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SERVICE MANUAL
TYPE: YS1030

NX25P
WEB ACCESS: http://www.yorkville.com

WORLD HEADQUARTERS
CANADA

U.S.A.

Yorkville Sound

Yorkville Sound Inc.

550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA

4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA

Voice: (905) 837-8481
Fax: (905) 837-8746

Voice: (716) 297-2920
Fax: (716) 297-3689

Quality and Innovation Since 1963
Printed in Canada

Manual-Service-NX25P-00-1v1.pdf

IMPORTANT SAFETY INSTRUCTIONS
The exclamation point within an equilatereal
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.

This lightning 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 enclosure
that may be of sufficient magnitude to constitute a risk of
electric shock to persons.

Le point d’exclamation à l’intérieur d’un triangle équilatéral
est prévu pour alerter l’utilisateur de la présence
d’instructions importantes dans la littérature accompagnant l’appareil en ce qui concerne l’opération et la
maintenance de cet appareil.

Ce symbole d’éclair avec tête de flèche dans un triangle
équilatéral est prévu pour alerter l’utilisateur de la présence
d’un « voltage dangereux » non-isolé à proximité de l’enceinte
du produit qui pourrait être d’ampleur suffisante pour présenter
un risque de choque électrique.
S2125A

FOLLOW ALL INSTRUCTIONS
Instructions pertaining to a risk of fire,
electric shock, or injury to a person

SUIVEZ TOUTES LES INSTRUCTIONS
Instructions relatives au risque de feu,
choc électrique, ou blessures aux personnes

CAUTION: TO REDUCE THE RISK OF ELECTRIC

AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC
ELECTRIQUE, N’ENLEVEZ PAS LE COUVERT (OU LE
PANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE

SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.

REPARABLE PAR L’UTILISATEUR.

REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT

Read Instructions: The Owner’s Manual should be read and

understood before operation of your unit. Please, save these instructions for future reference and heed all warnings.
Clean only with dry cloth.

Packaging: Keep the box and packaging materials, in case the unit
needs to be returned for service.

Warning: To reduce the risk or fire or electric shock, do not expose

this apparatus to rain or moisture. Do not use this apparatus near water!

Warning: When using electric products, basic precautions should
always be followed, including the following:

Your unit should be connected to a power source only of the voltage specified in the
owners manual or as marked on the unit. This unit has a polarized plug. Do not use
with an extension cord or receptacle unless the plug can be fully inserted. Precautions should be taken so that the grounding scheme on the unit is not defeated.

Hazards

Do not place this product on an unstable cart, stand, tripod, bracket or table. The
product may fall, causing serious personal injury and serious damage to the product.
Use only with cart, stand, tripod, bracket, or table recommended by the manufacturer
or sold with the product. Follow the manufacturer’s instructions when installing the
product and use mounting accessories recommended by the manufacturer.
The apparatus should not be exposed to dripping or splashing water; no objects
filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the external wiring
connected to these terminals require installation by an instructed person or the use of
ready made leads or cords.
Ensure that proper ventilation is provided around the appliance. Do not install near
any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
No naked flame sources, such as lighted candles, should be placed on the apparatus.

Power Cord

Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet. The AC supply cord should be routed so that it is unlikely that it will be
damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.
Unplug this apparatus during lightning storms or when unused for long periods of time.
The unit should be serviced only by qualified service personnel.

êtres comprises avant l’opération de votre appareil. Conservez.
Gardez S.V.P. ces instructions pour consultations ultérieures et
observez tous les avertissements.
Nettoyez seulement avec le tissu sec.

Emballage: Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.
Avertissement: Pour réduire le risque de feu ou la décharge
électrique, n'exposez pas cet appareil à la pluie ou à l'humidité.
N’utilisez pas cet appareil près de l’eau!

Attention: Lors de l’utilisation de produits électrique, assurez-vous

Power Sources

Service

Veuillez Lire le Manuel: Il contient des informations qui devraient

d’adhérer à des précautions de bases incluant celle qui suivent:

Alimentation

L’appareil ne doit être branché qu’à une source d’alimentation correspondant au
voltage spécifié dans le manuel ou tel qu’indiqué sur l’appareil. Cet appareil est
équipé d’une prise d’alimentation polarisée. Ne pas utiliser cet appareil avec un
cordon de raccordement à moins qu’il soit possible d’insérer complètement les trois
lames. Des précautions doivent êtres prises afin d’eviter que le système de mise à la
terre de l’appareil ne soit désengagé.

Risque

Ne pas placer cet appareil sur un chariot, un support, un trépied ou une table instables.
L’appareil pourrait tomber et blesser quelqu’un ou subir des dommages importants.
Utiliser seulement un chariot, un support, un trépied ou une table recommandés par le
fabricant ou vendus avec le produit. Suivre les instructions du fabricant pour installer
l’appareil et utiliser les accessoires recommandés par le fabricant.
Il convient de ne pas placer sur l’appareil de sources de flammes nues, telles que
des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des éclaboussures
et qu’aucun objet rempli de liquide tel que des vases ne doit être placé sur l’appareil.
Assurez que lappareil est fourni de la propre ventilation. Ne procédez pas à
l’installation près de source de chaleur tels que radiateurs, registre de chaleur, fours
ou autres appareils (incluant les amplificateurs) qui produisent de la chaleur.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties dangereuses
au toucher et que les câblages extérieurs connectés à ces dispositifs de
connection extérieure doivent être effectivés par un opérateur formé ou en utilisant
des cordons déjà préparés.

Cordon d’Alimentation

Ne pas enlever le dispositif de sécurité sur la prise polarisée ou la prise avec tige de
mise à la masse du cordon d’alimentation. Une prise polarisée dispose de deux
lames dont une plus large que l’autre. Une prise avec tige de mise à la masse
dispose de deux lames en plus d’une troisième tige qui connecte à la masse. La
lame plus large ou la tige de mise à la masse est prévu pour votre sécurité. La prise
murale est désuète si elle n’est pas conçue pour accepter ce type de prise avec
dispositif de sécurité. Dans ce cas, contactez un électricien pour faire remplacer la
prise murale. Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.
Débranchez cet appareil durant les orages ou si inutilisé pendant de longues périodes.

Service

Consultez un technicien qualifié pour l’entretien de votre appareil.
safety-4v5.eps • April 3/2007

