Pioneer TX-610 Operating Instructions Manual

Brand: Pioneer

Model: TX-610

Category: Audio tuners

Type: Operating Instructions Manual

Pioneer TX-610 is a stereo tuner that allows the user to enjoy high-quality audio from FM and AM radio broadcasts. With its advanced features and user-friendly design, the TX-610 is an excellent choice for audio enthusiasts who demand exceptional sound quality.

The TX-610 boasts a highly sensitive tuner section that delivers crystal-clear reception even in areas with weak signals. It supports both 75-ohm coaxial cable and 300-ohm twinlead feeder connections, providing flexibility and convenience in antenna setup.

For enhanced stereo separation and noise reduction, the TX-610 employs a sophisticated audio section with an impressive signal-to-noise ratio. It features separate left and right channel outputs, allowing for direct connection to an amplifier or stereo system.

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OPERATING INSTRUCTIONS KU

STEREO TUNER

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IMPORTANT NOTICE

The serial number for this equipment is located on the

rear panel. Please write this serial number on your

enclosed warranty card and keep in a secure area.

This is for your security.

WARNING: TO PREVENT FIRE OR

SHOCK HAZARD, DO NOT EXPOSE

THIS APPLIANCE TO RAIN OR MOI.

STURE.

(DrrroNeeR'

SAFETY INSTRUCTIONS

READ INSTRUCTIONS - All the safety and operating instructions

should be read before the appliance is operated.

RETAIN INSTRUCTIONS - The operating ;nstructions should be

retained for future reference.

HEED WARNING - All warnings on the appliance and in the

operating instructions should be adhered to.

FOLLOW INSTRUCTIONS - All operating and use instructions

should be followed.

WATER AND MOISTURE - The appliance should not be used near

water - for example, near a bathtub, washbowl, kitchen sink,

laundry tub,in a wet basement, or near a swimming pool, etc.

CARTS AND STANDS - The appliance should be used only with

a stereo rack that is recommended by Pioneer.

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

WALL OR 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 not be situated on a bed, sofa,

rug, or similar surface that may block the ventilation openings;or,

placed in a built-in installation, such as a bookcase or cabinet that

may impede the f low of air through the ventilation openings.

HEAT - The appliance should be situated away from heat sources

such as radiators, heat registers, stoves, or other appliances

(lncluding amplifiers) that produce heat.

POWER SOURCES - The appliance should be connected to a

power supply only of the type described in the operating instruc-

tions or as marked on the appliance.

POWER CORD PROTECTION - Power-supply cords should be

routed so that they are not likely to be walked on 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.

CLEANING - The appliance should be cleaned only with a polish-

ing cloth or a soft dry cloth. Never clean with furniture wax,

benzine, insecticides or other volatile liquids since they may cor-

rode the cabinet.

POWER LINES - An outdoor antenna should be located away from

power lines.

NONUSE PERIODS - The power cord of the appliance should be

unplugged from the outlet when left unused for a long period of

time.

OBJECT AND LIOUID ENTRY - Care should be taken so that

objects do not fall and liquids are not spilled into the enclosure

through openings.

DAMAGE REOUIRING SERVICE - The appliance should be

serviced by Pioneer authorized service center or qualified service

personnel when:

. The power-supply cord or the plug has been damaged; or

. Ob.iects have fallen, or liquid has been spilled into the appli-

ance; or

o The appliance has been exposed to rain; or

o 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 operating instructions. All other

servicing should be contact nearest Pioneer authorized service

ce nte r-

OUTDOOR ANTENNA GROUNDING - lf an outside antenna is

connected to the antenna terminal, be sure the antenna system is

grounded so as to provide some protection against voltage surges

and built up static charges. Section 810 of the National Electrical

Code, ANSI/NEPA No. 70-1978, provides information with re-

spect to proper grounding of the mast and supporting structure,

grounding of the lead-in wire to an antenna discharge unit, size of

grounding conductors, location of antenna-discharge unit, con-

nection to grounding electrodes, and requirements for the ground-

ing electrode. See Fig. A.

EXAMPLE OF ANTENNA GROUNDING AS

PER NATIONAL ELECTRICAL CODE INSTRUCTIONS

a), b)

Mast

ground

wire To Antenna terminal

Ground clamps

Grounding electrode

driven 8'into the earth

(2.44 meters)

Fis. A

a) Use No. 10 AWG copper or No.8 AWG aluminum or No. 17

AWG copper-clad steel or bronze wire, or larger as ground

wires for both mast and lead-in.

Secure lead-in wire from anlenna to antenna discharge unit and

mast ground wire to house with stand{ff insulators, spaced

from 4 feet (1.22 meters) to 6 feet ( 1.83 meters) apart.

