Ampeg svt vr power supply pi 07s792 schematics

Page 1

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CAUTION.

TRIS SCREMATIC IS PROVIDED FOR USE av QUALIFIED PERSONNEL,
TO AVOID RISK OF ELECTRIC SHOCK REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL DO NOT PERFORM ANY SERVICING BEVOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS

NOTES
I) CAUTION SHOCK HAZARDII
THIS UNIT CONTAINS HAZARDOUS VOLTAGE DISCONNECT POWER
AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE
TOUCHING INTERNAL PARTS

D23
warm:

D20 1;
Warm

aALoUrLEVEL

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250 VDC CIA
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ASSY PART # 07-792-01

CALIBRATION PROCEDURE

ADJUST EACH BIAS CONTROL
(FI. P2) SO THAT ASSOCIATED
GREEN LED IS LIT.

WITH 40 HZ 25 VRMS SIGNAL
OUT. ADJUST BALANCE CONTROL
SO THAT ASSOCIATED YELLOW
LED IS LITV

ALLOW UNIT TO WARM UP FOR 23 MINUTES.

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SCHEM- PWR AMP/SUPPLY

2) UNLESS NOTED. RESISTOR VALUES IN OHMS, mwrsm TOL mm rm Ia AS I1 DraerIg Type Schemahc
CAPACITOR VALUES IN MICROFARADS anrIua/D TOL Cl C d NONE Drama Numbev
a) voLTAGEs ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE - ass a 2
AND 10 MEGOHM DIGITAL VOLTMETER Tolerance. 078792
Sheet 1 0| 2
A B c D E I F