Instruction/ maintenance manual of the product STR-DH520 Sony
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model name1[STR-DH520] [4-263-361- 11 (2)] filename[D:NOR M'S JOBSONY HASO120020S TR-DH520_PMRF 024263361112 _GBGB01CO V_STR- DH520-U2.fm] masterpage:Right ©2011 Sony Corporation 4-263-361- 11 (.
2 GB D:NORM'S JOBSONY HASO 120020STR-DH520_PMRF 02426 3361112_GBGB02REG_STR- DH520-U2.fm4-263-361- 11 (2) masterpage: Left STR-DH520 4-263-361- 11 (2) T o reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture .
3 GB D:NORM'S JOBSONY HASO 120020STR-DH520_PMRF 02426 3361112_GBGB02REG_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) 12) Use only with the cart, st and, tripod, bracket, or table specified by the manufacturer , or sold with the apparatus.
4 GB D:NORM'S JOBSONY HASO 120020STR-DH520_PMRF 02426 3361112_GBGB02REG_STR- DH520-U2.fm4-263-361- 11 (2) masterpage: Left STR-DH520 4-263-361- 11 (2) Disposa l of waste batteries (applicable in .
5 GB D:NORM'S JOBSONY HASO120020STR-DH520_PMRF 02 4263361112_GBGB 01CO V_STR- DH520-U2T OC .fm masterpage: Right STR-DH520 4-263-361- 11 (2) T able of Contents About This Manual . ...................... ......... ........ 4 Supplied accessorie s .
6 GB D:NORM'S JOBSONY HASO120020STR-DH520_PMRF 02 4263361112_GBGB 01CO V_STR- DH520-U2T OC .fm masterpage: Left STR-DH520 4-263-361- 11 (2) Supplied accessories • Operating Instruct ions (this .
7 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Description and location of parts A ? / 1 (on/standby) (page 29, 40, 47) B INPUT SELEC T OR (page 36 - 39, 41, 51) C D isplay panel (page 8) D R emote control sensor Receives signals from remote control.
8 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Indicators on the display panel LH LFE NEO : 6 DTS-HD MSTR HI RES LBR LC SL S PL II x z HDMI - ES DTS T rueHD 96/2 4 SLEEP D .
9 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) G Dolb y Pro Logic indicator Lights up the respectiv e indicator when the receiver performs Dolby Pro Logic processing.
10 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) * You mu st connect the HDMI TV OUT or MONITOR OUT jack to your TV to watch the selected input image (page 21).
11 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Use the supplied remote control to o perate this receiver and other equipment. The remote control is assigned to operate Sony audio/ video equipment.
12 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) T o use the b uttons printed in pink Hold down SHIFT ( O ), then press the button printed in pink that you want to use.
13 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) * If you press AV ? / 1 ( A ) and ? / 1 ( B ) simultaneously, the receiver an d connected equipment will turn off (SYSTEM STA NDBY).
14 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) * If you press AV ? / 1 ( A ) and ? / 1 ( B ) simultaneously, the r eceiver and connected equipment will turn off (SYSTEM S TANDBY).
15 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB03DES_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) T o contr ol other Son y equipment Be sure to hold do wn SHIFT ( O ) to acti v ate the b uttons printed in pink (page 12).
16 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Getting started Y ou can enjoy your audio/video equipment connected to the receiv er by follo wing the simple steps below .
17 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Connections 1: Installing the speakers This receiver allows you to use a 7.1 channel system (7 speakers and one subwoofer).
18 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Tips • When you connect a 7.1 channel speaker system with two surround back sp eakers, all the angles A should be the sam e.
19 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Connections 2: Connecting the speakers 10 mm (13/32") 1.
20 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) * When you connect a subwoofer with an auto standby function, turn off the fu nction when watching movies.
21 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Connections 3: Connecting the TV A Audio cord (not supplied).
22 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) * To enjoy the TV broadcast in multi channel surround sound fr om the speakers connected to the r eceiver , you can ma ke either one of the following connections: – connect B .
23 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Connections • DSD signals of Super Audio CD are not input and output.
24 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) A Optical digital cord (not supplied) B Coaxial digital cord .
