Fostex NF-1 Service Manual

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Fostex NF-1 Manual Information:

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Summary of Contents:

[Page 1] Fostex NF-1

NF-1 NF-1A Service Manual Model NEAR FIELD STUDIO MONITOR SPEAKER SYSTEM & 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....

[Page 2] Fostex NF-1

NF-1 & NF-1A NF-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 ...

[Page 3] Fostex NF-1

NF-1 & NF-1A NF-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 1618 20 S110D 7 9 6 8 10 2 4 13 21 22 5 17 19 1618 20 2 4 1 3 21 22 5 1 3 2 7 8 3 2 84 1 3 2 1 5 4 3 2 1 5 4 J101 INPUT (UNBAL) INPUT (BAL) -10dBV +4dBu J102 ...

[Page 4] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 4 17 1. SPECIFICATIONS Enclosure system 2-way bass-reflex system Drivers 160 mm HP woofer x 1 (low-leakage type) 20 mm Soft-Dome tweeter x 1 (low-leakage type) Impedance 8 Ω Frequency Response 50 Hz ~ 40 kHz Crosso...

[Page 5] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 16 5 Ref. No. Part No. Description 8274 2720 00 PCB Assy, SW, NF-1A 8251 9930 03 Plain PCB, SW, NF-1A Ref. No. Part No. Description C011 8256 0750 05 Spark killer, 0.0047µF C012 N/A E001 8239 0002 00 Holder, PI, fus...

[Page 6] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 6 15 2. CONTROLS, INDICATORS & CONNECTORS 1. Power LED 2. Heat sink 3. Loudness control [ VOL, -∞ ~ MAX (0dB) ] 4. Tweeter level control [ TWEETER LEVEL, -3 ~ 0dB ~ +3 ] 5. Hi-Mid attenuator [ HI-MID ATT., ON /...

[Page 7] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 14 7 SW 8251993 003 C011 C012 J001 L N W6 W3 PT W1 GND W4 PT (WHT) EUR/UK JPN/USA/CND T1A 250V 3.15A 125V L2 L1 W5 SW F1 • Parts side of SW PCB assy C011 C012 J001 LN W6 W3 PT W3 PT (WHT) L2 L1 W5 SW F1 • Foi...

[Page 8] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 8 13 Ref. No. Part No. Description 1 B805 5830 00 Woofer, NF-1 2 B805 5829 00 Tweeter, NF-1 3 8216 7300 00 Packing 4 8260 5770 00 Enclosure assy, NF-1A 5 8216 7280 00 Damping material, 490 x 190 x 10 6 8214 3940 00 B...

[Page 9] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 12 9 8251993 002 INPUT R139 R116 R119 R118 R128 R125 R127 R132 R136 C134 R133 R134 R135 C111 R113 R114 R105 C121C115 C114C118 C126 C131 C133 C113 C136 C120 C105 C106 C107 C102 C101 L102 L101 C119 R124 J103 21 C124 C1...

[Page 10] Fostex NF-1

NF-1 & NF-1A NF-1 & NF-1A 10 11 • Foil side of Power Amp PCB assy U502 U510 C509 C505 C007 C504 C503 C006 D003 D002 C005 C002 C003 C004 R504 R503 C501 C502 C511 R511 R510 C510 R512 R513 C517 J502 14 J501 D001 1 1 3 R516 C508 R506 R509 R508 ...