Instruction/ maintenance manual of the product STR-DE725 Sony
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3-864-484- 11 (1) FM Ster eo FM-AM Receiver Operating Instructions 1998 by Sony Corporation STR-DE725.
2 W ARNING T o prevent fir e or shock hazard, do not expose the unit to rain or moisture. T o avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only . Do not install the appliance in a confined space, such as a bookcase or built-in cabinet.
3 About This Manual The instructions in this manual ar e for model STR-DE725. Check your model number by looking at the upper right corner of the front panel.
4 Hooking Up the Components This chapter describes how to connect various audio and video components to the r eceiver . Be sure to r ead the sections for the components you have before you actually connect them to the r eceiver .
5 Hooking Up the Components WIRELESS REAR SPEAKER 4 Ω 8 Ω + + – – – + + – – + + – SPEAKERS FRONT REAR CENTER WOOFER AUDIO OUT VIDEO OUT VIDEO IN VIDEO OUT VIDEO IN DVD / LD IN VIDEO OU.
6 Hooking Up the Components VIDEO 2 IN OUT WIRELESS REAR SPEAKER 4 Ω 8 Ω + + – – – + + – – + + – SPEAKERS FRONT REAR CENTER MONITOR WOOFER AUDIO OUT VIDEO OUT VIDEO IN VIDEO OUT VIDEO .
7 Hooking Up the Components IN OUT IN OUT WIRELESS REAR SPEAKER 4 Ω 8 Ω + + – – – + + – – + + – SPEAKERS FRONT REAR CENTER WOOFER AUDIO OUT VIDEO OUT VIDEO IN VIDEO OUT VIDEO IN DVD / .
8 Hooking Up the Components WIRELESS REAR SPEAKER 4 Ω 8 Ω + + – – – + + – – + + – SPEAKERS FRONT REAR CENTER WOOFER AUDIO OUT VIDEO OUT VIDEO IN VIDEO OUT VIDEO IN DVD / LD IN VIDEO OU.
9 Hooking Up the Components AC OUTLET S-LINK CTRL A1 b WIRELESS REAR SPEAKER 4 Ω 8 Ω + + – – – + + – – + + – SPEAKERS FRONT REAR CENTER WOOFER AUDIO OUT VIDEO OUT VIDEO IN VIDEO OUT VI.
10 Hooking Up the Components Other Hookups S-LINK CONTROL A1 hookup • If you have a S-LINK CONTROL A1-compatible Sony CD player , tape deck, or MD deck Use a CONTROL A1 cord (not supplied) to connect the S-LINK CTRL A1 jack on the CD player , tape deck, or MD deck to the S-LINK CTRL A1 jack on the r eceiver .
11 Hooking Up and Setting Up the Speaker System BALANCE SOUND FIELD ON/OFF SET UP EQ ON/OFF INPUT MODE VIDEO 1 DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE VIDEO 2 DVD/LD TV/DBS MUTING BALANCE LR 5.
12 Hooking Up and Setting Up the Speaker System WIRELESS REAR SPEAKER IMPEDANCE SELECTOR FRONT SPEAKERS B WIRELESS REAR SPEAKER 4 Ω 8 Ω + + – – – + + – – + + – SPEAKERS FRONT REAR CENT.
13 Hooking Up and Setting Up the Speaker System Speaker impedance T o enjoy multi channel surround, connect fr ont, center , and rear speakers with a nominal impedance of 8 ohms or higher , and set the speaker IMPEDANCE SELECTOR to “8 Ω .” Check the instruction manual supplied with your speakers if you’re not sur e of their impedance.
14 Hooking Up and Setting Up the Speaker System Depending on the shape of your room (etc.), you may wish to place the rear speakers behind you instead of on the side walls. One advantage of this placement is that you can use a pair of large floor standing speakers matching your front speakers.
15 Hooking Up and Setting Up the Speaker System 60 90 20 A B 30 B C C A z About speaker sizes (LARGE and SMALL) Internally , the LARGE and SMALL settings for each speaker determine whether or not the internal sound processor will cut the bass signal from that channel.
16 Hooking Up and Setting Up the Speaker System p Sub woofer selection (WOOFER) Initial setting : YES • If you connect a sub woofer , select “YES”. • If you do not connect a sub woofer , select “NO”. This activates the Dolby Digital (AC-3) bass redir ection circuitry and outputs the LFE signals fr om other speakers.
17 Hooking Up and Setting Up the Speaker System Adjusting the speaker volume Use the r emote while seated in your listening position to adjust the volume of each speaker . Note This unit incorporates a new test tone with a frequency center ed at 800 Hz for easier speaker volume adjustment.
