Table of Contents
Advertisement
3 000
HIGH EFFICIENCY STEREO POWER AMPLIFIER
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
SERVICE MANUAL
Quality and Innovation Since 1963
Printed in Canada
VERSION 1.50 October 1998
Advertisement
Table of Contents
Related Manuals for YORKVILLE AudioPro AP3000
Summary of Contents for YORKVILLE AudioPro AP3000
-
Page 1: Service Manual
3 000 HIGH EFFICIENCY STEREO POWER AMPLIFIER 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... - Page 2 IMPORTANT SAFETY INSTRUCTIONS AUDIOPRO AP-3000 SERVICE MANUAL M1012 “THE INPUT BOARD” The input board processes the audio signal from the input jacks to the voltage amplifier board, (M1011). Each channel consists of a balanced gain stage, defeatable bass boost filter, and a preemphasis filter network. INSTRUCTIONS PERTAINING TO A INSTRUCTIONS RELATIVES AU RISK OF FIRE, ELECTRIC SHOCK, OR...
- Page 3 SHUTDOWN CIRCUIT: The audio signal on the output of U1 enters U3 through R43 and RV1. Under normal operating conditions the gain of The last circuit on board M1011 is the shutdown relay and its associated drive circuitry. The relay circuit has two U3 is 1(0dB).
- Page 4 QUIESCENT CONDITION: This design is class A/B and therefore the output driver transistors must be forward biased to provide low crossover distortion. In most class A/B designs, a diode chain or VBE multiplier is used to control the bias voltage and provide a means of adjusting the bias.
- Page 5 The voltage between the amplifier?s output and test point 4 is approximately 14.7VDC derived from the voltage drop across ZD3 @ ZD4. We call this voltage the “floating battery” because it floats on top of the output audio signal with point 4 always being 14.7VDC greater than the peak of the output signal.
- Page 6 EMS Circuit Identifying Defective Boards in the AP-3000 The Energy Management System circuit only applies to North American line voltage products. A North American AC STEP 1: VISUAL INSPECTION OF FRONT PANEL AND FAN receptacle can provide 1850 watts before the wall breaker would trip, but how can a amplifier provide 2 x 1200 watts out when only 1850 watts is avaliable out of the AC receptacle? A sinewave source connected to the amplifier driving A.
-
Page 7: Specifications
• All values are rounded down to the nearest 25 watts Molex connector parts are available or order them from the Yorkville Service Parts Dept. With the test connectors connected to every board, slowly variac up the line AC voltage. - Page 8 AP3000 Parts List 10/27/98 YS # Description Qty. YS # Description Qty. YS # Description Qty. 6405 RED 3MM LED 1V7 5MA BRIGHT PACE 3590 12.0 AMP SWITCH BREAKER WHITE 4824 1/4W 1K5 5% T&R RES Identifying Defective Boards in the AP-3000 & AP-3400 6410 GREEN 3MM LED 1V7 5MA BULK BRT CLR 3822...
- Page 9 WARNING: 200 VDC IS BETWEEN THE POWER SUPPLIES. -55V THIS PRESENTS A SIGNIFICANT SHOCK HAZARD. AUDIOPRO_AP-3000 PLEASE, USE EXTREME CAUTION WHEN SERVICING! DATE: JAN/14/98 MODELS: SCH ISSUE: 8.10 YORKVILLE NAME: M1002.SCH PCB#&VER: M1002 TITLE: PWR_AMP LEFT ACTIVITY M1011.SCH_DATABASE_HISTORY L_LEVEL RIGHT ACTIVITY...
- Page 10 MPSA06 R55,R51_249R->220R0 R40A,R35A 470R->16K R37,R38 8K2 OCT/28/97 1.60 PC#5498_M1002 -100 -100 10000u ->16K R34,R50 249R->270R C26,C27 10u->22N R52,R53 1N4004 0R1->0R15 R11,R12,R14,R33,R49TO FLAMEPROOF AUDIOPRO-3000_AP-3000E PC#5497_M1011_R66A/B_1/8W->1/4W DATE: OCT/28/97 MODELS: SCH ISSUE: 1.60 -55V -55V 1.70 YORKVILLE NAME: AP3000.SCH PCB#&VER: M1002/M1011/M1012/M1013/M1013E TITLE: AP-3000...
- Page 11 PRODUCTION NOTES M1002 AP-3000 SHEAR SHEAR MOUNTING DETAILS FOR 5W _WC7 ADD #8629 SPACERS ONLY ON 5 WATT RESISTORS YS#6900 YS#6900 YS#6900 R29, R29A R45 AND R45A YS#6900 MOUNTING HARDWARE FOR Q5 MR854 MR854 MR854 MR854 #8871 4-40X 1/2" BOLT YS#6900 YS#6900 YS6900...
- Page 12 " GUIDE B L A N K S I Z E = 1 6 . 0 0 0 " X 1 1 . 0 5 0 " " ETCH M1011 " S O L D E R S I D E M 1 0 1 1 - 5 . 1 0 "...
- Page 13 ASSEMBLY M1012-2.10 BLANK SIZE=15.700"X10.000" PCB MECH M1012-2.00 GREY_BUTTON 0 " 0 " GREY_BUTTON A_BAL_INPUT B_BAL_INPUT BUT2 PT#3660 PT#3660 SWITCH/S PART# UNBAL_IN_A UNBAL_IN_B ARE #3436 BUT1 BREAK TJH1 BEFORE #3436 MAKE!!!! #3436 33078 33078 BLK 13" 16AWG 16AWG FUNCTION TJH2 AP-3000 LINEWIDTH GAUGE M1012...
- Page 14 M1013 " GUIDE " GUIDE " ETCH " ETCH " " " " M1013.PCB_DATABASE_HISTORY T-BRK MODEL(S):- M1013 AP-3000 DATE VER# DESCRIPTION OF CHANGE TJH2 JUN/23/94 2.21 PC#4529 R115,R116 22K TO 27K - R109 ZD13 20V TO 33V FUNCTION SEP/20/94 2.21 PC#4576 WC11 WIRE DBL INSULATED 4148...
Need help?
Do you have a question about the AudioPro AP3000 and is the answer not in the manual?
Questions and answers