Ampeg svt 5 pro preamp overdrive 07s565 schematics

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A B c D E T F
RM NJMZOSUD
I825 a DEB
LI
OVERDRIVE CHANNEL BREAKOFF IA?»
one i
R475
mm
w R515
Im a a TCT a A
on INPUT 85 I . 7 CUB 3 ' (3275 WA
22:25:: 2 NJMZDSDD m 255 CM Q; '7 me a
N 5 WV va-I NJMzosaD
MW e NEVA m :2 Des J
45v 9 r15VA 03B 5 1'75 i
swmA NE A 7
0" R255 D3 RUB m n 5
mm m e 7 12K mm mm
0D FX SEND W756 m TN756 5 EV 5 EV C255 R355
5 5 GEE NJMZDEOU
W FX WW RM mg I- pm
on OUTPUT 7 0 WW
W 47on mnv REE I:
TO MA ME Imv : a man mm
(BASS PREAMP A) H 9? D ICEE c
II .m C235 m
mu or II
zmv H ~
R235 RISE 15" A 55;: >4
GAIN , NJMZUSDD
FREQUENCV
22K 22K Rm c205 (:sz V
R215 BOOST 13K 7 5
m @
RZEE P33 FIST E
mm d AR W WA 12 mm
SWZE B W MD
ma" M
W E, : W PuwerTane
WW LW Heme: HAVA A I EVA WVA TEIVA
ICVE t n
VTSVA WA ICEE 6 n
mm
W TEST POINT CONDITIONS
W R53 m D AC DC 1 KHZ 35 v INPUT SIGNAL
m TIP VOLTAGE VOLTAGE WAVEFOFM CONDTONS 1 m 5 ASSEMBLY PART NUMBER 077566701
Imam: 2 CLEAN GAIN. VOLUMES. MASTER @ 10 ASSEMBLY DWG NUMBER 077566vXX
OD LEVEL TP4 I2V 3 OVERDRIVE GAIN, TONES @ "5"
p53 E 4 BUTTONS "OUT"
p s m TF4 0V MUTE BUTTON N 5 TEST POINT 0N 07565~XX SCHEMATIC
Bus 055 I;
W n75 . 7% I 3V pp 0V
TPs 5.5V pp 0V
TP7 09V 99 0V
0 10mm CONTROL TSSUE
TP7 .BV pp 0V QU BOOST BUTTON IN" A 7,251. NmALIssuE
. REV Daxe DESCRIPTION Ecr s /Ecn 5 Ch :1 B A m D Date
CAUTION. TM 2 2V pp W I I I ) g y up It
THIS SCHEMATIC IS PROVIDED FOR USE Bv OUALIPIED PERSONNEL. TDEPF m: mspRVAnongpMmgmgwm DRAWING IS PROPRTEIARYIO
To AVOID RISK OF ELECTRIC SHOCK. REFER SERVICING TO OUALIPIED
SERVICE PERSONNEL DO NOT PERFORM ANV SERVICING BEVOND Tpg .SV pp Dv Signatures: Date: m
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. WDDDF .
Drawn: WFB 5 5/01 IIBBD flnmmn DIIVC. SI Lam: MO 53146
NOTES: rpm V pp 0V PUDF CHAN, SELECT BUTTON IN Checked: Fm Used 0":
I) CAUTION SHOCK HAZARDII neeased. SVT5PROa
2w;UENBRENJAIIREBPREDISIASERESPECTPM ' .
TOUCHING INTERNAL PARTS le DB|E,Wefl cm 31 2mm DTawIng Slze: C Drawma We» BASS PREAMF B
2 UNLESS NOTED RESISTOR VALUES IN OHMS "ML. 5% TOL anm W .5 22 Drawin T : Schamalic
)CAPACITOR VALUES IN MICROFARADS SUV-I TF'H 0V GATE BUTTON "IN" WO 99' cl acype NONE Drawing Number
3 VOLTAGES ARE MEASURED WITH 1 MEGOHM OSTCILLOSCOPE - ass ode= -
)AND 10 MEGOHM DIGITAL VOLTMETER. Tolerance. 07S566-XX
Sheet I M 2
B C D E F

A

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Hus ' OCTAVE IN RING H
D55 D75 R555 JZDB 501: Y CLEAN'MIX OUTPUT

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In W W AuDIOGND
REE VIP CLEANEIMIX
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JBE POST SELECT OUTPUT a

me a PLEAN FX SEND TO JSA
BASS PREAMP A", V SLEEVE

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LIN E O UTS
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CHANNEUCOMBINE FS
ma m
m on PS GND SWITCH , m m ,
R298 up OD FX SEND COMBINE F5 ENG (- H! -w
2 M a 5, COMBINE FS RING SWITCH (- W
SWAN CHANNEL ES TIP {- I
-5LEVE CHANNEL FS TIP SWIICH <-
LZB V DIRTY GND 5 4m 1
FERRIYE V J95 DIRTV 6ND V (335
R275 (395 Hp OD FX RYN DIRYV GND 5
, I I I
JWB ::C35 2 2K 21 TIP 5)) V IO J7A 025
WNER OUTPUT 7 Z2 5va 5w (BASS PREAMP "A") fii¥
PRE DAL OUTPUT xg7
CLEANFXSEND <- 3 MIX/SEPARATE BREAKOFF
CLEAN FX RETURN
PRE AUDIO GND 5 WW
OD FX SEND 5 SW38 A
on FX RETuRN I
CLEAN EAL OUYPUY 5 LIB
ODBALOUTPUT 9 {mm ma
AUDIO (3ND ,
EIAMP LOW FREQ ouTPuT RSB
m L I
BIAMF HIGH FREQ ouTPuT SW33 E A
70 m
(BASS PREAMP "A") WE K
22K
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To MA m 6ND LIFT
(BASS PREAMP "A") V Innv
ma
m- LOW om
m 0 WW mmsus
1 W m. $7 A wee/m INmAl ISSUE
CAUTION: mm H REV DaIa DESCRIPTION EcrIsVEcnIs) (2th By Appvd by Dale
THIS SCHEMATIC Is PROVIDED FOR USE BV QUALIFIED PERSONNEL m5 THE INFORMAVION§Oram§§RngmE DRAWING Ia woman vTo
TO AVOID RISK OF ELECTRIC SHOCK. REFER SERVICING To OUALIFIED
SERVICE PERSONNEL DO NOT PERFORM ANV SERVICING DEVOND Signaiures: Dale: W
THAT ExPLAiNED IN THE OPERATING INSTRUCTIONS,
D'aw": WFB 5" 5/0 11380 Emma" DIWE 5| Louis, MO 63105
NOTES: Checked: First Used On:
I) CAUTION: SHOCK HAZARDII ME Released, SVTSPROa
THIS DUENgUCON'JéINESRHSAééfiREig?)}/soclflfiggégESECFOOIIANEECT POWER RSB a HIGH our > _
TOUCHING INTERNAL PARTS. Flo! pm Wed on: m: 2am DTawing Size: C Drawmg Tllle- BASS PREAM P B
2) UNLESS NOTED RESISTOR VALUES IN OHMS I/Aw- 5% TOL. sw's sw Pim'l'Ime mm Drawing Type: Schematic
CAPACITOR VALUES IN MICROFARADS SUV-10% TOL . .
3) VOLTAGES ARE MEASURED WITH I MEGDHM OSCILLOSCOPE . Tolerance: Class Code: NONE Drawmg Nuruber»
AND Io MEGOHM DIGITAL VOLTMETER. Shem 2 a, 2 078566-XX

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