Crate BV 300H Power Amp 07S110 Schematics

Page 1

R48
003
82° PSATa 100K INQM @
i 75! PIV
I CV6 DEGND 37;
50 260ch NEW
R12
V'TLVSCS 1:2W CB
per I, 50 pF II
R43 002 133 C5 500V _\ 400V 1:02:
N LoDP 0N T 9
+15V 03 x\ , 400V 470 R20 P2
R39 SWI J; I BK %
SERIES/ PAR R16
m 001 SW R45 .503 TM m g m
100K D55 52
X M 1N307DTFI w
VTL»ECS 2 7
100K 50V RETURN LEVEL
R15
R
J25 , 1:0 10K L RETURN 325v
m i 4P, SLVLSW
a I SEND LEVEL 7
7 T TO SFKR our BD m L "P ,
H "PAW ms
E 5 , SLVLSW ,
94-15v D'GND ' ' R65 _
nsv 45V
eM J33 SEND 470 m
_ IMW + 034 mw
%7 F Spar 220 Spev l
l_ev DECOUPLING FOR ICI _ 16V
m 019 DMD J21
R52
J13 VDC INADD7TR DEGND 47 i 2 FAN 2
TO OUTPUT XFMPIZEI-~- 5W +15v (:32 +
J D6 D7 FlL/IMEEII XFMR INADDETRE ngzTg 100 :26
TO PWR XFMR 5" 5 250v DEGND
INADD7TR INADD7TR 47K 4 021 V
5W R80
D5 m3 Spev R55 3 1N4007TR an 5V
INADO7TR 1N4007TR 4:5 47K 9 5w 4: C26
I 47 DEGN +024 A 220
D12 + F __ D27
D9 450v R56 020 E A
WMOWR WWW; 220K A m 419 631 D22 32526 IN4744ARL ISV
DII 1W 450V
+F
DreND INADD7TR INADO7TR 015 DFGND y? Nwom DEGND 525:: 529 i:
A 47 R57 025 427 £1406 13?);
J 13an 233K 9020237 INABWBZRJ: D25: 7:025 INUMARL Nfie
TO PWR XFMR IE- DGND 450V mm 22D 15v
% _=C21 D24 35V R61
J16 D17 + 100 . 7
450V R59 30 715V
TO PWR XFMR I-P' 43 mmmm 5W R63 m
m5 INADD7TR 22;; C32 .
INADO7TR 5per f 96; 27 (233-ij
as A 1000 FAN I
DID D14 35V DEGND
1N¢OO7TR
DEGND 4N7 TEST POINT CONDITIONS: v
J17 1N4007TR -
TO FWR XFMR CEI-~- 120V LINE VOLTAGE 4 OHM LOAD 1KHZ INPUT
D26 ALL DC VOLTAGES MEASURED WITH NO SIGNAL APPLIED. .
1 9/16/02 CHGGFIZRARS R7 H1&R1 N00973 REM
Imam EFF SEND 3. RETURN @ '10'. PARALLEL SELECTED. FROM77'22°' T078°"2
CHANNEL 1 SELECTED. 0 5/20/02 CONTROL'SSUE
I .
CAUTION' EEFAfiEIEE fSREEL-lI-EléBI-IEL? 10 ' PARALLEL SELECTED' FIEV Dale DESCRIPTION ECr(S)/Ecn(s) Chgd By Appvd by Dale
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. I THE NFORMAT'ONSCTOEgfiIgflUgTCTmE DRAWING 5 PROPHET/70
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED '
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND Signatures: Date:
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.
BIAS NOTE- Drawn: REM 5/25/01 11250 Barman DTIVe, SI. Lows. MO 63146
NOTES: _ Checked: FirsI Used On:
1) CAUTION: SHOCK HAZARDII TO ADJUST BIAS Released. BV300a
THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER ALLOW UNIT TO WARM UP FOR 20 MINUTES '
TgagfifingngNvfifigfingéy IS DISCHARGED BEFORE ADJUST BIAS 1 FOR 115mV @ T.P.1. PIolDaIe Mon Sep 16 2002 Drawmg Size: C DrawngatlfiEM TUBE PWR AMP
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4w75% TOL. ADJUST BIAS 2 FOR MINIMUM HUM WITH ALL PIDITIme. 15:07:59 Drawing Type: Schematic '
CAPACITOR VALUES IN MICROFARADS, 50V40% TOL. CONTROLS @ '10' . _
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE ' Tolerance: Class Code: NONE Drawmg Number.
AND 10 MEGOHM DIGITAL VOLTMETER. Shem 1 of 2 0731 10-XX

Page 2

sea
VDC NOTE; INSTALL VI- V6 RESPECTFULLY INTO TUBE SOCKETS
JI . J6 USING POWER TUBE 6550A.
\\ J22 TRANSFORMER
BLU/WHT
TO SHEET 1 +380V' 1
L2
:IERRTE R FERRITE L3
2 7, D4
100 FEHRITE R6 A INADWTR
2 R4 100
IUD 2W
2W
T
8 PIN OCTAL SOCKET
5 8 PIN OCTAL SOCKET 8 PW OCTAL SOCKET
3 I D5 i
INdOOTIFI
R5
RI
47K 45; ("15v
2% 15:: sue,
I029
APPROX J32 R38 1N4007'IFI
439an T.P. 1 ,-:1
w aw 2
DRIVE+
TO SHEET 1 J31
T.P.2 1-;
R37
D30
7 IN400TIFI
TO SHEET 1 -
5070 R11
2w va
D31
!1N4OOTIFI
J4
R9 a PIN OCTAL SOCKET J5
47K RIG 8 PIN OCTAL SOCKET 8 PIN OCTAL SOCKET
IMW 47K
Spar I/AW
Spar L5 L5 032
L4
FERRITE FEHWTE FERRTE l INADD7TFI 3
FROM FILAMENT
TRANSFORMER m
J23
% m TRANSFORMER
\ BLUE
VDC
sea -
1 9/16/02 ESSWZEEZ??S§$AI€IQI News HEM
0 5/20/02 CONTROL ISSUE
CAUTION' REV Date DESCRIPTION EC'(S)/ECH(S) Chgd By Appvd by Date
THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. THE INFOHMATIONSCTOLNgQIgfiADUgIICng DRAWING '5 PHOPRIETARV T0
TO AVOID RISK OF ELECTRIC SHOCK. REFER SERVICING TO QUALIFIED _
J24 J25 J26 J27 J29 J30 - /
SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND SI natures: Date:
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. . c . c c . 9
Draw": HEM 5/25/01 11550 Barman D11 .Sc Lows, Mo 53145 4
NOTES: LAMP LAMP LAMP LAMP LAMP LAMP Checked: First Used On:
1) CAUTION: SHOCK HAZARDII Released. BV300a
m3 BUEN'STUBNJJ'WNESJRRR380135225;3ERR? POWER '
. - - . D T'tI :
TOUCHING INTERNAL PARTS. PIuIDaIeMun Sep 16 2002 Drawmg Slze. C [QWECIIZEM- TUBE PWR AMP
2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W»5% TOL. PIoITIme: 15:05:82} Drawmg Type: Schematic
CAPACITOR VALUES IN MICROFARADS, 50V»10% TOL. _
3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE Tolerance: Class Code: NONE DTEWW Number- 0751 10 XX
Sheet 2 of 2

AND 10 MEGOHM DIGITAL VOLTMETEFI.

E

A