background image

8

Note:

 

Grounding is not necessary for reception, but we 

recommend it for better FM reception and to avoid damage 
from lightning when you use an outdoor FM antenna. Use a 
separate piece of thick polyvinyl insulated wire to connect the 

GND ANTENNA

 terminal to an earth ground, such as a metal 

cold-water pipe.

Warning:

 

Never connect a wire to a gas pipe for grounding 

since sparks might ignite the gas.

INSTALLING THE 
REMOTE CONTROL’S BATTERIES

Cautions: 

• Use only fresh batteries of the required size and 

recommended type.

• Do not mix old and new batteries, different types of 

batteries (standard, alkaline, or rechargeable), or 
rechargeable batteries of different capacities.

• Dispose of old batteries promptly and properly. Do not 

burn or bury them.

• Always remove old or weak batteries. Batteries can leak 

chemicals that can damage electronic circuits.

Your remote control requires two AA batteries (not included) 
for power. For the best operation and longest life, we 
recommend alkaline batteries, available at your local 
RadioShack store.

1. To remove the battery compartment cover, push the 

compartment’s tab in the direction of the arrow, then lift 
off the cover.

2. Place two fresh AA batteries in the compartment as 

indicated by the polarity symbols (+ and –) marked inside.

3. Replace the battery compartment cover.

Note: If the remote’s range is reduced, replace the batteries.

CONNECTING TO AC POWER

Warning:

 

To prevent electric shock, do not use this polarized 

plug with an extension cord, receptacle, or other outlet unless 
you can fully insert the blades to prevent blade exposure.

Before you plug in the receiver’s power cord, double check all 
other connections.

To power the receiver, plug the supplied power cord into a 
standard AC outlet. The power cord’s plug is polarized and fits 
only one way.

The STAND BY indicator lights when the receiver is plugged 
in but turned off.

Note: The receiver has a built-in circuit to protect it against 
overheating or short circuits. If your receiver automatically 
turns off (stand by mode), let it cool for several minutes. If the 
receiver overheated, it should play normally when you turn it 
back on. If there is a short circuit in your receiver, it will turn 
off again when you turn on the receiver. If this happens, check 
with your local RadioShack store for service.

Содержание STA-3850

Страница 1: ...owner s manual STA 3850 STEREO RECEIVER ...

Страница 2: ...k for extended periods FCC NOTICE This system complies with the limits for a Class B digital device as specified in Part 15 of FCC Rules These limits provide reasonable protection against radio and TV interference in a residential area However your equipment might cause TV or radio interference even when it is operating properly To eliminate interference you can try one or more of the following co...

Страница 3: ...ord Power Cord Protection Route power supply cords so they are not likely to be walked on or pinched by items placed on or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the product Lightning For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time unplug i...

Страница 4: ...ntrol s Batteries 8 Connecting to AC Power 8 Operation 9 Using the Sleep Timer 9 Tuning the Radio 9 Manual and Automatic Tuning 9 Direct Tuning Remote Control Only 10 Memory Tuning 10 Automatically Storing Stations 10 Manually Storing a Station 10 Tuning to a Station in Memory 10 Adjusting Balance 11 Muting the Receiver 11 Using Headphones 11 Listening Safely 11 Cassette Deck Features 11 Using the...

Страница 5: ...and the other pair to the B SPEAKERS terminals Optimus and other high quality speakers have color coded speaker terminals red for positive polarity and black for negative polarity Use these color coded terminals as a guide to help you properly connect the speakers to the receiver Use 16 gauge or larger speaker wire for all speaker connections and consider possible speaker locations before you deci...

Страница 6: ...und wire to the receiver s GND screw terminal Connecting a CD Player To connect a CD player to the receiver connect the CD player s left and right output jacks to the receiver s L and R CD IN jacks Connecting a Cassette Deck You can connect a cassette deck to the TAPE MONITOR jacks Connect the cassette deck s output jacks to the PLAY jacks and connect the cassette deck s input jacks to the REC jac...

Страница 7: ...se only or an outdoor VHF TV antenna To connect the TV antenna to the receiver you need a VHF UHF FM splitter not included RadioShack stores carry a full line of quality antennas and antenna connection accessories Warning To prevent injury read and follow all cautions and warnings that accompany the outdoor antenna For the best radio reception use an outdoor antenna Follow these steps to connect a...

Страница 8: ...he battery compartment cover push the compartment s tab in the direction of the arrow then lift off the cover 2 Place two fresh AA batteries in the compartment as indicated by the polarity symbols and marked inside 3 Replace the battery compartment cover Note If the remote s range is reduced replace the batteries CONNECTING TO AC POWER Warning To prevent electric shock do not use this polarized pl...

Страница 9: ...u can use VOLUME and on the remote control 5 To adjust the tone turn BASS and TREBLE toward or To increase the high and low ranges of sound at low volume press LOUDNESS To turn off this feature press LOUDNESS again 6 To adjust the balance of sound between the left and right speakers see Adjusting Balance on Page 11 7 When you finish using the receiver press POWER to turn it off USING THE SLEEP TIM...

Страница 10: ...st frequency station in the band Repeat these steps to automatically store stations in the other band Manually Storing a Station When the receiver automatically stores stations some of them might not be your favorites Or the 30 channel memory might have filled up before the receiver reached your favorite station at the high end of the frequency range Follow these steps to manually replace a statio...

Страница 11: ...the volume level so a volume level that does not cause discomfort might still damage your hearing CASSETTE DECK FEATURES You can connect a cassette deck to the receiver Selecting TAPE MONITOR lets you hear the playback from the cassette deck you connected to the receiver s TAPE MONITOR jacks Using the Tape Monitor Button Press TAPE MONITOR TAPE MON appears along with the last program source you se...

Страница 12: ...ne of the speaker wires or the input cord is disconnected Check all connections BALANCE is set too far to one side Set BALANCE to the center position High noise level Station not correctly tuned Adjust tuning Antenna not connected Connect the antenna FM antenna still coiled or is not pointing in the correct direction Stretch both ends of the antenna taut and reposition the antenna AM loop antenna ...

Страница 13: ...hack and is covered by a limited warranty from RadioShack If your receiver is not operating as it should take it to your local RadioShack store or call 1 800 THE SHACK for assistance THE FCC WANTS YOU TO KNOW Your receiver might cause radio or TV interference even when it is operating properly To determine whether your receiver is causing the interference turn off your receiver If the interference...

Страница 14: ...B FM Tuner Frequency Range 87 5 to 108 MHz Usable Sensitivity Mono 15 µV m EMF Signal to Noise Ratio Mono 68 dB Stereo 63 dB Distortion Stereo 0 5 1 kHz Alternate Channel Selectivity 45 dB 400 kHz Stereo Separation 35 dB 1 kHz AM Tuner Frequency Range 530 to 1720 kHz Sensitivity IHF Loop Antenna 500 µV m Selectivity 25 dB Signal to Noise Ratio 35 dB General Power Requirements 120 Volts AC 60 Hz Po...

Страница 15: ...15 NOTES ...

Страница 16: ...nt of a product defect during the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by law a correct the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts a...

Отзывы: