug. GROUND
CLEANING - The appliance should be cleaned only POWER 5 E RV! CLAMPS

with a polishing cloth or a soft dry cloth. Never
clean with furniture wax, benzine. insecticides or
other volatile liquids since they may corrode the
cabinet.

GROUNDING ELECTRODE SYSTEM
(a 9. interior metal water pipe) SEEONAL ANTENNA

_ UNDING ELECTRODE
BONDING a.- DRIVEN a ran it 44 ml
JUMPER d u INTO THE EARTH
FIG A 3 IF REQUIRED BY
_ ~ LOCAL CODES SEE

NEC SECTION arc-21 iii.

2

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