25 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Connections A HDMI cable (not supplied) Sony recommends that y ou use an HDMI- authorized cable or Sony HDMI cable.
26 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) A HDMI cable (not supplied) Sony recommends that y ou use an HDMI- authorized cable or Sony HDMI cable.
27 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Connections A HDMI cable (not supplied) Sony recommends that y ou use an HDMI- authorized cable or Sony HDMI cable.
28 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 4b: Connecting the audio equipment Notes • Before connecting cords, be sure to disco nnect the AC power cord (mains lead).
29 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Preparing the Receiver 6: Connecting the AC power cord (mains lead) Connect the AC power cord (mains lead) to a wall outlet.
30 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Selecting the speaker pattern Select the speaker pattern according to the speak er system which you are using. 1 Press AMP MENU.
31 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Preparing the Receiver Using AUTO CALIBRA TION (Europe, A us.
32 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 3 Set up the optimizer microp hone. Place the optimizer microphone at your seating position. Use a stool or tripod so that the optimizer mi crophone remains at the same height as your ears.
33 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Preparing the Receiver The table below provide s measurement status shown on the display panel. * The co rresponding speaker indicator lights up in the display panel during measurement.
34 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) When err or codes appear 1 Check the problem of the error.
35 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB04CON_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Preparing the Receiver You can select the calibration type you want and then perform the Auto Calibration. 1 Press AMP MENU.
36 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 4 Press V / v repeat edl y to select “A UT O xxx * ”. The test tone is output from each speaker in sequence.
37 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Basic Oper ations 4 Pla y bac k the sour ce. 5 Press MASTER V O L +/– or 2 +/– to adjust t he v olume . You can also use MASTER VOLUME on the receiver.
38 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 1 Press the corresponding input butto n which y ou want t o chec k the informatio n. 2 Press AMP MENU , then pre ss DISPLA Y repeatedl y .
39 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) T uner Operations Listening to FM/AM radio You can listen to FM and AM broadcasts through the built-in tune r.
40 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) You can enter the frequency of a station directly by using the numeric buttons. 1 Press TUNER r epeatedly to select the FM or AM band.
41 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) T uner Operations Presetting FM/AM radio stations You can store up to 30 FM and 30 AM stations as your favorite stations as preset stations.
42 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB05BA S_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 1 Press TUNER r epeatedly to select the FM or AM band. You can also use INPUT SELECTOR on the receiver. 2 Tune to the preset sta tion you want to create a n index name for (page 41).
43 GB D:NORM'S JOBSONY HASO12002 0STR-DH520_PMRF 02426336 1112_GBGB06ENJ_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Enjoying Surr ound Sound Selecting the sound field This receiver can create mult i channel surround sound.
44 GB D:NORM'S JOBSONY HASO12002 0STR-DH520_PMRF 02426336 1112_GBGB06ENJ_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) x HD-D.C.S. (HD Di gital Cinema Sound) This mode is Sony’ s new innov ati ve home theater techn ology using the late st acoustic and digital signal processi ng technologies.
45 GB D:NORM'S JOBSONY HASO12002 0STR-DH520_PMRF 02426336 1112_GBGB06ENJ_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Enjoying Surr ound Sound You can only select the following sound fields if the headphones are connected to the receiver.
46 GB D:NORM'S JOBSONY HASO12002 0STR-DH520_PMRF 02426336 1112_GBGB06ENJ_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Digital audio format s that this recei v er can decode depend on di gital audio output jacks of the connected equipment.
47 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB07BRA_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) “BRA VIA” Sync Features Resetting sound fields to the default settings Be sure to use the buttons on the receiver to perform this operation.
48 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB07BRA_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Preparing for the “BRA VIA” Sync The receiver is compat ible with the “Control for HDMI-Easy Setting” function.
49 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB07BRA_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) “BRA VIA” Sync Features Playing back equipment with one.
50 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB07BRA_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) T urning off the receiver with the TV (System Power -Off) When you turn the TV off, using th e POWER button on the TV ’s remote control, the receiver and the connected equipment turn off automatically .
51 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Adv an ced Oper ations Switching between digital and analo.