1

2

4

3

6

5

8

7

+VCC2

D11
1N4002
C41
47U

CN1
C24

R30

-15V

1K

R17

2

PTC/100R

R31
1K

C14
10uF

3

TR4

47K

2N5551

IC5A
TL072

D6
1N4148

7

R22
1K

C39
1N

D4
1N4148

6

R34

R28

TL072 5

10K

68K

C45
220U/25V

R32
10K

D28
1N4002

472

8.2K

4.7K

R29
100K

C26
22P

TR16
NJE15033
C51

R60

R24

R25
12K
-15V

R26
2.7K

C15
10uF

D20
1N4002

100P

C31
33P

R33
1K

R61
47

MJE350

C37

1

TR14
MJE340

R64
R56
8.2K

C43
472/400V

47K

R65

C38

+VCC1

2.2K

220P/500V

D23
6A2

TR9
R43

IC5B

1.5K

TR10
MJE340

2SC5200
D15
1N4002

C33
10/50V

R38
560

R46

R45

12K

4.7

R44
470

R52

P3

VR1
470

C

R53
0.2/5W

D16
1N4002

R1

IC2A
6

33K

33K

JUMPER

13

6

2

5

JUMPER

J3 10

C9
10U

JUMPER

11

JUMPER

9

ST-BY

J6
J2

15

D1
1N4148

8

R15
33K

4

MUTE

1

R16
22K

D7
1N4148
C35
100P

C8
22U

J4

JUMPER

2.7R/0.5W

JUMPER

J9

C17
100N

R41
820

HORN

P2

D21
1N4002

J5

R40
68

D25
1N4002

C40
47U

HI OUT

R13
22K

P1

LOW OUT
C

2

881H-1CC-C24V

2SC1943

C42
100N

D12
1N4148

-15V

D24
6A2

R62

TR15
MJE350

8.2K

C54
D29
1N4002

472
TR17

47

MJE15032
C50
470P

R69
47K

TR19
R70
1K

JUMPER

C18
10U

RL1A

+

3
7

-VCC1

R59
12K

R68
8.2K/2W

1

4
6

TR13

R63

TR2
MJE340

TR1
2N5401

R19

14

3

1K

B

7

R8
680 J1

12

R4
10K

IC1
TDA7294

R36
4.7K

10R

D13
6A2

2.2K

C44
472/400V

C48
220U/25V

R11
22K

C13
1U
R12

+VCC1

J7 0R

C4
15P

R35
12K

R58
8.2K

470

RL1B
RL1C
881H-1CC-C24V
5
8

R71

220P/500V
7.5V/1W
D27

C27
100U

C7
22U
R9
10K

C19
105

R55

MJE15033

C36
C32
104

+15V

R51

TR11

R39
68K

R10
15K

R54
0.2/5W

D10
6A2

D19
1N4002

TR3
NJE350

R23
470

R7
D3
1N4148

R50
4.7

12K

R3

2

TL071 3

10K

D18
1N4002

R42

10K

P4

10R
D14
1N4002
D17
1N4002

C2
22P

WOOFER

TR12

NJE15032

TR5
MJE802

D5
1N4148

D2
1N4148 R2

D

TR18
TIP36C

D22
1N4002

TR6

R72
390

R66
1K

C49
470P

R57
12K

R67
8.2K/2W

R27
68

R18

4N7

+15V
t

R37
820

7.5V/1W
D26

12
11
10
9
8
7
6
5
4
3
2
1

D

C55
104

TIP35C
R73
390
C56
104

D9
1N4002

B

-VCC2

R14
10K
J8
JUMPER

C21
100U

-VCC1
C20
105

+15V

R81
10K

R82
150K

47K

GND

2

+15V

R5
220R

3

C6
C46
4700uF/50V 104

C5
10U

R6
2.7K

C11
10U

C10
10U

4
5

C60
103

D31
KBPC2506

D30
KBU806

C53
C47
4700uF/80V 4700uF/50V

C28
104

C30
10U

R20
2.7K

C29
10U

C23
10U

2
-VCC1

Vin

C25
104

C12
104

C22
104

IC5C
TL072

IC2C
TL071

R21
220R
Vout

C34
104

3

TR25
BC550

R75
47K

C3
104
7

C52
4700uF/80V

2

4

5

Vout

8

4

Vin

4

A

3

1

3

1

+VCC1

C57
103

R80
10K

TR8
C32725
R79
10K

C61
1U/50V

IC3
LM317

GND

1
2

+VCC2

1

CN2

D32
1N4002

R49
10K
C59
220U/50V

R83
10K

R84

D33
1N4002

TR23
BC560

TR24
BC550

R77
330
R76
33K

R78
10K

TR21
BC560

D8
1N4148
R47
150

-15V

R48
10K

TR7
BC560

TR20
BC550
C58
1000U/6.3V

A

R74
4.7K

TR22
BC560

C1
104
-15V

Title:

IC4
LM337

Size:
A4
Date:
File:

-VCC2

1

2

3

4

5

6

7

P-200AMP
Model No:
NX25P
17-Mar-2007
YX15P AMP.Sch

Revision:
VER061206
Sheet
1
of
1
Drawn By: DECHUN QIN
8

Schematic-NX25P-200AMP-00-V061206.pdf

2

1

4

3

2

R10
D

1

1.2K

R5
1.2K

3

D

S3
OUT

2

15V

1

C2
22pF

R3

3

15V

S1
MIC IN

CN1
D2
15V

C

D1
15V

D3
15V

2.54 9P

DL2
R9
POWER
CN2

2.54 4P
-15V

2.7K
C

TR1
BC550C

1
2
3
4

DL1

C4
0.1uF/400V

D4
15V

1
2
3
4
5
6
7
8
9

To CN2 P-200FATONE-BOARD-CIR

R4

R7
1K

R12
10K

1 GRN
3 RED

2

R8
2.7K

SIGNAL/COMP
TR2
BC559C

R13
10K

6
5
4
S2B

330R

B

C3
22pF

R3

3
1

C5
1uF/50V

R4

2

B

330R

S2A
LINE IN

R11
10K

R6
10R 1/2W

0.01uF/400V
C1

D6
15V

D5
15V

D8
15V

D7
15V

S4

S

P-250
A

Titel

SW SPDT

Size
A4
Date:
File:
1

2

3

A

200FAPRE
Model No:

