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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

MODEL TYPE: YS

2020

M 1129 (input board)

• Schematic 
• PCB Layout

M 1130 (power amp module) 

• Schematic
• PCB Layout

M 1131 (power supply board) 

• Schematic
• PCB Layout

M 1132 (pot board)

• Schematic
• PCB Layout

Manual-Service-ap2020-00-2v7 • Jun 24, 2009

All manuals and user guides at all-guides.com

all-guides.com

Summary of Contents for AP2020

Page 1: ...ng Ontario L1W 3Y8 CANADA Voice 905 837 8481 Fax 905 837 8746 Quality and Innovation Since 1963 Printed in Canada SERVICE MANUAL MODEL TYPE YS2020 M 1129 input board Schematic PCB Layout M 1130 power amp module Schematic PCB Layout M 1131 power supply board Schematic PCB Layout M 1132 pot board Schematic PCB Layout Manual Service ap2020 00 2v7 Jun 24 2009 All manuals and user guides at all guides ...

Page 2: ...e 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 électrique ou blessures aux ...

Page 3: ...S NUT ZINC 5 6119 1 4W 47K 5 MINI T R RES 4 6517 STM BTB 600BRG TO220 A TRIAC 600V 2 8787 8 32 KEPS NUT ZINC 2 4835 1 4W 56K 5 T R RES 4 5200 _10P 200V 5 CAP T R RAD CER 2 NPO 4 8720 8 SPRING NUT 2 4761 1 4W 60K4 1 T R RES 4 5405 _27P 200V 5 CAP T R RAD CER 2 NPO 2 8712 5 16 24 JAM NUT JS500 1 4848 1 4W 62K 5 T R RES 1 5817 _15P 100V 2 CAP T R RAD CER 2 NPO 2 3797 TO 247 THERMO CONDUCTIVE PAD 4 48...

Page 4: ...00V 1 4W R23 0 1 9K76 C9 220P 100V 4148 D7 U3 A MC33078P 8 V 4 V U4 C 8 V 4 V U3 C MC33078P U4 B C13 100V 100N S T R J4 S T R J3 C15 100N 50V COM M R L MONO STEREO BRIDGED 3705 S3 D 1 4W R6 33K U4 A MC33078P 1 8W R112 10R C16 100N 50V W1 3570 U1 B MC33078P COM M R L 3705 S3 A MONO STEREO BRIDGED 13 10 7 4 1 9 11 12 8 2 3 5 6 VER MODEL S DATE DESCRIPTION OF CHANGE V V V 2 10 1 00 V V V V 3 00 2 20 ...

Page 5: ...REPLACE R119 10K0 WITH JUMPER X119 PC 6873 REDO SOLDERMASK M1129 Database History CONVERT TO PCAD2002 PC 6944 ROUTE GAUGE PC 6914 ADD TARGETS AUG 15 2005 5 2 6 3 4 1 DATE MODEL S VER DESCRIPTION OF CHANGE D V N D D D V V V N N N M1129 DRILL HISTORY APR 03 2003 V06 N AUG 15 2005 V07 CONVERT TO PCAD2002 AP2020 AP4020 AP4040 AM1CE LIMITER FILTER SW GND LIFT 3436 3417 3436 3436 6435 3705 56K 120K 120K...

Page 6: ...20 MTP8P20 IRF5210 MTP23P06 IRF822 63V C43 2U2 B C TO 92 MPSA63 MPSA43 2N5551 E MPSA56 MPSA06 MPSA13 2N5401 R43 1 4W MINI 470R 1 4W 4K7 R64 MINI TO92 BC560C Q14 5102 R46 5 0W 1K2 B E TO 92 BC560C C BC550C TO 92 AS35 R54 1 4W 17K8 MJ21195 Q30 6910 TO3 MR854 D21 250V C27 33N 3682 W4 ShutDown YEL BAV21 D19 1N4745A ZD5 1W0 16V0 R30 1 4W 249R GND VCC OUT TO 92 U2 6478 AS35FN C18 16V 33U C20 16V 33U R34...

Page 7: ...7 39R0 6K04 4K7 39R0 10R 150R 470R 10V0 249R 47K 47K 60K4 BC560C 25V 100U BC550C MC33078P 22U 50V 10P 2 0W 3R9 160V 10U 470R 1N MR854 TO126 MJE350 TO220 Watts IRF630NPBF MPSA42 22U 50V TO126 MJE340 BAV21 MR854 5K6 MR854 5 0W 5R6 5 0W 1K2 MJE350 MJE340 M J 2 1 1 9 5 B o d y M J 2 1 1 9 6 B o d y 6800U 63V 6800U 63V 63V 6800U BC550C M J 2 1 1 9 5 B o d y MJ21196 Body M J 2 1 1 9 6 B o d y 0R1 5 0W 0...

Page 8: ...ted extra break holes in middle Moved pads for Q9 and Q10 down 0 075in 2008 04 01 V14 PC 7514 moved routing on back side edges 12 9 6 3 13 11 10 5 4 8 7 2 1 DATE MODEL S VER DESCRIPTION OF CHANGE SEP 06 01 JUL 17 98 MAR 10 98 3 00 4 00 5 00 5 10 DEC 17 01 PC 5641 ADD LD1 PC 5799 REPLACE TAB3 WITH AN EYELET PC 6434 ADD C45 C121 AT Q39 ADD C44 R120 AT Q38 PC 6051 Q27 Q28 HEATSINK 3896 3894 PC 6493 R...

Page 9: ...MT1 STM BTB B C TO 92 MPSA63 MPSA43 2N5551 E MPSA56 MPSA06 MPSA13 2N5401 B E TO 92 BC560C C BC550C CH1198E 1 4W R8 8K2 1 4W R19 470R 1 4W R11 20K 10N C18 100V 1 4W 3K3 R23 1 4W 470R R13 U1 C TLO74CN 1 4W 200K R20 1 4W R7 16K 25V 470U C14 FAN VOLTAGE 16V MAX WITH AMPLIFIER HOT BC550C Q5 D7 4007 Q3 MJF6388 MBS4992 Q7 A 4007 D9 ZD2 18V0 0W5 MBS4992 Q10 A C8 100U 25V U1 D TLO74CN U1 B TLO74CN 10N 100V...

Page 10: ...TLO74CN BC550C MJF6388 8K2 1 2W 10K 3K3 20K 8K2 10N 100N 4148 3K9 100N 10K 33K 470U 25V 63V 3300U 3300U 63V 16K 20K 100N 200K BRIDGE 470R 10K 100N 470R 3K3 5K6 100R 62K STM BTB 600BRG 5K6 BRIDGE 63V 3300U 25V 100U MJF6388 MJF6668 3300U 63V V610 AP2020 V610 M1131V610 X13 X12 X19 X22 D7 R36 D9 X25 R33 R3 ZD2 ZD1 ZD4 R35 R6 ZD5 ZD3 D3 D2 R15 C18 D5 R18 R21 R17 TP2 X18 C2 W33 BLU W31 YEL C8 R4 X17 X20...

Page 11: ...RAM Assy Pic Here 8793 4 40 HEX NUT 3 PLACES Q2 Q3 Q4 BEND THE LEADS UNCUT Q8 Q9 USE 8799 SELF TAPPING SCREW FOR C1 USE 22N FOR NORTH AMERICAN AND SOLDER DO NOT CUT CENTER LEAD OF THE TRIACS SEE M1131 HISTORY TABLES ASSEMBLED HEAT SPREADER SHOWN AND 680N FOR EURO CE SEE DETAIL A BEFORE MOUNTING L BRACKET ALONG THE TRACE BEND THE LEAD UNCUT ALONG THE TRACE M1131 PRODUCTION NOTES 3545 L BRKT 8701 4 ...

Page 12: ... S VER DESCRIPTION OF CHANGE D 6 00 V V V D D CONVERT TO PCAD2002 N N N APR 24 06 MAY 27 05 DEC 16 04 4 00 5 00 5 10 AP2020 2 00 3 00 MAY 12 98 AUG 24 99 SEP 17 99 PC 6064 MOVE ZD4 AND W19 AUTO INS C2 6458 6451 PC 6009 SPKON REMOVED PC 5943 PC 6064 PARTS MOVED FOR CLEARANCE IN CLEAR HEATSPREADER 1 EYLET TO TAB PC 5654 ZD1 4V7 6V2 SHEAR HOLES MOVED TO PC 6788 REDO AC FOR CE COMPLIANCE PC 6919 REDO ...

Page 13: ... FLMP 249R R62 1 8W FLMP 249R R21 1 8W FLMP 249R 1 4W 22M R16 100V C10 100N R28 1 4W MINI 47K B E TO 92 BC560C C BC550C R1 1 4W MINI 100K 100V C8 100N C126 100V 100N C1 100V 220P R3 1 4W MINI 470K 1N5225B 3V0 ZD3 0W5 R58 1 2W 1K 4148 D10 GRN LD4 5908 RED LD3 5906 W4 3622 NOTE 1N750ARL 4V7 ZD2 0W5 R68 1 4W MINI 47K C21 63V 220N M1132 M1154 RED LD5 R CLIP 5906 TO92 BC560C Q3 5102 TO92 BC560C Q6 5102...

