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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 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

L A   F I C H E   D A N S   L A   B O R N E   C O R R E -

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

3kHz

OFF

HI-MID ATT.

VOL

HF POWER

TWEETER

WOOFER

LF POWER

TWEETER

LEVEL

-3dB

0dB

0dB

ON

19

Содержание NF-1

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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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