Gates-Cartritape_ll-tape-sm 电路图 维修手册.pdf

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1、Frn 7_is- INSTRUCTIONS FOR INSTALLING AND OPERATING THE GATES CARTRITAPE II SYSTEM Consisting of: M621IG- PLAYBACK UNIT, MONAURAL M6212C- PLAYBACK UNIT, STEREO ( 6213I- RECORD /PLAYBACK UNIT, MONAURAL M6214F-RECORD/PLAYBACK UNIT, STEREO M6219- AUTOMATIC AUDIO SWITCHER M6221- REMOTE UNIT (PLAYBACK) M

2、6234- REMOTE UNIT (RECORD) HARRIS INTERTYPE CORPORATION GATES RADIO COMPANY A Subsidiary of Morris- fnfertype Corporotion QUINCY, ILLINOIS Offices: NEW YORK, HOUSTON, LUS ANGELES, WASHINGTON, D.C. Expol1: ROCKE INTERNATIONAL CORP., NEW YORK CITY. In Canada: CANADIAN MARCONI COMPANY, MONTREAL IB-888-

3、0863-001 RadioFans.CN 收音机爱 好者资料库 2 TECHNICAL DATA System Frequency Response: 42 db from 50 cps to l 2Kc - 4 db from 50 cps to 1 5 Kc Equalization: Standard NAB Curve Harmonic Distortion: Less than 1% at normal record level (limited by tape) Noise: -50 db Wow and Flutter: 0.2% maximum Output Level: -

4、15 dbm, adjustable Output Impedance: 600 ohms and 150 ohms, balanced (factory wired for 600 ohms) Speed: 7 -1/2 ips .04% Cartridge Handling Capacity: All 3 standard size cartridges. Record Amplifier Input: Minimum: -20 dbm 150/600 ohms matching for 100% on VU meter. Maximum: +4 to +18 dbm, 10K ohm b

5、ridging Impedances: 600 ohms or 150 ohms (factory wired for 600 ohms) Cue Signals: Tone one: 1Kc automatically recorded at the start of the recording to cue up tape for playback. Tone two: 150 cycles automatically.recordedat the end of the recording, to be used for automatic start- ing of auxiliary

6、equipment. Tone three: 8KC may be recorded when desired at any time during the recording. This tone can be used for actuating auxiliary equipment such as slides and film projectors. Ambient Temperature: +55 C Maximum Maximum Power Required: M6211F - 35 watts M6213I - 40 watts Dimensions and Weight:

7、Playback M6211F Height: 5 -1/4 Depth: 16 -1/2 Width: 12 Weight: 21 lbs. Record Playback Unit M6213I Height: S -1 /4 Depth: 16 -1/2 Width: 17 Weight: 33 lbs . Switcher M6219 - Height: I -3/4 Depth: 8 -5/8 Width: 15 Weight: 8 lbs. Remote Unit M6221, M6234 - Height: 2 -3/4 Depth: 5 -7/8 Width: 5 -3/4 W

8、eight: 2 lbs. Switcher M6219 - Input Capacity: 4 channels Crosstalk between channels: -65 db orbetter. Remote Unit M6221 Playback - Facilities for remote starting of 4 playback units with lamp status indication. Remote Record Unit M6234 - Duplicates all the switching on the M6213C Record Playback Un

9、it including status lights. DESCRIPTION The Gates Cartritape II System consists basically of the M62131 Record Playback Unit.This unit records and re- produces tape cartridges that are loaded with a continu- ous loop of recording tape. This tape varies in length to produce different playing times. T

10、he Playback Unit is completely transistorized and uti- lizes printed glass epoxy chassis that are plug -ln modules. The record amplifier attaches to the side of the playback unit to become a record playback unit. The automatic switch, orM6219, is available to provide automatic switching of up to fou

11、r playback unit outputs into on console input. A maximum of four playback or record /playback units may be serviced by one switcher. Switchers may be connected in tandem to accommodate more than four play- back units. The M6221 playback remote control unit Is available for remotely starting four pla

12、yback units. The M6234 record remoteunit will provide remote start- ing functions for a complete record playback unit. The playback units are designed to be installed in either 19 rack mounting or convenient desk mounting, The following chart lists the equipment for a basic sys- tem and all the acce

13、ssories that are required fordifferent combinations of units. Qty. Unit M Number Basic System 1 Record /Playback Unit M62131 Multiple System 1 Record/Playback Unit M62131 2 -3 Playback Units M6211F 1 Switcher M6219 RadioFans.CN 收音机爱 好者资料库 Accessories: Remote Unit playback (lour start pushbuttons w /

14、run illumination lights) M672.1 Remote Unit ,record Playback Unit (provides complrae remote control swrtchi :ig for 1 record /playback unit, M6213 M6234 Cue Amplifiers: 1 Kc (Stop) M6216C 150 cps (end of message) M6216A 8 Kc (Random) M6216B Program Amplifier M6215 Cartridge Storage Rack (40 cap.) M5