Page 14: ... 16V 33U RED 4148 220P 4148 10K MPSA13 RED 15K 249R GRN GRN 1 2W 1K 10K 14in 14C 10K LM13600N LCLP TEMPB SDOWN TEMPA V LVGND V TEMPA LSPOST SDOWN SDOWN PROT B RSIG RREF M1132 B M1154 3622 M1132 X8014 TO TOP AMP TO POWER PCB TO BOTTOM AMP V22 LREF PROTECTA TEMPB RCLP AP2020 VX1200 3604 M1132B M1132 AP2020 7V00 M1154 V22 M1132B VX1200 R18 R25 C21 X23 C126 R46 X29 R63 R69 R65 C5 R16 R49 C9 R28 C39 R4...

Page 15: ...EGEND M1132B TO AID IN IDENTIFYING VX1200 BOARDS WASHER SEE LAYOUT DIAGRAM PRODUCTION NOTES 1 0 4 2 LED PCB P22 8870 SCREW 4 FOR M1132 USE 3622 CABLE FOR M1132B USE 3604 CABLE PT 3739 3511 POT SPACER 3 ADD A STICKER OVER THE LEGEND M1132B TO AID IN IDENTIFYING VX1200 BOARDS WASHER SEE LAYOUT DIAGRAM PRODUCTION NOTES All manuals and user guides at all guides com ...

Page 16: ...0R X8014 M1132 M1154 Database History AP2020 VX1200 V22 JUN 23 09 PIN CONFIGURATION SEE LAYOUT DIAGRAM C E B TO 92 BC560C BC550C E C B TO 92 MPSA63 MPSA43 MPSA13 2N5551 MPSA56 MPSA06 2N5401 STYLE_P22 4 1 6 5 3 2 MODEL S PC PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY PENDING CHANGE X X X X X X PC PC PC PC PC PC X8014 M1132 M1154 PENDING CHANGES AP2020 VX1200 V22 12 9 6 3 13 11 10 5 4 8 7 2 1 DATE ...

Page 17: ...System i Measure DC Voltage at TP1 on the Power Supply board while driving ChA into 4 ohms Keep ChB Volume control to minimum This will result in heating only Ch A Observe TP1 rising from 3 0 to 3 5 Vdc due to ChA Temperature Sensing The cooling fan starts running at low speed ii Turn ChA Level control to minimum and ChB to maximum to start heating ChB and cool ChA Soon the voltage at TP1 will sta...

Page 18: ... Voltage Vrms 47 0 35 5 99 0 Power Watts 552 630 1225 30 Watts Short Circuit Apply a short circuit to the Ch1 output The Protect Led goes On then flashes momentarily OFF then ON again once every 4 seconds Test at 1 Vrms Out and Large Signal Out 30 Vrms Remove the short and observe the output signal is restored Repeat for the Ch2 output Short Circuit Bridge Mode Input Output Relationship Confirm th...

Page 19: ...e rotation Bumpers are mounted on the fishpaper XLR Input jacks are centered relative to the chassis cutout holes Schematic Diagrams M1129 Preamplifier and Filter M1130 Current Voltage Amplifier M1131 Power Supply and Fan M1132 Volume Control and Activity Leds New Circuits M1131 Dual Gain Fan Drive Circuit OP amp U1 has a Common Base transistor amplifier Q6 connected across its feedbacak path At l...

Page 20: ...U 330 0U 63 V 330 0U 6 3 V E Y 5 J4 J3 E Y 1 1 330 0U 63 V DUMMY T B 1 1 E Y 2 0 E Y 2 1 GND R E D Y E L R E D S W IT C H T O 2 4 O H M S X F R M R E D US E ME TAL S PACE R A C GR N CHAS S IS B L K W H T Y E L R E D L BLUE OR ANGE WHIT E WHIT E R E D YE L R E D GR E Y GR E Y BROWN BLK BR N FOR 230V CE 2 1 All manuals and user guides at all guides com ...

Page 21: ...0U 6 3 V E Y 5 J4 J3 E Y 1 1 330 0U 63 V DUMMY T B 1 1 E Y 2 0 E Y 2 1 GND R E D Y E L R E D S W IT C H T O 2 4 O H M S X F R M R E D US E ME TAL S PACE R A C GR N CHAS S IS B L K W H T Y E L R E D L BLUE OR ANGE WHIT E WHIT E R E D YE L R E D GR E Y GR E Y BROWN BR N BLK BROWN FOR 245V CE WHITE 1 2 All manuals and user guides at all guides com a l l g u i d e s c o m ...

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