Fostex nf1
This is the 4 pages manual for fostex nf1.
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Extracted text from fostex nf1 (Ocr-read)
Page 1
NF-1 & NF-1ANF-1 & NF-1A SAFETY INSTRUCTIONS Read instructions - All the safety and operating instruc- tions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future reference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instructions - All operating and use instructions should be followed. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by the manufac- turer. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to over- turn. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation - The appliance should be situated so that its location or position does not interfere with its proper ven- tilation. For example, the appliance should not be situ- ated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installa- tion, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.Heat - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance. Grounding or Polarization - The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience recep- tacles, and the point where they exit from the appliance. Cleaning - The appliance should be cleaned only as rec- ommended by the manufacturer. Nonuse Periods - The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the en- closure through openings. Damage requiring Service - The appliance should be ser- viced by qualified service personnel when: A. B. C. D. E. Servicing - The user should not attempt to service the ap- pliance beyond that described in the operating instruc- tions. All other servicing should be referred to qualified service personnel. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRE- SPONDANTE DE LA PRISE ET POUSSER JUSQU' AU FOND. CAUTION: ATTENTION: The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte- nance (servicing) instructions in the literature accompanying the appliance. The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the product's en- closure that may be of sufficient magnitude to constitute a risk of electric shock to persons. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOIS- TURE. 1. 2. 3. 4. 5. 6. 7. 8.The power supply cord or the plug has been damaged; or Objects have fallen, or liquid has been spilled into the appliance; or The appliance has been exposed to rain; or The appliance does not appear to operate normally or exhibits a marked changed in performance; or The appliance has been dropped, or the enclosure damaged. 9. 10. 11. 12. 13. 14. 15. 16. 17. NF-1A Block Diagram INPUT (UNBAL) -10dBV INPUT (BAL) +4dBu 1: GND 2: HOT 3: COLD+3dB LO FREQ. 60Hz-3dB HIGH FREQ. 10kHz +3dB -3dB 3kHzOFF HI-MID ATT.VOLHF POWER TWEETER WOOFER LF POWER TWEETER LEVEL -3dB0dB0dB ON 19
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NF-1 & NF-1ANF-1 & NF-1A Input PCB 3 2 8 4 1 5 7 6 5 7 6 5 7 6 3 2 8 4 1 17 19 16 18 20 S110D 7 9 6 8 10 2 4 1 3 21 22 5 17 19 16 18 20 2 4 1 3 21 22 5 1 3 2 7 8 3 2 8 4 1 3 2 1 5 4 3 2 1 5 4 J101 INPUT (UNBAL) INPUT (BAL) -10dBV +4dBu J102 14 C50 JUMPER 3 R106 10K 2 8 7 3 2 4 5 1 R108 8.2KC102 10/16 C101 10/16 L102 BEADR102 20K R101 20K R103 20K L101 BEAD R107 10KR104 20K +15V C105 1/50 C106 1/50 -15V C51 NONU101A BA4560NC104 47p CER C103 47p CERC107 10/16 R105 47KC111 0.027 PESC117 0.027 PES R110 39KR111 82K S110B R113 1MR114 43KR112 430KU101B BA4560N C120 10/16 R115 47KC131 10/16 R131 10K R132 10K C134 0.0022 PES R136 20KR133 6.8K C113 1/50 -15V +15V R134 18K R135 4.7K U102A BA4560N C112 1/50 S130AR121 47K C122 0.015 PESR122 3KC118 10/16 R123 3K C123 0.015 PES C124 0.015 PESU102B BA4560N R124 1.6KR127 470 R125 1K C125 NON R126 4.7KC126 10/16 R128 47KS120A VOL. R140 10KA C121 10/16 U103B BA4560N R139 47K R129 4.7KR120 4.7K -15V1 2J103 TO POWER LEDJ104 TO POWER AMP 1 2 3 4 5 +15V R117 2K C119 NON C132 1/50 +15V U103A BA4560N R141 10KB C115 10/16 C133 1/50 R116 47K-15V R118 3K C114 1/50 R119 1.6K TWEETER LEV. HI-MID ATT. OFF ON HI-FREQ. +3dB 0dB -3dB LO FREQ. +3dB 0dB -3dB C136 10/16S130D R137 20K C135 NON S110A TABLE OF CONTENTS NF-1 owner's manual : 8288457000 (for export & domestic model) NF-1A owners manual : 8288459000 (for export model) : 8288460000 (for domestic model) Parts List, exploded views and circuit diagrams are given in this manual to assist the service technician in maintaining the Model NF-1 & NF-1A. NOTES The following accessories are supplied with NF-1 as the standard accessories. * * Following is the packing material for the Model NF-1. * Carton, inner, 3 pads, NF-1 : 8228739000 Carton, outer, NF-1 : 8228917000 Sheet, mirror : 82167290001. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . . . 3. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . . . 4. CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . .4 6 7 17 Following is the packing material for the Model NF-1A. * Carton, inner, NF-1A : 8228738000 Carton, outer, NF-1A : 8228916000 Packing, side, NF-1A : 8228466001 Packing, front, NF-1A : 8228466002 Sheet, mirror : 8216729000 183