15、986 Tape Eraser 730- 0102 -000 Cartridges: Time EMPTY 40 Sec. 70 Sec. 100 Sec. 3 -1/2 Min. 5 -1/2 Min. 10 -1/2 Min. Empty 16 Min. Empty 31 Min. INSTALLATION Model F-300 F-300A F-300B F 300C F-300D F-300E F-300G F-600 F-600fi r-1200 F-12001 Gates Number 732 -0044 -000 732- 0095 -000 732 -0046 -000 73

16、2 -0097 -000 732 -01348 -000 732 -0049 -000 732- 0050 -000 732 -0051 -000 7:32- 0052 -000 732 -0043 -000 732 -0051 -000 Unpacking - The equipment will be received in safe transient ship- ping cartons . Unpack the contents carefully and examine thoroughly for shipping damage. If any such damage is fo

17、und, file a claim report immediately with the carrier. The Record /Playback and Playback Units are shipped ready for desk top operation or 19 rack mounting. In either case 5 -1/4 of panel space is required. 1. For desk top mounting install the four rubber feet to the bottom panel of the Playback Uni

18、t in the holes provided. Use 6 -32 x 1/2 hardware shipped with the unit. 2. For 19 rack mounting attach the angles and exten- sion panel to the sides of the unit. With the 10 -32 hardware provided, using ashakeproof washer under each screw head. Installation of Plug -in Amplifiers and Relays - The u

19、nits are shippedwith one Program Amplifier and the 1Kc Cue Amplifier installed. The additional Amplifiers and Record Ampliflerrelays are shipped separate for the two and three tone units. In the Playback Unit - to add the second tone, plug the M6216A (150 cps) board into the track marked 150 cps. To

20、 add the third tone, plug the M6216B (8Kc) board into the track marked 8 Kc. 3 In the Record Amplifier - to add the second tone, plug a 574- 0106 -000 relay into the socket marked 150 cps. (Remove jumper). Wiring Instructions - Observe drawing 842 3721 001 for themulti-system wir- ing diagram. This

21、drawing shows one Record Playback Unit, together with three Playback Units, one Switcher, one Playback Remote and one Record Remrite wired into a system. Notice that the units are designated as A, B and C. Audio Output Connections - As shown on drawing 842 3614 001, the audio output appears between

22、pins 1 and 2 bn P110 of each playback unit. The level obtained from this point has been set at the factory for a -15 dbm from a normally recorded tape. If a lower output level is desired, adjust R15 on the printed playback chassis. Audio Output Impedance - The Playback Amplifier is wired at the fact

23、ory for 600 ohms output. Observe drawing 838 0.218 001 for strap- ping information for 150 ohm output. Rvrilo Input (Record Amplifier) - The Record Amplifier input provides a balanced 500/600 ohm input for -20 dbm or will bridge a balanced line up to +8 dbm. Observe drawing 842 3746 001 for this wir

24、- ing information. Switcher and Remote Unit Wiring Information - This information can be found on drawing 842 3721001, which is the Cartritape II System Wiring diagram. Installation of more than One Automatic Audio Switcher - Observe drawing 838 0435 001 for the installation In- structions for conne

25、cting multiple switchers in tandem. Second and Third Tone Relay Contacts - The output jack for control circuits on each playback unit is J109. The contacts on the control relays actuated by the second and third tones are brought out on this Jack. The 150 cycles end of message relay contacts can be f

26、ound on terminals 4, 5 and 6. Terminal 4 is the normally open contact, terminal 5 is thecommon contact and terminal 6 is the normally closed contact. The ran- dom cue relay terminals (8 Kc) are connected to pins 7, 8 and 9. Complete information is contained on schematic drawing 842 3614 001. The 150

27、 cycle and 8Kc relays do not perform any function in the basic playback system. They are available in Cartritape II for automated oper- ations allowing additional playback units to be started in sequence or to provide immediate switching for ex- ternal equipment. Since Cartritape II provides this co

28、mplete flexibility of operation, only the basic control wiring is shown on drawing 842 3721 001. This control flexibility-allows the station engineer to use the facili- ties of Cartritape II to best advantage as required for his particular stations installation. RadioFans.CN 收音机爱 好者资料库 4 OPERATION T

29、ape Eraser - Cartridge tape recorders do not utilize erase heads. Therefore, a bulk eraser is required to degauss tape cartridges prior to recording. A bulk tape eraser, such as Gates No. 730 0102 000, is recommended to properly erase the tape. Place the tape eraser on top of a cart- ridge and make

30、circular motions. This should be done to the bottom and front edge of the cartridge as well. Continue this operation for approximately 15 seconds. Then slowly remove the eraser from the cartridge to a distance of. about three feet with a slow, steady with- drawal. Only then should the power be remov

31、ed from the tape eraser. PLAYBACK UNIT- M6211G Function Ready Light Part of Sf02 White, glows when cartridge is inserted properly. Start O S103 After a cartridge is inserted into the machine, pressing this switch begins tape motion. Run Light Part of S103 Amber, glows while lape is run - ning. Stop

