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CANADA
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
Voice: (905) 837-8481
Fax: (905) 837-8746
www.vtcproaudio.com
U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: (716) 297-2920
Fax: (716) 297-3689
V44
Power
V 4 4
POWER AMPLIFIER
Service Manual
Channel A
Channel B
-15
-12
-15
-12
-18
-9
-18
-9
Protect
Protect
Clip
-6
Clip
-6
-21
-21
Power
Power
Signal
-3
Signal
-3
-30
-30
-00
-00
0
0
-00
-00
0
0
dB
dB
MODEL TYPE: YS4040
Manual-Service-VTC-V44-00-1v1
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Summary of Contents for VTC Pro Audio V44
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Page 1: Service Manual
L1W-3Y8 CANADA 14305 USA Power Channel A Channel B Voice: (905) 837-8481 Voice: (716) 297-2920 V 4 4 Protect Protect Clip Clip POWER AMPLIFIER Power Power Signal Signal Fax: (905) 837-8746 Fax: (716) 297-3689 Service Manual MODEL TYPE: YS4040 www.vtcproaudio.com Manual-Service-VTC-V44-00-1v1... -
Page 2: Important Safety Instructions
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. - Page 3 VTC V44 Parts List 5/4/2010 YS # Description Qty. YS # Description Qty. YS # Description Qty. YS # Description Qty. 5906 RED 3MM LED 1V9 20MA.4SPCER T&R 4390 _10K AUD 16MM DETENT 4854 1/4W 1K2 5% T&R RES 8629 10-32 X 1/4 SPACER PHENOLIC 5908 GRN 3MM LED 1V9 20MA.4SPCER T&R...
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Page 4: Power Amp
6880 6880 4N35 4N35 U1:B U1:A ZD10 1/4W 1N750ARL 220R MINI J1:A Function SPEAKON 4C 3628 1/4W 1/4W 250V 400V 620R W1:A IRF630NPBF W1:B 3628 SPEAKON 4C 6752 5.0W W1:C TO220 Function MR854 Function J1:B MJ21196 MJ21196 MJ21196 MJ21196 200V 220P BC550C W1:D... - Page 5 SOCKET WITH DIRECTION R49A R57A 151R BLK 14" R72A C29A 3628 3628 NL4MP-1 NL4MP-1 C30A CLINCH INSERT ORIGIN LONG AXIS 2.5" 19" ORIGIN AP4040 / V44 LAYOUT DO NOT STUFF WIRES OR SPEAKON JACKS FOR SERVICE BOARDS. SEE LAYOUT DOCUMENTATION...
- Page 6 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:...
- Page 7 SEE LAYOUT DIAGRAM M1146 Database History M1146.SCH_DATABASE_HISTORY MODEL(S):- AP4040 / V44 MODEL(S):- AP4040 DATE VER# DESCRIPTION OF CHANGE FEB/12/98 1.00 DERIVED FROM M1126 DATE VER# DESCRIPTION OF CHANGE 2N5401 JUN/19/98 1.10 PC#5767 C10,C15,C20A 2N2 TO PT#5427 APR/25/06 PC#7007 MAC-224-4 TO STM-BTB-600BRG...
- Page 8 W36:G 4007 Q212 W37:H W36:H 5105 6840_PC 3700_DRW 3721_DRW TO-92 TO-92 TO-221D TO92 FAN1 4007 Product Product AP4040/V44 AP4040/V44 D223 Sheet1 Sheet1 4007 PCB# PCB# Sheet Sheet Date: Date: Wed Feb 03, 2010 Wed Feb 03, 2010 Rev: Rev: 12V00...
- Page 9 StepAndRepeat - X2@6.675Y1@0.000 M1134 V44 XFMR XF SEC MID 6451 BRIDGE C208 C207 C210 C209 BRIDGE MOUNTED 100V 100V 330U 330U BY WIRING TOP AMP 6419 D205 4148 D204 4148 PC-C TO BOTTOM Q240 2328 2328 Q241 C202B RELAY 1A...
