SonyメーカーDAV-DZ20の使用説明書/サービス説明書
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©2007 Sony Cor poration 2-895-955- 12 (2) DVD Home Theatr e System Oper ating Instructions DA V - D Z 2 0.
2 GB To red uce t he r isk of fire or el ectri c shock, do not expo se this appar atus to rain or moisture. Caution – The use of optical in struments with this product will increase e ye hazard. Do not install the applian ce in a confined spa ce, su ch as a bookcase or buil t-in cabinet.
3 GB Welcome ! ......... ........... .............. .............. 2 About Th is Manual ........ ........... .............. 5 This System Can Play the Fol lowing Discs ... .................. .............. .............. 6 Getting Started – BASIC – Step 1: Connecti ng the System and TV .
4 GB Advanced Settings an d Adjustments Locki ng Discs ........ .............. ........... ...... 5 4 (CUSTOM PARENTAL CONTROL, PARENTAL CONTROL) Getting Op tima l Surro und So und for a Room ........ .............. ........... ............. 57 (SPEAKER FORMATION) Using the Setup Displa y .
5 GB • The instru ctions in this ma nual descri be the controls o n the remote . You can also u se the controls o n the unit if they have the s ame or similar n ames as t hose on the r e mote. • The Con trol M enu items may vary depend ing on the ar ea.
6 GB “DVD-RW,” “DVD+RW,” “DVD+R,” “DVD VIDEO,” and the “CD” logos are trademarks. Note about CDs/DVDs The syst em can pl ay CD -RO Ms/ CD- Rs/C D- RWs reco rded in the fo llowing f.
7 GB view the disc by norma l playba ck. Also so me DATA CDs/DATA DVDs created in P acket Writ e format cannot b e played . Music discs encoded wi th copyright protection technologies This pro duct is desi gned to play bac k discs that confo rm t o the C omp act D isc ( CD) stan dard .
8 GB Getting Started – B ASIC – See Un packing in Spe cificat ions, p age 71. Inserting batteries into the remote You can co ntrol the system using th e supplied remote. Insert two R6 (siz e AA) bat teries by matching the 3 and # ends on the batteries t o the marking s inside th e compartment.
9 GB Getting Started – B ASIC – The follo wing is the c o nnection of the unit to the sp eakers and TV. Refer t o the connec tion diagra m below, and r e ad the ad ditional information f rom 1 to 4 on the follow ing pa ges.
10 GB Getting Started – B ASIC – 1 Connect ing the Spe akers Required cords The co nnec tor and co lor t ube of the spea ker co rds ar e the same co lor as the labe l of the jacks to be connec ted. Note • Do not catch the sp eake r cord in sulati on in the S PEAKE R jack.
11 GB Getting Started – B ASIC – 2 Connec ting the TV Required cords SCART (EURO AV) cor d (not supplied) . Be sure to connect the SCART (EURO AV) cord to t h e EURO AV T OUTPUT (TO TV ) jack on the unit. When you co nnec t using th e SCAR T (EURO AV) cord, che ck tha t the TV conf orms to S vid eo or RGB signals .
12 GB Getting Started – B ASIC – 4 Make sure the AM loop antenna (aerial) is connected firml y by pulling soft ly. To connect the FM wire antenna (aerial) Conn ect the F M wir e ante nna (a erial ) to the CO A XIAL FM 75 Ω jack. Note • Be sure to fully e xtend th e FM wir e antenn a (a erial).
13 GB Getting Started – B ASIC – Posit ion ing t he spea ker s For the be st poss ible surrou nd sou nd, all the speak ers oth er th an the sub woo fer s houl d be placed a t the sam e dist ance from the l isten ing positio n ( A ). Howe ver, th is syst em a llows yo u to pl ace the cente r spea ker up to 1.
14 GB Getting Started – B ASIC – 4 Press without inserting a disc. The Se tup D isp la y for sel ect in g the langua ge use d in the on -scree n dis play appe ars. 5 Press X / x to select a language. The system displ ays the menu and subtit les in the se lected language.
15 GB Getting Started – B ASIC – 13 Press X / x to selec t the surround speaker distance from the listening position, then press . Quick Setup is finis h ed. All connection s and setu p oper ations are com plete. To quit the Quick Setup Press DISPL AY in any Step.
