Sharp-Optonica - RX-1 - PCM Digital Audio Adaptor (user`s manual).
Contents
1. 7 t oo m m A m ew Sc ENO RODI C BA 5 S Q o B A TONY 0 e 7 4 8 ee Que E kI MA SA A Tj i 1 a o JU NI 1 OO 9 2A YLA t e 059 ERS BIT H ka 072 M ndur DA LA 4 b emn ci jndino 20 rd BEC 2 l econ sas coe EES ERE TAL e 720 4 ER qvo YEON indu wie seme g 1 E 880 88 80 H Og O88ROB n B ad em rri ow 8 B ur ma ee ct qeu X from a record amp 93 SSTQ I 01381 11109 OVO EF ce om me mente nme mem on Tm hem ema ame o Tes ht A Al A nme amem Am ans n 7 cw m wa AI A dA ener mmi ve Memes o AHH NO Our 1110 ST T Ne ee th2. PITIS ITEE MAMAS OMe lt AT ur At taia ai tala A a DUC ver NESNT Ae a E OO ki PN er 1 v M CONTROLS AND FUNCTIONS 10 11 12 13 14 19 Power switch gt Push in the switch to on position and push it in again to off poston Headphone iack Accepts any headphone with 3 ohm impedance Power indicator Lights up when the power is on Playback indicator Lights up when mode switch 12 is in play position Record indicator Lights up when mode switch 12 is in record position PCM Tape indicator The lamp indicates the PCM Tape similar to a video cassette tape is being played back Anti Digital dubbing indicator Some PCM Tapes have anti iubbing signals that interfere with digital dubbing The indicator shows the existence of such signals on the tape and dubbing is therefore inoperative Error correction signal indicators These show the level of signal correction being made on the prerecorded PCM tapes A single lamp will ight up when signal correction is made once If two signal corrections are being made both the single and double lamps wil tight oa Optimum indicators The fewer the indicators are on the better the
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4. a dt MOS ja ad qoM M se s l icu l 6 it l MY H peat M l 2 ki i Lon ng connect bbi 33 5 OT Og adi Se e subconnector Re igital dubbing connection Coaxial iD type subconnector dot tional D type subconnector Coax d cable RX iW cord mode ki ud TB wp tem cmm RS 9 5 tattira fi Diagram 6 cable provided Videclloutput al cable provided 112 VIDE E IN VC 6300 Pia ao 7 SPECIFICATIONS Power source Power consumption Dimensions weight nput terminals MIC input terminal Line input terminal Video input terminal Qutput terminals Dubbing output terminal Line output terminal Video output terminal External sync output terminal Digital input output terminal Auxiliary Video Cassette recorder Frequency response Dynamic range Harmonic distortion Wow amp flutter Level variation Crosstalk Error correction capability Standard Recording format Transmission channeis Sampling frequency Number of quantizing bit Data transmission rate Accessories AC 220V 50Hz 38 W 430 W x 141 H x 380 D 15 5 kg Low impedance microphone Minimum input
5. Harmonic Distortion Cassette tape deck Open reel tape deck PCM system ESSE Tis Pg AE Aere AR ppp Wow and flutter reel t Cassette tape deck Open ape deck PCM system ES G 9 9 ilies 1 EIL LI O 72727279230779 Specifications X 1 Power Source AC220V 50Hz AC 100V 50 60117 Wow amp flutter Below measurability Dimensions 430 W x 141 H x 360 D mm Harmonic distortion 0 0396 1 kHz Weight 15 5 kg Dynamic range 90 dB Recording format PCM recording in PAL standard Reproducing frequency TV signals NTSC standard range DC 20kHz Transmission channels 2 channels Others Line input jack Sampling frequency 44 100 kHz 44 056 kHz Line output jack Number of Headphone jack quantizing bit 14 bit Video input output jack Data transmission rate 2 625 Mbps 2 643 Mbps Digital signal input output jack Error correction Dubbing jack capability 99 99 596 Crosstalk More than 60dB 1 kHz 10 kHz Level variation Below measurability External synchronized input out put jack Note Information in parentheses is for NTSC standard The manufacturer reserves the right to varv specifica tions design or use alternative materials as my be deemed necessary or desirable at any time any such change or variation being of a kind as not to reduce quality performance or appearance LED Level Indicator MIC
6. Input Jack Mode Record Play Switch Error Monitor Switch Power Switch PCM Tape Indicator B Headphone Jack Anti Digital Dubbing Indicator 6 Line Output Level Control e Q Power Indicator Error Correction Signal Line Input Level Control MIC Input Level Control Q Playback Indicator Indicators Optimum Control 6 Record Indicator eo Optimum Indicators Headphone Volume Control 77 TRS TIS TIT VUE TIT T REEN 7 Xi KONTU F pf Done CRIT Bac M M UK E MEME UM CNET G U uc T 7 7 TE RSet IEA CER de Y i 4 imu i FETIL EEE j ep THO m E UN 7 U 7 7 ODE AS QUSE SANI E ECER HEE BER EE EE uq uuo du ate o GEE 2 en ES E cM EER REBERE E sett ARRERA E REE A 1 ti ti IM s 5 us EI Nd i NIN ES EE i 3 du RS ENG ore S E ES SEHR oT 1 es iis id BASS Saas athe AT NS PEDE 44 152 SIS x Pu eum ME D 3 EN HS Lor 3 E i RES 2 SANG GE i S Um 4 3e jis 3