- Page 10 M1134 V44 X8012 PRODUCTION NOTES: 1. FOR C1 USE 22N FOR NORTH AMERICAN AND 680N FOR EURO. 3. PC#7717 ONLY FOR V44 CHANGE R201A,R201B,R202A AND R202B 2. ADD RTV UNDER RELAY AND BEND LEADS FLAT TO PCB. FROM 10K0 TO 16K5 1% 1/4W #5057...
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Page 11: Pin Configuration
CHANGE C213 FROM 470U 25V #5618 TO 470U 63V #5621 23-JAN-2008 10.00 Solderability Update, corrected AC clearances. X8012 PENDING CHANGES 17-FEB-2009 . PC#7717,ONLY FOR V44. CHANGE R201A,R201B,R202A 3721_DRW 3700_DRW TO-92 TO-92 TO-221D R202B FROM 10K0 TO #5057 16K5 1% 1/4W... - Page 12 BC560C TO92 1N750ARL 5102 470N BC560C 1/4W MINI MPSA63 5102 4148 1/4W MINI MINI 220N TO92 1/4W 5106 FLMP 1/4W 249R 1/8W TO92 1/4W 1/4W 1/4W 100K FLMP 249R LM13600N 1/8W U4:A MINI 1/4W MINI FLMP 1/4W 249R 1/8W 1/4W 1/4W FLMP 249R...
- Page 13 Removed shear, solder update, std board size 03-MAR-2009 8.00 CREATE X8011, M1128 FOR AP, VX AND M1133 FOR VTC PC#7717, M1133,V42 AND V44 CHNAGE R34 AND R47 FROM 470R TO 2K #4808 X8011 DRILL HISTORY MODEL(S):- AP4020 AND AP4040/VX2400 AND VX2402/V42 AND V44...
- Page 14 M1133 V42/V44 RCLP LVGND M1128 AP-VX M1133 PRTCT 21in 14C 100K 2329 3604 To Power Supply Pcb BC560C 100K 220P 470N 220P 4148 470K Channel A Channel B MPSA63 R Clip 470K 620R R136 R Activity R55A 220R 14K7 4148...
- Page 15 SEE LAYOUT DIAGRAM X8011 PRODUCTION NOTES - M1133 V42/V44 3511 8870 WASHER SCREW SPACER PT#3739...
- Page 16 Removed shear, solder update, std board size 28-MAY-2009 8.00 CREATE X8011, M1128 FOR AP, VX AND M1133 FOR VTC PC#7717, 7718 - M1133,V42 AND V44 CHANGE R34 AND R47 FROM 470R TO 2K #4808 *PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY TO-92...
- Page 17 U3:A MC33078P 220P 100V 1/4W 1/4W 1/4W FILTER SW 1K54 9K76 9K76 68N 100V 68N 100V 0.1% 0.1% LINE XLR U4:A S1:B 150N 63V 150N 63V MC33078P 1/4W 120K 220P 100V LIMITER 1/4W 1/4W 1/4W 1K54 9K76 9K76 0.1% 0.1% S2:A MONO-STEREO-BRIDGED S3:A...
- Page 18 3417 3436 3436 BRIDGED - STEREO - MONO R112 150N R109A 3436 R111 R109B 150N 100N 100N 4148 LSPRE RSPRE 14 PIN SCKT MC33078P 4148 10K0 9K76 220P 9K76 100N 220P 100N 100N 220P 220P 220P 220P 1K54 1K54 LINE XLR CLINCH INSERT ORIGIN...
- Page 19 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 OCT/1997 1.00 FIRST PRODUCTION APR-03-2003 V06 NOV/12/97 2.00 REVERSED INPUT POLARITY. MODIFIED FOR AP2020 AUG-15-2005 V07 CONVERT TO PCAD2002 DEC/02/97 C27, C28, C29, C30 TO 150n...
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