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SR-6520 / SR-8520 /P / PD

POWERED MIXERS w/ DIGITAL EFFECTS

SR-6520P p/n 071-6521-100 (120V)
SR-8520P p/n 071-8521-100 (120V)

SR-6520PD p/n 071-6521-200 (120V)
SR-8520PD p/n 071-8521-200 (120V)

SERVICE MANUAL

CONTENTS:

Notices
Specifications
Circuit description
Parts lists:

Preamp PCB assy
Front panel assy
Pwr amp PCB assy
Rear panel assy
Cabinet assembly
Miscellaneous
Dig rev cntrl

Schematics
Service diagram

Fender Musical Instruments Corp.

7975 North Hayden Road Scottsdale, AZ 85258

SR-6520P/PD  SR-8520P/PD

(These are the model names for warranty claims)

MARCH 1998

IMPORTANT NOTICE:

The information contained herein is CONFIDENTIAL and PROPRIETARY to Fender Musical Instruments Corp. It is
disclosed solely for use by qualified technicians for purposes of equipment maintenance and service. It is not to be
disclosed to others without the expressed permission of Fender Musical Instruments Co. All specifications subject to
change without notice.

For warranty repair service, only Fender specified part numbers are to be used. It is recommended they also be used
for post-warranty maintenance and repair.

Parts marked with an asterisk (

*

) indicate the required use of that specific part. This is necessary for RELIABILITY

and SAFETY requirements. 

DO NOT USE A SUBSTITUTE!

A coded naming convention is used in the description of certain parts. The codes and what they mean are as follows:

CAPACITOR  CODES                                                        HARDWARE  CODES                                                   

CAP AE

=

Aluminum Electrolytic

BLX

=

Black Oxide

CAP CA

=

Ceramic Axial

CR

=

Chrome Plated

CAP CD

=

Ceramic Disk

HWH

=

Hex Washer Head

CAP MPF =

Metalized Polyester Film

M

=

Machine Screw

CAP MY

=

Mylar

NI

=

Nickel Plated

CAP PFF

=

Polyester Film/Foil

OHP

=

Oval Head Phillips

PB

=

Particle Board

RESISTOR  CODES

PHP

=

Pan Head Phillips

PHPS

=

Pan Head Phillips Sems

RES CC

=

Carbon Comp

SMA

=

Sheet Metal "A" Point

RES CF

=

Carbon Film

SMB

=

Sheet Metal "B" Point

RES FP

=

Flame Proof

SS

=

Stainless Steel

RES MF

=

Metal Film

TF

=

Thread Forming

RES WW

=

Wire Wound

ZI

=

Zinc Plated

1

Summary of Contents for SR-6520

Page 1: ...al Instruments Co All specifications subject to change without notice For warranty repair service only Fender specified part numbers are to be used It is recommended they also be used for post warrant...

Page 2: ...4 CR37 and charges Capacitors C26 C29 all at once in parallel as a one pole filter through a single time constant of R52 X C26 27 28 29 or 3 9K X 8 8 F 34 3ms As they charge Q29 turns on and provides...

Page 3: ...together P2 to P3 along with some obvious cosmetic changes WARRANTY PHILOSOPHY ON DIGITAL REVERB MODULE Replacement rather than repair of the 041092 module is the recommended warranty procedure for f...

Page 4: ...999 RES CF 1 4W 150K 5 R114 1 025058 RES CF 1 4W 180K 5 R61 2 025059 RES CF 1 4W 220K 5 R51 59 PARTS LIST PREAMP PRINTED CIRCUIT BOARD ASSEMBLY CONT QTY PART DESCRIPTION REFERENCE DESIGNATION 2 029450...

Page 5: ...HEATSINK 2 025796 HEATSINK TO 220 U3 4 1 027404 IC 3080EA OTA U2 1 016795 IC DUAL OP AMP TLO72C U1 1 027387 INDUCTOR AIR CORE RDL 2 5uH L1 PARTS LIST POWER AMP PRINTED CIRCUIT BOARD ASSEMBLY CONT QTY...

Page 6: ...USHING SR 625X 125X37 64 WHT 220 240V PWR CORD 1 026541 CABLE ASSY POWER CORD 100V 120V 1 033331 CABLE ASSY POWER CORD 220V 240V 1 012473 FAN 115V 4 1 8 1 033576 GASKET FAN 4 9X4 9 2 032900 JACK PHONE...

Page 7: ...BOARD ASSEMBLY QTY PART DESCRIPTION REFERENCE DESIGNATION 1 041092 PCB UNIT DSP REVERB DIGITAL EFFECTS UNIT W OUT CONTROL BOARD 2 041818 BRACKET RT ANGLE DIG REV CONTROL BOARD MNT 1 041814 CABLE 10CKT...

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