Yorkville CA-12 Service manual

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

Manual-Service-CA12-00-3v0.pdf

WORLD HEADQUARTERS

CANADA

SERVICE MANUAL

MODEL TYPE: YS1048

CA12

U.S.A.

Yorkville Sound

550 Granite Court
Pickering, Ontario

L1W-3Y8 CANADA

Voice: [phone]

Fax: [phone]

Quality and Innovation Since 1963

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

Voice: [phone]

Fax: [phone]

Printed in Canada

IMPORTANT SAFETY INSTRUCTIONS

INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,

OR INJURY TO PERSONS

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.

Read Instructions

The Owner’s Manualshould be read and understood
before operation of your unit. Please, save these instruc­tions for future reference.

Packaging

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

Warning

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

Power Sources

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.

No naked flame sources, such as lighted candles, should be
placed on the apparatus.

Power Cord

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.

Service

The unit should be serviced only by qualified service personnel.

INSTRUCTIONS RELATIVES AU RISQUE

DE FEU, CHOC ÉLECTRIQUE, OU

BLESSURES AUX PERSONNES

AVIS:

AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,

N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)

NE CONTIENT AUCUNE PIECE

REPARABLE PAR L’UTILISATEUR.

CONSULTEZ UN TECHNICIEN QUALIFIE

POUR L’ENTRETIENT

Veuillez Lire le Manuel

Il contient des informations qui devraient êtres comprises
avant l’opération de votre appareil. Conservez S.V.P. ces
instructions pour consultations ultérieures.

Emballage

Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.

Attention:

Lors de l’utilisation de produits électrique, assurez­vous 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.

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

Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.

Service

Consultez un technicien qualifié pour l’entretien de votre appareil.

safety-4v3.eps • Oct. 26/05

MODEL TYPE: YS1048

CH. INPUT

SOURCE SELECTION

REMOTE VOLUME JACK

AVC CONTROL

SSM2164

AUTO POWER ON/OFF

2

VOLUME

CONTROL

3

3

1

2

1

LIMITER CONTROL

NJM2761

LIMITER SW. BRIDGE SW.

POWER AMPLIFIER

TDA8920BTH

+12V

POWER SW.

OUTPUT

SELECTION SW.

ZONE 6

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

Block Diagram for CA12

CH. INPUT

SOURCE SELECTION

CH. INPUT

SOURCE SELECTION

REMOTE VOLUME JACK

AVC CONTROL

SSM2164

AUTO POWER ON/OFF

REMOTE VOLUME JACK

AVC CONTROL

SSM2164

2

VOLUME

CONTROL

2

VOLUME

3

1

2

1 3

LIMITER CONTROL

NJM2761

3

1 3

2

1

LIMITER CONTROL

NJM2761

LIMITER SW. BRIDGE SW.

POWER AMPLIFIER

TDA8920BTH

+12V

POWER SW.

LIMITER SW. BRIDGE SW.

POWER AMPLIFIER

TDA8920BTH

OUTPUT

SELECTION SW.

ZONE 5

OUTPUT

SELECTION SW.

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

CH. INPUT

SOURCE SELECTION

CH. INPUT

SOURCE SELECTION

AUTO POWER ON/OFF

REMOTE VOLUME JACK

AVC CONTROL

SSM2164

AUTO POWER ON/OFF

REMOTE VOLUME JACK

AVC CONTROL

SSM2164

CONTROL

2

VOLUME

CONTROL

2

1 3

2

1 3

LIMITER CONTROL

3

1

2

1 3

VOLUME

LIMITER CONTROL

+12V

POWER SW.

LIMITER SW. BRIDGE SW.

NJM2761

+12V

POWER SW.

LIMITER SW. BRIDGE SW.

NJM2761

POWER AMPLIFIER

TDA8920BTH

POWER AMPLIFIER

TDA8920BTH

ZONE 4

OUTPUT

SELECTION SW.

ZONE 3

OUTPUT

SELECTION SW.

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

BUS INPUT/OUTPUT

CH. INPUT

SOURCE SELECTION

AUTO POWER ON/OFF

REMOTE VOLUME JACK

AVC CONTROL

SSM2164

AUTO POWER ON/OFF

CONTROL

2

VOLUME

CONTROL

3

3

1

2

1

LIMITER CONTROL

NJM2761

+12V

POWER SW.

LIMITER SW. BRIDGE SW.

POWER AMPLIFIER

TDA8920BTH

+12V

POWER SW.

ZONE 2

OUTPUT

SELECTION SW.