Revision

NX25P
17-Mar-2007

200FAPRE.Sch

Sheet
1
Drawn By:

of

VER061113
1

4

Schematic-NX25P-200FAPRE-00-V061113.pdf

1

4

3

2

P-200FATONE (1/1)

R25 330R
VR5
C10K

R26 15K

D

D
TR1
BC559C

C6
R27

12
R28
1K

R13

14
IC2D
TL074CN

C21
22pF

4.7K
C10
0.33uF

CN2

2

4

3

2 R3 1
1.5K

R1
330R

R20 4.7K
C20 22pF
R22

6
5

15K
R23 15K

9

IC2C
TL074CN

R29 15K

2.54 9P

R24
15K

R21

8

10
C11
22pF

7
IC2B
TL074CN

4.7K
C2

4.7K
R19
1.5K
R14

6
5

B5K
R4
4.7K

R18

1
C17
10uF/50V NP

IC1A
TL072

2

R17

3

4.7K
R16

C

22pF

2

R7

7
IC1B
C3
TL072 10uF/50V NP

2.7K

VR3
B10K

R8
C9
10K 0.018uF/50V

1

3

12
11
10
9
8
7
6
5
4
3
2
1

R2
330R

IC2A
TL074CN

R9

C5

2.7K

+15V
-15V

CN1
2.54 9P

R30
10K

0.0068uF/50V

10K
B

C8

C7
0.0056uF/50V

22pF

22K
22K

4.7K

VR4
B10K

R15
VR1

C16 22pF

R11

R10

To CN2 P-200FRC PCB

1
2
3
4
5
6
7
8
9

DL1
1

VTL5C4

C19 22pF

C1
10uF/50V NP

From INPUT JACK PCB CN1 P-200FAPRE PCB

2.2K

C

22pF

13

R12
12K
R5

4.7K

10K

VR2
B10K
C4

B
R6
10K

0.047uF/50V

-15V

C22
0.1uF/50V

8

C18
0.1uF/50V

IC1C
TL072
4

C15
C12
10uF/50V 0.1uF/50V

IC2E
TL074
11

C14
C13
10uF/50V 0.1uF/50V

4

+15V

Titel

A

Size
A4
Date:
File:
1

2

3

A

P-200FATONE
Model No:

Revision
VER061203

NX25P

23-Mar-2007 Sheet
1
P-200FATONE-OLD.Sch Drawn By:

of

1
DECHUN QIN

4

Schematic-NX25P-200FATONE-BOARD-CIR-00-V061203.pdf

1

10K

6

2

6

9
10

7

+15V
-15V

IC2B
TL074CN
R10
18K

C7
0.47U/63V

5
C9
C8 0.47U/63V
0.47U/63V

IC2C
8

2
R34

360

C31
0.0047U/100V 3%

R22
15K C25

C21

C22
0.1U/50V

0.0022U/100V 3%

C2
0.1U/50V

C6
22P
D3
IC1A
1

1N4148
C

TL072CN
C19
22P
R17
47K

10K
R18

-15V

2

150K

7

IC3A

D5
1N4148

1

3
TL072CN

14

12

TL074CN

9

NC

IC4C
8
TL074CN

R31
15K

R33
10K

C17
0.047U/100V 3%

6

R19

R15

R16

10

4.7K

2.7K

C14
0.015U/100V 3%

5

NX25P
CHANGES FOR AUGUST 2005
C3 CHANGED TO 330N
R5 CHANGED TO 3K
R9 CHANGED TO 3K

3

IC3B
7

+15V

TL072CN

B

C15
0.01U/100V 3%

CHANGES FOR 2003
C13 CHANGED TO 4N7
C28 CANCELED & SHORTED
C32 CHANGED TO 47N
C34 CHANGED TO 47N
R12 CHANGED TO 22K
R13 CANCELED
R34 CHANGED TO 360R
R41 CHANGED TO 4K7
R43 CHANGED TO 5K1
R23 CANCELED
R44 CANCELED

