HitachiメーカーV-21の使用説明書/サービス説明書
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DIGITAL CAM ERA V-21W / V-21 OPERATING INSTRUCTIONS Please read Please read Please read Please read this operating instructi ons carefully for proper operati on, this op er.
A IMPORTANT SAFETY INSTRUCTIONS 1. Read Instructio ns 1. Read Instructio ns 1. Read Instructio ns 1. Read Instructio ns All the s afety and opera ting ins tructions should be rea d before the product is operated. 2. Retain Instruct ions 2. Retain Instruct ions 2.
B 12. Grounding or P olariza tion 12. Grounding or P olariza tion 12. Grounding or P olariza tion 12. Grounding or P olariza tion This product i s eq uipped wi th a three-wire grounding-t ype plug a plug having a thi rd (grounding) pi n. This plug will on ly fit into a groundin g-type powe r outlet.
C 21. Replaceme nt Parts 21. Replaceme nt Parts 21. Replaceme nt Parts 21. Replaceme nt Parts When replacement part s are req uired, be s ure the s ervic e technici an ha s used repl acement part s speci fied b y the man ufacture r or h ave the same char acteristics as th e orig inal part.
D WICHTIGE SICHERHEITSANWEISUNGEN 1. 1. 1. 1. Alle Alle Alle Alle An we isun ge n lese n. Anweisungen lesen. Anweisungen lesen. Anweisungen lesen. Vor Betrieb des Erzeugnisses sollten a lle Sicherheit s-und Bedienungsa nleitungen geles en werden. 2. Die Anwei sungen aufb ewahren.
E 11. 11. 11. 11. Stromversorgung Stromversorgung Stromversorgung Stromversorgung Dieses Erzeugnis s ollte nur an der au f dem Typenschi ld angegeb enen Stromversorgungs art bet rieben werd en.
F 20. 20. 20. 20. Besch Besch Besch Besch ä digung, die digung, die digung, die digung, die Wartung Wartung Wartung Wartung erfordert erfordert erfordert erfordert Ziehen S ie den Stecker di eses Erzeugni sses aus der St eckdose und wenden Si e sich an q ualifi ziertes Wartungs personal, wenn ei ne der folgenden Bedingungen vorliegt : a.
G MISES EN GARDE IMPORTANTES 1. Lire 1. Lire 1. Lire 1. Lire les instructions les instructio ns les instructio ns les instructio ns Lire toutes les instruct ions de s é curit é et de fonct i onnement avant de fa ire fonctionner l ’ apparei l. 2. 2.
H 12. 12. 12. 12. Mise Mise Mise Mise á la la la la terre terre terre terre ou ou ou ou polaris ation polaris ation pol arisat ion polaris ation L ’ apparei l est dot é d ’ une fich e trifilaire ave c mise á la te rre, dont la tro isi é me broche assure la m ise á la terre.
I e. Si l ’ appare il est tomb é ou qu ’ il a é t é endommag é . f. Si l ’ appareil affiche une nett e modificat ion de ses performances, cela s i gnifie qu ’ il a be soin d ’ê tr e r é par é .
K Contents Composition(i ncluding accessor ies) ・・・・・ 1 Outline and features ・・・・・・・・・・・・・・・・・・ 2 W arnings and cautions w hen using ・・・・・ 4 Not.
1 Composition (including acce ssories) When unpa c king the camera, chec k for the followi ng items and ac cessories..
2 Outline and features The V-21W / V-21 is a new conc ept 2/3- inch 60 0,000 / 620,000 Pix el CC D cam era that stres ses f undamental camer a perform ance. Advance d func tions are r ealize d by the n ew sing le chip dig ital sig nal proces sor th at impr oves gra dation response, c olor r eproduci bilit y and perc eived resolut ion.
3 Outline and featur es ■ ■ ■ ■ Extensive operationa l convenience ● Program mable op eration s witches with functions assig ned acc ording to app licatio n. ● Auto white and shad ing com pensation coupled with le ns extender . ● Gain, det ail, gam m a and other settin gs can be stored in 4 sc ene files for eas y recall.
4 Warnings and cautions when u sing W ARNING ■ ■ ■ ■ Vie wfinder lens hazard ● Do not point t he e yelens towar d the sun or other bright l ight sourc e. There is dan ger of ph ysical burns an d loss of eyesight. ● Do not plac e the vie wfinder with the le ns point ed toward the s un.
