OTARI MX-5050MKIII-2 Operation Manual Download | Manualshive

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KW-4R REEL ASSEMBLY [ 9 ] :

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Summary of Contents for MX-5050MKIII-2

Page 1: ...ATION MANUAL Richard L Hess Audio Tape Restoration I 877 TAPE FIX Toll Free U S S Canada 14845 6 Yonge Street Suite 124 Aurora ON L4G 6H8 CANADA 905 713 6733 V 905 751 1984 F http www richardhess com...

Page 2: ...or shock hazard Do not expose this appliance to rain or moisture Do not remove cover No user serviceable parts inside Refer servicing to qualified service personnel PLEASE READ THROUGH SAFETY INSTRUC...

Page 3: ...entilation operatings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings Heat The appliance should be situated away fro...

Page 4: ...ply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules which are de signed to provide reasonable protection against such interference when operated in a comme...

Page 5: ...822381 Telex 849453 OTARI G Fax 0753 823707 OTARI ELECTRIC CO LTD 4 29 18 Minami Ogikubo Suginami ku Tokyo 167 Japan Phone 03 333 9631 Telex J26604 OTRDENKI Fax 03 331 5802 OTARI ELECTRIC DEUTSCHLAND...

Page 6: ...ATION 3 1 3 1 Controls and Indicators 3 9 3 2 Operating Informatin 3 9 3 2 1 Use of the Reel Hold Down Knobs 3 10 3 2 2 Pre operating Procedure 3 11 3 2 3 Reproduction 3 12 3 2 4 Normal Recording 3 13...

Page 7: ...d a memory stop button for auto matically searching the zero tape time location with F FWD or RWD mode ceramic tape guides big head housing lower transport noise and xmproved specifications for distor...

Page 8: ...tuning the record and reproduce equalizer adjustment controller is necessary 4 In order to give optimum performance for different types of recording tapes record bias level and equalization con trols...

Page 9: ...f the MX 5050 MKIH 2 are as listed in Table 1 2 NOTE Specifications are based on tape speeds of 7 1 2 and 15 ips Specifications although obtainable when serviced by qualified service personnel are not...

Page 10: ...Switchable on the rear panel but calibration is necessary Frequency Response 15 ips 30 Hz to 20 kHz 2 dB 7 1 2 ips 20 Hz to 18 kHz 2 dB 3 3 4 ips 20 Hz to 10 kHz 2 dB Specifications refer to a 1 kHz r...

Page 11: ...d tape noise when using Scotch 226 magnetic tape Unweighted Using a 30 to 18 kHz RC filter to atten uate noise outside the audio spectrum Weighted Using an NAB or ASA A weighting filter and a 1 kHz re...

Page 12: ...amage during transportation and will void the warranty Please refer to the illustration which is attached to flap of the packing box regarding the repacking method 2 2 CABLE CONNECTION Before installi...

Page 13: ...lide switch on the back panel which selects one of these two standards to change stand ards merely slide the switch to the desired position Fig 2 2 a Standard Switch Position on Shipment NAB Fig 2 2 b...

Page 14: ...ctive balanced input Foating type Input impedance 10 k ohms Minimum input 15 dBm Maximum input before clipping 30 dBm Optional transformer balanced input Input impedance 10 k ohms Minimum input 15 dBm...

Page 15: ...um and Low Located on the Amplifier front panel are 3 LED Ref Flux Selector Indicator displays which indicate the position of the switch 185 250 320 Position Flux Relative Level Test Tape Recording Ta...

Page 16: ...follows 1 Connect the center conductor of the single conductor shielded cable to pin 3 of the connector 2 Connect the cable shield to pins 1 and 2 Fig 2 3 Input Output Assembly Connector Wiring LINE...

Page 17: ...e system and step procedures for the various modes of operation operating step by 3 1 CONTROLS AND INDICATORS Table 3 1 Tape Transport Controls and Indicators 19 18 15 16 17 18 22 Located inside the h...

Page 18: ...the record mode when the PLAY push button is pushed the unit enters the reproduce mode This is called Punch out Punch in and Punch out are used for overdubbing in con junction with the sel rep functio...

Page 19: ...generate the pulses for the elapsed time indicator 22 Takeup Reel Used to take up tape 23 Pinch Roller Used to correctly transmit the rota tion of the capstan to the tape 24 Tension Arm with Safety S...

Page 20: ...pex Operating level M 250 nWb m MRL reference fluxivity of 250 nWb H 320 nWb m BASF or MRL IEC reference level In the normal position the repro duce level is controlled by the OUTPUT controls of the c...

Page 21: ...plays which indicate the position of the Record Level Selector switch which is located on the back of the unit 3 2 OPERATING INFORMATION 3 2 1 USE OF THE REEL HOLD DOWN KNOBS W NAB hub reel hold down...

Page 22: ...mplifier to the PHONE jack 3 2 3 REPRODUCTION To reproduce proceed as follows 1 Perform all steps in the pre operating procedure 2 Set the channel RECORD selector switch es to the out position 3 Set t...

Page 23: ...tor switch to the for the channel being monitored in Tape position Set the MONITOR selector switch to the out Source posi tion for the channel to be recorded Adjust the LINE MIC INPUT level control so...

Page 24: ...t and Maintenance Equipment Equipment Type Suggested Model Used For Period Head cleaner OTARI ZA 51B Cleaning the heads and guides 8 hours Isopropyl or denatured alcohol Any OTARI Clean ing Kit ZA 51B...

Page 25: ...15 ips NAB 2 1 J 2 0 5 250 nWb m 7 1 2 ips NAB 2 1 T 2 0 4 250 nWb m 3 3 4 ips NAB 2 1 F 2 0 1 A 250 n W b m 15 ips IEC 2 1 J 3 0 3 320 n W b m 7 1 2 ips IEC 2 1 T 3 0 2 320 n W b m 1 Magnetic Referen...

