Knight-96RZ940-tape-sm 维修电路原理图.pdf
《Knight-96RZ940-tape-sm 维修电路原理图.pdf》由会员分享,可在线阅读,更多相关《Knight-96RZ940-tape-sm 维修电路原理图.pdf(12页珍藏版)》请在收音机爱好者资料库上搜索。
1、PnoToFACT* FolJ*tSIZE5 reel (600 ft.)7 reel (1200 ft.)KNIGHTMODEr 96Rz94oorfosN+40t2tYsoo=GENERAL I NFORMAT IONThe Knight Model 96R2940 uses pushbutton control, Two tracks of material can be record-ed and played back on standard width recording tape This doubles the playing time of a standard5or 7re
2、el of tape with no loss of qualityor frequencyresponse. ReCordingscan bemadefroma radio, television receiver or phonograph. Recordings can be played bacli through either theself-contained speaker or through an external speaker by using the Externat Speaker Jack,using both channels of the tape, the r
3、ecording time is as follows:3oEmXe2TE-+p5o3 3/ 4 SPEEDI hour2 hours71l2ll SPEEDL/ 2 hourI hour.The Knight is designed to operate on 60 cycle, 115V. AC supply only. Before connectingto a line supply, be absolutely certain that it agrees with the above specifications.Supplied by:Atlied Radio Corporati
4、on833 W. Jackson BIvd.Chicago 7, IllinoissIhis msterial compiled and published byw. sAms & co., lNC.,INDIANAPOlIS,INDIANAydght 1957 . All Righb RsarvedllITE g-57stT 360HOWAR,Dt0tDtn 5RadioFans.CN 收音机爱 好者资料库FIGURE 1OPERATI NG INSTRUCTIONSPreparation For Operationl. Remove the AC power cord, 5 reel of
5、 tape,empty reel and the microphone from the storage com-partment.2. Depress the stop button until it locks.3. Plug the AC cord into a convenient wall re-ceptacle of the proper rating.4. Set speedchange knob to Slowor nFastasdesired.CAUTION: Do not turn speed change knob unlessS-iopl-ffiton is depre
6、s sed.When the Forward or Reverse buttons are de-pressed, thePlay andRecord buttons arelocked intheup position, This prevents the possibility of spillingthe tape. AII buttons should be depressed firmly untilthey latch. The Stop button must be depressed be-fore changing functions or speeds of the rec
7、orderIMPORTANT: Always depress the Stop,buttonwhenreconder Is not in use.Speed Change KnobThe arrow on the speed change knob (I) shouldpoint at Fast or Slow according to the speed de-PAGE 2sired. This recorder has two speeds Fastr - 7 I12,per second and Slow -3 314 per second tape speed.CAUTION: Tur
8、ning the speed change knob while theunilratingwill not change the speed. The Stopbutton must be depressed before the speed can bechangeFThreading The Tape1. Place a full reel of tape on the left (feed) reelplate (8), making sure the slots in the reel areseatedonthe pan protrusions. Unwind about 14of
9、 tapefromthe reel.2. Hold a section of the unwound tape straightwith both handsand insert the tape inthe tape slotbe-tween the escutcheons making certain thg dull (coated)side of tape is facing the back of the relorder.3. Insert thefree end of thetape into oneof thethree slots in the hub of the empt
10、y (take-up) reel Placethe take-up reel on the take up spindle (?)and windupthe tape until it is secured on the reel.To Record From Microphonel. Turn the On-Off -Volume control (9) to therightuntil a click is heard, then allowabout 30 secondsfor theunit towarm up. The Redilitetwill glowwhenthe unit i
11、s turned onRadioFans.CN 收音机爱 好者资料库3oElllx-2=O. !n+N-I5oF I GURE2. Insert the microphone plug into the,Micro-phone jack.3. Move the record lock button downward withthe left hand. This releases the safety lock whichprevents accidental erasures.4 While holdingthe recordlock button, depressthe Record bu
12、tton with the right hand until it latches.5. Adjust the IVolume Control until the Re-cord level indicator just flashes while speaking intothe microphone. When the volume control is advancedtoo far, distortion will result.Note: The Tonecontrol does notoperateduringre-cording. When recording from a ra
13、dio, set the radioTone control to maximum treble.To Record From Radio. TV. or Phono1. Insert the phonograph pickup plug into theRadio-P. A. -Phono Jack.2, For radio or TV recording, connect patchcord, (part C-20.233) to the voice coilof the radio orTV receiver speaker by means of the atligator clips
14、.Plug into the Radio-P.A.-Phono Jack.3. Proceed as described under tTo RecordFrom Microphone.NOTE: Remove patch cord after recording is com-pleted.2To Use Second Track1. When alL the tape has wound on the take-upreel, depress the Stop button.2. Remove reel containing tape and place it onfeed spindle
15、.3. Place empty reel on take-up spindle.4. Thread tape as described under ,ThreadingThe Tape.To Play Recordingsl. Turn unit on withVolumecontrot knob (9).2. Thread tape as described under IhreadingThe Tape.3. Set the speed change knob (l) to the speed atwhich the recording was made.4. Depress Play b
16、utton until it latches.5. Adjust Volume and Tonecontrols to de-sired listening level.High Speed Forward or Reverse$hould it bedesired to play a portionof the tapeit is not necessary to rewind the entire tape. By de-pressing the Forward or Reverse button the tapewill advance or rewind at a rapid spee
17、d to the desiredsection.PAGE 3To Edit and Splice TapeNOTE: It isimpossible to editand spliceone trackoftape without affecting the second track, therefore re-cordings to be edited should be iimited to one trackonly.1. Tape recordings may be edited by cutting outunwanted sections, or by joining select
18、ions into anothersequence. Announcements can be inserted betweenselections etc. Unused sections of tape can be splicedtogether for reuse.2. For best results cut tape on a slight diagonal,join ends together with splicing tape on the glossy sideand trim off any excessive width.Erasing Recorded Materia
19、lWhen the Record button is depressed, theerase head is positioped automatically erasing any pre-vious recording before a new one is made. Materialno longer needed may be erased without recording bydepressing the Record button and turning the Yol-ume control to the minimum, (or extreme counter-clockw
20、ise position). Only one track is erased at atime. To erase the second track reverse the reelsand repeat the above operation.To Use Recorder As a Public Address SystemInsert the microphone plug into the Microphonejack. Plug in an extension speaker and depress theRecord button. Set the Tone and Volume
21、 con-trols to the desired level. A recording can be madeat the same time by placing a tape on the unit in thenormal manner.NOTE: When using the public address feature keepthemicrophone as laraway from thespeakers aspos-sible to prevent Teedback squeal.ADJUSTMTNTSRecord-Play Head AdjustmentWFor maxim
22、um frequency response, adjust therecord-play head (56) as follows;l. Remove the rear escutcheon (4).2. Thread an alignment tape or good recordedtape in the usual manner.3. Set the controls as described under ITo PlayRecordings.4. With the unit playing turn head adjustmentscrew (56A) clockwise or cou
23、nter-clockwise untilmaximum high frequencies are obtained.Pressure Pad AdJustment1. Remove the front escutcheon (13).2, Depress the Play button, Do not turn therecorder on.3, Using a pencil type postal scale, check theamount of pressure necessary to just pull the padPAGE 4away from the tape. The tes
24、t should be made on theend of the pressure pad mounting spring (59). Adjustthe pressure pad for I 3/4 oz. + I/4 oz. pressure asfollows:(a) Therecord headpressurepad isadjustedby the locked adjustment screw (42).(b) Tne guide postpressure pad(al)bybend-ing the pressure pad spring. It must be adjusted
25、 forminimum pressure against the tape.4, After the adjustments are completed de-press the Stopbutton and replace the frontescutch-eon.Erase Head Adjustmentl. With tape properly threaded, turn recorderon and depress the Recordbutton. Allow tapetoruna few seconds then turn recorder off, but leave theR
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Knight-96RZ940-tape-sm 维修电路原理图 Knight 96 RZ940 tape sm 维修 电路 原理图