5 Note w hen using NOTE ********** CCD characteristic phenomena * ********* The f ollowing t ypes of phenomena are inna te char acteristic s of a char ge coupled d evice (CCD) and ar e not m alfunc tions. Be aware of thes e when using a CCD cam era f or broadcast or other dem anding a pplicat ions.
6 Facility names and functions 1 Viewfi nder connec tor Connect the access ory 1.5-inc h vie wfinder or th e separate ly sold G M-51 5- inch vie wfinder. 2 Viewfi nder hori zontal loc k lev er Secures th e side to side pos ition a djustm ent of the 1.
7 Facility names and functions 12 Auto wh ite/black balanc e switch A W B: Select for aut omatic white ba lance adjustm ent. Set the W HITE BA L switch 20 to A or B to stor e the adj ustm ent in respec tive m emor y A or B. ABB: Selec t for autom atic bl ack balance adjustm ent.
8 Facility names and functions 17 Power s witch 〔 VTR ST DBY/SAV E 、 CAM ON/ OFF 〕 Left: (VT R:STDBY 、 CAM :ON ) Both cam era and VT R power on and recordi ng starts. Center: (VT R:SAVE 、 CAM: ON) Camer a power on, VT R power s ave mode Right: (VTR:S AVE 、 CAM:OFF) Camer a power off , VTR power sav e mode.
9 Facility names and functions 24 Scene fi le LEDs Light to in dicat e the sc ene file se lected b y the Scene F ile buttons 25 . 25 Scene F ile buttons Select f rom am ong 4 scene f iles. 26 Function bu tton Used for changing se ttings ( e.g., deta il am ount).
10 Facility names and functions 32 Video outp ut connec tor (BNC) Compos ite video sig nal output ( 1 Vp-p/7 5 Ω ). 33 Monitor output c onnector (BN C) Video si gnal outp ut for monitor (1 Vp-p/75 Ω ).
11 Facility names and functions 43 Rear co ver Contains con nections for batt ery and ex tension adapter, etc . 44 DC IN connector (X LR, 4P) Connect the separat ely sold AC a dapter f or operating from AC power. 45 Intercom connector (XLR, 5P) Connect in tercom headset (MT -12MF) when using the RU-Z1/RU-Z 2 A.
12 Facility names and functions 48 Brightnes s contro l Adjusts viewfinder screen br ightness . Does not aff ect camer a output signal. 49 Cont rast cont rol Adjusts v iewfinder screen c ontrast. Does not aff ect camer a output signal. 50 Peaking c ontrol Adjusts viewfind er video c ontours f or easier f ocus adjustm ent.
13 Lens installation 1. Raise the lens le ver a nd rem ove the m ount cap. 2. Align the lens c enter m ark with the i ndent a t the upper part of the l ens m ount and inst all the l ens 3. Lower the lens lever to secure th e lens. 4. Engage the c able with the cab le clam p and connect it to the le ns conn ector.
14 Lens flangeback adjustme nt When operat ing a zoom lens, if the f ocus is not precisely al igned at bot h t he t ele photo and wide a ng l e extremes o f the l ens, the flan geb ack (distance fro m the lens mounting pl ane t o t he focal pl an e) is adjusted.
15 White shading adjustment White shad in g adjustment is reco mmended aft er rep lacing the len s. The adjustmen t relates to the camera vertica l colorati on. If the lens in cludes an extender, the sha ding can be optimiz ed f or both extender on an d of f mod es.
16 White shading adjustment 5. FUNC △ ▽ Operate the Fu nction buttons t o produc e the Full Funct io n mode Special Set pag e, then shift t o t he WHT Shad in g page. 6. At the W HT Shading p age, shift the cursor to Auto Setup. 7. Press the < directi on button for ab out 1 sec ond to conduct A W B .
17 Camera adapter installation 1. Align th e ada pter with the camera gui de and guide pi n. Attach t he adapt er and engage the co nne ctor. 2. Tighten t he scr ews provided with t he handle to se cure t he ca m era adapt er t o the camera.
18 Microphone installation Mic holder attachment Attach the M H -Z3 microp ho ne holder (se parat ely sold). Microphone Install the (s eparately sold) MC-Z2/Z3 microp ho ne and C-300MA micr ophone cable as follows. 1. Attach the M C -Z2/Z3 microphone to the mi c ho lder.