7. ideal matching point best suited to any tvpe of video cassette recorder VHS or Beta This means that the ingenious unit promises you spectacular sound quality anytime anywhere The adaptability level is conveniently displayed on LED indi cators for your quick accurate reference OPTONICA s Unique Drop Out Proof System with 99 995 Perfection OPTONICA by fully utilizing a sophisticated memory func tion has developed a superb drop out system for dutiful accurate reproduction of the original sound Necessary data for drop out proofing are input at the time of recording Then at the time of plaving correction is done to near perfection The result is a stunning 99 995 correction capability The way to record or reproduce on PCM Digital output Microphones PCM unit Video cassette recorder Digital output Audio output Reproduction Video cassette PCM unit recorder Amplifier Speakers Compact and Light Culmination of Modern Design ing Unlike the general concept that PCM adaptors are bulky and heavy OPTONICA s RX 1 is as compact as a stereo amplifier weighing only 15 5 kg Sharp s innovative semiconductor technology has changed the whole concept Stunning 90dB Dynamic Range Digital recording system means very low distortion and noise resulting in a stunning 90dB dynamic range thanks to 14 bit quantizing Extra High Fidelity Recording and Playback Because the audio signals are conve
8. level 3mV l 43iBm or loss Phone connector cannon connector XLA 32 31 unbalanced Minimum input tevel 04 18d8m or less Input impedance 47k ohms Phono connector PL 259 type connector Input level 1 0 0 2 Vp p 175 ohms termination Phono connector Output level 1 0 7 0 2 Vp p 75 ohms termination Qutout impedanca 25 ohms Phone connector cannon XLR 3 32 connector unbalanced Output level 500mV 4d8m or more for phono connectors 1 23V r4dBmij or more for cannon connectors 800 6 loaded impedance Matching loaded impedance 10x ohms or more for phono connector 500 ohms or more for cannon connectors Phono connector PL 259 connector Output level 1 0 0 2 Vp p 75 ohms termination Output impedance 75 ohms Phono connector PL 259 connectors TTL level D type subconnector TTL level Sharp VC 6300 VHS format Beta format U matic format 2 20 000Hz 08 0 0396 1kHz Below measurable value Below measurable value More than 60dB 99 995 EIAJ standard 625 line PCM recording in 625 line standard TV signals Two channels 44 1kHz 14 bit 2 625 Mops Phono type connecting cable Phono type PL 259 type coaxial cable x 2 75 ohms Owner s manual Specifications are subject to change without notice e The manufacturer reserves the right to vary specifications design or use alternative materials as may be deemed necessary or desirable at any time any such chan
9. 5 EAS rg jit The RX 1 unveils a completely new audio era with a wide range of features and unique innovative ideas A Dream Unit for Adventurous Audiophiles Sharp s advanced digital technology is backed up by innovative semiconductor technology This has been combined with its sophisticated audio system expertise well demonstrated in the OPTONICA series Now OPTONICA is announcing a new audio era with the in troduction of a dream unit PCM digital audio adaptor RX 1 Throughout its continuous relentless efforts in this field OPTONICA has developed the versatile compact PCM adaptor which can easily be connected to any home video Featuring its impressive breakthrough in drop out proofing capability the RX 1 is the ideal solution to analog audio barriers that critical audiophiles have long been confronted with The PCM Pulse Code Modulation system sets audio technol ogy on a completely new course well beyond conventional analog audio It is the system which converts analog signals into digital signals for storing the data on the videotape First sound signals are microscopically divided and then encoded into either 1 presence or O absence and recorded onto videotape This eliminates noise which could very often be mixed with the music signals at the time of recording Adaptable to Any Type of Video Cassette Recorder Having adopted Optimum Control function the RX 1 permits you to search for the
10. ORTON aceti dtr T s ea 6 RECO RTOS NETTES TETTE TT eS 6 Bonn E 7 Conne CELOTIS 5 7 ERR e GES 8 13 Copec eano core cba apu OCS ee hee eb ae GES Bees SEATAN Mos 14 Tir ablestio OU AEE ee ird lea Re Ce SE eee SANE E EH dede rt 15 Note Audio visual material may consist of copyrighted without the authority of the owner of the copyright Piease refer to relevant law in your country NOr s which must not Da recorded PCM Digital Audio Adaptor RX 1HPCM DIGITAL AUDIO ADAPTOR OPTONICA Congratulations You are now the owner of the OPTONICA RX IHPCEM digital audio adaptor To fully appreciate the benefit of this quality audio product it is advised that you read and thoroughly understand this operational manual before using FEATURES Meets Electronics Industries Association of Japan standard 625 line This digital audio adaptor is manufactured to meet the EIAJ standard arranged for 625 line areas and can be used on VHS Beta and U matic formats 2 Optimum control function This control function maintains the RX iHat the optimum playback performance ievel when used with any video cassette recorder It compensates for a minor per formance deviation in video cassette recorders 3 Equipped with p