C18
0.1U/50V

IC3C
TL072CN

C23
0.1U/50V

IC5C
TL072CN

C16
0.1U/50V

C24
0.1U/50V

-15V

Titel
Size
A4
Date:
File:

2

2
3

R14

-15V
1

10K

C26
22P

NC

IC4D

10
0.0047U/100V 3%

R3

D1
1N4148

R44

13

4

11

11

R37
10K

R23

IC1C
TL072CN

R2
22K

IC4B

5

TL074CN

8

4

4

IC4E
TL074CN

C4
0.1U/50V

3

D2
1N4148

R4
10K

18K
6

C10
0.1U/50V

C27
0.1U/50V

R24

7

TL074CN

C33
0.047U/100V 3%

R32
180

A

1

R35
NC

10K

+15V

IC2E
TL074CN

C32
0.047U/100V 3%

IC4A

R7
18K

R40

C5
0.1U/50V

R42
10K

R41
4K7

+15V

TL072CN

+15V

C34
0.047U/100V 3%

5K1
TL074CN

IC1B

5

10U/50V NP

R43

-15V
6

R8
5.6K

R45

C3
0.33uF/63V

From CN1 P-200FATONE-BOARD-CIR

B

R9
3K

22K
TL074CN

To CN1 P-200AMP PCB

0.0068U/100V 3% C11
0.0068U/100V 3%
TL074CN

TL072CN

R5
3K

R6

14

12

1

10K

CN2
1
2
3
4
5
6
7
8

IC2D

C20

R30
10K

R12
22K

C28
NC

13

CN1
1
2
3
4
5
6
7
8
9
10
11
12

8

IC5A

3

10K
D4
1N4148

C

3

C12

R11
2.7K

4

1

IC2A

2

C13
0.0047U/100V 3%

TR3
BC559C

JUMPER

R38

R13
NC

8

TR1
BC559C

-15V

NU

R39
300K
TR2
BC559C

D

R36

4

IC5B
TL072CN

R27
330

18K

C30
10P

2.7K

5

10K

R21

R1

7

10K

10U/50V

R28

R25

4

+15V

C1

R29

R26 10K

R20

C29
0.1U/50V

10K
D

3

2

A

P-200FRC
Model No:
NX25P
23-Mar-2007

NX25P-200FRC.SCH

Revision
Sheet
1
Drawn By:

