Fostex NF-1 Service Manual Download

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NF-1 & NF-1A

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, fuse, S-N5057

J001

8245 3210 00

Connector, PL, jack, AC-INLET, 3P,

0714-FR7

L001, 002 8242 1340 01 Filter, EMI, 6 hole

S001

8253 4710 03 SW, PI, rocker, power, EST15

W001

8277 1630 15 Cable assy, earth lug, SIN1.8, L150

W003, 004 8245 5430 00 Terminal, IPS-5007

W005, 006 8277 1610 10 Cable assy, SIN1.8 - wire, L100

• SW PCB assy

Ref. No.

Part No.

Description

R121

8230 1384 73 HT, Carbon, 1/4W, 47k

Ω

, 5%

R122, 123 8230 1383 02 HT, Carbon, 1/4W, 3k

Ω

, 5%

R124

8230 1381 62 HT, Carbon, 1/4W, 1.6k

Ω

, 5%

R125

8230 1381 02 HT, Carbon, 1/4W, 1k

Ω

, 5%

R126

8230 1384 72 HT, Carbon, 1/4W, 4.7k

Ω

, 5%

R127

8230 1384 71 HT, Carbon, 1/4W, 470

Ω

, 5%

R128

8230 1384 73 HT, Carbon, 1/4W, 47k

Ω

, 5%

R129

8230 1384 72 HT, Carbon, 1/4W, 4.7k

Ω

, 5%

R131, 132 8230 1381 03 HT, Carbon, 1/4W, 10k

Ω

, 5%

R133

8230 1386 82 HT, Carbon, 1/4W, 6.8k

Ω

, 5%

R134

8230 1381 83 HT, Carbon, 1/4W, 18k

Ω

, 5%

R135

8230 1384 72 HT, Carbon, 1/4W, 4.7k

Ω

, 5%

R136, 137

8230 1382 03 HT, Carbon, 1/4W, 20k

Ω

, 5%

R139

8230 1384 73 HT, Carbon, 1/4W, 47k

Ω

, 5%

R140

8240 2930 06 Pot., PI, RT9, 10k

Ω

A, EVUE2A

R141

8240 2930 07 Pot., PI, RT9, 10k

Ω

B, EVUE3A

CAPACITORs

ALU = Electrolytic type

CER = Ceramic type

PES = Mylar type

Ref. No.

Part No.

Description

C050, 051

N/A

C101, 102 8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C103, 104 8232 8014 70 VT, CER, 50V, 47pF, 5%, SL

C105, 106 8232 1461 05 VT, ALU, 50V, 1µF, 20 %, SME-VB

C107

8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C111

8232 9012 73 VT, PES, 50V, 0.027µF, 5%, AMZF

C112~114 8232 1461 05 VT, ALU, 50V, 1µF, 20 %, SME-VB

C115

8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C116

N/A

C117

8232 9012 73 VT, PES, 50V, 0.027µF, 5%, AMZF

C118

8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C119

N/A

C120, 121 8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C122~124 8232 9011 53 VT, PES, 50V, 0.0015µF, 5%, AMZ

C125

N/A

C126

8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C131

8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

C132, 133 8232 1461 05 VT, ALU, 50V, 1µF, 20 %, SME-VB

C134

8232 9012 22 VT, PES, 50V, 0.0022µF, 5%, AMZF

C135

N/A

C136

8232 1431 06 VT, ALU, 16V, 10µF, 20 %, SME-VB

MISCELLANEOUS

Ref. No.

Part No.

Description

E001

Wire, jumper, F5

E002

Wire, jumper, F10

J101

8245 3390 09 Connector, PI, jack, phone,

YKB21-5006

J102

8245 2680 03 Connector, PI, jack, XLR, NC3FAH2-0

J103

8245 0530 02 Connector, PI, jack, 8283, 2P, WHT

J104

8245 3080 05 Connector, PI, jack, 5P, SBRK 5S-4

L101, 102 8242 1860 13 Filter, T, EMI, LEF7B-M3R2T

DIP: Dual In Line

Horizontal mount

ZIP: Zigzag in-line package

SIP: Single in-line package

Vertical mount

Taping device

Penetrate mount

I form (straight)

L form (right angle)

DG: Digital

AN: Analogue

Abbreviation

Ref. No.

Part No.

Description

S110

8253 6550 19 SW, PL, slide, 4-3, non-shortening,

SSSFI, L06

S120

8253 6550 20 SW, PL, slide, 2-2, non-shortening,

SSSFI, L06

S130

8253 6550 19 SW, PL, slide, 4-3, non-shortening,

SSSFI, L06

Ref. No.

Part No.

Description

D001

8234 1044 00 Opt., LED, GRN, SLR-342MG3F

W001

8276 3340 20 Cable assy, 2P,

WHT8263/F-8263/F, L200

Y101

8207 0051 08 Spacer, LED, 11, LH-5-11

• LED assy

NF-1A

Specifications and physical appearance are subject to change without notice for product improvement.

Speakers

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

Ω

Reproduction Frequency Response

50 Hz ~ 40 kHz

Enclosure volume

9.2 liters

Maximum output sound level

106 dB (with VOL max./rated input)

Amplifiers

Output power

60 W each for low and high frequency amplifiers

Tweeter SPL adjustable level

± 3 dB

Filter characteristic adjustable level

HI-FREQ (10 kHz)

+ 3 / 0 / - 3 dB (selective)

LO-FREQ (60 Hz)

+ 3 / 0 / - 3 dB (selective)

HI-MID ATT. (3 kHz)

0 dB when switched off.

