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A P 40 4 0
WEB: www.yorkville.com
WORLD HEADQUARTERS
CANADA U.S.A.
Yorkville Sound Yorkville Sound Inc.
550 Granite Court 4625 Witmer Industrial Estate
Pickering, Ontario Niagara Falls, New York
L1W-3Y8 CANADA 14305 USA
Voice: (905) 837-8481 Voice: (716) 297-2920
Fax: (905) 837-8746 Fax: (716) 297-3689
MODEL TYPE: YS4040
SERVICE MANUAL
Quality and Innovation Since 1963
Printed in Canada
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IMPORTANT SAFETY INSTRUCTIONS This lightning flash with arrowhead symbol, within The exclamation point within an equilatereal triangle is an equilateral triangle, is intended to alert the user to intended to alert the user to the presence of important the presence of uninsulated “dangerous voltage” operating and maintenance (servicing) instructions in within the product’s enclosure that may be of sufficient the literature accompanying the appliance. magnitude to constitute a risk of electric
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AP4040 Parts List 3/17/2010 YS # Description Qty. YS # Description Qty. YS # Description Qty. YS # Description Qty. 5906 RED 3MM LED 1V9 20MA.4SPCER T&R 3 5896 4700U 80V 20%CAP BLK 25X50MM ELS 16 4986 1/4W 270R 5%MINI T&R RES 2 8869 8-18 X 1/2 THRD CUTTING FOR PLASTIC 4 5908 GRN 3MM LED 1V9 20MA.4SPCER T&R 3 4390 _10K AUD 16MM DETENT P22 2 4855 1/4W 330R 5% T&R RES 2 8999 8-32 X 5/8 PAN PH TAPTITE JS500 17 6419 BRIDGE 35A 400V WIRE LEAD GI3504 2 4520
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orkville Sound • http://www.yorkville.com SERVICE MANUAL SERVICE MANUAL orkville Sound • http://www.yorkville.com The activity LED circuit consists of Q1 and the surrounding circuitry. The audio sig- Y Yo or rk kv vi il ll le e A AP P4 40 04 40 0 P Po ow we er r A Am mp pl li if fi ie er r nal enters the activity LED circuit through R2. R2 and C21 form a differentiator that turns Q1 on illuminating the activity LED whenever the audio signal increases in ampli- tude. A constant current flows t
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orkville Sound • http://www.yorkville.com SERVICE MANUAL orkville Sound • http://www.yorkville.com SERVICE MANUAL CIRCUIT DESCRIPTION: The voltage amplifier is a mirrored image with circuitry connected to the positive power supply rail being identical (but opposite polarity) to the circuitry connected to the nega- tive power supply rail. For this reason we will look in detail at the positive side of the amplifier. The audio signal enters the voltage amplifier at the SIG input. The signal passes
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orkville Sound • http://www.yorkville.com SERVICE MANUAL SERVICE MANUAL orkville Sound • http://www.yorkville.com amount of time was spent on the current limit circuitry so that it may simulate the safe This causes Q40 to turn off until the reduced current flowing through Q5 maintains operating area of the output transistors (SOAR curve). No matter how reactive the load 0.5V across R12. Q1 will turn off slightly causing Q5 and Q40 to increase their collector may be the phase shift that it presen
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orkville Sound • http://www.yorkville.com SERVICE MANUAL orkville Sound • http://www.yorkville.com SERVICE MANUAL If prolonged current limiting occurs on the amplifier’s output transistors then D204 or D205 (depending on which channel is current limiting) will be forward biased turning on y time y ou replace b wn output transistor s on a Q202 (from its off state). Now +144VDC appears on the collector of Q202 and through M1146 boar d test the DC pr otection triac with the f wing cir R210 and R21