11. aptor Always keep the video heads clean When recording PCM Tape optionally available is recommended When recording is completed iet the video cassette recorder run for several seconds before disengaging the record button When recording right after the previously recorded programmes let the video cassette recorder run in playback mode for several seconds before pressing the record button Proper Recording Level Set the average recording level at about 9d8 Setting of the average recording level at more than 9dB produces gocd PCM ra Check the level indicators and adjust the Line input control 18 or MIC input control 17 to set the average recording level as close as possibile to 9 d3 cr a normal recording ing results But NEVER allow the Over level indicator to light up Vary the average recording level below or over 9dB depending on the type of record ing Set peak recording level below the OVER level but do not set it too low otherwise a poor S N ratio will result JI DUBBING There are basically three methods of dubbing using this digital audio adaptor Dubbing Can Be Performed Using TV Signals Os em Push on the power switch S vitch the mode selector to play position Playback tha video cassette recorder refer to PLAY BACK section Set to record mode on the video cassette recorder irefer to PLAYBACK section Dubbing is now in process Adjusting Playback output contr
12. f ele A UP DM att a B Ma ARR mei c Ica p a 1 a f psu 9 E Line input Line output Microphone Cannon connec Mor cable n M E ace output Line input 1067 _ iron input Coaxial cables providec E m pnm ma 7 i i EE PERENNEM p cM mem BHO i gn a d output A3 EJ VTR VC 6300 POwer source Sco T b id 4 EUCISS8JO1 1 nbe jueudi F 5 ZO ca mad ai TS t e EV T ji 1 i M v P m Lal j a 3 9 A TI be Eea a he 2 5 f lin jj x ha a a ki C bed SINUS gt Sr En 1 1 Mi 5 M au i 941 M EI iUi a fili ja H o 11 yit
13. ge or variation being of a kind as not to reduce the quality performance or appearance dum
14. king control manually to obtain the optimum piayback condition For manual settings follow the instructions below Listen carefuliv to the signal sound Count a number of signals audible within a period of five seconds Turning of a tracking control knob will either increase or decrease signal interval Set the knob where the least amount of signal is audible within a period of five seconds Repeat this several times to obtain maximum tracking control When the tracking control knob is turned tracking is momentarily disturbed When making an adjustment watt until the tracking is stabilized and no continuous signal sound is heard The signal sound is only reproduced by the headphone terminal 2 and it won t be reproduced through the speakers Every time a video cassette recorder video cassette tape is changed be sure to make tracking control and optimum control adjustments When recording push back the switch to the source position OPTIMUM CONTROL This control maintains th optimum performance from the digital adaptor even wnan the video cassette recorder deviates from normal performance figures i 1 First set this knob to the notched middle position 2 Optimum indicators will light up when a PCM Tape is played back Lass than indicators will light up if the playback condition is favourable Wren the itis condition is poor several indicators will tight up to show that the optimum conirs requires readjustment Adju
15. microphones Optimum control Maintains the digital adaptor at optimum playback condition shen used ith any video cassette recorder 1 compensates a minor performance Geviation in s deo cassette recorders Line input terminal phono jack Connects Record out or Line out terminals of an amplifier Never use this terminal and Line input terminal 21 cannon type connector simultaneously Line output terminal phono jack Connects Tap playback or Line in terminals of an amplifier Line input terminal cannon XLR 3 31 type unbalanced connector Use this terminal for connecting a microphone mixer or other professional audio equipment Never use this input terminal and Line input terminal 19 phono jack simultaneousivi The number three pin isa hot wire Line output terminal cannon XLR 3 32 type unbalanced connector Use this terminal for connecting Line output of professional type amplifiers Digital input output terminal Use this terminal for connecting another RX IHdigital adaptor input output terminal when digital dubbing is performed by using two RX FUigita l adaptors and two video cassette recorders Video input terminal Use this terminal for connecting the video output terminal of a video cassette recorder Never use this video input terminal and PL 259 type video input terminal 26 at the same time Video output terminal Use this terminal for connecting the video input terminal of a video cassette recorder Never