19 Tripod mounting Use the acce ssory TA-Z3 tripod ada pt er t o mo unt the camera on a t r ipo d. 1. Securely at t ach t he tripod ada pter to the tripod. Shift the ad apter screw position t o obt ain the best balanc e. The adapter can acc ept t w o types of screws.
20 Shoulder pad position The shoulder p ad can be shifted up to 15 mm in eit he r direction from the c enter (factory ) position. The position c an be adjust ed f or comfortable o peration. 1. Loosen 2 screws. 2. Slide th e pad f orward or rearwar d t o t he best posit ion.
21 Anton-Bauer battery pack A nton-Bauer batter y pack Procure the sep arately sold battery hold er to operate the camera fro m an Anton-Baue r battery. 1. Use 4 screws to at t ach t he bat t ery holder to the rear of the camera adapter. Note:The o ptional b utter y holder c onnectin g cable is requ ired.
22 GM-51 5-inch v i e w fi nder attachment Use the se paratel y sold AT -30 vie wfinder ada pter when insta lling the G M-51 5- inch vie wfinder. 1. Raise the lock lever of the AT-30 h orizont ally and rem ove th e vie wfinder mounti ng scre w fr om the AT-30.
23 GM-51 5-inch v i e w fi nder attachment 3. Removal Disconnect the v ie wfind er cabl e. Tur n the AT-30 loc k lev er B counter-c loc k wise and pull the release k nob to a llow rem ovin g both the GM-51 and AT - 30.
24 VTR connection VTR docking Examples of compatible VTRs Sony DNV-5 (BETACAM SX ) BVV-5 (BET ACAM SP ) PVV-3 ( BET ACAM SP2000PRO ) DSR-1 ( DVCAM ) Matsushita (Panasonic) AU − 45H ( M .
25 VTR connection VTR ty pes and connections System Main VTR VIDEO(VT R) AUDIOLEVEL CA-Z31 CA-Z32 VTR inner module BETACAM CO MP -60dB −−− −−− IM-Z3D BVV-5, DNV-5 −−− −−− IM-Z3.
26 VTR connection VTR power save W hen the camera PW R sw it ch is set t o VTR Save, t he VTR types operat e as follow s . VTR Operation BNV-5,BVV-5 PVV-3, DSR-1, AU-45H,AJ-D80 The VTR goes to power sav e mode to avoid batt ery depletion BR-S422, BR-D40 All VTR operations inhibited.
27 Pow er supply W hen the CA-Z31/CA-Z32 is installed, power can be supplied as follows. Set the Power Select switch accordingly. 1. Connect the separately sold AP-60 AC adapter to the DC IN connector. 2. Connect the camera base station or VTR t o t he CCU/VTR connector .
28 Vie w finder adjustm ent Viewfinder installati on 1. Turn the lock lev e r as indicat ed by the arrow to secure the v iewfinder gu ide. 2. Turn the viewfin der l oc k lever fully counter-c lockwise. 3. Align th e 2 v i ewfinder gui de p i ns with the c amera guid e holes and insert the v i ewfinder.
29 View finder adjustm ent Position a djustme nt 1. Turn the loc k lev er in the arrow directio n t o loo sen the horizonta l lo ck. 2. Turn the lock scr ew in the arrow d irecti on t o lo osen the front to rear lock. 3. Adjust the v i ewfinder le f t to right an d f ront to rear pos it i ons for comfortab le v i ewing.
30 Viewfinder adjustment Visibility adjustmen t The focus can b e fine adjusted to i ndiv idual preference. 1. Adjust the ca mera fo cus. 2. Turn the visibi l ity ring to adjust t he f ocus of the viewfin der i m age. Press the Fl ip-u p button and raise the ey ecup.
31 Iris adjustment Auto, m anual and instant au to are s electa ble. Instant aut o func tions duri ng m anual oper ation to adjust the iris automatic all y while the bu tton is pressed. 1. A u tomatic Set the lens Iris switch t o A. T he ir is is adjusted autom atical l y to accomm odate camer a video s ignal ch anges.