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Y Y Y Yorkville Sound orkville Sound orkville Sound orkville Sound • • • • http://www http://www http://www http://www.y .y .y .yor or or orkville kville kville kville.com .com .com .com SERVICE SERVICE SERVICE SERVICE MANUAL MANUAL MANUAL MANUAL Y Y Y Yorkville Sound orkville Sound orkville Sound orkville Sound • • • • http://www http://www http://www http://www.y .y .y .yor or or orkville kville kville kville.com .com .com .com SERVICE SERVICE SERVICE SERVICE MANUAL MANUAL MANUAL MANUAL is 10
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SERVICE BULLETIN SERVICE BULLETIN AP4020 & AP4020 & AP4040 AP4040 Quick Fix for M1146 & M1126 To speed up the servicing of the AP4020 or AP4040 on your bench, Yorkville Sound’s service department has developed a method to replace the compo- nents most likely to fail when a M1146 amplifier board requires service. This Quick Fix kit contains the procedure, assembly drawings, and compo- nents to perform the Quick Fix to a M1146 or M1126 board. It should be understood that the person using this proc
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SERVICE BULLETIN SERVICE BULLETIN AP4020 & AP4020 & AP4040 AP4040 STEP 6. Measure across the pair of test points shown in the component Testing Repaired Circuit Boards layout listed in the table below. If the measured value is not Now that you have rebuilt the M1146 or M1126 circuit board. It is just as within + or – 10% of the value listed in the table then replace important to properly power up the board. If the sinewave doesn’t look right the resistors shown in the table below. check the sign
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A B C D E F G H I J K L M N O P Q 1 1 BC560C 0W5 D2 TO92 4V7 Q6 1N750ARL 5102 C9 470N 63V BC560C R7 D6 * NOTE: Q5 MINI 1/4W MPSA63 2 2 R16 47K 5102 M1128 - FOR R34 NAD R47 USE #4821 470R 4K7 4148 22M 1/4W R50 MINI MINI Q2 . 63V 220N TO92 R28 M1133 - FOR R34 AND R47 USE #4808 2K 1/4W 4K7 FLMP C22 5106 15K 1/4W 249R . R18 * 1/8W R1 TO92 . . 15K R24 15K 1/4W 1/4W 1/4W 100K FLMP . R19 249R R25 LM13600N 1/8W U4:A R23 MINI 47K R15 1/4W 22M R27 MINI . 3 3 4K7 FLMP 1/4W 249R R17 1/8W . . 15K R22 1
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- - - + + + - - + + M1128 AP-VX RCLP LVGND X17 M1128 AP-VX X12 M1133 X24 VTC X14 PRTCT V- V+ W1 6 R1 21in 14C 100K X13 12 1 2329 X9 X1 3604 To Power Supply Pcb R49 15K X4 R48 Q6 10K 15K R39 15K R32 C10 15K R50 BC560C X15 4K7 R7 R2 10K R33 C1 100K X10 220P R34 R47 470R 470R C9 470N 220P 3V0 D1 X8 C2 D9 4148 470K X23 R4 X21 D2 C22 Q2 R5 8M2 RED LD5 RED 3V0 LD3 - Channel A Channel B Q1 X11 RED + 62K LD6 MPSA63 R Clip X6 470K 620R R136 C4 R Activity LD4 GRN 1K2 220R R3 R55A Q5 GRN P1 P2 C35 14K7
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SEE LAYOUT DIAGRAM X8011 PRODUCTION NOTES - M1128 AP/VX 1. P22 POT PCB 3511 8870 WASHER SCREW 2. LED SPACER PT#3739 0.4"
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SEE LAYOUT DIAGRAM X8011 PCB_DATABASE_HISTORY X8011 DRILL HISTORY MODEL(S):- MODEL(S):- AP4020 AND AP4040/VX2400 AND VX2402/V42 AND V44 AP4020 AND AP4040/VX2400 AND VX2402/V42 AND V44 # DATE VER# DESCRIPTION OF CHANGE # DATE VER# DESCRIPTION OF CHANGE 1 OCT/97 1.00 FIRST PRODUCTION 1 D V N LEAD/PIN REFERENCE 2 APR/17/98 2.00 #5664 RIBBON CABLE CONNECTIONS CHANGED FOR 2 D V N 3.. PROTECT CIRCUIT 3 D V N 4 DEC/09/98 3.00 PC#5736 TRACES CHANGED POT SUPPORT SCREWS 4 D V N 5 . . ADDED 5DVN 6 NOV/20/0