- 3 dB when switched on.

Input terminals

XLR-3-31 type (for balanced input)

∅

6 mm phone jack (for unbalanced input)

Normal input level

+4 dBu (XLR balanced input)

-10 dBV (phone unbalanced input)

Input impedance

20 k

Ω

or more

Crossover frequency

5 kHz

Others

Weight

Approx. 11 kg

Power supply

120 V AC, 60 Hz

230 V AC, 50 Hz

Power consumption

52 W

320 mm

267 mm

340 mm

240 mm

• NF-1A Dimensions

Summary of Contents for NF-1

Page 1: ...al 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 2000 8288790000 ...

Page 2: ...e 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 requ...

Page 3: ...20 4 7K 15V 1 2 J103 TO POWER LED J104 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 16 S130D R137 20K C135 NON S110A TABLE OF CONTENTS NF 1 owner s manual 8288457000 for export domestic model NF 1A owner s manual 8288459000...

Page 4: ...8 9 10 11 1 1 1 3 2 8 4 1 5 7 6 3 1 2 1 1 F1 FUSE C506 47p CER R507 10K U502 LM3886TF IN OUT3 V IN 38V V NC GND MUTE V R506 150 C505 1 50 C509 0 1 PES R509 10 NC NC R505 1K C508 220p CER 38V R508 20K TO LF SPEAKER J502 TO HF SPEAKER 1 2 3 4 R515 10K C513 47p CER 1 2 4 5 6 7 8 9 10 11 U510 LM3886TF IN OUT3 V IN 38V V NC GND MUTE V NC NC 38V C517 0 1 PES R516 20K C516 220p CER U501B BA4560N C511 0 0...

Page 5: ... ALU 16V 10µF 20 SME VB C132 133 8232 1461 05 VT ALU 50V 1µF 20 SME VB C134 8232 9012 22 VT PES 50V 0 0022µF 5 AMZF C135 N A C136 8232 1431 06 VT ALU 16V 10µF 20 SME VB MISCELLANEOUS Ref No Part No Description E001 Wire jumper F5 E002 Wire jumper F10 J101 8245 3390 09 Connector PI jack phone YKB21 5006 J102 8245 2680 03 Connector PI jack XLR NC3FAH2 0 J103 8245 0530 02 Connector PI jack 8283 2P WH...

Page 6: ...Ω 5 R515 8230 1381 03 HT Carbon 1 4W 10kΩ 5 R516 8230 1382 03 HT Carbon 1 4W 20kΩ 5 R517 8230 1381 00 HT Carbon 1 4W 10Ω 5 CAPACITORs ALU Electrolytic type CER Ceramic type PES Mylar type Ref No Part No Description C002 003 8232 2054 78 VT ALU 63V 4700µF 20 SMH VNSN C004 005 8232 1461 05 VT ALU 50V 1µF 20 SME VB C006 007 8232 1431 06 VT ALU 16V 10µF 20 SME VB C008 8232 1431 07 VT ALU 16V 100µF 20 ...

Page 7: ...7280 00 Damping material 490 x 190 x 10 6 8214 3940 00 Bolt M3 torx button L20 T included in the enclosure assy 7 8214 3930 00 Bolt M4 torx button L20 T included in the enclosure assy 8 8216 7240 00 HP reflector NF 1 not included in the enclosure assy 9 8245 3580 00 Terminal CL S48 1 10 8276 9200 00 Cord red L 350 11 8276 9200 01 Cord blk L 350 NF 1 OVERALL EXPLODED VIEW PARTS LIST Ref No Part No ...

Page 8: ...F 1A 12 8216 7340 02 Sheet connector NF 1A 13 8221 3290 00 Bracket connector NF 1A 14 8207 0002 25 Bushing SR 6N3 4 15 8216 7350 00 Sheet chassis NF 1A 16 8218 7950 00 Plate name NF 1A NF 1A OVERALL EXPLODED VIEW Speaker Enclosure Section 1 2 4 5 8 3 6 7 PO WE R 8 9 10 11 12 13 14 BTP3 x 16BZn 15 16 Foil side of Input PCB assy INPUT NF 1A R139 R116 R119 R118 R128 R125 R127 R132 R136 C134 R133 R134...

Page 9: ... PCB assy SW NF 1A 24 8204 0580 04 Spacer 6 M3 x 6 25 8242 2680 00 Transformer power 120V USA CND NF 1A 8242 2690 00 Transformer power 230V EUR UK NF 1A 8242 2700 00 Transformer power 100V JPN NF 1A 26 8253 4230 00 SW WI rocker power SDDLA1 27 8216 7340 01 Sheet transformer NF 1A 28 8245 3400 00 Nut phone jack 29 8221 3360 00 Bracket PCB input NF 1A 30 8239 1003 19 Fuse 20 TLAG 3 15A 125V USA CND ...

Page 10: ...06 R507 R505 R516 R001 Q001 R002 Q002 U501 U001 W501 1 1 3 1 5 11 1 11 1 NF 1A PCB Pattern Drawing Parts side of Power Amp PCB assy D001 J501 P TRANS C013 C003 R517 U510 1 1 3 B B E E 11 U502 1 11 LF HOT HF HOT C517 R513 D003 C503 C504 R503 C510 R510 R511 C511 C504 C502 D002 C516 R512 J502 SPEAKER 1 4 R515 R003 R508 R505 R506 C508 C509 R507 C506 R509 R516 C512 C008 R002 R001 R005 R004 POWER AMP 82...

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