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SERVICE MANUAL

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

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

WEB ACCESS: http://www.yorkville.com

R2

Summary of Contents for AP812

Page 1: ... Falls New York 14305 USA Voice 716 297 2920 Fax 716 297 3689 WORLD HEADQUARTERS 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 WEB ACCESS http www yorkville com R2 ...

Page 2: ...CTRIQUE 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 PERSONNES 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 c...

Page 3: ...T139 TO220 16A TRIAC 500V 2 3827 SQUARE BUMPER BUTTON BLACK 10 4943 1 4W 4K7 5 2 U T R RES 16 6880 4N35 OPTO COUPLER 2 8392 RED STYLE 1 KNOB 21 4982 1 4W 4K7 5 MINI T R RES 33 6478 AS35FN TO92 TEMPERATURE SENSOR 2 8393 GREY STYLE 1 KNOB 12 6128 1 4W 4K99 1 MINI MF T R RES 58 5405 _27P 200V 5 CAP T R RAD CER 2 NPO 3 8394 GREEN STYLE 1 KNOB 11 4828 1 4W 6K8 5 T R RES 2 5203 _47P 100V 2 CAP T R RAD C...

Page 4: ...nitor Pre EQ Out R Pre EQ Out L L Main R Mon EQ AMP ASSIGN SWITCH EFFECTS Sel Mod HP Jack Mon Bus Left Bus Right Bus 400 Watt L Main 400 Watt R Mon L Main R Mon L Main Post EQ Out R Mon Post EQ Out Efx Send 9 Band EQ 9 Band EQ LED Bar Display Pan Pot 10db Gain Pot Ch Fader Low Mid Sweep High Low Mid High Block Diagram for AP812 818 D E S I G N E D M A N U FA C T U R E D B Y Y O R K V I L L E S O U...

Page 5: ...V C2 CW HEADPHONE 50K 1B P7 270R R22 270R R21 270R R18 7K5 R99B 620R R24 620R R23 CW MASTER_EFX_SEND 50K 1B P6 100n C29 CW 10K P4A 100n C19 6K8 R39 4148 D3A 47P C11 100p C12 10K R13 1 2 33078 U15 2 3 1 100K R111B 10K R15 S2_MAIN 50K 1B P2 S1_MAIN 50K 1B P1 470R R84 1 4 MC4741 U2 2 3 1 TLO72 1 2 4 V 8V U5 2 3 1 1 4 MC4741 U2 13 12 14 1 4 MC4741 U2 9 10 8 1 4 MC4741 U2 6 5 7 33K R31IJ RING SND EFX J...

Page 6: ... AA09 VDD GND AA05 AA11 AA04 AROE AA03 AA10 AA02 AD7 AA01 AA00 AD6 AD0 AD5 AD1 AD4 AD2 AD3 RESET GND VDD XTALO XTALI OVFL ENC1A ENC1B ENC2A ENC2B EDCLK MCLK PPSEL MCEQ0 ED2 ED3 ED1 ED4 ED0 ED5 EA0 ED6 VDD GND ED7 EA1 EA3 EA2 EA5 EA4 EA7 EA6 MUTE HSTWE MUTEAD MUTO HSTACK HSTREQ HSTOE IRA8 HSTA8 SAPSO CLRBR GND VDD FSYNCI U2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ...

Page 7: ... 00 AUG 30 00 MAY 15 00 MAR 14 00 OCT 21 99 MAR 03 99 3 30 3 20 3 10 3 02 3 01 3 00 2 00 22N_R40 R41 G H_1K2 3K PC 6473_C12G H_6N8 5N6_C23G H_47N PC 6292_R16FX_680R 470R_DEL_C5FX PC 6213_R10_6K8 3K_J315 1K5 R315 RCA_JK_ 3466_ 070 059 PC 6244_HOLE_SIZE_FOR_GND_LEG_OF MAKE_ALL_SOLDERMASK_BIGGER_THAN_PAD PC 6140_HEADPHONE_JK_ 3497 3921 REF _R18H R19H PC 5934_MOVED_C15G_PC 5960_CORRECT PC 5936_FIX_PRO...

Page 8: ...MC1 11 MC1 3 TO_FRONT_PANEL MC1 1 MC1 2 MC1 8 MC1 7 MC1 9 MC1 4 MC1 5 MC1 6 MC1 12 MC1 10 1K 1W R181 1K 1W R182 120K R96A 1N750A 4 7V D29B 27K R238B 100n 100V C71B 100U 25V C8 BC560 Q50B VCC RST GND DS1233 Q30A 1 2 3 10n 50V C89B 16V 68N C46 4N35 U4B 6 5 4 100V 10N C45 16V 68N C44 68K R105B PIN 11 D IABC 1 2 LM13600 6 V 11 V U2 4 2 3 1 5 8 7 16v 33U C52 1 2 TLO72 U1 2 3 1 1 2 TL072 U3B 2 3 1 1 2 T...

Page 9: ... R9C 562R R8C 562R R27C 10K R37C 220R J79 J80 J81 J83 J54 J45 J67 R3D 1K R7D 249R J82 P5D B 10K TREBLE 4537 C9A 1n5 R5D 4K99 P4D B 10K MID 4537 R1D 4K7 R2D 4K7 P4C B 10K MID 4537 R74C B 10K BASS 4537 P7C B 10K PAN 4537 P3D B 10K BASS 4537 P5C B 10K TREBLE 4537 P7D B 10K PAN 4537 H1 KNOB PART FUNCTION REF MODEL S AS_OF F F F MID_SWEEP GAIN_SLIDER PAN_CONTROL P P P 4385 4584 4537 N N N 25 11 99 25 1...

Page 10: ...Y 29 03 JAN 22 02 JAN 07 02 MAR 30 00 MAR 25 99 JUN 08 98 FEB 27 98 FEB 16 98 FEB 12 98 MAY 15 97 MAR 25 97 5 00 4 00 3 30 3 20 3 10 3 00 2 11 2 10 2 00 1 00 NEW PADS FOR TABS PC 6282 NEW BRIDGE MOUNTING PC 6204_R102 R172 43K 15K C42 C45 68N 10N PC 6212_GRND WIRE ADDED TAB3 PC 5951_C1 470u 1000u PC 5713_TP4TO_RADIAL JUMPER PC 5622 C214 RADIAL AXIAL REVERSED_ROUTING_AT_LAST VBE_TRANSISTOR CHANGED R...

Page 11: ...T jack as well To solve these problems follow the directions listed below Required Modification 1 Seperate Top Bottom 2 Find where the Orange Green Wires are soldered to eyelets pretty well in the center of the board marked with an Orange Green X on the layout provided CUT the Orange Green Wires as close to the EYELETS as possible on the filter capacitor side as shown circled in RED 3 Solder both ...

Page 12: ... 9 8 7 6 5 4 3 2 1 DESCRIPTION OF CHANGE VER DATE MODEL S D D D MAR 25 99 JUN 08 98 FEB 27 98 FEB 16 98 FEB 12 98 MAY 15 97 MAR 25 97 V V V V 3 10 3 00 2 11 2 10 2 00 1 00 N N N PC 5951 c1 420u to 1000u 35V PT 5635 PC 5713_TP4_TO_RADIAL_JUMPER PC 5622_C214_RADIAL AXIAL REVERSED_ROUTING_AT_LAST_VBE_XTR CHANGED_ROUTING_AT_VBE_XTR S L1A B_ 3759 3820 PC 5372_ADD_DIODES_D22 D24 FIRST_PRODUCTION AP812 M...

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