16 GB After connecti ng the A C power cord (mai ns lead), the demonst ration appears in the front panel disp lay. Whe n you press " / 1 on the remote, the demonstr ation turns off. Note • W hen you pre ss " / 1 on the unit , the demon stra tion does not turn off.
Getting Started – AD V ANCED – 17 GB You ca n use the speak ers by inst allin g on the wall. Inst alling the sp eakers on a wall 1 Prepare screws (not supplied) that are suitable for the hole on the back of each speaker. See the illustrations belo w.
18 GB Basi c Oper ati ons Depending on the DVD VIDEO or VIDEO CD, some operat ions may be diffe rent or r estr icted. Refer to t h e operatin g instructions supplied with your di sc. 1 Turn o n your TV. 2 Switch the input selecto r on the TV to this system.
19 GB Basi c Oper ati ons * DVD VIDEOs/DVD-RWs/DVD-Rs only. The button can be used except for DivX vid eo files (except f or United Kingdom and North Americ an models) . ** D VD VIDEOs/DVD-RWs/DVD-Rs/DVD+R Ws/ DVD+Rs only. The button can be used except for DivX video files (except fo r United Kingdom and North Ameri can models ).
20 GB Basi c Oper ati ons 3 Press X / x repeatedly until “ATTENUATE” appears in the front panel display, then press or c . 4 Press X / x to select a setting. The default setting is underline d. • “ATT ON” : a ttenua tes the i nput leve l. The o utput leve l is cha nged.
21 GB Basi c Oper ati ons You can ch oose a s u itab le sound m ode for movies o r music. Press MOVIE/MU SIC during playback. Press M OVIE/ MUSI C repe ated ly until the mode you want light s up i n the f ront pa nel dis p lay . The defa ult sett ing is un derlined .
22 GB You ca n take adv anta ge of sur round sound simply by selecting one of the system’s pr e - progr amme d soun d fields . The y bring ex cit ing and po werf ul soun d of m ovie th eaters into your home . Pres s SOUND FIELD. Press SOUND FIELD re peatedly u ntil the so u nd field yo u w ant app ears in the front panel display .
Sound Adjustme nts 23 GB • When the bil ingual broadca st sound is input, Dolby Pro Logic and Do lby P ro Logic II MOV IE/MUSIC are not effective. Using only the fron t speaker and sub woo fer x 2 CHANNEL S TEREO This mode output s the sound from the front lef t and righ t spe akers an d su bwoof er.
24 GB You ca n quickl y locat e a parti cular p oint on a disc by monito ring the pictur e or play ing back slowly. Note • De p ending on the DVD/DivX video*/VIDEO CD, you may not be able to do som e of the operat ions described. * Except for Unite d Kin gdom and North A meric an models.
V arious Functions for Playin g Discs 25 GB You can se a rch a DVD by t itle or chapter, and you can se arch a VIDEO CD/C D/DA TA CD/ DATA D VD by trac k, inde x, or sc ene. A s titles and trac ks are as sign ed uniqu e num bers o n the disc, you c an sel ect the des ired one by ent ering its n umber.
26 GB You c an divi de t he TV scre en int o 9 s ubscre ens and fi nd the de sired sc ene quic kly. 1 Press PICTURE NAVI during playback. The f ollowing display appears.
V arious Functions for Playin g Discs 27 GB To enjoy a disc that is played before by resume playback (Multi-disc Resume) (DVD VIDEO, VIDEO CD on ly) Thi s sys tem st ores the po int where you st opped the disc for up to 40 di scs an d resu mes pl aybac k the next time you i nsert the sam e disc.
28 GB 4 Press c . The cursor moves to the track row [T] (in this case , [01]). 5 Select the t rack you w ant to p rogram. For e xam ple, s ele ct trac k [0 2]. Press X / x to sel ect [02] under [T], then press . 6 To program other tracks, repeat ste ps 4 to 5.
V arious Functions for Playin g Discs 29 GB You ca n have t h e syst em “shu ffle” tra cks. Subs equent “sh uffl ing” may pro duce a di ffe rent playin g order. Note • Same song m ay be played repea tedly during MP 3 playback. 1 Press DISPLAY duri ng playback.