ZONE 1

OUTPUT

TRANSFORMER

OUTPUT

TRANSFORMER

4321

TO BUS LINE BOARD CNA01

D

INPUT

LINE-1

C

B

A

CNB01

BUS-L

5

BUS-R

4
3
2
1

CON5

JK101A

L-IN.1

JK101B

R-IN.1

FC102

N.C

+5V

2

1 3

VR101

B50K

1
9
8
7
3
2
4
5
6

JK103

REMOTE VOLUME

2

1 3

VR102

B50K

+15V

-15V

R101

1.5K

C101

4u7/50V

FC101

N.C

C102

4u7/50V

R102

1.5K

VCL-1

VCR-1

1 2 3 4

R103

56K

R105

10K

R104

56K

R106

10K

IC101A

3

2

R107 4.7K

C103

IC101B

5

6

R108

C104

30K

R133

30K

C115

560P

R134

R136

499

C116

560P

4558

4558

4.7K

56P

R135

499

56P

2

3

7

6

C105

10u/25V

1

C106

10u/25V

7

IC105A

SSM2164

C117

1uF/50V

IC105B

SSM2164

C118

1uF/50V

R109

47K

47K

R110

C119

4

R137

2

3

C120

5

R138

6

5

1

3

4

6

100P

30K

IC103A

TL072

100P

30K

IC103B

TL072

BUS-L

BUS-R

SW101A

SW101B

1

7

IC101C

4558

100K

R111

2

5

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100K

R112

84

C109

4u7/50V

R126

0.022uF/50V

100K

R113

IC105E

SSM2164

7.5K

C127

IC102A

4558

3

2

220K

R115

2.2K

C111

56P

R114

1

C121

C122

0.1uF

0.1uF

+15V -15V

C123

0.22uF/50V

C128

0.22uF/50V

C107

100uF/25V

C108

100uF/25V

V-9GND8V+16Mode

+15V

C110

10u/25V

1

D101

C125

84

1N4148

0.22uF / 50V

1

2

3

4

5

IC102C

4558

R142 47K

D102

1N4148

VCC

OutA

IN-A

INT

VREF

IC104

R139

R123 47K

C113

100u/25V

ZD101

N.C

84

R116

4.7K

Q103

2N4401

GND

OutB

IN-B

SW

Sense

NJM2761

5.1K

IC103C

TL072

D104

D103

1N4148

R122

Q101

2N4401

4.7K

Q102

2N4403

R117

100

C112

100uF/25V

1N4148

R121

220

6

5

R118

IC102B

4558

D105

220K

1N4148

R120

15K

+15V

0.1uF

D111

1N4148

R141

10

C129

22uF/25V

+15V

D109

1N414 8

CLOCK

C130

10

9

8

7

6

SW102A

OFF

2

ON

C126

0.22uF / 50V

R140

1

3

1K

+5V

LIMITER SW

C124

0.22uF/50V

+15V

Title

MAIN BOARD 1OF 7

Number RevisionSize

A4

-15V

Date: 15-Feb-2006 Sheet of
File: D:\OTHER MODEL\MP1200\AMP1270.ddbDrawn By:

