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Service Manual

V44

MODEL TYPE: YS4040

U.S.A.

Yorkville Sound Inc.

4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA

Voice: (716) 297-2920
Fax: (716) 297-3689

CANADA

Yorkville Sound

550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA

Voice: (905) 837-8481
Fax: (905) 837-8746

Power

V44

POWER AMPLIFIER

Protect

Power

-00

0

-00

0

-21

-30

-15

-18

-6

-12

-9

-3

dB

-00

0

-00

0

-21

-30

-15

-18

-6

-12

-9

-3

dB

Clip

Signal

Channel A

Clip

Signal

Channel B

Protect

Power

Summary of Contents for V44

Page 1: ...w York 14305 USA Voice 716 297 2920 Fax 716 297 3689 CANADA Yorkville Sound 550 Granite Court Pickering Ontario L1W 3Y8 CANADA Voice 905 837 8481 Fax 905 837 8746 Power V44 POWER AMPLIFIER Protect Pow...

Page 2: ...cord or plug is damaged liquid has been 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...

Page 3: ...4 4878 1 4W 43K 5 T R RES 2 7004 2SA2121 0 TO3P PNP TRAN TK 2 8797 5 16 18 KEPS NUT JS500 1 6119 1 4W 47K 5 MINI T R RES 9 7005 2SC5949 0 TO3 NPN TRANSISTOR TK 2 3797 TO 247 THERMO CONDUCTIVE PAD 4 48...

Page 4: ...3628 SPEAKON 4C Function 1 1_ J1 A 3628 SPEAKON 4C Function C E B R86 1 4W MINI 470R R69 1 2W 22K R64A 1 4W FUSIBLE 151R GND VCC OUT AS35FN TO 92 Watts Q31 6478 Function R42A 1 4W 56K R51A 1 4W MINI...

Page 5: ...H 22K 1 2W 1 2W 22K 1 2W 22K 1 2W 22K MR854 MR854 151R 39R0 3K3 4N35 33V0 TO220 IRF630NPBF MR854 MR854 MR854 12V0 22U 50V 470 0U 80V 47 00 U 80 V 470 0U 80V 4 7 0 0 U 8 0 V 4 7 0 0 U 8 0 V 5 0W 0R1 5...

Page 6: ...ER MOUNTING DEVICE DO NOT CUT LEGS BEND LEGS IN DIRECTION SHOWN IT IS IMPRATIVE THAT LEG ARKED 2 AND 3 ARE BENT FLAT AGAINST THE COPPER SURFACE COOLED FROM WAVE SOLDER IS 6 INCH LB INITIAL TORQUE FOR...

Page 7: ...OCT 12 00 6 00 7 00 8 00 8 10 MAY 03 02 PC 6278 ADD R86 C17 AT Q41 PC 6083 REDO GND TRA PC 6429 ADD R87 C18 AT Q40 PC 6438 ADD R88 R89 AT U1 U2 PC 6517 Q13 20 6900 6909 Q21 Q28 6927 6910 R13 27K 43K C...

Page 8: ...W35 K 12 12 W35 L 4 12 W35 D 7 12 W35 G 9 12 W35 I 2 12 W35 B 2N6517 R214 1 2W 15K R213 1 2W 15K R216 1 4W MINI 1K R215 1 4W RAD 1K R202B 1 4W 16K5 C206 25V 100U R204B 1 4W MINI 10K0 C214B 100V 220P...

Page 9: ...C 250V 4N7 100V 330U PRI 18 LREF LSIG ACT RSIG BRPRTCT X8012 M1134 V44 RCLIP RCLIM RDRV ROG RTSENS ROSIG ROG LCLIP LCLIM LOG LTSENS LOG LOSIG 18 12V0 RCLIP PRTCT LVGND TOP AMP M1147 M1134 RNFB RREF LC...

Page 10: ...M1134 V44 3 PC 7717 ONLY FOR V44 X8012 PRODUCTION NOTES SEE LAYOUT DIAGRAM 1 FOR C1 USE 22N FOR NORTH AMERICAN AND 680N FOR EURO...

Page 11: ...95 ADD TP9 10 ENLARGE AC TRACES PC 5798 REPLACE ZD212 WITH JUMPER PC 5664 ADD EXTRA PROTECT CIRCUIT REPLACE R233 THERMISTOR WITH SURGISTORS DERIVED FROM M1127 PC 6218 UPDATE REL2 SYMBOL HOLE LOCATIONS...

Page 12: ...47K 63V C6 100N RED LD3 Function 5906 GRN LD4 Function 5908 63V C8 100N R3 1 4W MINI 470K R36 1 4W MINI 8M2 VCC LM13600N Dual VCA 6745 U3 C Function 1N5225B 3V0 D1 0W5 12 12 W1 L 10 12 W1 J 6 12 W1 F...

Page 13: ......

Page 14: ...9R 78K7 14K7 100N 62K 47K 15K 249R 620R 220R 220R 1K2 470N 15K 15K 15K 47K 249R 47P 82K 14K7 4148 GRN BC560C GRN 10K BC560C 220P RED MPSA63 RED LM13600N 10K AUD 100N 10K AUD M1128 M1133 LCLP BRPRTCT L...

Page 15: ...M1133 V42 V44 2 3511 POT 1 P22 PT 3739 SCREW SPACER LED 8870 WASHER 0 4 PCB SEE LAYOUT DIAGRAM X8011 PRODUCTION NOTES...

Page 16: ...N OF CHANGE OCT 97 1 00 FIRST PRODUCTION APR 17 98 2 00 5664 RIBBON CABLE CONNECTIONS CHANGED FOR PROTECT CIRCUIT DEC 09 98 3 00 PC 5736 TRACES CHANGED POT SUPPORT SCREWS ADDED NOV 20 01 3 10 PC 6466...

Page 17: ...100V S1 B FILTER SW C33 68N 100V C34 68N 100V 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 S...

Page 18: ...150N 68N 4148 56K 150N 9K76 68N MC33078P 150N 1K54 220P 100N 9K76 68N 33K 1K54 220P 14 PIN SCKT 100N 275V 22N V V LIMABLE RIGHT RSPOST RSIG LSPOST LSPRE RREF AP2020 AP4020 AP4040 RSPRE LREF M1129 LEFT...

Page 19: ...K M1129 Database History CONVERT TO PCAD2002 PC 6944 ROUTE GAUGE PC 6914 ADD TARGETS AUG 15 2005 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...

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