30 GB You can play all the tit les, tracks or albums on a disc or a single t itle, chapter, track, or a lbum repeat edly . You ca n use a co mbin ation of Shu ffle or Progra m Play modes. 1 Press DISPLAY during playback. The Con trol Menu displa y appears.
V arious Functions for Playin g Discs 31 GB A DVD is divid ed into a l o t of sec tions, which make up a pictu re or music fe ature. Thes e sectio ns are ca lled “t itles .” When you p lay a DVD which conta ins severa l titles, you can select t h e title y ou want using DVD TOP MENU.
32 GB • [2: MAIN ] •[ 2 : S U B ] • [2: MAIN +SU B] Note • [2: MAIN], [2: SUB ], and [2: MAIN+S UB] do not appe ar when one audio stre am is recorde d on the dis c. x When playing a VIDEO CD, CD, DA TA CD (MP3 a udio), or DATA DVD (MP3 audio) The default setting is underline d.
V arious Functions for Playin g Discs 33 GB x When playing a DATA CD (DivX vide o) or DATA DVD (DivX vi deo) (except for United Kingdom a nd North American models) Example: MP3 audi o About audio signals Audi o signals recor ded in a disc cont ain the sound eleme nts (cha nnels) shown below.
34 GB Viewing the playing ti me and remaining time in the front panel d isplay You ca n chec k disc inform atio n, suc h as the remaining ti me, total number o f title s in a DVD, tracks in a VIDEO CD, CD, MP3, or file name of a DivX video* usin g the fro nt panel displa y (page 7 8).
V arious Functions for Playin g Discs 35 GB 2 Press DISPLAY repeatedly to change the time information. The displa y and th e kinds o f time that you ca n check de pend on the di sc yo u are playin g.
36 GB Checkin g the date informat ion (JPEG o nly) You ca n chec k the da te info rmat ion du ring playba ck when the Ex if* tag is rec orde d in the JPEG image data.
V arious Functions for Playin g Discs 37 GB If subt itles are recor ded on a disc , you can t urn the subtit les on or off while playin g. If multil ingual subt itles ar e reco rded o n the di sc, you can change t he sub title langu age w hile playin g, or t urn the subtit les on or off whe never you wan t.
38 GB What is MP3/ JPEG? MP3 i s audi o compre ssio n te chnology t hat satisfi es the ISO/MP EG regulat ions. JPEG i s imag e compr essio n technol ogy.
V arious Functions for Playin g Discs 39 GB Playb ack order of MP3 audi o track s or JPEG image f iles The playb ack or der of M P3 audi o track s or JPEG i mage fil es reco rded on a DATA CD o r DATA.
40 GB Selecti ng an MP3 audi o track or album 1 Load a DATA CD o r DATA DVD. The albu ms recor ded on the D ATA CD or DATA DVD appear. When an al b um is being played, its title is s haded. 2 Press X / x to select an a lbum. x When selecting an album Press H to start p laying th e selecte d album .
V arious Functions for Playin g Discs 41 GB 2 Press X / x to select an album. x When selecting an album Press H to start play ing the selec te d album . x When selecting an image Press PICTURE NAVI. Imag es of fil es in th e al bum appear in 16 su bscr eens .
42 GB You ca n play a slide sh ow wit h soun d by firs t plac ing both MP3 an d JPEG fil es in the same album on a DATA CD or DATA DVD. When you play back the D ATA CD or DATA DVD, select [AUTO] mo d e as expl ained below. 1 Load a DATA CD o r DATA DVD.
V arious Functions for Playin g Discs 43 GB 3 Press X / x to selec t a setting. The de fault set ting is unde rlin ed. • [NORMAL] : sets the duration to about 6 to 9 seco nds. • [FA ST ]: se ts the du ra tion sho rte r than [NO RM AL] . • [SLOW1]: sets the dura tion lo nger than [NO RM AL] .
44 GB About DivX Video Files DivX ® is a vide o fil e compres sion te chnology , devel oped by DivX, Inc . This prod uct is an offi cial DivX ® Certified prod uct.