of

VER011208
1

4

Schematic-NX25P-200FRC-BOARD-CIR-00-V011208.pdf

1

2

4

3

6

5

8

7

+VCC2

D11
1N4002
C41
47U

CN1
C24

R30

-15V

1K

R17

2

R31
1K

C14
10uF

3

TR4

47K

2N5551

IC5A
TL072

R29
100K

C26
22P
R32
10K

D6
1N4148

7

R22
1K

D28
1N4002

C51
472

8.2K

4.7K

C39
1N

D4
1N4148

6

R34

R28

TL072 5

10K

68K

C45
220U/25V

C15
10uF

TR16
NJE15033

R60

R24

R25
12K
-15V

R26
2.7K

D20
1N4002

100P

C31
33P

R33
1K

R61
47

MJE350

C37

1

TR14
MJE340

R64
R56
8.2K

C43
472/400V

47K

R65

C38

+VCC1

2.2K

220P/500V

D23
6A2

TR9
R43

IC5B

1.5K

TR10
MJE340

2SC5200
D15
1N4002

C33
10/50V

R38
560

R46

R45

12K

4.7

R44
470

R52

P3

VR1
470

C

R53
0.2/5W

D16
1N4002

R1

IC2A
6

33K

33K

C36
C32
104

+15V

C13
1U
R12

JUMPER

13

IC1
TDA7294
6

2

5

JUMPER

J3 10

C9
10U

JUMPER

J2
JUMPER

4

MUTE

11

9

ST-BY

J6

8

D1
1N4148

1

R15
33K

15

R16
22K

D7
1N4148
C35
100P

C8
22U

J4

JUMPER

2.7R/0.5W

JUMPER

J9

C17
100N

R41
820

HORN

P2

D21
1N4002

J5

R40
68

R55

470

10R

TR11

TR13

D25
1N4002

C18
10U

C40
47U

R13
22K

P1

1

RL1A

4
6
3
7

+

LOW OUT
C

2

881H-1CC-C24V

C42
100N

D12
1N4148

-15V

R71
-VCC1

D24
6A2

R62

TR15
MJE350

8.2K

C54
D29
1N4002

472
TR17

47

MJE15032
C50
470P

R69
47K

R59
12K

TR19
R70
1K

JUMPER

HI OUT

D13
6A2

2SC1943

R63

R68
8.2K/2W

RL1B
RL1C
881H-1CC-C24V
5
8

2.2K

C44
472/400V

TR2
MJE340

TR1
2N5401

R19

14

3

1K

B

7

R8
680 J1

12

R4
10K

R58
8.2K
C48
220U/25V

R11
22K

+VCC1

J7 0R

C4
15P

R35
12K

R36
4.7K

220P/500V
7.5V/1W
D27

C7
22U
R9
10K

C19
105

C27
100U

R51

MJE15033

R39
68K

R10
15K

R54
0.2/5W

D10
6A2

D19
1N4002

TR3
NJE350

R23
470

R7
D3
1N4148

R50
4.7

12K

R3

2

TL071 3

10K

D18
1N4002

R42

10K

P4

10R
D14
1N4002
D17
1N4002

C2
22P

WOOFER

TR12

NJE15032

TR5
MJE802

D5
1N4148

D2
1N4148 R2

D

TR18
TIP36C

D22
1N4002

TR6

R72
390

R66
1K

C49
470P

R57
12K

R67
8.2K/2W

R27
68

R18

4N7

+15V
t

PTC/100R

R37
820

7.5V/1W
D26

12
11
10
9
8
7
6
5
4
3
2
1

D

C55
104

TIP35C
R73
390
C56
104

D9
1N4002

B

-VCC2

R14
10K
J8
JUMPER

C21
100U

-VCC1
C20
105

+15V

R81
10K

R82
150K

47K

GND

2

+15V

R5
220R

3

C6
C46
4700uF/50V 104

C5
10U

R6
2.7K

C11
10U

C10
10U

C12
104

4
5

C60
103

D31
KBPC2506

D30
KBU806

C53
C47
4700uF/80V 4700uF/50V

C28
104

C30
10U

R20
2.7K

C29
10U

C23
10U

2
-VCC1

Vin

C22
104

IC5C
TL072

IC2C
TL071

R21
220R
Vout

C34
104

3

TR25
BC550

R75
47K

C3
104
7

C52
4700uF/80V

2

C25
104

4

5

Vout

8

4

Vin

4

A

3

1

3

1

+VCC1

C57
103

R80
10K

TR8
C32725
R79
10K

C61
1U/50V

IC3
LM317

GND

1
2

+VCC2

1

CN2

D32
1N4002

R49
10K
C59
220U/50V

R83
10K

R84

D33
1N4002

TR23
BC560

TR24
BC550

R77
330
R76
33K

R78
10K

TR21
BC560

D8
1N4148
R47
150

-15V

R48
10K

TR7
BC560

TR20
BC550
C58
1000U/6.3V

A

R74
4.7K

TR22
BC560

C1
104
-15V

Titel:

IC4
LM337

Size:
A4

-VCC2

Date:
File:
1

2

3

4

5

6

7

P-200AMP
Model No:

Revision:
NX25P
VER061206
17-Mar-2007 Sheet
1
of
1
Drawn By: DECHUN QIN
8

Schematic-NX25P-200AMP-RoHS-00-V061206.pdf

2

1

4

3

2

R10
D

1

1.2K

R5
1.2K

3

D

S3
OUT

2

15V

1

C2
22pF

R3

3

15V

S1
MIC IN

CN1
D2
15V

C

D1
15V

D3
15V

2.54 9P

DL2
R9
POWER
CN2

2.54 4P
-15V

2.7K
C

TR1
BC550C

1
2
3
4

DL1

C4
0.1uF/400V

D4
15V

1
2
3
4
5
6
7
8
9

To CN2 P-200FATONE-BOARD-CIR

R4

R7
1K

R12
10K

1 GRN
3 RED

2

R8
2.7K

SIGNAL/COMP
TR2
BC559C

R13
10K

6
5
4
S2B

330R

B

C3
22pF

R3

3
1

C5
1uF/50V

R4

2

B

330R

S2A
LINE IN

R11
10K

R6
10R 1/2W

0.01uF/400V
C1

D6
15V

D5
15V

D8
15V

D7
15V

S4

S

P-250
A

Titel

SW SPDT

1

2

3

A

200FAPRE

Size

Model No:

A4
Date:
File:

NX25P
Sheet
17-Mar-2007
1
200FAPRE.Sch
Drawn By:

Revision
of

VER061113
1

4

Schematic-NX25P-200FAPRE-RoHS-00-V061113.pdf

2

1

4

3

P-200FATONE (1/1)
+15V

C21
22pF

R107
C10
0.33uF

6.8K

C19 22pF

CN2
1
2
3
4
5
6
7
8
9

4

R111
249R
-15V

+15V
R112

BC559C
Q100

5

9
IC2C
TL074CN

R29 15K

2.54 9P

R24
15K

R21

8

10
C11
22pF

12

15

U100B
LM13600

7
IC2B
TL074CN

13

R114
15K
R115
249R

TR1
BC559C

+15V
R116
249R

R113
10K

C2

4.7K

+15V

C8

4.7K

5
R4
4.7K

R18

R8
C9
10K 0.018uF/50V

6

R7

7
IC1B
C3
TL072 10uF/50V NP

2.7K

VR3
B10K

2

R17

3

4.7K
R16

12
11
10
9
8
7
6
5
4
3
2
1

R2

1

3

330R
IC2A
TL074CN

+15V
-15V

R9

C5

2.7K

CN1
2.54 9P

R30
10K

0.0068uF/50V

10K

C

22pF

C7
0.0056uF/50V

22pF

22K

B5K

C16 22pF

IC1A
TL072

R1
330R

R100
22K

R11
VR4
B10K

R15

22K

C17
10uF/50V NP

+15V

R102
56K

2
R19
1.5K
R14

1

R101
3.9K

R109
10K

R10
4.7K

VR1

B

Q101
BC550

6

15K
R23 15K

D

47uF/50V

R103
1K

249R

R20 4.7K
C20 22pF
R22

-15V

14

6.8K

4.7K

C1
10uF/50V NP

From INPUT JACK PCB CN1 P-200FAPRE PCB

R28
1K

IC2D
TL074CN

15K

R106

R13

14

12

U100A
LM13600

R110

2

22pF

13

2.2K

5

47K
C100

To CN2 P-200FRC PCB

R27

6.8K

16

C6

R105

1

VR5
C10K

R26 15K

D

C

6.8K

R108

3

6

R25 330R

11

R104

R12
12K
R5

4.7K

10K

VR2
B10K
C4

B
R6
U100C
LM13600

10K

9

8
10

7

0.047uF/50V

A

-15V

C22
0.1uF/50V

8

C18
0.1uF/50V

IC1C
TL072
4

C15
C12
10uF/50V 0.1uF/50V

IC2E
TL074
11

C14
C13
10uF/50V 0.1uF/50V

4

+15V

Titel
Size
A4
Date:
File:
1

2

3

A

P-200FATONE
Model No:

