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TROUBLESHOOTING GUIDE

Maintaining Your Parasound Tuner

Your Parasound T 3 Tuner requires no periodic maintenance and has no user-serviceable
parts inside. To avoid the risk of electric shock, do not remove the top cover. Its exterior
can easily be cleaned with a soft cloth pre-moistened only with a few drops of water or
glass cleaner. 

TROUBLE

Noisy reception, especially 

FM stereo

STEREO in the display 

fluctuates between  

STEREO and MONO   

Sound distortion or 

fluctuations in FM reception

Unwanted noise in stereo 

broadcasts; sometimes all 

sound disappears 

intermittently

Noise on AM broadcasts

One channel out

T 3 loses preset memory

Remote control does not 

operate

Random numbers or letters 

in display

Buttons and knob don’t 

operate correctly

PROBABLE CAUSE

Location and/or the direction of the 

antenna is unsatisfactory 

Antenna is not sufficiently powerful

Weak signal

Multi-path distortion. This occurs 

when broadcast signals that reflect 

off nearby buildings and hills 

interfere with the direct signal from 

the FM transmitter

The broadcast signal is weak

Interference from a television, 

computer, light dimmer, or other 

household appliance

Bad connection at preamplifier or 

power amplifier

Power loss to the T 3 for extended 

period of time (more than 10 days)

Weak or dead batteries in the remote

IR interference

Remote too far from T 3

Microprocessor is locked up

Microprocessor is locked up

REMEDY

Try changing the location, height and direction 

of the antenna     

Try an external or powered antenna

Connect to TV/FM cable company

Same as above

Adjust or aim the FM antenna toward direct 

signals and away from reflected signals. This 

is largely a matter of trial-and-error

Connect to TV/FM cable company

Same as above

Press the 

Mono-Stereo

 button to select mono

Turn off the source of the interference

Check all connections

Make sure T 3 is plugged into an AC outlet that 

always remains live

Replace batteries

Move the T 3 so its front panel is not exposed 

to sunlight or facing a plasma TV screen

Use an IR repeater system

Press reset switch through hole on rear panel.

Reprogram presets

Press reset switch through hole on rear panel.

Reprogram presets

19

Summary of Contents for Halo T 3

Page 1: ...T 3 Amplifier Owner s Guide...

Page 2: ...asound for your listening pleasure The Parasound Staff Keeping Records for Future Reference Record the serial number located on the bottom of your T 3 in the space below Also note your Parasound Deale...

Page 3: ...V LOOP OUTPUT JACK _________________________________________________________________________________ RS232 CONTROL _________________________________________________________________________________ CON...

Page 4: ...that will adequately support its weight Keep it away from heat sources such as air ducts or radiators Leave at least 1 of space on all sides and the top This helps facilitate passive heat dissipation...

Page 5: ...preamplifier or surround controller has balanced XLR inputs we recommend that you connect them to these outputs Refer to the Balanced and Unbalanced Lines in the Technically Speaking section for addit...

Page 6: ...RCA input jacks Before Connecting Turn off the power to the T 3 To Connect Plug one end of the first cable into the right Line Output 1 jack on the T 3 Plug the other end of this cable into the right...

Page 7: ...ct Use the screwdriver to loosen the two screw terminals on the adapter Slide one of the metal spade lugs under each screw terminal Tighten the screw terminals so the spade lugs are firmly secured and...

Page 8: ...the far left side of the T 3 rear panel Loosen the GND and AM terminals on the T 3 rear panel No screwdriver is needed Slide the spade lug from each antenna wire under each of these terminals Tighten...

Page 9: ...the T 3 To Connect Plug the receiving eye into the input on the connecting block Plug the power supply into the connecting block Push one of the cable s 1 8 mini plugs into the connecting block Push...

Page 10: ...component with an external DC trigger voltage TURNING THE T 3 ON AND OFF WITH AN EXTERNAL 9 VDC TO 12 VDC TRIGGER VOLTAGE 7 YOU SHOULD KNOW If the device you want to use to control your T 3 doesn t ha...

Page 11: ...al 9 Vdc to 12 Vdc trigger voltage Before Connecting Remove power to all the components in your audio system To Connect Connect one end of this cable to the 12V Loop Out jack on the T 3 Connect the ot...

Page 12: ...with a DB9 connector The pin configuration is Pin 2 transmit Pin 3 receive Pin 5 ground Before Connecting Remove power to all the components in your audio system To Connect Connect the RS232 cable to...

Page 13: ...he T 3 can operate on either 110 120 Vac or 220 240 Vac operation When you purchased your T 3 its rear panel Voltage switch was already set for the proper voltage in your area Nevertheless it s wise t...

Page 14: ...dental operation so you ll need a toothpick or other non metal tool to insert into the hole Don t use a straightened paper clip because it might cause a short circuit and damage parts Push gently to a...

Page 15: ...ith the On and Off buttons on its remote control handset or with an external DC source Turning the T 3 On Press the On Off button on the front panel the On button on the remote control or apply an ext...

Page 16: ...to seek the previous station Seek Tuning at the Front Panel Turn on the T 3 by pressing the On Off button on the Front Panel or the On button on its remote control The station you had previously selec...

Page 17: ...en the Region switch is set to EU the T 3 manual tuning is in 9 kHz steps Selecting Stations by Entering Frequency This lets you find stations by selecting their broadcast frequencies This is done wit...

Page 18: ...o it This enables you to distinguish between preset numbers that you ve already assigned and those that are available You can reassign a preset number to a new station by repeating the Saving Stations...

Page 19: ...720 AM there s no station saved to it Saving Stations as Presets Auto Memory Auto Memory is an easy way to save stations but it doesn t give you control over which stations are saved Auto Memory autom...

Page 20: ...ta System RDS Tune into a radio station with one of the methods described earlier in this manual If the station has RDS information available the letters RDS will appear in the display Press the RDS b...

Page 21: ...Buttons Controls 1 On Off P 3 T 3 2 Tone On Off P 3 3 Mute On Off P 3 4 Source Select P 3 5 Preset T 3 6 Tuning T 3 7 FM AM Select T 3 8 Tuner Presets T 3 9 Enter Frequency T 3 10 Memory Automemory T...

Page 22: ...fere with the direct signal from the FM transmitter The broadcast signal is weak Interference from a television computer light dimmer or other household appliance Bad connection at preamplifier or pow...

Page 23: ...any of the following Units with collect shipping charges Units without a valid RA number Units without a suitable shipping carton Units for which we see or hear evidence of improper packing For a non...

Page 24: ...e it is canceled or rejected by the differential input circuit This phenomenon of rejecting noise signals common to both positive and negative conductors is called TECHNICALLY SPEAKING common mode rej...

Page 25: ...their values don t drift as they heat up during operation Semiconductors were selected for superior performance in their specific roles in the circuit specifically their low noise and distortion char...

Page 26: ...0 dB Frequency Response FM 30 Hz to 15 kHz 1 dB AM 20 Hz to 5 5 kHz 2 dB Total Harmonic Distortion THD FM Mono 0 08 FM Stereo 0 2 AM 1 Capture Ratio 1 5 dB AM Suppression 60 dB Dimensions Width 17 1 4...

Page 27: ...Parasound Products Inc 950 Battery Street San Francisco CA 94111 415 397 7100 Fax 415 397 0144 www parasound com...

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