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U.S.A.

Yorkville Sound Inc.

4625 Witmer Industrial Estate

Niagara Falls, New York

14305 USA

Voice: (716) 297-2920

Fax: (716) 297-3689

WORLD HEADQUARTERS

WEB ACCESS: http://www.yorkville.com

CANADA

Yorkville Sound

550 Granite Court
Pickering, Ontario

L1W-3Y8 CANADA

Voice: (905) 837-8481

Fax: (905) 837-8746

Quality and Innovation Since 1963

Printed in Canada

SERVICE MANUAL

YBA200-2

MODEL TYPE: YS1029

Gain

Master

Treble

Mid

Range

Bass

Scoop

Resonance

Bassmaster

Standby

Power

ON

OFF

Pre-Amp

Out

Line Out

Amp In

Pre-EQ

Post-EQ

-20 dB

Pad

lift
gnd

Ground

Mute

Tuner

Inputs

Passive

Active

0 dB

-6 dB

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

0

5

10

YBA200

ALL

TUBE

Bright

Active

Bassmaster

YBA200-2

ALL

TUBE

KT88

KT88

POWER

DISCONNECT POWER WHEN

REPLACING TUBES.

USE MATCHED TUBES ONLY!

DÉBRANCHÉ L’APPAREIL AVANT

DE REMPLACER LES LAMPES.

UTILLISEZ SEULEMENT DES TUBES APPARIÉS!

PREAMP

SPLITTER

12AX7

12AX7

4-ohms

Speaker Load

Speaker Load with

ALL Speakers Connected

ATTENTION:

 Before powering unit on,

make sure speakers are connected

8-ohms

CAUTION: 

REPLACE WITH

SAME TYPE  FUSE AND RATING

ATTENTION:

 UTILISER UN FUSIBLE DE

RECHANGE DE MEME TYPE ET CALIBRE

DESIGNED & MANUFACTURED BY

YORKVILLE SOUND • Toronto, CANADA

FUSE: 

T3,0A L

FUSE: 

T6.3A L SloBlo

230V   

50Hz 1,3A

120VAC  

60Hz 2.5A

MODEL TYPE: YS1029

A-Z538R / 2v2

V7

KT88

V4

KT88

V5

V6

V1

V2

12AU7

V3

THIS UNIT MUST BE  GROUNDED!

CET APPAREIL DOIT ETRE MIS Á TERRE! 

DISCONNECT POWER

BEFORE SERVICING!

DEBRANCHER L’APPEREIL AVANT

D’ENLEVER LES COUVERCLES! 

Series 2

• 

Q

UA

LITY

 & INNO

VA

TIO

N

 •

• E

STAB

LISHED 19

63

 •

Summary of Contents for YB200-2

Page 1: ...e Bassmaster YBA200 2 ALL TUBE KT88 KT88 POWER DISCONNECT POWER WHEN REPLACING TUBES USE MATCHED TUBES ONLY DÉBRANCHÉ L APPAREIL AVANT DE REMPLACER LES LAMPES UTILLISEZ SEULEMENT DES TUBES APPARIÉS PREAMP SPLITTER 12AX7 12AX7 4 ohms Speaker Load Speaker Load with ALL Speakers Connected ATTENTION Before powering unit on make sure speakers are connected 8 ohms CAUTION REPLACE WITH SAME TYPE FUSE AND...

Page 2: ... spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 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 Instructions relatives au risque de feu choc élect...

Page 3: ...U 450V 20 CAP BLK EL 1 8801 6 32 X 3 8 PAN PH TAPTITE JS500 2 5618 470U 25V 20 CAP BLK 10X15MM EL 5 8829 6 32 X 3 8 FLAT PH TAPTITE BO C HEA 14 5879 100U 16V 20 CAP T R 8X7MM 2EL 1 8784 6 X 7 16 PAN QUAD FRAME BLACK PHOS 4 5957 470U 350V 20 CAP BLK 30X50 EL 2 8755 6 X 5 8 PAN QUAD TY A JS500 BLACK 8 4423 _20K 15AAUDIO 9MM P32 1 8811 6 X 1 1 4 FLAT HD SQ SCKT WS ZN CL 8 4424 100K 1B LIN 9MM P32 2 8...