52 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 3 Press V / v repeat edly to select “A. ASSIGN”, “V . ASSIGN” or “H. ASSIGN”, then pres s or b . 4 Press V / v repeat edly to select the following sett ing, then press or b .
53 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Adv an ced Oper ations Using the setting menu You can customize the receiver by making various adjustments with settin gs menu.
54 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) The follo wing o ptions are a v ailab le in each m enu. For details, see t he referencing pa ge in the parentheses.
55 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Adv an ced Oper ations Surround speakers size b) [SUR SIZE] LARGE, SMALL LARGE Front high speakers size b) [FH SIZE] LARGE, SMALL LARGE Front left speaker distance b) [FL DIST .
56 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) a) Europe, Aust ralia and Taiwan models only. b) Depends on the speaker pattern setting, some pa rameters may not be available.
57 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Adv an ced Oper ations You can adjust the leve l of each speaker manually. x T. T O N E Lets you adjust the speaker levels while listening to the test tone from your seating position (page 35).
58 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Tips • The “LARGE” and “SMALL” settings for each speaker determine whether the internal sound processor will cut the bass signal from tha t channel.
59 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Adv an ced Oper ations You can adjust the tonal qualit y (bass/treble level) of the front speakers. x B ASS x TREBLE Note This function does not work when “A.
60 GB D:NORM'S JOBSONY HASO1 20020STR-DH520_PMRF 0242 63361112_GBGB08AD V_STR- DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) You can make the required settings for equipment connected to the HDMI jack. x CTRL.HDMI Lets you turn the Control for HDMI function on or off.
61 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Using the Remote Con trol Notes • This fun ction does not w ork when TUNER inpu t is selected. • If you use the Auto standby mode and the Sleep T imer at the same time, the Sleep T imer has priority .
62 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) 3 Referring to the f ollowing table, press the corresponding button for the categ ory you want, then rele ase AV ? / 1 .
63 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Additional Inf ormation Precautions On safety Should any solid object or liquid fall into the cabinet, unplug the rece iver and have it checked by qualified personnel before operating it any further.
64 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) T roubleshooting If you experience any of the following difficulties while usi ng the receiver, use this troubleshooting guide to help you remedy the problem.
65 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Additional Inf ormation There is no sound fr om a specific equipment. • Check that the equipment is connected correctly to the audio input jacks for that equipment.
66 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) No sound is output fr om the receiver and TV speaker . • Check the setting of “AUDIO.OUT” in the HDMI menu (page 60).
67 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Additional Inf ormation When the receiver is in standby mode, there is no image output fr om the TV .
68 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) The Control for HDMI function does not wor k . • Check the HDMI connection (page 21, 22). • Make sure “CTRL.
69 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Additional Inf ormation Specifications AUDIO POWER SPECIFICA.
70 GB D:NORM'S JOBSONY HASO120020STR-DH5 20_PMRF 024263361112_GB GB09REM_STR-DH520-U2.fm masterpage: Left STR-DH520 4-263-361- 11 (2) Video section Inputs/Outputs Video: 1 Vp-p, 75 o hms COMPONENT VIDEO: Y: 1 Vp-p, 75 ohm s P B : 0.7 Vp-p, 75 ohms P R : 0.
71 GB D:NORM'S JOBSONY HASO120020STR-DH520_PMRF 02 4263361112_GBGB 01CO V_STR- DH520-U2IX.fm masterpage: Right STR-DH520 4-263-361- 11 (2) Additional Inf ormation Index Numerics 2 channel 43 5.
D:NORM'S JOBSONY HASO120020STR-DH520_PMRF 02 4263361112_GBGB 01CO V_STR- DH520-U2IX.fm masterpage: Left Sony Corporation Printed in M alaysia model name1[STR-DH520] [4-263-361- 11 (2) ].
An important point after buying a device Sony STR-DH520 (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-DH520 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-DH520 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sony STR-DH520 you will learn all the available features of the product, as well as information on its operation. The information that you get Sony STR-DH520 will certainly help you make a decision on the purchase.
If you already are a holder of Sony STR-DH520, 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-DH520.
However, one of the most important roles played by the user manual is to help in solving problems with Sony STR-DH520. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sony STR-DH520 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
