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Fostex NF-1 Service Manual

Near field studio monitor speaker system
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See also: Technical White Paper , Owner's Manual
Enlarged version
FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021
FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A.
© PRINTED IN JAPAN FEB. 2000 8288790000
Service Manual
Model
NF-1
&
NF-1A
NEAR FIELD STUDIO MONITOR
SPEAKER SYSTEM

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Summary of Contents for Fostex NF-1

  • Page 1 FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021 FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A. © PRINTED IN JAPAN FEB. 2000 8288790000 Service Manual Model NF-1 & NF-1A NEAR FIELD STUDIO MONITOR SPEAKER SYSTEM...

  • Page 2: Safety Instructions

    NF-1 & NF-1A 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. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightening flash with arrowhead symbol,...
  • Page 3 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. The following accessories are supplied with NF-1 as the standard accessories. NF-1 owner's manual : 8288457000 (for export & domestic model) NF-1A owner’s manual...

  • Page 4: Specifications

    Third Distortion 1000 2000 5000 10000 20000 40000 • NF-1 Dimensions 240 mm Specifications and physical appearance are subject to change without notice for product improvement. <NF-1 Frequency / Impedance Characteristic> 30º 60º 1000 2000 5000 10000 20000 40000 267 mm 274 mm 4.
  • Page 5 NF-1 & NF-1A Ref. No. Part No. Description R121 8230 1384 73 HT, Carbon, 1/4W, 47k , 5% R122, 123 8230 1383 02 HT, Carbon, 1/4W, 3k , 5% R124 8230 1381 62 HT, Carbon, 1/4W, 1.6k , 5% R125...

  • Page 6: Controls, Indicators, And Connectors

    NF-1 & NF-1A 2. CONTROLS, INDICATORS & CONNECTORS NF-1A 1. Power LED 7. Low-frequency filter selector 2. Heat sink 3. Loudness control [ VOL, - ~ MAX (0dB) ] 8. Unbalanced input terminal 4. Tweeter level control [ TWEETER LEVEL, -3 ~ 0dB ~ +3 ] 9.

  • Page 7: Exploded View, Pcb Assembly And Parts List

    NF-1 & NF-1A • Parts side of SW PCB assy C012 PT (WHT) T1A 250V EUR/UK 3.15A 125V JPN/USA/CND • Foil side of SW PCB assy J001 C011 J001 C011 C012 3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST NF-1 & NF-1A...
  • Page 8 NF-1 & NF-1A • Foil side of Input PCB assy C050 R107 R108 R106 L101 C101 L102 C102 C107 R103 C104 C103 R104 R102 R101 R112 C106 R114 C117 R113 R110 C105 R111 C111 C120 R105 R115 C131 C136 C135...
  • Page 9 NF-1 & NF-1A • Parts side of Input PCB assy R139 R116 R119 R118 R128 R125 R127 R132 R136 C134 R133 R131 R134 R135 R105 R115 C111 R111 R110 R113 C117 R114 R112 R101 R102 R103 L101 R106 R108 R107...
  • Page 10 NF-1 & NF-1A NF-1A PCB Pattern Drawing • Parts side of Power Amp PCB assy R503 C502 C504 C511 R511 R510 C510 R512 C516 R513 SPEAKER J502 C517 J501 TRANS D001 C504 C503 D003 D002 • Foil side of Power Amp PCB assy...

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