Mount antenna discharge unit as closely as possible to where

lead-in enters house.

TJIONEER

CONTENTS

Specifications....

Rear Panel Facilities

Antenna and Ground Connections

FrontPanel Facilities ...6

ListeningtoBroadcasts ...6

Troubleshooting... .....8

SPECIFICATIONS

Semiconductors

lCs. . .

FET..

Trans isto rs

Diodes

FM Tuner Section

Usable Sensitivity

50dB Ouieting Sensitivity

MONO

STE R EO

Signal-to-Noise Ratio (at 85dBf)

MONO

STEREO

Distortion (at 65dBf )

MONO lkHz .

STEREO lkHz .

Capture Ratio .

Alternate Channel Selectivity

400kHz

Stereo Separation

lkHz .

Frequency Response

Spurious Response Ratio . . . . .

lmage Response Ratio

lF Response Ratio .

AM Suppression Ratio

SubcarrierProduct Ratio . . . . .

SCA Rejection Ratio

Muting Threshold

Antenna lnput .

10.3dBf (1.8pV)

15.8dBf (3.4pV)

38.3dBf (4SpV)

8ftB

82dB

0.08%

0.15%

1.0d8

60dB

40dB

2oHzto 1skHz:? 3 dB

70dB

60dB

90dB

60dB

17.2dBt (4.0pV)

300 ohms balanced,

75 ohms unbalanced

AM Tuner Section

Sensitivity

(lHF, ferrite antenna)

(lHF, ext. antenna)

Selectivity

Signal-to-Noise Ratio

lmage Response Ratio

lF Response Ratio .

Antenna

Audio Section

Output ( Level/l mpedance)

FM (100% MOD) .

AM (30% MOD) .

Miscellaneous

Power Requirements

Power Consumption

Dimensions

Weight (without package) . . . . .

Furnished Parts

Operating instructions

FM T-type antenna

NOTE:

Specifications and the design subject to possible modifications

without notice due to improvements.

300pV/m

1 5pV

3ft8

50dB

40dB

Ferrite loopstick antenna

650mV/1kSl

150mV/1kO

AC 12OV,6OHZ

17W (UL}

420(W) x 94(H)

x 262(D) mm

16-9/16(W) x 3-1 1/16(H)

x 10-5/16(D) in

3.6kg (7 lb 15 oz)

REAR PANEL FACILITIES

E FM ANTENNA INPUT TERMINALS FoR

3OO-OHM TWINLEAD FEEDER

Connect a 300-ohm twinlead feeder to these terminals

when using it as the feeder from the FM antenna. Use

these terminals when connecting the accessory T-type FM

anten na.

@ FM ANTENNA INPUT TERMINALS FOR

75-OHM COAXIAL CABLE

Connect a 75-ohm coaxial cable to these terminals when

using it as the feeder from the FM antenna.

@ cNo TERMTNAL

This is the ground terminal. From aspects of both safety

and reduced noise, connect a ground lead to this terminal.

Refer to Fig. 3 on page 5.

@ NTVI ANTENNA INPUT TERMINAL

When using an external AM antenna, connect it to this

term inal .

@ ourpur coRD

Connect these cords to tuner input jacks on your ampli-

fier (white plug for left channel and red for right channel).

making sure that the power to the stereo system is switch-

ed off before hand. When connecting these to the inputs

of a stereo amplif ier, first check the color of the plugs and

then connect f irmly.

@ poweR coRD

This is plugged into a household AC power outlet or into

an auxiliary outlet on another stereo component.

Connecting the 75-ohm

coaxial cable

FM outdoor antenna

75-ohm coaxial cable

ANTENNA AND GROUND CONNECTIONS

FM ANTENNAS

There are two methods you can use when connecting the

FM antenna to the antenna input terminals: you can use

a 300-ohm twinlead feeder or a 75-ohm coaxial cable.

Pioneer recommends the 75-ohm coaxial cable (RG59U,

etc.) if you want your tuner to display its capabilities to the

full. The coaxial cable is more effective than the twinlead

feeder in safeguarding against external interference noise

from impairing the sound quality. ln other words. twinlead

feeders are liable to pick up external noise, and this iswhy

they are not recommended.

CONNECTIONS USING A 75-OHM COAXIAL

CABLE

Refer to Fig. 1 and follow the procedure. Prepare the tip

of the coaxial cable and connect it to the antenna input

terminals (75Sr-UNBAL).

