Ampeg ba 210spa 07s263 schematics

Page 2

A B C E F
as
mm
m as R};
m TN:7¢EIARL 3 fig
w
R50 "5 R33 Irgu
IK
cm "5W 7 NW IRFPrQMER
5 I:
O4 02
R7I
MJEVBAU 47 0W 5 IRFPrSI 65R
35V 5
07
RM R23
22a 3 a
I «5w 5%
CIT
I
US'A m, umv
NESSBZ m2
R35
22o
«m
5
OS
MPSVADE 05
OT Rag E D i
G : IRFFVMUR
129 MJ E7350 #7 I 4W 3
5
e cf 05
H I 5W R7U D
<~ I? IRFFVIADR
T 7 5
e 7 ISM
Hi BIAS MUST
e " HPGS SEE NOTE I 3w
IK
FRDM PREAMP R42
m m
NOTE: SET BIAS VOLTAGE FROM COLD START £34 W354
ACROSS R72 - R75 , 15 -2| mV DC 5 5
AVERAGE, NO SIGNAL NO LOAD.

CAUTION

THIS SCHEMATIO IS PROVIDED FOR USE Bv QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK. FIEFEFI SERVICING TO OUALIFIED
SERVICE PERSONNEL, DO NOT PERFORM ANV SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS

NOTES:

I)OAUTION SHOCK HAZARDH
THIS UNIT CONTAINS HAZARDOUS VOLTAGE DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUOHING INTERNAL PARTS,

2) UNLESS NOTED. RESISTOR VALUES IN OHMS. II4W-5% TOL
CAPACITOR VALUES IN MICROFARADS SIN-10% TOL

3) VOLTAGES ARE MEASURED WITH I MEGDHM OSCILLOSCOPE
AND Tu MEOORM DIGITAL VOLTMETER.

TEST POINT CONDITIONS NOTE :
I KHz INPUT SINEWAVE 300Vrms 9 0 dB
INF'UT JACK.

IZOVAC LINE, VOLUME & LEVEL 8 '1 O'

TONES a '5' , DC VOLTAGES WITH NO SIGNAL APPLIED.

p

TPI THRU TPII
AC Vrms

/

TPTZ THRU TPT5
DC VOLTS pip power
Supply RIPPLE voIIages

@

0 mm. comm Tm REM
B 12/12/00 mum/nus man OHM RDDSZI REM
A mm, mm ISSUE
REV DaIe DESCRIPTION EcrIs)/Ecn(s) Chgd By Appm by Dale
m: INFORMATIONSOOLrgNEmngwE mwwe IS PROPRIEI RV m
Signatures: Dale: figfim
cm W 500 man Human Dnve. SI Laws. MO sans
Checked: PusI Used On:
RBIeased: BA21OSPa
meme TueFeD27 2am Drawmg SIzE C Drawmg TIIIe
mum my .5 memg Type. Schema SCHEMATIC -BASS AMP
. CIaSS Code NONE Drawmg Number:
Tolerance. 073263-XX
Sheet 2 ol 2

A I n

I: