Marantz-5220-tape-om维修电路原理图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 Model 5220 Stereo R Cassette Deck MARANTZ CO., INC . 20525 NORDHOFF STREET, CHATSWORTH, CALIFORNIA 91311 A WHOLLY-OWNED SUBSIDIARY OF SUPERSCOPE INC., CHATSWORTH, CALIFORNIA 91311 RadioFans.CN 收音机爱 好者资料库 Eo FT A To obtain maximum performance and enjoyment from the Model 5220

2、Stereo Cassette Deck, please study these instructions carefully. Install ing and operating the Model 5220 is not compi i cated, but the flexibility provided by its nume rous operating features merits your becoming fam il iar with its controls and connections. Our recommended procedures will assure y

3、ou of securing the superb performance for which the Model 5220 was designed. For convenience, this manual is divided into three parts. The first part covers installation. The second part outlines a simplified operating pro cedure. The third part provides a more detailed description of the features o

4、f the Model 5220, and explains some of the finer points of recording techniques. Technical specifications are also in cluded in this part. For quick identification of the many controls, connection facilities, and adjustments on the Model 5220 all references to them in this manual are printed in BOLD

5、FACE type. AC Line Operation WARNING : TO PREVENT FIRE OR SHOCK HAZARD, 00 NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. It is advisable to reta in all original packing material to prevent damage should you wish to transport or ship the Model 5220 (refer to page 16 for repacking and shipping instru

6、ctions). Be careful that you do not inadvertently throwaway or lose the parts packed with the unit. Please inspect your Model 5220 Stereo Cassette Deck carefully for any signs of shipping damage. Our very strict quality control and professional pride ensure that each Model 5220 left the factory in p

7、erfect condition. If the unit is damaged or fails to operate, immediately notify your dealer. If the unit was shipped to you directly, notify the transportation company with out delay. Only you, the consignee, may institute a claim against the carrier for shipping damage. Save the carton and all pac

8、king material as evidence of damage for their inspection. Should assistance be required, the Marantz Company will cooperate fully in assisting your claim. Please fill out and mail the Warranty Registration Card within ten days of purchase. The card will remain on fi le at the Marantz Company for the

9、 duration of the warranty period. We also strongly advise that you retain your sales receipt to provide proof of purchase in the event that Warranty service is sought. RadioFans.CN 收音机爱 好者资料库 Figure 1 shows the location of the main cont rols Before proceeding with connecting your new tape and switch

10、es on the Model 5220. Listed by each deck, take a few moments to acquaint yourself feature is the number of the page where a with some of the features and term inology you description about the feature appears. will encounter in this book. Model 5220 Stereo Cassette Deck Peak Indicator How to connec

11、t, page 5. How to set proper recording levels, page 8. How to use with a Dolby System , page 12. How to install in a cab inet, page 3. Large VU Meters See page 8. Cassette Compartment How to ma ke really excellen t recordings, page 9 . Pow er Switch Clea ning the head s, page 10 . AC po wer co nnect

12、ion, page 5. p u _ _ r ph.,. Headphone Jack Tape Counter with Memory See page 8. See page 8. Limiter Tape Transport Controls See page 8. Simplified Operating Procedure, page 6. Bias/Equalization Selector Input Level Controls See page 9. The typ e and brandof tape you use, pa ge 9. Microphone Jacks D

13、olby FM Switch Dolby NR Switch Figure 1. Main Controls and Switches I 2 RadioFans.CN 收音机爱 好者资料库 liON F MECHANICAL INSTALLATION The Model 5220 Stereo Cassette Deck can be installed in two basic ways : In a beautiful walnut veneer cabinet for placement on a table or shelf, or mounted in your own cabin

14、etry or custom installation. MARANTZ WALNUT CABINET An attractive walnut veneer cabinet, Model WC-15T, may be obtained from your Marantz dealer. The case provides for proper ventilation, and can be placed on furniture, or on a bookshelf. Complete instructions for installation are pro vided with the

15、WC-15T. CUSTOM INSTALLATIOII When planning a custom installation, allow ade quate spacing between the Model 5220, cabinet surfaces, and other componets for adequate venti lation. To install the Model 5220 Stereo Cassette Deck in a custom cabinet, cut an opening 16-7/8 inches wide by 5-1/8 inches hig

16、h. Since the front panel of the Model 5220 is larger than the cutout, it will neatly hide the edges of the cut. Remove the plastic feet from the bottom of the unit and slide it through the opening. To support the weight of the Model 5220, adequate bracing across the rear of the cabinet must be locat

17、ed to provide contact with the rear of the unit. 3 RadioFans.CN 收音机爱 好者资料库 _ _ 1 H3/383t1 03t131S an dlllV 03H31S o 0 88888 8 o 0 ._.r_-_.-.: r_-_ _ _,_-.- -.-_-._.-.-.=-. -,.-.:,:-._.,. - .,. - Ina 3dVI NI 3dVI 1 H1 H RadioFans.CN 收音机爱 好者资料库 CONNECTING THE MODEL 5220 REAR PANEL SIGNAL COIINECTIONS

18、Figure 2 shows th e location of th e input and output jacks on the rear panel. These jacks are for permanent connections. Front panel jacks and their use will be discussed later. All connections to the rear panel should be made with the power to the entire system tu rned off. The rear panel signal c

19、onnections should be made with shielded audio cables. To avoid confusion, connect one cable at a time between the 5220 and the other components of your system. This is the safest way to avoid cross-connecting channels or confusing signal source outputs with inputs. When connecting audio cables inser

20、t the con nectors completely into the jacks. Loose con nections may cause hum and noi se. LINE INPUTS These jacks will accept signals from any line level source. They are also the inputs for the DOLBY FM circuitry in the Model 5220. Therefore, these jacks should be connected to the set of t ape outp

21、ut jacks on your receiver, which will supply signals from FM and other audio sources. If you own an audio system comprised of separate components, connect the LINE IN jacks of th e Model 5220 to th e t ape output jacks of your preamplifier. LINE OUTPUTS AND OUTPUT LEVEL CONTROLS Connect the OUTPUT t

22、o the tape monitor input jacks of your receiv er. The LEVEL controls located next to the output jacks determine the volume output of each channel. They operate the same as a volume control, and can be turned with a screwdriver. The purpose of these adjustments is to match the output level of the Mod

23、el 5220 to the input sensitivity of the tape monitor circuits in your receiver. When the LEVEL controls are properly adjusted, th e volume through your speakers wi ll remain constant as the tape monitor is switched in and out. Of course, you cant make these adjustments until the system is set up, so

24、 for the present time, the LEVEL controls should be set approximately one qu arter turn above the mini mum volume setting. AC POWER SOURCE CONNECTION With the POWER switch set to the OF F (out) position, plug the AC line cord into an AC outlet providing the proper voltage. CAUTION: DO NOT PLUG THE M

25、ODEL 5220 INTO A DC OUTLET, AS SERIOUS DAMAGE WILL OCCUR. If you r receiver has a switched AC outlet on its rear panel, you may find it convenient to plug the Model 5220 into that outlet. Now that you have connected your Model 5220 to you r receiver and external t ape recorder, you are doubtlessly e

26、ager to try it out. So, the following section will outline a simplified operat ing procedure to follow so you can begin record ing and listening to your new Stereo Cassette Deck immediately. After becoming familiar with the Stereo Cassette Deck, you may take full advantage of its many featu res and

27、operating versati Iitv. 5 RadioFans.CN 收音机爱 好者资料库 - o INSTRUCTIO - reejee:1 ree: play First, set the controls and switches on the Model 5220 as foll ows: PO WE R Switch OFF (out) TAPE TRAN SPO RT Controls STOPPE D DOLBY NR Switch OFF (out) DOLBY FM-OFF Switch (in) DOLBY FM-OII Switch (out) BIAS/EQ S

28、ELECTOR Switches Depress button that matcheskind of tape used. LIMITER OFF (out) ALL LEVEL Controis Minimum (to left) After setting the controls and SWitches, record on a blank cassette as follows: 1. Depress th e POWER swi tch. Th e meters will illuminate, indicating the units power is on. If they

29、don t, check to make sure the power cord is plugged in. Turn on the sou rce equipment (receiver, t urntable, etc.l 2. Befo re inserting the cassette, take up the slack of the tape to prevent it from becoming entangled around the capstan. Twist the tape hub inside t he cassette with your fingernai l

30、or with a pencil. (See Figure 4.) 3. Depress the EJECT button fu lly to open the cassette compartment and raise th e cassette holder. -, ff slop pause I Eject Record Rewind Play Fast Forward Stop Pause Button Button Button Button Button Button Button Figure 3. Tape Transport Controls I 6 RadioFans.C

31、N 收音机爱 好者资料库 4. Insert the cassette with the desired side for CAUTION: Do not attempt to manually lift the recording up. Close the lid. IIOTE: The cassette can only be inserted if the cassette holder is up. 5. Play the audio signal source (phono, tuner, etc.) with the tape monitor switch on the rece

32、iver in the source position. 6. Press the RESET button on the tape COUN TER to reference the beginning of the re cording. 7. Place the Model 5220 in the record mode: Depress the record (REC) and PLAY buttons simultaneously. The REC light between the VU meters will illuminate. NOTE: The smoothest way

33、 to engage the record mode is to depress the REC button first. Then, while holding it down, depress the PLAY button. 8. Slide the MASTER LEVEL Control to its maximum setting (to the right). All other controls should be set at minimum. 9. Gradually increase the left and right LINE level controls whil

34、e watching the VU meters. Adjust the level controls so that the loudest passages of the program deflect the pointers of the meters as fully as possible with minimum triggering of the PEAK level in dicator (light emitting diode). 10. Set the tape monitor switch on the receiver to the tape position. N

35、OTE: If the volume level changes when the tape monitor is switched in, adjust the OUTPUT LEVEL controls on the rear panel of the 5220. The volume level should remain constant as the tape monitor is switched in and out. 11. When finished recording, reduce the MASTER LEVEL control to minimum and press

36、 the STOP button. 12. Rewind the tape by depressing the rewind (REW) button. Stop the tape when the COUNTER registers zero, or use the MEMO RY feature (see page 8). 13. Play back the tape by pressing the PLAY button. The Model 5220 is now playing back the tape you just recorded. The following sectio

37、ns will explain the front panel features and some methods of adding more sophistication to your recording technique. pushbuttons when they are in the depressed position. The pushbuttons are mechanically locked into posi tion and can be released only by depressing the STOP pushbutton. The PAUSE pushb

38、utton can only be released by pressing it a second time. 7 RadioFans.CN 收音机爱 好者资料库 A E VU METERS AND PEAK INDICATORS Two large VU meters in the Model 5220 monitor the relative recording and playback level of each channel. Al l meters are time sensitive devices. In oth er words, it takes a short amou

39、nt of time for the meter to respond to a quickly appl ied signal. Even though the meter needle and other moving parts are very lightweight, they still have some inertia and are relatively sluggish when compared to the instantaneous natu re ofaudio peaks. The meters, then, indicate an average value r

40、eading w ith which to monitor the average level and balance of the two channels. The Model 5220 is also equipped with a PEAK indicator wh ich, when used in conjuncti on w ith the VU meters, is a valu able aid to proper recording level adjustment. The PEAK indicator, unlike the meters, reacts instant

41、aneously to audio transients du ring recording. The indicator illu mi nates if an audio transient strong enough to cause tape saturation (distorti on) occurs. If the PEAK indicator flashes repeatedly, the recording level should be reduced. INPUT LEVEL CONTROLS On the front panel are four independent

42、 slide type input level controls and a stereo MASTER LEVEL control. The MIC controls receive their inputs from the left and right MIC jacks on the front panel. The LINE controls receive their signals from the rear panel LINE INPUT jacks. Th e four input controls, or sliders, combine the ir audio sig

43、nals in a stereo mi x in the propor ti ons chosen by you, the recordist. They assign the audio inputs to the left and right stereo outputs of the mixer as indicated by the letters L and R beside each slider slot. NOTE: When microphone are selected for re cording, do not monitor through speakers, as

44、th is will cause howling (acoustic feedback) which could damage your aud io equipment. Use headphones for monitoring. MASTER LEVEL CON TROL channels without changing the input slider posi tions and without affecti ng their proportionate audio levels. If, for instance, the four input levels are mixed

45、 in the exact proportions you want, but the VU meters register too high a reading, reduce the MASTER LEVEL accord ingly. The MASTER LEVEL slider can be used to fade out or fade in . Forexample, wh en maki ng a cassette record ing of a phonograph record, yo u may wish to fade out the mu sic gradually

46、 just before th e end of th e tape is reached. This way, you will avoid th e abrupt cut-off of sound tha t occu rs during playback wh en the cassette runs outof tape. Likewise, the music cou ld be faded in at the beginn ing of the cassette. PEAK LIMITER The peak LIMITER, when in use, automatically r

47、educes the record level during sudden volume surges. By preventing the peak recording level from exceeding 0 VU, the peak LI MI TER mi ni mizes di stortion. T he LIMITER is not the same as an A.L. C. (Automatic Level Con trol) circuit; it is designed rather as a safeguard against high input signals

48、that you had not anticipated when you adjusted the record levels in itially. Th e LIMITER is also advantageous when record ing sources such as radio programs or live music whose peak volume levels are sometimes unpredictable. If the recording levels were set much too high and the LIM ITER were activ

49、ated, it would tend to compress th e dynamic range of th e music. In other words, not only the peaks, but all loud passages would be reduced in volume. Therefore, the recordi ng levels should be set before the LIMITER is turned on. PHONES JACK Th is jack accepts headphones utili zing a standard three conductor phone plug. It is internally connected to the output