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INTRODUCTION

Your RCA STA-3850  Stereo Receiver operates as the perfect 
control center for your audio system. It combines  50 watts-
per-channel of clean power with modern styling. It provides 
connections for one tape deck, a turntable, a CD player, and 
one other audio source, such as audio from a digital video disk 
(DVD) player. You can also connect up to two pairs of 
speakers (not supplied) to your receiver.

Additional features include:

Digital-Synthesized Tuner — Precisely tunes to AM and FM 
stations.

60 Memory Locations —  Let you store and recall the 
frequencies for up to 30 AM and 30 FM stations.

Automatic Tuning — Searches for the next available AM/FM 
station.

Tape Monitoring —  Lets you listen to the actual recording as 
you record, if your tape deck has a tape-monitoring feature.

Built-In Protection Circuits —  Automatically turn off the 
receiver to help avoid power surges or short circuit damage.

Remote Control — Lets you use a single remote control for the 
receiver and other compatible components connected to the 
receiver.

Note: The remote control requires two AA batteries (not 
supplied).

We recommend you record the receiver’s serial number here. 
The number is on the receiver’s back panel.

Serial Number:_____________________________________.

Caution: Unplug the cassette deck's power cord when you will 
not use the cassette deck 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 corrective measures:

• Reorient or relocate the receiving antenna.

• Increase the distance between the equipment and the radio 

or TV.

• Use outlets on different electrical circuits for the 

equipment and the radio or TV.

Consult your local RadioShack store if the problem still exists.

Warning: Changes or modifications to this unit not expressly 
approved by RadioShack could void the user’s authority to 
operate the equipment.

WARNING: To reduce the risk of fire or shock hazard, do not expose 
this product to rain or moisture.

CAUTION

RISK OF ELECTRIC SHOCK. 

DO NOT OPEN.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER OR BACK. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSON-
NEL.

This symbol is intended to alert you to the
presence of uninsulated dangerous voltage
within the product’s enclosure that might be of
sufficient magnitude to constitute a risk of
electric shock. Do not open the product’s case.

This symbol is intended to inform you that
important operating and maintenance
instructions are included in the literature
accompanying this product.

!

!

©

 1999 Tandy Corporation.

All Rights Reserved.

Summary of Contents for STA-3850

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 15: ...15 NOTES ...

Page 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...

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