18 Hooking Up and Setting Up the Speaker System MASTER VOLUME 1/u EQ ON/OFF INPUT MODE DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE MUTING BALANCE LR 5 0 1 3 9 7 46 2 8 10 • • • • • • .
19 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 for that component. / Check that the cord(s) used for the connection is (are) fully inserted into the jacks on both the receiver and the component.
20 Fr ont Panel Parts Description Location of P arts and Basic Oper ations This chapter pr ovides information about the locations and functions of the buttons and contr ols on the front panel. It also explains basic operations. 1 1/u switch Press to turn the r eceiver on and off.
21 Location of Parts and Basic Amplifier Operations 2 35 6 4 7 8 1 EQ ON/OFF INPUT MODE VIDEO 1 DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE VIDEO 2 DVD/LD TV/DBS MUTING BALANCE LR 5 0 1 3 9 7 46 2.
22 Location of Parts and Basic Amplifier Operations v 0 !£ !™ !¢ 9 !§ !∞ !¡ !¶ EQ ON/OFF INPUT MODE DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE MUTING BALANCE LR 5 0 .
23 Location of Parts and Basic Amplifier Operations !£ The following buttons operate the built-in tuner . For details, see “Receiving Broadcasts” starting fr om page 34. DIRECT TUNING button Enables Direct T uning (see page 35). SHIFT button Selects a memory page for preset stations.
24 EQ ON/OFF MODE SOUND FIELD ON/OFF GENRE CURSOR MODE EQ ON/OFF INPUT MODE DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE MUTING BALANCE LR 5 0 1 3 9 7 46 2 8 10 • • • • • • • • • .
25 Enjoying Surround Sound Selecting a Sound Field Y ou can enjoy surround sound simply by selecting one of the pre-pr ogrammed sound fields accor ding to the program you want to listen to. 1 Press SOUND FIELD ON/OFF to turn on the sound field. The current sound field is indicated in the display .
26 Enjoying Surround Sound GENRE : CINEMA Selecting a Sound Field Sound field Effect Notes Software with multi channel surr ound audio signals is played according to the way it was r ecorded. Software with 2 channel audio signals, is decoded with Dolby Pro Logic to cr eate surround ef fects.
27 Enjoying Surround Sound GENRE : VIR TUAL 3D (continued) Sound field Effect Notes Uses 3D sound imaging to create 3 sets of virtual r ear speakers from the sound of the fr ont speakers without using actual rear speakers.
28 Enjoying Surround Sound DIGITAL a PRO LOGIC S.WOOFER STEREO RDS D.RANGE EQ MONO TA NEWS INFO OPTICAL AC-3 RF MPEG DTS DUAL L.F.E. L LS C S R RS MEMORY 12 3 4 5 6 7 8 9 Understanding the Multi-Channel Surr ound Displays 1 OPTICAL Lights up when the source signal is a digital signal being input through the OPTICAL terminal.
29 Enjoying Surround Sound 1/0 2/0* 3/0 2/1 3/1 2/2 3/2 2/0** DOLBY DIGIT AL [1/0] DOLBY PRO LOGIC STEREO PCM** DIGITAL a C DOLBY DIGIT AL [2/0] DOLBY DIGIT AL [3/0] DOLBY DIGIT AL [2/1] DOLBY DIGIT A.
30 Enjoying Surround Sound Customizing Sound Fields By adjusting the surround parameters and the equalization of the front and center speakers, you can customize the sound fields to suit your particular listening situation.
31 Enjoying Surround Sound CENTER LEVEL (CENTER) Initial setting : 0 dB Lets you adjust the level of the center speaker . • The level can be adjusted in 1 dB steps fr om –10 dB to +10 dB. SUB WOOFER LEVEL (WOOFER) Initial setting : 0 dB Lets you adjust the level of the sub woofer .
32 Enjoying Surround Sound Front speaker bass adjustment (Level/Fr equency) 1 Use / to select the level (dB) or frequency (Hz). 2 Use / to adjust. Repeat until you achieve the sound you desire. • The level can be adjusted ± 10 dB in 1 dB steps. • The frequency can be adjusted fr om 100 Hz to 1.
33 Enjoying Surround Sound Adjustable parameters for each sound field Sound EFFECT WALL REVERB LFE D .RANGE REAR REAR CENTER WOOFER field GENRE MODE LEVEL TYPE TIME MIX COMP BAL.
34 PRESET TUNING + / – TUNING + / – FM/AM FM MODE MEMORY DIRECT TUNING SHIFT TUNER VIDEO 1 DIRECT TUNING VIDEO 2 DVD/LD T V PHONES SPEAKERS SET UP SURROUND EQUALIZER CURSOR MODE MEMORY PRESET – .