32、Switch S S102 White, depress to stop tape mot- ion. (Normal operation would be to allow tape to recue) RECORD AMPLIFIER (Part of M62J31 ) Function Record Set R S209 Amber, depressing this push - button readies the record/play- back combination for recording. Record Mode Part of S204 Amber light, whe

33、n illuminated indicates unit is not ready to record. Record Stpp S S203 White, to stop recording process and automatically record second 200 cps lone. Record Indication Part of S203 White, indicates unit is in the record mode when lit. Random Tb:,e S205 Red pushbutton. Actuates ap- placation of thir

34、d toneduring the record process. *random Tone Record Indication Part of S205 Red illumination, momentary. Indicates random cue tone has been applied to tape. To Record - Adjust the variable width cartridge slot opening by grasp- Ing the large knob adjacent to the cartridge slot with the thumb and se

35、cond finger while pulling the top lever forward with the index finger to release the lock. Set the slot width to the desired size. Insert an erased cartridge into the slot and press forward until the car- tridge rests against the stop and the ready light comes on. Feed audio to the Record Amplifier

36、and adjust the level control so peaks read 100% on the VU meter. Press the record set (Amber R ) on the Record Amplifier. This readies the system for the recording process . Cue the audio and start the recording by pressing operate (Amber O) on the Playback Unit. The 1Kc stop tone is automatically r

37、ecorded at the be- ginning of the recording. If the random (BKc) cue tone is to be used, _t may be applied at any time during the recording. To do so, press the red ( T ) switch momen- tarily every time a pulse is desired. When the time has arrived to conclude the recording, press the white ( S ) on

38、 the recording amplifier. This will stop therecording process and in two tone system automatically insert the second or 1.50 cps end of mes- sage cue tone. The tape will continue to run and cue itself up for playback. NOTL: DURING TIIERECORDING PROCESS TIMESWITCH- ER (M6219) IS DISCONNECTED BY K20)

39、CONTACTS 3 -11 Multiple Segments on One Cartridge - To record more thanone segment end -to -end on a single cartridge, press thewhlte stop button ( S ) on the play- back approximately five seconds after the audio ceases on the first segment. Then repeat prescribed record process. A five second spac!

40、nn between recorded seg- ments should be allowed to make sure all cue tones on the end of the previous recording have safely passed the playback head to prevent erratic operation. CAUTION! PLEASE READ - It is necessary to press re- cord stop at the end of the audio to remove the blas from the record

41、 head. Otherwise the cartridge may not recue due to cue tone erasure by the bias applied to the record head. To Playback - Insert a previously recorded cartridge into a playback until it comes to rest against its stop and the ready light comes on. Press the operate ( O ) switch and the re- corded se

42、gment will play back. Allow the cartridge to run and revue itself. Trouble Shooting - I - Check system wiring diagram 842 3721 001. A. Have all the interconnecting wires been installed? B. Have the indicated Jumpers been removed? C. Have incorrect Jumpers been removed? D. Is power applied to all uni

43、ts? E. Are all the fuses intact? F. Are the recorder input levels too high? Check sound quality at record monitor jack. G. High hum in Record Amplifier? Turn A.C. power cord over. ll - Problems related to cartridges. A. Poor sound quality. Poor head contact. Cartridge pressure pads misaligned. B. Cr

44、osstalk or level variation. Corner post in cart- ridge has popped up, misaligning tape past record head. MAINTENANCE GUIDE NTRODUCTION This guide has been prepared so that a maintenance sched- ule can be instituted to suit the demands of the station. The only maintenance system that provides the nec

45、essary reliability is PREVENTATIVE MAINTENANCE. Much has been written on this subject but a brief explanation is in order. PREVENTATIVE MAINTENANCE Preventative maintenance is different from repairing or general maintenance In that the m.inten. nce work is ap- plied before there is a failure. By ado

46、pting a schedule of routine preventative Talntenancevery few on -air failures will occur, Jl;RCATIO N 1. The bearings used in the motor, flywheel, andpressure roller are permanently lubricated and should require no lubrication. They may be lubricated, however, approxi- mately every six months. When

47、lubrication 1,s used - ex- treme care should be exercised to keep it from contacting the rubber pinch miter. 2. A fine oil may be used to lubricate the motor and cap- stan bearings. Molykote Type G, should be used to lu- bricate the following. Refer to Fig. 1. 1. Pressure roller shaft. 2. Solenoid p

48、lunger. 3. Toggle Pawl. 4. Lifter cam surface. The pivot nolats should be lubricated with machine oil. REMOVAL OF THE TAPE DECK ASSEMBLY If it should become necessary to remove the tape deck assembly proceed as follows: 1. loosen the four screws on TB101 and take off the wires. Do not take the screw

49、s all the way out. When putting these wires beckon the terminal use careto match up the wire numbers. 2. Remove tae four nuts and washers which secure the front casting -o the unit. Then rorate the front casting un- til it clears the index adjust _ever and lay it beside the unit. 3. Re-rovet:refive machine screws. and cable clamp which holds the tape deck to the main chassis. 4. Remove the three socket head cap sc