Ampeg b 3 preamp 07s538 schematics

Page 1

MILES

1) CAUTIEINI SHEIIZK HAZARDII
THIS UNIT CEINTAINS HAZARDEIUS VEILTAGE.
2) UNLESS NEITED, RESISTEIR VALUES IN EIHMS,

DISCEINNECT PEIVER AND BE SURE PEIVER SUPPLY IS DISCHARGED BEFEIRE TUUCHING INTERNAL PARTS-
1/4V-Sz TUL. CAPACITER VALUES IN MTCREIFARADS. SUV-10% TEIL.

3) VEILTAGES ARE MEASURED WITH 1 MEGEIHM EISCILLEISCEIPE AND 10 MEGEIHM DIGITAL VEILTMETER.
4) CHASSIS GREIUND Ih

LED GREIUND <7

AUDIEI EREIUND 4:-

gga £: a

$5
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um v
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Ea4-E27, (:29, [330. D3. 135. D20, W J!
D21, D22, .14, .15, .16, .19, P16, P17, 1
TEST PEIINT CHART 1.14, as, as, 03, R1, R46, R49, R51, m Ears
mum 83%;.631181/ m; 2 $5593.33) R53. R59. Rso-Rs7. R73. :2. _ 9 m
11:11:: mum: a 'st PAH nur I MIT-USED 74M 11 nrxsvunu
VA-W 7 FX Rm
M2 IX:
1': VELTAE VELTACE mnmm 5 Farm
1 5 Fl sum
IllV n1 0V A FE LN: El"
2 32an av WW
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3 WV n-v W m 1 FE n
A new p-p nv :
5 12v F-p nv
5 [.3V v-fl 0V
7 [2] 9-D UV
SIGNATURES: DATE: 11350 BORMAN DR.
a 24v [11: av ST. LOUIS, MISSOURI
DRAWN: REM 07/16/98 63146
9 _
3:1w11v WHIE E1: EN/ErF CHK'D: GM 07/15/93 PROJECT NAME:
APF'D: GM 07/16/98 B3/B3-28
DRIGINAL ISSUED: 07/16/98 DRAWING NAME:
PLOT DATE 11/19/93 PREAMP SCHEMATIC
PLOT TIME: 05:59:37 Rag! 075538-02 REV 0_
FILE NAME: 55302h0- SCALE: NTS ISHEET: 1 OF 2
A a I: D © COPYRIGHT 5LM ELECTRONICS