EH:rh

Unit: mm {GND

7S-ohm terminals

CONNECTIONS USING A 3OO-OHM TWINLEAD

FEEDER

ln cases where it is only possible to use a twinlead feeder

with a community receiving system antenna, refer to Fig. 2

and follow the procedure. Prepare the ends of the twinlead

feeder and attach them to the 300S2-BAL antenna input

terminals. Then make the twinlead feeder as short as

possible but do not bundle the wires or run them loose on

the floor.

ACCESSORY T.TYPE ANTENNA

Th is antenna is designed to allow you to receive FM

programs in areas where strong signals are beamed by

broadcasting stations until you install your FM antenna.

As shown in Fig.2, atlach the antenna to the 300Q-BAL

antenna input terminals and then tune into an FM station.

following the instructions listed under "LISTENING TO

BROADCASTS" on page 6. Extend both ends of the

antenna horizontally, locate the optimum receiving location

by moving the antenna to the left or right, or up or down,

and then secure it to the ceiling or wall.

AM ANTENNA

This tuner is provided with a ferrite bar antenna inside.

lf reception is not satisfactory when AM programs are

received, change the direction of the tuner (and this will

change the direction of the inside bar antenna).

To achieve optimum reception, connect an AM antenna as

follows.

Indoor AM antenna

Provide yourself with a vinyl-covered wire (5 - 6 m),

attach one end to the AM terminal and the other end to a

wall or other high location.

Outdoor AM antenna

lf reception is still poor even when the indoor lead wire is

extended, stretch a vinyl-covered wire outdoors as in

Fis.3.

GROUND

Stations can be picked up without grounding the tuner.

However, it is a good idea to connect the ground wire to

the GN D terminal in the interest of saf ety and noise

suppress ion.

NOTE:

Do not connect the ground wire to a gas pipe since this is danger-

ous.

T-type FM antenna

l-------l

rJIONEER

Fis.3

FM antenna

300-ohm

term i nals l- tg

Outdoor Alvl antenna

Connecting the twinlead feeder

lndoor AM antenna

(vinyl insulated wire)

FRONT PANEL FACILITIES

E PoWER SWITcH

Set this switch to ON to supply power to the tuner.

@ FUNCTTON INDTCATORS

These indicator light up in accordance with the position

of the function switch.

@ srcrunl tNDrcAToR

This indicator lights in sequence from 1 through 5 during

the tuning of an AM or FM broadcast in accordance with

the strength of the signals being received. The optimum

tuning point is where the maximum number of indicators

light.

@ FM STEREO INDICATOR

This indicator lights up when the tuner is receiving a

stereo program if the FM muting/mode switch is set to

oN.

€) TUNING METER

This tuning meter also acts as a dial pointer during the

tuning of AM and FM broadcast stations. The optimum

tuning point is indicated regardless of the strength of the

signals. When a program is not being received, the pointer

is positioned in the center. When tuning in a station, the

pointer deflects to the left or right, and perfect tuning

is indicated when the pointer is positioned in the center.

LISTENING TO BROADCASTS

1 . Set the power switch to ON.

2. Select the function switch according to the band of the

station whose program you want to hear.

3. Set the FM muting/mode switch to ON.

4. Turn up the volume control on the stereo amplifier a

little.

5. Turn the tuning knob to select the desired station.

(RefeT to ,,HOW THE TUNING METER AND STA-

@ FUNCTION SWITCH

This switch is used to select the type of broadcasting

waves.

FM For reception of FM broadcasting

AM For reception of AM broadcasting

€) FM MUTING/MODE SWITCH

When this switch is set to ON, unpleasant interstation

noise is eliminated, which makes selection of stations

easier. However, if the muting switch is set to ON in areas

where the field strength is extremely weak, the station

being received may also disappear. ln such areas. there-

fore. the muting switch should be turned OFF (MONO) .

When this switch is set to OFF (MONO), monaural

reception will be obtained even though the station is

broadcasting a stereo program.

@ RECORDING LEVEL CHECK SWITCH

Set this switch to OFF for normal FM reception and to

ON for a recording reference level used for FM broadcasts.

Refer to "RECORDING LEVEL CHECK SWITCH" on

next page.

€) TUNING KNOB

This knob is used f or selecting station. Observe the tuning

meter and signal indicators, and set the tuning knob to the

optimum tuning point when aligning the target broadcast

station.

TION INDICATORS WORK" on next page).

o The FM stereo indicator lights up with an FM stereo

broadcast.

o ln order to listen to weak-signal FM stations, set the FM

muting/mode switch to the OFF (MONO) position and

re-tu ne.

6. Adjust the volume with the volume control on the stereo

amplif ier.

PIONEER

HOW THE TUNING METER AND SIGNAL INDICATOR WORK

This tuning meter operates on center tuning principles.

The pointer works in the same way for both AM and FM

recept io n .

When the pointer deflects

to the left. When the pointer def lects

to the right

This means that the station

is near.

[?:xTJ::.4

to the right. \_/

--=-- J"--------

96 ga 10o

,rrrr ,' 'ff, "1, ".,"

rThe pointer is positioned in the

center when the tuner is not

receiving a broadcast.

. When the pointer is brought

near a spot on the scale where

there is a station, it will deflect

as shown in the figures on the

left or right.

. When the pointer is positioned

in the center and the maximum

number of signal indicators

light, this indicates the optimum

tuning point.

o="il'a o

2345

lndicators 1 through 5light

in line with the strength of

the signals being received.

This means that the station

is near.

Rotate the A

tuningknob I n " )

totheleft. V

DING LEVEL CHECK SWITC

The recording level must be set correctly for good quality

FM broadcast. However, this is not easy since the output

level is fluctuating allthe time.

By setting the recording level check switch to ON, it is

possible to make available an approximately 330H2

reference signal at a level which is equivalent to a 50%

FM modulation. This means that it is possible to set the

recording level optimally, irrespective of the program being

received.

Setting the recording level

1. Connect the tape deck.

2. Set the tape deck to the recording standby mode.

3. Set the function switch to FM.

4. Set the recording level check switch to ON, and 330H2

signals will now be fed out to the OUTPUT.

5. Adjust the recording level of the tape deck so that the

recording level meter pointers deflect with in the

following ranges:

. 0 to +2dB with an open-reel deck

o About -2dB with a cassette deck

6. Tune in to the desired FM station and start recording

after setting the recording level check switch to OFF.

The output level of the signals is the same for both left and

right channels, and so these signals can be used as reference

signals to adjust the left/right channel volume balance of a

stereo system connected to the OUTPUT.

r,IONEER

TROU BLESHOOTING

Sometimes an operational fault can be mistaken for a malfunction or failure. Check the following points and see if the

symptoms of the trouble are outlined below before you get in touch with the serviceman. lf you cannot locate the symptoms,

turn off the power and contact your nearest Pioneer Service Center, Service Station of authorized Pioneer dealer.

Symptom Possible trouble and Remedy

No power even when POWER

switch is set to ON.

No sound

lntermittent noise

Sound is distorted

Stereo reception is not obtained

Power plug is not connected

to the power outlet.

r= ffr"\

I - E\@j

l=_) +f p

:,1&e-\

Connect the plug to the outlet.

One or both output cords

have worked free.

Connect the jacks securely

The antenna is not pointing

in the riqht direction and the

tuner is not performing to

the best of its ability.

,->/-"r=:>t4

s '-]p.''-

+ JV#\

\-2>

Point the FM antenna pro-

perly in the direction of the

transmitting antenna.

Tuning is not satisfactory

and the tuner is not there-

fore performing to the best

of its ability.

Refer to the section on "Lis-

tening to Broadcasts" and

adjust the tuning knob to

the optimum tuning point.

The muting switch is set to

OFF (MONO}.

The antenna connecting

leads have worked free.

Connect f irmly to the termi

nals.

The FM antenna is not point.

ing in the right direction and

it is being affected by the

multipath phenomenon.

lf the tuner is being used

near equipment generating a

great deal of noise, separate

it f rom the equipment.

The signals being picked up

are weak and so the muting

circuit has been activated

and no sound is heard.

lnstall a highly sensitive

antenna outdoors or set the

muting switch to OFF.

The antenna has not been

connected properly and so

the sensitivity is poor and

the tuner is picking up inter-

ference.

Connect f irmly to the termi-

nals.

Point the FM antenna pro-

perly in the direction of the

transmitting antenna.

Set this switch to ON

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I'J.5. FICINEEFI ELECTFICINIGS COFIPCIFIATION 85 Oxfond Dnive, Moonachie, New Jersey O7O74, U.S.A.

PICINEEFI ELECTFICTNIC IEUFICIPE! N.V. Luithagen-Haven g, 2O3O Anrwenp, Eletgiurn

PIONEEFI ELECTFEIUICA AUEiTRALTA PTY. LTEI. 178-1A4 Eoundany Fload, Bnaeside, Vicronia 39S, Ausrnatia

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Pioneer TX-610 Operating Instructions Manual

Brand: Pioneer

Model: TX-610

Category: Audio tuners

Type: Operating Instructions Manual

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Pioneer TX-610 Operating Instructions Manual

Pioneer TX-610 Operating Instructions Manual

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