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Sony STR-SE501 Support Question

Sony STR-SE501 Support Question

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Question posted by fiestaautosales on February 18th, 2015

Unlock Appears On The Receiver

after a previous use, the sound stopped working. Unlock appears on the receiver.

Current Answers

Answer #1: Posted by waelsaidani1 on February 19th, 2015 1:04 AM
This answer was accepted by the poster of the original question.
waelsaidani1

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When the UNLOCK error message appears in the display of the A/V receiver, there is either a problem receiving a digital audio signal or the system is tuned to receive a digital audio signal but there is no digital audio source available.

Follow these steps to troubleshoot when there is a digital source connected:

IMPORTANT: If model-specific information is needed to complete any of the steps in this solution, refer to the instructions supplied with the product. Manuals are available online through the Manuals/Specs/Warranty link on this page.

  1. Check that the correct input is selected on the A/V receiver from the appropriate source.
  2. Make sure a digital cable is connected to the appropriate DIGITAL jack.
  3. Verify the other end of the digital cable is properly connected to the A/V receiver.
  4. Make sure the A/V receiver is set appropriately to output a digital signal.NOTE: The A/V stereo system may have a DTS setting that needs to be turned on, or a DPCM setting that needs to be set to Dolby Digital.

If there is no digital audio source connected and the error is still displayed, the INPUT will need to be changed to a correct setting. Depending on your unit, either press the INPUT MODE button or turn the INPUT MODE dial to one of the following:

  • AUTO IN: This setting gives priority to digital signals when there are both digital and analog connections. If there are no digital signals, analog is selected.
  • ANALOG: Specifies the analog audio signals input to the AUDIO IN left and right jacks.

Related Sony STR-SE501 Manual Pages

Operating Instructions (Receiver) - Page 1

4-227-987-13(1) FM Stereo FM-AM Receiver Operating Instructions STR-DE545 STR-DE445 STR-SE501 © 2000 Sony Corporation
Operating Instructions (Receiver) - Page 3

... STR-DE545, STR-DE445 and STR-SE501. For details on the power. Demonstration Mode The demonstration will activate the first time you turn on , the demonstration will clear the receiver's memory. For details on what will be cleared, see "Clearing the receiver's memory" on the receiver. TABLE OF CONTENTS Hooking Up the Components 4 Unpacking 4 Antenna Hookups 5 Audio Component Hookups...
Operating Instructions (Receiver) - Page 4

...Do not use the remote for the components you don't use a new battery with the receiver: • FM wire antenna (1) • AM loop antenna (1) • R6 (size-AA) batteries (2) • STR-DE545 and STR-SE501 only •...hum and noise. • When connecting an audio/video cord, be sure to match the color-coded pins to the appropriate jacks on the receiver. ] } } ] For details, refer ...
Operating Instructions (Receiver) - Page 5

... AM loop antenna away from the receiver and other components. • Be sure to fully extend the FM wire antenna. • After connecting the FM wire antenna, keep it against lightning. z If you connect the receiver to an outdoor antenna, ground it as horizontal as shown below. Outdoor FM antenna Receiver FM 75Ω COAXIAL AM ANTENNA Ground...
Operating Instructions (Receiver) - Page 6

... a CD player MD deck or Tape deck To the CD jacks MD/TAPE jacks 6 ç Hooking Up the Components Audio Component Hookups MD/TAPE deck INPUT OUTPUT LINE LINE L R IN OUT Required cords Audio cords (not supplied) When connecting a cord, be sure to match the color-coded pins to the appropriate jacks on the...
Operating Instructions (Receiver) - Page 7

z When using the S-video jacks instead of the video jacks (STR-DE545 and STR-SE501 only) Your monitor must also be output through the video jacks. 7 Hooking Up the Components ç Video Component Hookups TV or satellite tuner OUTPUT AUDIO OUT R L VIDEO OUT DVD or LD player OUTPUT AUDIO OUT R L VIDEO OUT S-VIDEO OUT Required cords Audio/video cords (not...
Operating Instructions (Receiver) - Page 8

... to the coaxial jack. ** STR-DE545 and STR-SE501 only. Refer to the instruction manual supplied with an RF OUT jack via an RF demodulator Please note that you cannot connect an LD player's AC-3 RF OUT jack directly to the receiver's digital input jacks. Hooking Up the Components Digital Component Hookups Connect the digital output...
Operating Instructions (Receiver) - Page 9

... 5.1CH INPUT MD/TAPE CD TUNER AUX CINEMA STUDIO A B C SOUND FIELD A. TUNING + MEMORY FM/AM FM MODE MUTING BASS BOOST TONE SPEAKERS REAR/CENTER SUB WOOFER Note See page 13 for details on speaker system hookup. Hooking Up the Components 5.1CH Input Hookups Although this receiver incorporates a multi channel decoder, it is equipped with 5.1CH...
Operating Instructions (Receiver) - Page 11

... disconnected for details. Refer to the receiver's AC OUTLET(s) does not exceed the wattage stated on the receiver. Hooking Up the Components CONTROL A1 hookup (STR-DE545 and STR-SE501 only) • If you have a Sony CD changer with VIDEO OUT jacks, set the command mode to "CD 1" and connect the changer to stereo sources in surround sound.
Operating Instructions (Receiver) - Page 13

...sound will be distorted and will lack bass. • If you use front speakers with low maximum input rating, adjust the volume carefully to avoid excessive output on the components...audio cord (not supplied) One for an active woofer Black (+) (-) Black **IMPEDANCE SELECTOR } Front speaker (R) * FRONT SPEAKERS B }] Front speaker (L) FM...SUB WOOFER AUDIO OUT jack * STR-DE545 and STR-SE501 only....
Operating Instructions (Receiver) - Page 15

... with the SET UP button are reset to your system. Clearing the receiver's memory Before you use your receiver for the first time or when you use your receiver for your system. Before turning on the receiver Make sure that you have hooked up the speakers and turned on page 23). (STR-DE545 and STR-SE501 only). D. 2CH MODE I -
Operating Instructions (Receiver) - Page 21

... both the receiver and the component. If you encounter a problem that the cord(s) used for the connection is (are output from the headphones, the component may not be connected to the receiver correctly. Hooking Up and Setting Up the Speaker System There's no sound from a specific component. , Check that the component is connected correctly to the audio input jacks...
Operating Instructions (Receiver) - Page 22

... the receiver on and off. 2 Function buttons Press one of the buttons and controls on the TV and set the TV's video input to use. Location of Parts and Basic Operations This chapter provides information about the locations and functions of the buttons to select the component you want to match the component you...
Operating Instructions (Receiver) - Page 24

... button / indicator Press to enjoy the CINEMA STUDIO sound effects. button / indicator Press to set the receiver to output sound from page 27. Index name does not appear when only blank spaces have been entered, or it is the same as follows: v Index name of the component or the preset station* v FUNCTION button indication or...
Operating Instructions (Receiver) - Page 38

... D.SKIP TV/ VIDEO SOUND FIELD A.F.D. 2CH/OFF MODE BASS EQ/TONE BOOST MUTING TEST TONE CURSOR MASTER MODE VOL MENU FM MODE MEMORY SHIFT Numeric buttons D.TUNING Brief descriptions of buttons used to receive broadcasts PRESET TUNING +/-: Press to preset stations. Note If "STEREO" does not appear at all even when the FM broadcast is poor, press...
Operating Instructions (Receiver) - Page 42

... deck, then start playback on the receiver, you can find the space character between "] " and "A"). TUNING + MEMORY FM/AM FM MODE MUTING BASS BOOST TONE ç c Function buttons Playback component (program source) Recording component (tape deck, MD deck, VCR) ç: Audio signal flow c: Video signal flow Recording on an audio tape or MiniDisc You can record on...
Operating Instructions (Receiver) - Page 45

... 20 to either SMALL or LARGE (see page 23). (STR-DE545 and STR-SE501 only) , Press MUTING on the receiver. , Make sure that you remedy the problem. Turn off the receiver, eliminate the short-circuit problem and turn on (press SOUND FIELD - No sound is heard from the audio components. , The plugs and jacks are connected correctly and securely...
Operating Instructions (Receiver) - Page 46

... SOUND FIELD - Use direct tuning. , Make sure you connected two sets of the stations is too weak (when tuning in . , Check that the frequency appears ...STR-DE545 and STR-SE501 only). Nothing appears on the display. , When the display turns off immediately after the receiver is turned on the receiver. , Set your TV to the appropriate input mode. , Move your TV away from the audio components...
Operating Instructions (Receiver) - Page 49

...). Unlike previous surround sound fields mainly directed at the reproduction of decoding Dolby Surround, Dolby Pro Logic Surround produces four channels from rear speakers Direct sound Level Early reflections Reverberation Early reflection time Time Dolby Digital (AC-3) This sound format for movie theaters is designed specifically for deep bass is the third audio coding method...
Operating Instructions (Receiver) - Page 54

... 20 Clearing receiver's memory 15 Connecting. See Recording E, F, G Editing. See Recording Effect level 33 H Hookups 5.1CH Input 9 AC power cord 11 antennas 5 audio components 6 digital components 8 CONTROL A1 11 speaker system 13 video components 7 I, J, K Indexing. See Naming L, M Labeling. See Preset tuning radio stations. See Hookups CONTROL A1 10, 11 Customizing sound fields 33...

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