Page 4: ...E SOUND On Off Gain Scoop Bright Tuner Output Mute Volu Bias Adjust me Preamp V2 B Power Amp 8 ohm 4 ohm POST EQ PRE EQ 20dB Pad Ground Lift Resonance Mono 1 4 Mono 1 4 MODEL TYPE YS1029 KT88 KT88 POWER DISCONNECT POWER WHEN REPLACING TUBES USE MATCHED TUBES ONLY DÉBRANCHÉ L APPAREIL AVANT DE REMPLACER LES LAMPES UTILLISEZ SEULEMENT DES TUBES APPARIÉS PREAMP SPLITTER 12AX7 12AX7 V7 KT88 V4 KT88 V5...

Page 5: ...0V 1N C5 250V 100N R61 5 0W 1K8 C46 400V 22N 3682 W12 RED B R59 5 0W 1K8 PENTODE V5 A Body Val OUTPUT PENTODE Body V4 A Val OUTPUT C19 100V 47P C45 400V 22N R37 1 8W FLMP 249R R32 1 4W 100K C18 100V 47P U1 A TL072 8 V 4 V U1 C U1 B TL072 63V C54 150N R18 1 4W 4K7 R24 1 4W 100K C14 250V 10N S T R J7 OUTPUT C20 50V 22U NET00037 R114 1 4W 10K V1 A 2X_TRIODE_HCT Body Val PreAmp S2 A 3522 DOWN UP TUNER...

Page 6: ...50V C60 10N D16 1N5262B 0W5 51V0 D15 1N5262B 0W5 51V0 D11 1N5262B 0W5 51V0 D12 1N5262B 0W5 51V0 D13 1N5262B 0W5 51V0 R94 1 4W 4K7 4007 D19 C56 100V 100N P9 4520 M Lin 10K Bias 78V S15 DPDT Switch W22 GRN GND 16AWG PENTODE V4 B Voltage C24 25V 470U C27 25V 470U PENTODE V6 B Voltage PENTODE V7 B Voltage C29 100V 100N R101 1 0W 10K0 C72 450V 10U 2X_TRIODE_HCT V2 C Voltage W20 B 2 R123 1 0W 10K0 R102 ...

Page 7: ...V 470U 25V 470U 10N 10K 2K RED 47K 10K 15A 500K 2R 2 0W 2R 2 0W 249K 10U 63V 220N 250V 22U 350V WHT 1B 100K 1B 100K Alternate WHT 22N 400V 10N 6N8 2R 2 0W 2R 2 0W 820R 150K 2 0W 22U 350V 10K0 1 0W 22U 350V 120K 220K 15A 500K Alternate WHT 15A 500K 470K 4N7 47K 15A 500K 5 0W 1K8 HER508 275V 22N 150K 2 0W Val 5 0W 1K8 160V 10U 470U 350v Val 250V 220N 25V 470U 11K Val 5 0W 1K8 10K0 1 0W 22U 350V WHT ...

Page 8: ... 1 BEND THE SUPPORT LEADS ON THE FOUR POWER TUBE SOCKETS AFTER INSERTION 2 USE SOLDER JIG FOR WAVESOLDERING 3 ENSURE R56 IS 4704 WIREWOUND 4 PCBSA DO NOT BREAK OUT BOARD BEFORE TESTING PCB 2 of 8741 Z352 2 of 3850 2 of 8701 2 of 8832 to hold z352 in place ...

Page 9: ...le insulated wire on STDBY and HV from power board to preamp Modified STDBY switching YBA200 22 Sept 2003 1 00p1 2nd Proto 9 Jan 2004 v1 00 fixed heatsink and made value changes M648 PCB HISTORY 10 MAR 2004 V2 00 CHNGD SKRN EYELET SAME ON BOTH SIDE OF WIRES CHNGD SKRN TUBES NOW HAVE V DESIGNATION 16 MAR 2004 V2 00 PC 6672 Change D20 from 20V0 to 27V0 zener 6426 PC 6672 Corrected colour labels on L...

Page 10: ...EEN YEL RED ORN GRN CH1333 CH1333M Q 7 Q 4 Q 5 Q 6 C 32 C 33 YBA 200 NA AC WIRING R 60 R 56 RED BLK BRN BLUE RED BLK YEL GRN From Pre Amp to Pwr Double Ins Wires W26 W27 BLACK WHITE DBL INS WIRES YBA 200 CE SAME AS N A CH1333E ...

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