32 Zoom and macro operation Zoom operation Zoom operation c an be set for m otorized or manua l. 1. Motori zed zoom Set the zoom switch to S ( servo) and oper ate the T -W switch. Press W for wide a ngle and T for telep hoto. Press s trongl y for fas t and gentl y for s low operat ion.
33 Optical filter selection The c orrect optic al filter acco rding to the scene light s ource nee ds to be selec ted in or der to o btain cor rect white balance.
34 Video gain selection The gain c an be r aised t o enab le im ages in loc ations with inade quate l ighting. N otice th at noise increas es as the gai n is ra ised. 1. The vie wfinder im age dark ens when li ghting is insuff icient. If th e lens is auto ir is, the iris o pens complete ly.
35 White and black balance adjus tment White balanc e adjustment W hite balance is best adj usted in the sequ ence AW B (auto whit e bala nce), AB B (auto b lack balanc e), the n again AW B. Readjustm ent is nor mall y not req uired e ven at po wer off /on.
36 White and black balance adjus tment 4. Adjust th e lens ir is. 5. Set the W hite B AL switch to A or B, then set t he Auto W /B BAL switch to AW B. T he switch ret urns to ce nter and whit e balanc e is adj usted aut om aticall y. 6. During adjus tment, the foll owing m essages appe ar on the viewfin der screen.
37 White and black balance adjus tment A uto white balance error me ssages If auto white balanc e adjus tment f ails, th e follo wing err or m essages appear on the v iewf inder scree n for abou t 6 seconds. Mes sage Cause Correction AUTO WH ITE : NG CHANGE TO CAM TRY AGA IN Output s witch set to BAR.
38 White and black balance adjus tment Black balance a djustm ent Black balance req uires adjustm ent in the f ollo wing situ ations. ● Equipm ent being used f or the firs t time ● Equipm ent idle f or an ex tended p eriod ● Large ch ange of am bient t emper ature ● Gamm a setting ch anged A uto black balance adju stment 1.
39 White and black balance adjus tment < Note > ● Observe t hat the lens c onnector is enga ged and the iris is clos ed. ● The iris closes au tom atically t o block the ligh t during black balance adjustm ent. ● During b lack balanc e adjus tment, the gain cir cuit is s witche d autom aticall y.
40 Electronic shutter s etting Shutter modes The s electable electro nic shutter m odes and spee ds are as follo ws. Mode Shutter s peeds Applicat ions Standard 1/60, 1/250, 1/500, 1/1000 and 1/2000 s econd Clear im ages of quick ly moving o bjects LOCK SCAN (Lockscan ) 1/50.
41 Electronic shutter s etting 2. The m ode and spee d change s eque nce is indicat ed belo w. 1/60 → 1/250 → 1/50 0 → 1/1000 → 1/ 2000 CC FRM ← Var.1/ *** Lock scan mode sett ing The loc k sc an mode avo ids flic ker in scenes showin g a com puter monitor screen.
42 Scen e file W hen taking scenes having diff erent condit ions, t he settin gs need t o be op timi zed for eac h scene. T he scen e file function e nables s ettin g the con ditions f or each scene b efor ehand and s toring them in mem ory for inst ant reca ll at the requir ed tim e.
43 Camera ID setting An identif icat ion (ID) des ignatio n for the c amer a can be as signed b y using th e ID SET page of the sett ing m enu. ID No. : A 3 place alphanum eric code ass igned to e ach cam era. Convenient when co ntrolli ng multi ple cam eras from a single per sonal co mputer .
44 Genlock The c amera can be o perat ed from exter nal synchro nizatio n. The m ode is au tomatic ally s witched f rom internal to exter nal s ync when an external s ync sign al is s upplied. Setting 1. Set the Ou tput/A uto Knee s witch to Bar and press the F uncti on button to disp lay the Bar Funct ion page in the viewf inder.
45 Setu p card A separ ately sold s etup card can be us ed f or storing the setti ng menu da ta. The data can t hen be used to quick ly restore the proper se tup. ● A sm all size ge neral pur pose mem or y c ard (C ompac t Flash 2M) can be us ed as th e setup c ard.
46 Setu p card Setup card data operat ion The Mem or y Card pa ge of th e setting m enu is used for s toring and retr ieving s etup card d ata. < Note > The Mem or y Card pa ge cannot be used d uring camer a control pan el oper at io n. Saving data to card 1.