Page 26: ...requent ly if visual inspection indicates that cleaning is required To clean the head assembly proceed as follows 1 Disconnect the power cable from the power supply 2 Lift the head cover as illustrate...

Page 27: ...capstan Lubricate the capstan every six months or after each 1 000 hrs W of operation whichever occurs first or as required using the recommended lubricating oil Table 4 1 For lubrication pro ceed as...

Page 28: ...rd IEC Equalization Short circuit flux Open circuit flux 5 4 LINE VOLTAGE CONVERSION The line voltage is converted by resoldering the wiring on the voltage selection terminal proceed as follows 1 Remo...

Page 29: ...the main power fuse FS1 proceed as follows 1 Remove four screws marked C in Fig 5 5 holding bottom panel to the unit 2 Open the bottom panel Control P C B assembly is located on the bottom panel 3 Tak...

Page 30: ...the information on speed conversion 1 Refer to page 5 7 to access to control P C B assembly It is located on the bottom panel 2 Take a look at the control P C B assembly There is black speed select sw...

Page 31: ...parts or the parts difficult to obtain in the field Also the lists include the parts which should be replaced with the exact same parts supplied by OTARI to maintain the performance Many diodes trans...

Page 32: ...f T i M F I R1 2 8 j j 3 D C 3 0 v f COMPO SIDE 740 0 0 7 X t til SAFETY COMPONENT I REPLACE ONLY WITH THE SPECIFIED COMPONENT FOR SAFETY REASON 3lllunlLim iUBLllJrillLnTTTTTTTTTTTII 111111111 n ii i...

Page 33: ...r R4 03 Resistor R302 Resistor SW1 Switch SW2 3 Switch PB9A437 CN 402 213 El Type 2P CN403043 El Type 3P CN403075 Pin Housing 3P CN404044 El Type 4P CN405045 El Type 5P CN406046 El Type 6P CN406077 Pi...

Page 34: ...lists Parts list titles are followed by a key number which refers to the corresponding exploded view drawing number When ordering parts give a full description using both the part number and the name...

Page 35: ...7 4...

Page 36: ...P C B T506804 17 Cover B Deck T506803 18 Rock Bank PZ1F016 19 Bracket A T506805 20 Bracket B T506806 21 Bracket Spring T506807 22 Stopper T506808 23 Arm A T506810 24 Arm B T506811 25 Shaft T506812 26...

Page 37: ...7 7...

Page 38: ...C 4Y 9 Pinch Roller Ass y KP 4N 10 Head Ass y KH 41I 11 Roller Ass y Impedance KI 4J 12 Timer Ass y Tape SR 5K 13 SW Ass y Control CB 253 14 Cover Upper K105827 15 Supporter Front Cover K105829 16 Fra...

Page 39: ...KC 4Y KP 4N KP 4L CAPSTAN ASSEMBLY 5 PINCH ROLLER ASSEMBLY 5 SHIFTER ASSEMBLY 5 7 11...

Page 40: ...Parts No 1 Button A KN2069 2 Button B KN2070 3 Button C KN2071 4 Button D KN2072 5 Guide Button CB20602 6 Guide Button CB20701 7 Panel Top Control T506705 8 P C B Ass y LED B PB 83E 9 Switch Micro WH1...

Page 41: ...7 KA 4X 4Y TENSION ARM ASSEMBLY 7 KI 4J IMPEDANCE ROLLER ASSEMBLY SR 5K TAPE TIMER ASSEMBLY 7 7 15 T S3 6...

Page 42: ...y Erase 4T 2ch B4H Head Ass y Erase FT BF Head Ass y Erase 2T 2ch B2H DIN 11 Head Ass y Repro 4T 2ch GH4P069C B2H B2H Head Ass y Repro 2T 2ch B4H FT 12 Head Ass y Rec 2T 2ch GH4R005B B2H B2H Head Ass...

Page 43: ...KW 4R REEL ASSEMBLY 9 7 19 C 4 ia...

Page 44: ...ARE IN FARADS 50V 3 CAPACITOR SYMBOL HARKS ARE AS FOLLOWS ALUMINUM ELECTROLYTIC CAPACITOR BIPOLAR ALUM I NUN ELECTROLYTIC CAPACITOR MYLAR LM CAPACI TOR 1 5 X 5 0 V POLvSTYRENE FILM CflPflC I TO R t S...

Page 45: ...2 CAPACITANCE VALUES ARE IN FARADS 50V 3 CAPACITOR SYMBOL MARKS ARE AS FOLLOWS H ALUMINUM ELECTROLYTIC CAPACITOR 91 POLAR ALUMINUM ELECTROLYTIC CAPACITOR MYLAR FILM CAPACITOR 57 50V POLYSTYRENE FILM...

Page 46: ...LUEJ AM IA FAAA03 Sa i c a p a c h b a 3t r ia l aaa3 aae as f a l l s m A L uniAun l e c t a b l t t ic c a fa c jtba 9 alPBLAA ALUAIAUB ELECTB8LTTIC CAFACITBA pyla a f L fi A P A C ira p i 5 i jQ V...

Page 47: ...ID W G NO...

Page 48: ...DER SCHEMATIC DIAGRAMS TYPE E OTARI PART DESCRIPTION DWG A10620B REC REP AMP ASS Y 3 8097 PB44S0C CONTROL P C B ASS Y 3 9055 PB7800A REC DELAY CONTROL P C B ASS Y 3 8495 T50680B WIRING DIAGRAM 3 9054...

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