127S01.SCH

7

10K

R119

-15V

+15V

reset

+15V

D106

1N4148

RESET

D107

1N4148

R124

22K

15K

R125

D108

1N4148

CON10

Clock

CLIP.1

POWER.1
L-CH.1

R-CH.1

CNA102

TO ZONE 1 AMPLIFIER
BOARD CNA702

POW-1
CLIP-1
VCL-1
VCR-1
POW-2
CLIP-2
VCL-2
VCR-2
POW-3
CLIP-3
VCL-3
VCR-3

TO VOLUME CONTROL

CNA104

CON7

BOARD-A CNB103

1 7

LHH

BUS PW

MUTE

1

Clock

2

+15V

3

-15V

4

CLIP

5

VCA-L

6

VCA-R

7

POWER

8

LCH-O

9

GND

10

RCH-O

POW-1

1

CLIP-1

2
3

VCL-1
VCR-1

4

POW-2

5

CLIP-2

6

VCL-2

7

VCR-2

8
9

POW-3
CLIP-3

10

VCL-3

11

VCR-3

12

D

C

B

A

4321

BUS-LBUS-R

D

2

5

IC201C

4558

100K

R211

INPUT

LINE-1

C

B

A

JK201A

L-IN.2

JK201B

R-IN.2

FC202

N.C

+5V

2

1 3

VR201

B50K

1
9
8
7
3
2
4
5
6

JK203

REMOTE VOLUME

2

1 3

VR202

B50K

R201

1.5K

C201

4u7/50V

FC201

N.C

C202

4u7/50V

R202

1.5K

VCL-2

VCR-2

1 2 3 4

R203

56K

R205

10K

R204

56K

R206

10K

IC201A

3

2

R207 4.7K

C203

IC201B

5

6

R208

C204

30K

R233

30K

C215

560P

R234

R236

499

C216

560P

4558

4558

4.7K

56P

10

R235

499

11

15

14

56P

C205

10u/25V

1

C206

10u/25V

7

IC105C

SSM2164

C217

1uF/50V

IC105D

SSM2164

C218

1uF/50V

1

3

4

6

100P

30K

IC203A

TL072

100P

30K

IC203B

TL072

SW201A

SW201B

1

7

R209

47K

47K

R210

C219

12

R237

2

3

C220

13

R238

6

5

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100K

R212

84

C209

4u7/50V

3

100K

2

R213

2.2K

R214

C227

0.022uF/50V

IC202A

4558

R215

C211

C223

0.22uF/50V

C228

0.22uF/50V

C207

100uF/25V

C208

100uF/25V

220K

56P

C210

10u/25V

1

D201

C225

0.22uF / 50V

84

1N4148

1

2

3

4

5

IC202C

4558

R242 47K

D202

1N4148

VCC

OutA

IN-A

INT

VREF

IC204

R239

Q203

2N4401

ZD201

12V

NJM2761

84

R216

4.7K

GND

OutB

IN-B

SW

Sense

9.1K

+15V

IC203C

TL072

-15V

D204

1N4148

R218

IC202B

4558

D205

+15V

220K

R219

10K

CLOCK

1N4148

-15V

+15V

7

Q201

2N4401

D211

1N4148

R217

100

C212

100uF/25V

R221

220

R220

15K

6

5

1N4148

D209

R241

68

+15V

C229

0.1uF
22uF/25V

0.22uF / 50V

C230

10

9

8

7

6

SW202A

OFF

2

ON

C226

R240

1

3

1K

+5V

LIMITER SW

C224

0.22uF/50V

Title

MAIN BOARD 2OF 7

Number RevisionSize

A4

Date: 15-Feb-2006 Sheet of
File: D:\OTHER MODEL\MP1200\AMP1270.ddbDrawn By:

1270S02.SCH

+15V

D206

1N4148

reset

22K

R225

R224

15K

D208

1N4148

Clock

CLIP.2

POWER.2
L-CH.2

R-CH.2

RESET

D207

1N4148

TO ZONE 2 AMPLIFIER
BOARD CNA702

POW-2
CLIP-2

2 7

LHH

BUS PW

MUTE

CON10

CNA202

1
2
3
4
5
6
7
8
9
10

Clock
+15V

-15V
CLIP
VCA-L
VCA-R
POWER
LCH-O
GND
RCH-O

D

C

B

A

4321

BUS-LBUS-R

D

2

5

IC301C

4558

100K

R311

INPUT

LINE-1

C

B

A

JK301A

L-IN.3

JK301B

R-IN.3

FC302

N.C

+5V

2

1 3

VR301

B50K

1
9
8
7
3
2
4
5
6

JK303

REMOTE VOLUME

2

1 3

VR302

B50K

R301

1.5K

C301

4u7/50V

FC301

N.C

C302

4u7/50V

R302

1.5K

VCL-3

VCR-3

1 2 3 4

R303

56K

R305

10K

R304

56K

R306

10K

IC301A

3

2

R307 4.7K

C303

IC301B

5

6

R308

C304

30K

R333

30K

C315

560P

R334

R336

499

C316

560P

4558

4558

4.7K

56P

R335

499

56P

2

3

7

6

C305

10u/25V

1

C306

10u/25V

7

IC106A

SSM2164

C317

1uF/50V

IC106B

SSM2164

C318

1uF/50V

1

3

4

6

100P

30K

IC303A

TL072

100P

30K

IC303B

TL072

SW301A

SW301B

1

7

R309

47K

47K

R310

C319

4

R337

2

3

C320

5

R338

6

5

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100K

R312

84

C309

4u7/50V

R326

100K

R313

IC106E

SSM2164

7.5K

IC302A

4558

3

2

R315

2.2K

C311

R314

1

C321

0.1uF

+15V -15V

C327

0.022uF/50V

C328

0.22uF/50V

C307

100uF/25V

C308

100uF/25V

220K

56P

C322

0.1uF

C323

0.22uF

V-9GND8V+16Mode

C310

10u/25V

1

D301

C325

84

1N4148

0.22uF / 50V

1

2

3

4

5

IC302C

4558

R342 47K

D302

1N4148

VCC

OutA

IN-A

INT

VREF

IC304

R339

Q303

2N4401

ZD301

12V

NJM2761

84

R316

4.7K

GND

OutB

IN-B

SW

Sense

9.1K

+15V

IC303C

TL072

-15V

D304

1N4148

R318

IC302B

4558

D305

220K

+15V

1N4148

R319

10K

CLOCK

+15V

7

-15V

Q301

2N4401

D311

1N4148

R317

100

C312

100uF/25V

R321

220

R320

15K

6

5

1N4148

D309

R341

68

+15V

C329

0.1uF

C330

22uF/25V

10

9

8

7

6

SW302A

OFF

2

ON

0.22uF / 50V

C326

R340

1

3

1K

+5V

LIMITER SW

C324

0.22uF/50V

Title

MAIN BOARD 3OF 7

Number RevisionSize

A4

Date: 15-Feb-2006 Sheet of
File: D:\OTHER MODEL\MP1200\AMP1270.ddbDrawn By:

1270S03.SCH

+15V

D306

1N4148

R325

22K

reset

R324

15K

D308

1N4148

Clock

CLIP.3

POWER.3
L-CH.3

R-CH.3

RESET

D307

1N4148

TO ZONE 3 AMPLIFIER
BOARD CNA702

POW-3
CLIP-3

3 7

BUS PW

MUTEMUTE

CON10

CNA302

1
2
3
4
5
6
7
8
9
10

Clock
+15V

-15V
CLIP
VCA-L
VCA-R
POWER
LCH-O
GND
RCH-O

D

C

B

A