47 Setu p card SETUP CARD FILE NO DATE TIME 1 97.01.01 12:00 2 97.06.01 12:00 3 97.02.22 12:00 4 97.03.01 12:00 SAVE FILE? YES ->PUSH (LEFT) CANCEL->PUSH (UP) 5.
48 Vie w finder indications Lighted indicators The follo wing lig hte d indic a tors appear abo ve and be low the vie wf inder scr een. ! B T S T :T ALL Y (T a ll y) ‥‥‥‥‥‥‥ B :B.
49 Vie w finder indications In addit ion to the video im age, the viewfi nder dis pla y s m essages related t o cam era settings and oper ating s tatus, center an d safet y zone m ark ers and other inf orm ation. ● W hen set to on at the s etting m enu VF D ispla y page, setti ng item s are ind icated at t he top and bottom edges of the screen.
50 Vie w finder indications Display description Item Descript ion Extender (No indicati on) E W : Extend er of f : Extend er on : Wide setting ( × 0.
51 Vie w finder indications Check mode Set the s witch to Chec k and pr ess the Check button. T he CAM m ode is retur ned abou t 3 seco nds after releasing t he butt on. ● All item s of the CAM m ode are ind icated at the top and bottom edges of the s creen (see C AM m ode descripti on).
52 Vie w finder indications One line indicating mode The s witch oper ation eff ect is in dicated a t the 2n d line f rom the bot tom . Display description Switch Des cription Effect (set t o Zebra) Z.
53 Status Indication of Viewfinder Screen BARS mode (Note) Abo ve item s are s et at the Fu nction (B AR m ode) m enu. ’98.06.01 12:00 HTACHI ***** .
54 Function menu screen Settings w i th Function menu Preparation men u Settings can be changed by using the Function m enu. The princ ipal settings are as follows.
55 Function menu screen CA M mode (Output sw itch) Standard menu SETUP CARD FILE NO DATE TIME 1 97.01.01 12:00 2 97.06.01 12:00 3 97.02.22 12:00 4 97.03.
56 Function menu screen CA M mode (Output sw itch) Full menu MASKING <MEMORY> HUE SA T LINEAR R -25 16 R-G 86 Y -64 60 G-B -36 G 0 0 B- R 26 C 0 1 8 G -R 6 9 B -52 0 B-G 2 3 M 67 0 R -B 5 MASTER.
57 Function menu screen Setup card menu detail Top menu SETUP CARD FILE NO DATE TIME 1 97.01.01 12:00 2 97.06.01 12:00 3 97.02.22 12:00 4 97.03.01 12:00 LOAD FILE->PUSH (RIGHT) SAVE FILE->PUSH &.
58 Function menu screen BA R mode (Output sw itch) TIME/DATE YEAR :00 MONTH :01 DAY :0 1 HOUR :00 MINUTE :00 TIME/DATE SET BAR FUNCTION GL SET :-> ID SET :-> TIME/DATE :-> ID DSP :ON DATE :Y.M.D TIME :ON AUDIO TONE:ON GL SET H.PHASE :0 SC COARSE :0 ゚ SC FINE :0 ID SET ID NO.
59 Function menu screen Function menu setting items Rectangles indicate initialized settings (pres s buttons sim ultaneously). 1. Function 1 (Scene 1 to 4) main menu (corresponds to scene file) CONTRAST OFF ⇔ NORMAL ⇔ HIGH Selec t Norm al or High when dark s cene com ponents are dif ficult to see due e.
60 Function menu screen 1.1 DTL (Scene 1 to 4) sub-menu (corresponds to scene file) DTL LEVEL OFF ⇔− 128 ⇔ 0 ⇔+ 127 Sets detail am ount. DTL FREQ SOFT ⇔ STANDARD ⇔ SHARP SOFT : Set to lo.
61 Function menu screen 3. VF Display menu SAFETY/CENT OFF ⇔ SAFET Y ⇔ CENTER ⇔ BOT H EXT ENDER OFF ⇔ ON UPPER MID OFF ⇔ ZOOM ⇔ SH UTTER ⇔ REC TIME ⇔ SHT/REC-T UPPER RIGHT OFF ⇔ FOCUS ⇔ BA TTERY FILTER OFF ⇔ ON W HITE BAL OFF ⇔ ON GAIN OFF ⇔ ON AUDIO IND OFF ⇔ ON IRIS OFF ⇔ ON 4.