16. ol 15 Line input control 16 or MIC oput contro 17 does not affact receording level Analog Dubbing 1 2 3 4 5 6 Push on the power switch 1 Switch the mode selector 12 to play position on the playback digital audio adaptor Switch the mode selector 12 to record position on the recording digital audio adaptor Playback the source playback video cassette recorder refer to PLAYBACK section Set the record mode on the recording video cassette recorder refer to PLAYBACK section D Now dubbing is in process Digital Dubbing E 2 Refer to diagram 6 for connections Operation procedure is identical to the analog dubbing There may be certain cases when using the TV signal will not produce good dubbing results This is because there are minor performance deviations among video cassett recorders and video cassette tapes f this is the case perform analcg or digital dubbing as explained earlier 8 4 tan 13 Bd L3 VIR VC 6300 MA D EVA ba S s ke PE e DS cA L A 4 4 et ATF ej V Sty u j 3 p man man ed PN Video Video S CA N M 3 SU X WV P d 3 x E on 7 tj gm
17. playback condition when using a PCM Tape When several indicators are on turn the optimum control knob clockwise or counter clockwise to obtain the best condition LED level indicators Recording or playback levels on each channel are monitored Level setting differs from the conventional method It is recommended that the average input ievel be set around 9dB never let the over indicator light up MIC input jack Accepts low impedance microphones in right and left channels Mode Record Play switch Select either Record or Play mode with this switch Error monitor switch Two way monitor switch Push it to source position for monitoring both recording and playback formance by headphones Check position is for monitoring and checking tracking optimum control level or dropouts when using a video cassette recorder Headphone volume control Controls output level for headphones Variable volume controi does not affect recording level Line output level control Controls playback output of the taped source Set the control knob to maximum when using an amplifier Level indicators show the fixed output reqardiess of output level control operation Xi Ta 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Line input level control Controls input level from a home stereo system or a tape deck MIC input level control li Controis input level from
18. rofessional type connectors Broadcast standard connectors such as cannon connectors and PL 259 type video conneci s are used in addition to popular phono connectors CAUTION A Hint on Setting up the Equipment 1 Position all equipment for easy operation 2 Do not operate the unit in humid dusty areas or expose the unit to extreme heat A temperature of 30 C or beiow is recommended 3 Use an appropriate voltage regulator in areas where voltage fluctuation is above average Power Source The recommended power source for the unit is AC220V Do not operate the unit except with AC220V Otherwise electrical failures and other hazards will result including fira and electric shocks Service There are no user serviceable parts inside In case of failure take the unit to the nearest authorized dealer for repair Maintenance Clean the unit with soft cloth and mild detergent Never apply alcohol paint thinner or other harmful chemicals These distillates will smear the casing or remove the paint Dew Problem on a video cassette recorder 1 Oo not operate a video cassette recorder in areas where moisture condensation might occur Moisture condensation may occur inside the unit after heating a cold rcom 2 Please refer 10 an owner s manual of the video cassette recorder for further infor mation on dew problems ENTONCES ATE Saye A f E al c MEO Kate
19. rted into pulse codes for recording and playback the sound signals are not affected by rotary mechanisms characteristic to analog systems The result is an extremely high fidelity in recording and playback beyond any possibilities of the analog system Accurate Easy to Read LED Level Meter 28 LED level meter on one channel permits precise recording levels Easy to Connect to Various Kinds of Equipment In addition to PIN jacks the unit includes cannon connectors and M type connecting jacks for easy connection of the RX 1 with various kinds of equipment Special Control for Precise Adaptability of PCM Adaptor to Videotape Jack for Digital Direct Dubbing Other features x Mike mixing Gold plated PIN jacks Headphone jack Blocks of the PCM unit Clock TV generator f generator nm Ins Reproduction Data formats 3 5 7 all DATA DATA Recording 01001101 109198 Digital Video Recorded Sample signal f t Signals and hold Reproduction ape 9 6 0 6 0 E DATA DATA 5 lt a 87 ji 0 BA bb H ku Data Correction X ON Audio signals Memories Recorded Reproduced Error tape Wave Playback waveform of 10 kHz C tape deck Open reel tape deck PCM system wok Playback waveform of silent portion 50 dB or 300 times magnification on the scope Cassette tape deck Open ree tape deck PCM system
20. st the knob so that the fewest lamps wit be Readjust the knob each time a video cassette recorder cassetta tape is changed Since the performance characteristics of each video cassette recorder may vary there may be cases when two to three indicators light up even if the playback conditons very good At optimum indicators may light up right after a video cassette recorder s hooked to the digital adaptor This does not indicate the machine in malfunct ong Just playback the PCM Tape and wait until the PCM Tape indicator is on gt 3 making any adjustment RECORDING Refer to the owner s manual for the operation of a video cassette recorder 1 Make connections as illustrated see diagram il 2 2 Push on the power switch 1 3 4 Adjust to proper recording level by turning the Line input control 16 knob or MIC Switch mode selector 12 to record position input control 17 Knob Set the level indicator 10 for visual checking of input lavet Load the video tape Clear the tape counter to zero on the video cassette recorder Press the record button Since it takes several seconds for the video cassette recorder to be stabilized war several seconds before starting to record When the microphone is not used turn the MIC input control knob to 0 position Always use reliable video cassette recorders in an excellent working conditions io obtain maximum recording performance from the digital ad
21. t Connect a headphone to the headphone ack 2 Playback the video cassette recorder and set the error monitor switch two way monitor switch to check position Adjust optimum control by monitoring optimum indicators Obtain maximum tracking control by listening to the checking signals Now the tape an be played back anytime During optimum control or tracking control turn down the amplifier volume and set the monitor switch to the monitor position Once the initial optimum control and tracking control is adjusted there is no further adjustment ecer as long as the video cassette recorder is used Always use a reliable video cassette recorder in excellent working condition in order to obtain maximum performance from the digital adaptor Always keep the video neads clean When using a prerecorded PCM tape make sure it complies with the PCM recording standard Error Monitor Switch Two way Monitor Switch Source Position aecording and playback conditions are monitored by headphones when the switch is in source position When the switch is in check position the headphones pick up the intermittent signal sound to indicate whether the optimum control or tracking control is properly set The better the condition the less audible the signal becomes Usually set the tracking control to auto position When the signal sound becomes quick and clearly audible the playback condition is poor Proceed to set the trac
22. use this terminal and the PL 259 type video output terminal 27 simul taneously Video input terminal PL 259 type connector Use this terminal for connecting the PL 259 type video output terminal of a video cassette recorder Never use this terminal and an additional video input terminal 24 simultaneously Video output terminal PL 259 type coanector Use this terminal for connecting the PL 259 type video input terminal of a video cassette recorder Never use this terminal and an additional video output terminal 25 simultaneously Dubbing output terminal Use this terminal when dubbing is performed by using this digital adaptor ard video cassette recorders Connect it to the video input terminal of the recording video cassette recorder External svnc output terminal phono jack Connect to the external sync input terminal of a video cassette recorder External sync output terminal PL 259 type Connect to the PL 259 type external sync input terminal of a video cassette recorder 5 PLAVBACK Refer to the owner s manual for the operation of a video cassette recorder 1 Make connections as illustrated see diagram 2 331 2 Push on the power switch 1 3 Switch the mode selector to piay position 4 Load a PCM tape into a video cassette recorder 5 Set the video cassette recorder s tracking control knob to auto position or to ihe 0 c o center position if manually se
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