Ampeg svt 6 pro preamp 07s115 schematics

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4-18-05- - A C - Plot Time: Drawn: REV Sheet INITIAL ISSUE - - of 2 2NONE8/17/04 Date: Ecr(s)/Ecn(s)- Appvd by Date 5 4 A A B B C C D D E E Plot Date: Checked: Released: F F - G G 5 4 31 2 SCHEMATIC - PREAMP3 1 2 NOTES:Date Drawing Number: Class Code: Drawing Type: Schematic 1901 Congressional, St. Louis, MO 63146 REM ST. LOUIS MUSIC, INC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Chgd By DESCRIPTION AND 10 MEGOHM DIGITAL VOLTMETER. 1) CAUTION: SHOCK HAZARD!! TOUCHING INTERNAL PARTS. CAUTION: Tolerance: Drawing Title: First Used On: Drawing Size:- Signatures: Tue Apr 26, 2005 07S115 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED4-18-05- - A C - Plot Time: Drawn: REV Sheet INITIAL ISSUE - - of 2 2NONE8/17/04 Date: Ecr(s)/Ecn(s)- Appvd by Date 5 4 A A B B C C D D E E Plot Date: Checked: Released: F F - G G 5 4 31 2 SCHEMATIC - PREAMP3 1 2 NOTES:Date Drawing Number: Class Code: Drawing Type: Schematic 1901 Congressional, St. Louis, MO 63146 REM ST. LOUIS MUSIC, INC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Chgd By DESCRIPTION AND 10 MEGOHM DIGITAL VOLTMETER. 1) CAUTION: SHOCK HAZARD!! TOUCHING INTERNAL PARTS. CAUTION: Tolerance: Drawing Title: First Used On: Drawing Size:- Signatures: Tue Apr 26, 2005 07S115 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL.AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED TO POWER AMPTO POWER AMP 213J4 XFRMR L/O BAL R59221.0 1/8W 1% R58470 PRE EQ R63100 1KR84 R941.5K C34 .1 50V C35 22 35V TO SHEET 1 R5439K C39 .22 100V R73470 470KR76 1KR86 R961K R5268K CW P1350K L LEVEL 4 CW P1150K L LEVEL 2 CW P1050K L LEVEL 1 D11 1N914 75V PIV .047C49100V C40 .0022 100V 1KR87 R511.1M R99470 .015C47100V C43 .0015 100V 1KR85 R102250 10W 5per SLVE_SWSLEEVE TIP_SW RINGRING_SW TIP J5TUNER OUT #2 #8#7 #9 #44:1 T1 1:1 .47C46100V C36 .1 50V D14 1N914 75V PIV 65 7IC3:B TLO-74 D15 1N914 75V PIV C42 .1 100V .15C48100V 22KR81 CW P1250K L LEVEL 3 C57 100 pF 200V D12 1N914 75V PIV C58 220 350V 1KR79 CW 1M AP15 TUBE GAIN C62 330 100V 1234 J10 SLVE_SWSLEEVE TIP_SW RINGRING_SW TIP J6 L/O BAL/UNBAL 123456 J7 PULL = GND LIFT POST EQ TO SHEET 1 EQ SWITCH -16V DIRTY GND-65V 300V R55220 R60221.0 1/8W 1% O C IS6:A PRE/POST 1KR80 C45 .033 100V C41 .015 100V POWER D21 GRN C37 .022 50V C38 22 35V R724.7K R82470 R1001.1M 65 7IC4:B TLO-74 23 1IC4:A TLO-74 22KR83 R97680K C56 100 pF 200V 50V C501 1312 14IC3:D TLO-74 CW 1M AP8 1 KHz - 6 KHz 910 8IC4:C TLO-74 TO SHEET 1 TUBE GAIN +16V 20mV p-p ripple -25 VDC CW 10K AP4:A LINE OUT LEVEL O C IS6:B PRE/POST 0 VDC 180mV p-p LINE OUT BOARD ( BREAK-OFF) C44 .033 100V 470R78 1312 14IC4:D TLO-74 CW P91M A 30-150 Hz 910 8IC3:C TLO-74 CW 50K AP6 MASTER VOLUME 0 VDC .1 VAC p-p 470R77 CW P51M A 600-1 KHz 23 1IC3:A TLO-74 R9310K R9512K 0 VDC .6 VAC p-p R5327K R9810K 2W 10K AP4:B LINE OUT LEVEL 123456 J8 1234567891011 J9 FOOT SWITCH EFFECTS RET EFFECTS SENDPREAMP OUT TUBE BOARD ( BREAK-OFF) CW P71M A 150-600 Hz MUTE FOOT SWITCHSIGNAL GND 0 VDC .65 VAC p-p