62 Function menu screen 4-2 DTL sub-menu LEVEL DEP − 128 ⇔− 90 ⇔ 0 ⇔+ 127 Dark c om ponent detail can be set in the range of -128 to +127. CRISP − 128 ⇔− 110 ⇔ 0 ⇔+ 127 Average com ponent detail can be set in the r ange of - 128 to +127.
63 Function menu screen 4-4 Knee/clip sub- menu KNEE POINT − 128 ⇔ 0 ⇔+ 127 Sets the level where knee f unction begins oper ating. KNEE SLOPE − 128 ⇔ 0 ⇔ +10 ⇔+ 127 Sets knee r esponse slope. W HITE CLIP − 128 ⇔ 0 ⇔ +32 ⇔+ 127 Sets the white clip level.
64 Function menu screen 4-7 System sub-menu ASPECT 16:9 ⇔ 4:3 V-21W only VF DTL CONT MENU ⇔ AUT O VIDEO(VT R) COMP ⇔ Y/C ⇔ VBS ⇔ RGB Also Auto (when inner m odule is connected) Select acc ording to connected VT R. 1.COMPONENT 2.Y/C(S-VHS) 3.
65 Function menu screen 5. BA RS Function sub-menu GL SET Execute GL SET sub- menu. ID SET Execute ID IND sub- menu. TIM E/D ATE Execute TIME/DAT E sub-m enu.
66 Studio sy stem operation Connection with RU-Z2 sy stem The c amer a can be connec ted into a system conpris ing an RU-Z2 c am era base s tation and RC-Z2A / Z21A c am era control panel to enable rem ote oper ation of the c am era control functions .
67 Studio sy stem operation Camer a control f rom personal com puter The cam era can be controlled by RS-232C signals from a personal c omputer . In this case, the JU-C20 RS-232C Level Converter or the J U-Z2 Junc tion Unit is required.
68 Studio sy stem operation Connection with Ru-Z1 system The cam era can be connected into a studio system com prising an RU-Z1 rem ote operation unit and RC-Z1A /Z11 cam era control panel to enable rem ote operation of the c amer a control f unctions.
69 Studio system operation A uto setting w ith RU-Z2A / RU-Z1A (plug & play )s No System Baud rate Audio level Video output Battery t ype 1 RU-Z1 62.
Per s ona l compu ter MULT I SYSTEM SET UP CARD Mi croph on e MC- Z 2 Micro phone ME-66 MC-Z3 Mi croph on e h older MH-Z3 Mi croph on e cabl e C-300MA Zoom lens Tri po d adaptor TA-Z3 .
71 Service information Connector pin di agrams Came ra Remote (4 pin f em ale) MIC IN (3 pin fem ale) 1 2 3 4 1 2 3 LENS (12 pin fem ale) VF (8 pin m ale) 1 2 3 4 11 5 7 12 6 8 9 10 C B H E F D A G Pi.
72 Camera adapter ( CA-Z31/CA- Z32) DC IN (4 pin male) INTERCOM (5 pin m ale) 1 2 3 4 1 5 3 4 2 Pin Signal 1S H I E L D 2T 3G N D 4R 5R Pin Signal 1G N D 2N C 3N C 4 +12V input.
73 Service information CCU/VTR (28 pin m ale) < CA-Z31 > A B C D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 17 18 20 19 21 22 23 24 CCU/VTR (26 pin m ale) < CA-Z32 > AB 123456 789 1 0 1 1 12 13 14.
SAFETY INSTRUCTIONS Carafully read all safety messages in this manual and safety Instructions on y our equipm ent. Follow recommended precautions and safe operating practices.
HITA CHI DENSHI, LTD. 1, Kanda Izumi-cho Chiyoda-ku, T okyo 101-0024, Japan Phone: 03-5821-5311, FAX: 03-5821-5394 HITA CHI DENSHI A MERICA, LTD.* Headquarters and New York Office 150 Crossway s Park Drive, W oodbury, New York 11797, U .S.A. Phone: 516-921-7200, FAX: 516-496-3718 Chicago Office 450 East Devon Ave.
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Hitachi V-21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Hitachi V-21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。Hitachi V-21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。Hitachi V-21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。
Hitachi V-21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Hitachi V-21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、Hitachi V-21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Hitachi V-21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。