V arious Functions for Playin g Discs 45 GB 3 Press H . The system st arts playing the selec ted album . To select DivX vi deo fil es, see “Select ing a DivX vi deo fil e” (page 4 5). To go to the next or previous page Press C / c . To turn off the display Press DVD MENU repeat e dly.
46 GB With P BC (Play back Co ntrol) fu nction s, yo u can en joy simpl e in tera ctiv e operat ions, sea rch funct ions, and o ther such oper ations . PBC play back a llows yo u to play VI DEO CD s interacti v ely by fo llowing the menu on the TV screen .
T uner Fu nctions 47 GB You can pres et 20 FM s tations , and 10 AM stations . Before tu n ing, make su re to t urn down the vol ume to minimum. 1 Press FUNCTION rep eatedly until “TUNER FM” or “ TUNER AM” appears in the front panel display. 2 Press and hold TUNING + or – u ntil the auto scanning starts.
48 GB Preset radio st ations in the syste m’s memory first (see “Prese tting Ra dio Stati ons” ( page 47)). 1 Press FUNCTION repeatedly u ntil “TUNER FM” or “TUNER AM” appears in the front panel display. The last re ceived sta tion is tu n ed in.
T uner Fu nctions 49 GB 6 Create a name by using the cursor butt ons. Press X / x to sel ect a c harac ter , then press c to move the cursor to the next positio n.
50 GB You ca n cont rol your TV (Son y only ) with the supplied r emote. Controlling TVs wit h the remote You ca n contro l the TV by usi ng foll owing butt ons. * Use these butt ons while press ing the TV button. - is for se lecting a channel numbe r greater th an 10.
Other Op erations 51 GB Operating the THEATRE SYNC funct ion Poin t the re mote to the dire ction of TV and t his unit, then pr ess THEATRE SYNC once. If thi s function does not work, change the transmit time. The transmit time varies depe nding on th e TV.
52 GB You ca n set the syst em to tu rn off at a pres et time, so y ou can fa ll asleep liste ning to music. You ca n preset the time in 1 or 10 -minut es incr ements. 1 Press SY STEM MENU . 2 Press X / x repeatedly until “SLE EP” appears in the fron t panel display, then press or c .
Other Op erations 53 GB You can deactivate the buttons on the unit (exce pt fo r " / 1 ) for pr eventi ng mi sop eratio n, such as c h ild misc hief (child lock function). When the child l ock fu nction is acti vated , the button s on the unit are locked and “ ” lights up in the front pan el disp lay.
54 GB You ca n set tw o kinds of playba ck res trict ions for the desire d dis c. • Cus tom P aren tal C ontrol You ca n set p laybac k rest rict ions so t hat the syst em will no t play in appropr iate dis cs. • Par ental Co ntr ol Playback of some DVD VIDEOs can be limited accor ding to a p redetermined l e vel such as the ag e of the us ers.
Adv anced Settings a nd Adjustments 55 GB To play a disc for which Custom Parental Control is set 1 Insert the disc for which Custom Parental Control is set. The [CUSTOM PARENTAL C ONTROL] disp lay ap pear s. 2 Enter your 4- digit password using the number buttons, then press .
56 GB 4 Enter or re-enter y our 4-digit p assword using the number buttons, then press . The dis play for sett ing the playbac k limitatio n level appears. 5 Press X / x to select [S TANDARD], then press . The selection items for [ S TANDARD] are disp laye d.
Adv anced Settings a nd Adjustments 57 GB Changi ng the passwo rd 1 Press DISPLAY while the system is in st op m od e. The C ontrol Menu di splay appe ars. 2 Press X / x to selec t [PARENTAL CONTROL], then press . The options for [ PARENTAL CONT ROL] appear.
58 GB 5 Press C / c to select a setting. • [STANDARD]: when installi ng all the speake rs normal ly. • [NO CENTER]: when installing th e front and surr ound speake rs. • [NO SURROUND]: when insta lling the cent er a nd fron t speake rs. • [FRONT ONLY]: when installi ng the front s peakers.
Adv anced Settings a nd Adjustments 59 GB By usi ng the Setup Dis play, y ou c an ma ke vari ous ad justment s to items suc h as pict ure an d sound . For a n ove ra ll li st of Setu p D isp lay i tem s, se e page 82. Displa yed it ems v ary dependi ng o n the coun try model.
