Crate BT 220H Preamp 07S662 Schematics

Page 1

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THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. PM Table THE INFORMATIONSCDPJGIIgEDJgnéIT-IHIS DRAWING Is PROPRIET Rv T0
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED R , D D . (T ) P k WV C GND 45, SW 4% HM _.5VX . 2 , LA:
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND U: as 332:5? 55E? 5 ' 4 Signatures: Date: WM%¢M
THAT EXF'LAINED IN THE OPERATING INSTRUCTIONS. U4 370720I_ BDIP_3 5 4 4L
D5 37e720I_ BDIP_3 5 4 Drawn: 3 619'03 1901 CongressIonaI. St. Louis. Mo 63146
U6 370720I _ BDIP_3 B A _ ' -
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TOUCHING INTERNAL PARTS. m2 3mm, MW} 7 M PIoI DaIeMon May 17,2004 Drawmg Slze- C 9 BASS PREAM P
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4w-5% TOL. PlotTIme= =15 Drawing Type: Schematic
CAPACITOR VALUES IN MICROFARADS, SUV-10% TOL. _ Dram" Number.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE Tolerance: C'ass cwe- ONE 9 ' 078662
AND 10 MEGOHM DIGITAL VOLTMETEFI. Sheet 1 o, 2

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CAUTION:

THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL.
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.

NOTES:
1) CAUTION: SHOCK HAZARD!!

THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER

AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE

TOUCHING INTERNAL PARTS.

2) UNLESS NOTED, RESISTOR VALUES IN OHMS, HAW-5% TOL.

CAPACITOR VALUES IN MICROFARADS, SUV-10% TOL.
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE

AND 10 MEGOHM DIGITAL V0

LTMETER.

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250v;
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REV Date Chgd By Appvd by Dale
THE |NFORMATIONSQOINJGIIQIERJ8%EHJS DRAWING IS PROPRIETARV TO
. . f M / ff ,
Signatures. :flflfiFQ/ggm 7%;7
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Draw 1901 Congressional. 51. Louis. MO 63146

Checked:
Released:

Plot Date:Mon May 17. 2004 Drawing Size:

PIotTime: 13:I6:29 Drawing Type: Schematic

BASS PREAMP

Tolerance:

Drawing Number:

Sheet

078662

A

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