35 Receiving Broadcasts 5 3 1 bb 0 5 2 0 1 bbbb Brief descriptions of buttons used to receive br oadcasts PRESET TUNING +/–: Pr ess to scan all preset radio stations. DIRECT TUNING: Pr ess this button to enter a frequency dir ectly using the numeric buttons.
36 Receiving Broadcasts Automatic T uning For details on the buttons used in this section, see “Brief descriptions of buttons used to receive br oadcasts” on page 35. 1 Press TUNER to light the button up. The last received station is tuned in. 2 Press FM/AM to select the FM or AM band.
37 Receiving Broadcasts T uning to preset stations Y ou can tune the preset stations either of the following two ways. Scanning the preset stations 1 Press TUNER to light the button up. The last received station is tuned in. 2 Press PRESET TUNING + or PRESET TUNING – repeatedly to select the pr eset station you want.
38 SET UP TUNER CURSOR MODE SLEEP EQ ON/OFF INPUT MODE DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE MUTING BALANCE LR 5 0 1 3 9 7 46 2 8 10 • • • • • • • • • • • • • • .
39 Other Operations EQ ON/OFF INPUT MODE DIRECT TUNING BASS BOOST SOUND FIELD GENRE MODE MUTING BALANCE LR 5 0 1 3 9 7 46 2 8 10 • • • • • • • • • • • • • • • • • •.
40 Other Operations Recording on a video tape Y ou can record fr om a VCR, a TV , or an LD player using the receiver . Y ou can also add audio from a variety of audio sources when editing a video tape. See your VCR or LD player ’s instruction manual if you need help.
41 Additional Information T roubleshooting If you experience any of the following difficulties while using the receiver , use this troubleshooting guide to help you remedy the pr oblem. Also, see “Checking the connections” on page 18 to verify that the connections are correct.
42 Additional Information No sound or only a very low-level sound is heard from the r ear speakers. / Make sure the sound field function is on (pr ess SOUND FIELD ON/OFF). / Select a sound field from the CINEMA or VIR TUAL 3D genr es (except MONO MOVIE and STEREO MOVIE) (see page 26).
43 Additional Information Specifications AUDIO POWER SPECIFICA TIONS POWER OUTPUT AND TOT AL HARMONIC DISTOR TION: With 8 ohm loads, both channels driven, fr om 20 - 20,000 Hz; rated 100 watts per channel minimum RMS power , with no more than 0.09% total harmonic distortion fr om 250 milliwatts to rated output.
44 Additional Information FM tuner section T uning range 87.5 - 108.0 MHz Antenna terminals 75 ohms, unbalanced Sensitivity Mono: 18.3 dBf, 2.2 µ V/75 ohms Stereo: 38.3 dBf, 22.5 µ V/75 ohms Usable sensitivity 1 1.2 dBf, 1 µ V/75 ohms (IHF) S/N Mono: 76 dB Stereo: 70 dB Harmonic distortion at 1 kHz Mono: 0.
45 Additional Information Glossary Surround sound Sound that consists of thr ee elements: dir ect sound, early reflected sound (early reflections) and r everberative sound (reverberation). The acoustics of the surrounding space af fect the way these three sound elements ar e heard.
46 Additional Information Press CURSOR MODE repeatedly to light up Press or to select Then or to select See page SURROUND indicator EFFECT LEVEL depends on sound mode (in 21 steps) T ables of Settings Using the CURSOR MODE and SET UP buttons Y ou can make various settings using the CURSOR MODE, SET UP , and cursor buttons.
47 Additional Information Press SET UP repeatedly to display Press or to select Then or to select See page SPEAKER SETUP FRONT SPEAKER LARGE or SMALL 14 CENTER SPEAKER LARGE, SMALL, or NO REAR SPEAKER.
48 Additional Information Index A AC-3. See Dolby Digital (AC-3) Adjusting brightness of the display 40 equalizer 31 speaker volumes 17 surround parameters 30 Automatic tuning 36 B Basic amplifier operations 20~23 Battery 4 C Changing display 22 effect level 30 Checking the connections 18 Clearing receiver’s memory 18 Connecting.
An important point after buying a device Sony STR-DE725 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sony STR-DE725 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sony STR-DE725 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sony STR-DE725 you will learn all the available features of the product, as well as information on its operation. The information that you get Sony STR-DE725 will certainly help you make a decision on the purchase.
If you already are a holder of Sony STR-DE725, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sony STR-DE725.
However, one of the most important roles played by the user manual is to help in solving problems with Sony STR-DE725. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sony STR-DE725 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