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A B C D E F G H I J K L M N O P Q R S T U V 1 1 2 2 C23 U3:A 33U 16V MC33078P C9 220P 100V 3 3 R27 R22 R23 C34 C33 1/4W 1/4W 1/4W FILTER SW 1K54 9K76 9K76 . 68N 100V 68N 100V 0.1% 0.1% J1 LINE XLR C30 C29 S1:B U4:A 150N 63V 150N 63V 4 4 MC33078P W1 R20 1/4W 120K C10 . 220P 100V LIMITER R25 R26 R24 1/4W 1/4W 1/4W 1K54 9K76 9K76 . 0.1% 0.1% 5 5 J3 S R T - - - S2:A MONO-STEREO-BRIDGED S3:A S3:B 3705 3705 MONO-STEREO-BRIDGED L MR L MR COM COM 6 6 R111 1/4W 10R RAD R112 1/8W 10R S3:C S3:D . MC33078P
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TP5 SLEEVE SLEEVE - - SL-SW SL-SW RING RING 7 7 - - RING-SW RING-SW TIP TIP - - TIP-SW TIP-SW 12 3 45 6 7 CL CC CM CR DL DC DM DR AL AC AM AR BL BC BM BR TP1 TP2 TP4 S4 S2 S1 S3 W2 3417 3436 3436 BRIDGED - STEREO - MONO C1 C28 10R R112 150N W4 R109A 33K R6 4M7 T R V X42 68N C27 3436 X9 C32 10R R111 R109B W3 4M7 X10 C24 C13 150N C29 X39 100N C23 16V 33U 100N 68N C33 R19 C14 LSPRE X41 4148 D4 RSPRE U3 C34 C30 14 PIN SCKT X11 MC33078P 8910 11 12 13 14 X12 X40 X38 X35 4148 D7 X13 X36 R38 10K0 TP3 U4
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M1129.sch_schematic-DATABASE_HISTORY M1129 DRILL HISTORY MODEL(S):- AP4020 / AP4040 / AP2020 / AM1CE MODEL(S):- AP2020/AP4020/AP4040/AM1CE # DATE VER# DESCRIPTION OF CHANGE # DATE VER# DESCRIPTION OF CHANGE 1 OCT/1997 1.00 FIRST PRODUCTION 1 APR-03-2003 V06 N 2 NOV/12/97 2.00 REVERSED INPUT POLARITY. MODIFIED FOR AP2020 2 AUG-15-2005 V07 CONVERT TO PCAD2002 3 DEC/02/97 . C27, C28, C29, C30 TO 150n 3 D V N 4 APR/22/98 2.10 PC#5694 ADD NETS BRPRTCT, LVGND-28 TO BRG SW 4 D V N 5 SEP/06/01 2.20 DELE
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A B C D E F G H I J K L M N O P Q R S T U V 1 1 6880 6880 6 4N35 4N35 1 U1:B U1:A R80 5 ZD10 0W5 1/4W 2 4V7 1N750ARL 220R 2 4 . . 2 MINI BLK RED EY1 EY2 . . J1:A Function SPEAKON 4C R30 R31 3628 C9 C10 1/4W 1/4W 4N7 250V 2N2 400V 1+ 620R 39R . . 3 2_ 3 W1:H 8 1_ D 2+ IRF630NPBF 8 W1:G Q11 D21 3628 R29 SPEAKON 4C G N 6752 5.0W TO220 Function 8 MR854 W1:F 3K6 . Function J1:B S MJ21196 MJ21196 MJ21196 MJ21196 BC550C 200V 220P Q13 Q15 Q17 Q19 W1:E 8 C18 R29A ZD8 1W0 6909 6909 6909 6909 5.0W Q20A
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. . X3 5.0W R63 5R6 3820 L1 4UH ETCH GUIDE INTO WAVE YEL EY9 ETCH GUIDE D13 MR854 D22 MR854 D15 MR854 D14 MR854 X24 Q1 Q2 MR854 D17 MR854 D19 MR854 D18 MR854 D16 BEC LOC Q31 6874 6873 R31 STM-BTB-600BRG Q30 MJE350 MJE340 6752 6925 7004 7005 .. MTP8P20 C9 2SA2121-0 2SC5949-0 TO126 TO126 TO220 TO220 TO3P TO3P + Q41 W5 X21 1/2W 1/2W R69 R66 _ X18 22K 22K R84 10U C21 TO92 Q40 R33 16V Q11 Q12 1/2W 1/2W 200R0 R68 R67 W8 22K 22K 91K RT1 R39 MBS4992 YEL EY10 470R Q6 Q5 Q29 D10 BAV21 200R0 R83 R86 470R
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SEE LAYOUT DIAGRAM M1146 - AP4040 / V44 PRODUCTION NOTES 4. MOUNTING HARDWARE FOR Q11,Q12 #8741 4-40X 1/2" BOLT 1. MOUNTING DETAILS FOR 5W ADD #8629 SPACERS ONLY ON 5 WATT RESISTORS R29 AND R45. ENSURE SPACERS ARE UNDER 8. TAB WIRE COLOURS: TAB 1 RED 16AWG TAB 2 YEL 16AWG RESISTOR BODY ENOUGH TO RAISE IT OFF THE BOARD SURFACE. #3501 BELL WASHER TAB 3 BLK 16AWG TAB 4 WHT 16AWG TAB 5 BLU 16A