60 GB To reset all of the [SETUP] settings 1 Select [RESET] in Step 4 and press . 2 Select [YES] using X / x . You ca n al so quit the pr ocess and ret urn to the Contro l Me nu disp lay by select ing [NO] he re. 3 Press . All the set tings explai ned on pag es 60 to 64 return to the default se ttings.
Adv anced Settings a nd Adjustments 61 GB Choose set tings according to the TV to be conn ected. Select [SCREEN SETUP] in the Setup Display. For d eta ils , se e “U sing th e Se tup D isp la y” (page 59). The defaul t settings a re underlined. x [TV TY PE] Selects th e aspect ratio of the connecte d TV (4:3 standa rd o r w ide).
62 GB Use this to set up playback re lated and o ther settings. Select [CUSTOM SETUP] in the Setup Displa y. For details , see “Using the S etup Disp lay” (page 5 9). The defa ult set tings are under lined . x [PAUSE MO DE] (DVD V IDEO/DVD-R/ DVD-RW only) Selec ts the pict ure in pa use mod e.
Adv anced Settings a nd Adjustments 63 GB To obtai n the best poss ible su rrou nd sou nd, se t conne ction o f the spea kers and thei r dis tance fro m your li sten ing posi tion. T hen us e the t est tone to adjust th e level a nd the bal a nce of t he speakers to the same level .
64 GB • Do no t place t he surrou nd spe akers farth er away from your lis tening p osition than the f ront sp eakers. • Depending on the input stream, the [DISTANCE] setting may not be effective . x [LEVEL (FRO NT)] You ca n vary the leve l of fron t spe akers as follows.
Adv anced Settings a nd Adjustments 65 GB You can return th e syste m paramete rs, suc h as preset sta tions, to the default set tings. 1 Press " / 1 to turn on the system. 2 Press x , A , and " / 1 on the unit at the same time. “COLD RESET” appears in the fr o nt panel displa y and the de faul t settin gs are ret urne d.
66 GB On power sources • Unplug the unit from th e wall outle t if you do not intend to use it for an exte nded period of tim e. To disconnect the cord, pull it out by the plug , never by the cord. On placement • P lace the sys tem in a location wit h adequat e venti lation to preven t heat build-up in the s y stem.
Additional I nformation 67 GB On handling discs • To ke ep the d isc cle an, h andl e th e dis c by its edge . Do not touch th e surf ace. • Do n ot stick pa per or tape on t he disc.
68 GB Color irregul arity occ urs on the TV screen. The subwoofe r and t h e front s peakers i n this system are magn etic ally shie lded to pre vent magne tic leakage.
Additional I nformation 69 GB • The distan ce be tween t he remot e and the uni t is too fa r. • The remo te is not p ointed a t the r emo te sens or on the unit. • The batte ries in the re mote ar e weak . The disc does no t play. • There is no disc inser ted.
70 GB You cannot p erform so me functions such as Stop, Search, Slo w-motion Play, or Re peat Play. • Depending on the disc, you may not be able to perform som e of the oper ations ab ove. See the opera ting instr uctio ns that came with the dis c. Messages do not appear on the TV screen in the language you w ant.
Additional I nformation 71 GB When the self -diagnosis function is activated to preven t the sy stem fro m malfunctioning, a 5- character service nu mber (e.g., C 13 50) with a combinatio n of a le tter and 4 digits a p pears on the TV scr een o r fron t pa nel di splay.
72 GB Other mo dels: 531 – 1,60 2 kHz ( with th e interval set at 9 kHz) 530 – 1, 610 k Hz (wit h the inter val set at 10 kH z) Antenna ( aerial) AM loop antenna (aerial) Intermediate freq uency 450 kHz Video section Outputs VIDEO: 1 Vp- p 75 oh ms R/G/B: 0.
Additional I nformation 73 GB Albu m Sectio n of a mus ic piece or an imag e on a data CD contai ning MP 3 audi o track s or JPEG files . Chap ter Subdivisi o n of a t itle on a DVD. A title is compos ed of sev eral cha pters . DivX ® (exce pt for U nited Kingd om and Nor th Ame rican mod els) Digi tal video t echno logy cre ated by D ivX, Inc.
74 GB DVD+RW A DVD+RW (plus RW) is a recordable and rewrit able disc. DVD+RWs us e a record ing format tha t is compara ble to the DVD VIDEO format. DVD-RW A DVD-R W is a reco rdable and rewritab le disc that is th e same size a s a DVD VIDEO. The DVD -RW ha s two dif fere nt mode s: VR m ode and Video mode.
Additional I nformation 75 GB VIDEO CD A comp act disc t hat cont ains m oving picture s. The pi cture da ta use s the MPEG 1 for mat, one of a worldwid e standa rd of digital co mpression technolo gy. The pictur e data is co mpres sed to about 1/ 140 of i ts origin al siz e.
76 GB The lang uage spelli ngs conf orm to the IS O 639: 1 988 (E/ F) stan dard . Parental Contro l Area Code List Language Co de List Code Language Code Language Code Language Code Languag e 1027 Afa.
Additional I nformation 77 GB For more information, r efer to th e pages indicated in pare n theses. Fron t panel A " / 1 (on/standby) (18) B A (open/close) (18) C Disc operation (18) D FUNCTION .
78 GB Front pan el display About the indications in the front panel display A Lights up when the tim e information of a title or chapter appears in the front panel display. (DVD only) (34) B Lights up whe n an NTSC disc is loaded. C Lights up when a station is received.
Additional I nformation 79 GB Use the Control Menu display to selec t a function and to vi ew related info rmation. Press DISPLAY repeat edly to turn on or chan ge th e Contro l Men u disp lay as fo llow s: Cont rol Menu di splay The Con trol Menu disp lay 1 and 2 w ill show diff erent i tems depe ndin g on the di sc ty pe.
80 GB 1) Displays the scene number for VIDEO CDs (PBC is on), track number for VIDEO CDs/CDs, album number for DATA CDs/DATA DVDs. DivX video album number for DATA C Ds/DATA DVDs (Except for United Ki ngdom and Nort h Amer ican mode ls).
Additional I nformation 81 GB * Excep t for United Kingd om and North America n models. ** T hese i tems are not displ ayed wh en playing a DA TA CD/D ATA DVD with DivX vi deo fi le (exce pt for Uni ted Kingdom a nd North American mo dels).
82 GB Y ou can set th e follo wing item s with the D VD Setup Display . The orde r of the disp layed items may b e dif ferent from the a ctual disp lay .
Additional I nformation 83 GB Y ou can set the fo llowi ng items with SYSTEM MENU on th e remote. System Menu List System me nu DEMO DEMO ON DEMO OFF DIMM ER DI MMER O FF DIMMER ON ATTENUAT E 3) ATT O.
84 GB Numerics 16:9 6 1 4:3 LE TTER BO X 61 4:3 P AN SCAN 61 5.1 Chan nel Surround 32 A A/V SYNC 37 ALBUM 25 Albu m 73 ANGLE 36 AT T E N U AT E 2 0 A UDIO 60 A UDIO DRC 6 2 B B ACKGR OUND 61 Batt erie.
85 GB SYSTEM MENU 16 , 19, 48, 52, 53 System men u list 83 T TEST TONE 64 THEA TRE SYNC 50 TIME/ TEX T 25 TITL E 2 5 Ti t l e 7 4 TRACK 2 5 T rack 74 TRA CK SELECTION 62 T roublesho oting 6 7 TV TY PE.
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87 GB Remote control ANGLE 5 (36 ) AUDIO 4 (31) CLEA R ef (25, 50 , 60) D.TUNING wf (48) DISC SKIP* eg DISPLAY 2 (34, 49) DVD MENU wh (31, 44 , 50) DVD TOP MENU qf (31) DYNAMIC BASS wd (51) ENTER wg (.
Sony Corporation Pr inted in China (2).
デバイスSony DAV-DZ20の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Sony DAV-DZ20をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはSony DAV-DZ20の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Sony DAV-DZ20の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Sony DAV-DZ20で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Sony DAV-DZ20を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はSony DAV-DZ20の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Sony DAV-DZ20に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちSony DAV-DZ20デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
