Ampeg BA115A free download

File name Ampeg ba115a bass amp.pdf

A B U5:A +16V TLO-72 D10 1N914 R62 C37 .047 uF 100V U5:B R60 220K R63 4.7K C36 1 uF 50V C C32 .001uF 100V R58 47K C30 .0047 uF 100V R57 22K R52 22K D E F R55 47K R54 22K C27 .22 uF 50V RefDes R53 47K IC1 IC2 U3 U4 U5 Power Table -16V 4 4 4 4 4 +16V 8 8 8 8 8 1 J1 T/S C35 .047 uF 100V 1 22K D13 1N914 TLO-72 R67 10K R48 22K C26 .22 uF 50V R65 100K -16V C41 C33 .047 uF 100V R47 47K 5 4 CW 100 PF SWITCH 3 CMN U4:A 50V 2.2 uF J2 T/S 200V R32 PAGE_NEXT 1K C42 56 pF 200V R64 2.2K C34 2.2 uF 50V CW P1 50K RA S1 TLO-72 R45 47K R56 47K C25 .22 uF 50V R36 22K C45 CCW R29 100K C29 .015 uF 50V R27 47K C28 .22 uF 50V R46 J13 2 J14 J12 22K R38 22K 2 J15 J11 R51 2.2K R40 4.7K C23 .033 uF 50V C22 .033 uF 50V R39 100K U4:B R30 TLO-72 22K .22 uF 50V R37 22K C24 FC1 F1 FC2 J18 J6 J16 R1 D1 RED J19 J10 J17 J22 3A DIODE BRIDGE BR1 C6 4700 uF 50V C14 4700 uF 50V J9 2.2K 1/2W +40V R68 +16V C19 .1 uF 100V 270 5W D11 1N5353B 16V C39 100 uF 35V C3 .0033 J8 3 C1 .0033 J7 J20 -40V C38 .1 uF 100V D12 1N5353B 16V R66 270 5W C43 .047 uF 100V C21 .047 uF 100V C18 .047 uF 100V 3 C40 100 uF 35V -16V J13 BLK AC LINE J13 BLK AC LINE J17 BLK J12 AC LINE AC NEUTRAL BLU/WHT J17 BLU/WHT J13 BLU/WHT J16 J7 BLUE WHT J12 J14 BLUE WHT J12 J14 BLUE WHT 1 0 0 REV 7/28/99 7/01/99 7/01/99 Date SWAPPED J21 PINS 1 & 2, COONECTED J21 TO HEADPH GS TO DETACH FROM MAIN GND CONTROL ISSUE CONTROL ISSUE N00062 R990512-01 ECR00047 Ecr(s)/Ecn(s) REM REM Appvd by Date CAUTION: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. DESCRIPTION Chgd By THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC J11 BROWN J15 BROWN J15 BROWN Drawn: Signatures: OK Checked: Date: 1/14/99 11880 Borman Drive, St. Louis, MO 63146 4 NOTES: 1) CAUTION: SHOCK HAZARD!! THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER. J17 GRAY J11 GRAY J11 GRAY First Used On: 4 Released: BA115a Drawing Title: Tolerance: J9 VIOLET AC NEUTRAL J7 VIOLET AC NEUTRAL J7 VIOLET Drawing Size: C NONE 2 Drawing Type: Schematic Class Code: Sheet 1 of SCHEMATIC -BASS AMP Drawing Number: 07S103-XX F A B C D E A B C D E F +40V R8 1K 1N914 D3 1N914 D5 1N914 -40V R4 1K +16V +40V 1 R7 3.3K 1/2W PAGE_NEXT D S R34 220 D7 1N4744 ZENER D6 1N4744 ZENER 1 D2 1N914 D4 VTL-5C7 R6 3.3K 1/2W R50 1K C31 -16V R59 50V 1 uF 1M R33 47 Q4 MJE-340 Q6 G Q2 U2:A TLO-72 C8 CW C9 10uF 35V J112 C12 R20 CW 10uF 35V C10 C44 P3 C16 56 pF 200V R24 47K P2 R14 100K 20K RA CCW 100K U2:B