Revision

NX25P

17-Mar-2007
P-200FATONE.Sch

Sheet
1
Drawn By:

of

VER061203
1
DECHUN QIN

4

Schematic-NX25P-200FATONE-BOARD-CIR-RoHS-00-V061203.pdf

1

2

0.0068U/100V 3% C11
TL074CN
0.0068U/100V 3%

9
10

7

+15V
-15V

IC2B
TL074CN
R10
18K

C7
0.47U/63V

5
C9
C8 0.47U/63V
0.47U/63V

C3
0.33uF/63V

From CN1 P-200FATONE-BOARD-CIR

B

6

IC2C
8

10U/50V NP

2

5K1
TL074CN

R34

360

C32
0.047U/100V 3%

IC4A

1

R24

13

14
TL074CN

R23

IC1C
TL072CN

R22
15K C25

C21

9

NC

IC4C
8

10
0.0022U/100V 3%

0.0047U/100V 3%
C2
0.1U/50V

D5
1N4148

1

3
TL072CN

R33
10K

C17
0.047U/100V 3%

TL074CN
R31
15K

6

R15

R16

4.7K

5

C14
0.015U/100V 3%

3

7

+15V
B

C15
0.01U/100V 3%

CHANGES FOR 2003
C13 CHANGED TO 4N7
C28 CANCELED & SHORTED
C32 CHANGED TO 47N
C34 CHANGED TO 47N
R12 CHANGED TO 22K
R13 CANCELED
R34 CHANGED TO 360R
R41 CHANGED TO 4K7
R43 CHANGED TO 5K1
R23 CANCELED
R44 CANCELED
NX25P
CHANGES FOR AUGUST 2005
C3 CHANGED TO 330N
R5 CHANGED TO 3K
R9 CHANGED TO 3K

IC3B
TL072CN

2.7K

C18
0.1U/50V

IC3C
TL072CN

C23
0.1U/50V

IC5C
TL072CN

C16
0.1U/50V

C24
0.1U/50V

-15V

Titel
Size
A4
Date:
File:

2

IC3A

2

150K

7

-15V
1

R18

-15V

NC

IC4D

12

8

11

11

C22
0.1U/50V

C4
0.1U/50V

C31
0.0047U/100V 3%

4

IC4E
TL074CN

IC2E
TL074CN

R17
47K

10K

R44

C10
0.1U/50V

C27
0.1U/50V

4

4

C5
0.1U/50V

C

C19
22P
R14

10

R37
10K

C33
0.047U/100V 3%

R32
180

3

1N4148

TL072CN

C26
22P

R19

R40

D3
IC1A
1

2

10K

C6
22P

TL074CN
R35
NC

10K

R3

D1
1N4148

IC4B

5

TL074CN

D2
1N4148

R4
10K

R2
22K

18K
6

3

R7
18K

+15V

A

R42
10K

R41
4K7

7

TL072CN

+15V

C34
0.047U/100V 3%

+15V

5

C20

R43

-15V
IC1B

6

R8
5.6K

10K

R9
3K

22K
TL074CN

R45

R5
3K

R6

14

12

1

TL072CN

D4
1N4148

CN2
1
2
3
4
5
6
7
8

IC2D

To CN1 P-200AMP PCB

C28
NC

R30
10K

R12
22K

13

8

IC5A

3

10K

C

3

C12

CN1
1
2
3
4
5
6
7
8
9
10
11
12

4

1

IC2A

2

C13
0.0047U/100V 3%

TR3
BC559C

JUMPER

R38

R13
NC

R11
2.7K

8

TR1
BC559C

-15V

NU

R39
300K
TR2
BC559C

D

R36

4

IC5B
TL072CN

R27
330

18K

C30
10P

2.7K

5

10K

R21

R1

D

10K

6

7

10K

10U/50V

10K
R28

R25

+15V

C1

R29

R26 10K

R20

C29
0.1U/50V

4

3

2

A

P-200FRC
Model No:
NX25P
23-Mar-2007

NX25P-200FRC.SCH

Revision
Sheet
1
Drawn By:

of

VER011208
1

4

Schematic-NX25P-200FRC-BOARD-CIR-RoHS-00-V011208.pdf

220R
1N

T-

T+

PRODUCTION NOTES
1. Tack on #4977 220R and
#5422 1N 50V bead cap to
J1, J3 jumpers of IC1 TDA7294
220R 1N
J3
J1
pin 3
pin 2
of
of
TDA7294
TDA7294
2. Heatshrink the 220R and 1N
together and RTV into place



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