-p.21 STEREO TAPE REGORDER OPERATOR'S MANUAL THIS MANUAL IS ALSO APPLICABLE TO MODEL GX.221D STEREO TAPE DECK. ,,,ÀKAr,, MANUFACTURED & DISTRIBUTED BY AKAI ELECTRIC CO., LTD./AKAI TRADING CO., LTD./AKAI AMERICA LTD.
.l GLASS & CRYSTAL FERRITE HEAD Akai has equipped this model with its new and amazing Glass & Crystai Ferrite Recording and Playback Heads to bring you unequalled open reel high fidelity sound. With the Glass & Crystal Ferrite Head, superbly wider frequencies, with clear highs can be recorded in ail their true fideiity covering 25,000 Hz with low noise tape. In other wotds, with this completely new Glass & Crystal Ferrite Head, high dynamic range and excellent signal-to-noise ratio are achieved.
INDEX CEE, CSA and UL Standard models are not equipped with Voltage Selector a,nd Cycle Conversion Switches. Therefore, voltage and cycle conversion is not necessary. If your machine corresponds to any of these standards, please disregard all references to voltage and cycle adjustment throughout this manual. CEE Models : 220 Y ,50 Hz. ;r ill3:[ ',l13J;'23i; Controls vottage&cycleco.u.rrion :...:. :.. : :. :.........
CONTROLS tr
I. INDEXCOUNTER&RESETBUTTON For use in locating positions on the 2. PINCH WHEEL PÍesses against capstan tape. to transport tape. 25. RECORD/PLAYBACKLEVER For effecting playback or recording mode. For playback, set to PLAY position. For recording, rvhile depressing Recofding Safety Button, set to REC position. 26. FAST FORWARD/REWIND LEVER For effecting fast forward or rewind mode (transports tape at 3. CAPSTAN Transports tape. high sPeed). 4. SUPPLYREELTABLE 5. BUILT-IN SPEAKER 6.
VOLTAGE AND CYCLE CONVERSION VOLTAGE Your machine is equipped with a universal voltage selector offering six selections of voltage from 100 V to 240 V AC for worldwide operation. Voltage is preset at the factory accordiag to destination. Please confirm setting prior to operation and if read.justment is necessary, proceed as follows : (A) Disconnect power cord and remove the Fuse Post by screwlng in direction of arrow.
OPERATING PRECAUTIONS The conditions listed below do not indicate mechanical failure of your unit. If your machine exhibits any of the following, please check for trouble as indicated. Loss of sensitivity oÍ tone quality may be due to : * Wrong side of tape facing heads. * AC power voltage lower than the voltage to which your machine is adjusted. * Magnetized heads. See Head Demagnetizing procedure. Irregularity of tape transpoÍt may be due to : * Dust or magnetic particles adhering to Capstan, etc.
PINCH WHEEL & CAPSTAN CLEANING If foreign matter is allowed to accumulate on the Pinch Wheel and Capstan, these particles will come off on the tape causing deterioration of sound quality. Oil adhering to the Capstan also causes irregularity in tape transport. It is, therefore, recommended that these parts be wiped clean occasionaily. For Pinch Wheel .and Capstan cleaning, use Akai cleaning fluid (from Head Cleaning Kit HC-500) or alcohol.
CONNECTIONS FOR PLAYBACK TAPE LOADING Place a full reel of tape on the Supply Reel Table and an empty reel on the Take-Up Reel Table. Thread the tape as shown in the figure on page 8. Lock reels firmly into place with the built-in reei retainers provided on reel shafts. 4-TRACK RECORDING/PLAYBACK SYSTEM This model employs a 4-fuack system which can be used for either stereo or monaural. Select desired track(s) with the Track Selector Switch.
PLAYBACK OF PRE-RECORDED TAPE For playback with Model GX-221D Stereo Tape Deck, please refer to page 13. the operating precautions carefully before attempting operation. Connect power cord and load a pre-recorded tape. tape inputs of an external stereo amplifier and connect two speakers to the amplifier. Please read Select tape speed and set Equalizer Switch Only the left channel is used for monaural playback on tracks 1 and 4.
AUTOMATIC & MANUAL REVERSE PLAYBACK One of the main features of this model is the automatic reverse playback mechanism which eliminates troublesome inverting of reels by hand. Simple application of a piece of sensing foil to the tape at desired reversing points is all that is necessary for continuous playback in both directions. (A) Affix about a 2 cm (314") long piece of sensing foil to the outside of the tape at desired reversing point.
CONNECTIONS FOR RECORDING @
RECORDING USING MICROPHONES .§.'* 'ta.:l I .t i't.1 j §; * 2 meters (7 ->i I I MONAURAL RECORDING attempting operation. Connect power cord and load For monautal recording, substitute the following steps for steps (B), (E), and (G) of stereo recording procedure and a add step (J). STEREO RECORDING A. Turn on Power Switch. B. Depress STEREO Track Selector Switch. Recording on Tracks I and 4 * Only the left channel is used for recording on tracks C.
r RECORDING FROM AN EXTERNAL AMPLIFIER If an external amplifier or tuner amplifier is used, connect the tape outputs of the external amplifier to the Input Jacks of Model GX-221 in step (E) of recording procedure. The GX-221 will record any source which can be selected on the external amplifier. RECORDING FROM A TURNTABLE To record from a stereo or monaural disc, a crystal pick-up (0.5 to 1 V) or a cermic pick-up can be connected directly to the Input Jacks in step (E) of recording procedure.
PLAYBACK WITH MODEL G){.2ZID TAPE DECK * * the operating precautions carefully before attempting operation. For playback of pre-recorded tapes connect the Line Outputs of. the GX-221D to the tape inputs of your stereo amplifier and connect a pair of speakers to the amplifier. Connect power cord and load a pre-recorded tracks I and 4. Connect the left Line Output to the left tape input of external amplifier. Substitute the following step for step (B) of stereo playback procedure and add step (G). tape.
TECHNICAL DATA Reel Capacity Tape Speed Wow & Flutter Equalization .. Frequency Response . Output Power . Up to 7" reel 1-t12,3-314 and Less than 0.08% Less than 0.12% Less than 0.20% two 6-pole eddy-current outer rotoÍ motors for supply and take-up reel 1-7l8 ips(!0.1%') RMS at 7-1 l2 rps RMS at 3-3/4 ips RMS at i-7lB ips Ratio . drive Fast Forward & RewindTime . .. . . Correct equalization for playback. of tapes recorded to NAB curve.
STANDARD ACCESSORIES (ModelGX-221) Microphone w/Stand ........ 2 DemonstrationTape ........ EmptyReel .. .....,.1 SensingTape. ....... I Spare Fuse 1 set Operator'sManual ....1 (ModelGX-221D)EmptyReel .........1 ConnectionCord. .... i SensingTape. ....... Spare Fuse 1 set Operator'sManual ....1 1 1 *Spare Fuses are not included with CEE, CSA, and UL standard models.
