Marshall Amplification DSL40CR Bedienungsanleitung

DSL40CR

BOOK-80015-01

M3390.069

SERVICE MANUAL

2DSL40CR service manual

BOOK-80015-01 | M3390.069

THIS DOCUMENTATION IS NOT FOR PUBLICATION AND IS FOR USE ONLY BY

AUTHORISED DISTRIBUTION AND SERVICE CENTRE PERSONNEL.

This document supports current producon units for the specied models in the

document. Units made before this me may vary. Where possible, variaons in

products are listed in this document. Units made to previous specicaon or design

should not be modied to current design unless specied by a company statement.

Marshall Amplicaon Plc reserve the right to alter and update this documentaon or

product without noce.

Marshall Amplicaon Plc reserve the right to supply equivalent or alternave parts for

spares orders.

Please contact Marshall UK for components not listed in this service manual.

DSL40CR

VALVES

4 x ECC83, 2 x EL34

CHANNELS

2, ultra gain and classic gain

POWER CONTROL

40W or 20W

EQUALISATION

Tone shi switch, treble, middle, bass,

deep EQ shi, resonance and presence

EFFECTS

Reverb (per channel)

SPEAKER

1 x 12” Celeson V-Type

SPEAKER OUTPUTS

5 x 1/4” jack sockets

(16Ω load/8Ω load/4Ω load)

OUTPUTS

1 x 1/4” jack emulated line out

Eects loop send/return

3DSL40CR service manual

BOOK-80015-01 | M3390.069

THE DSL40CR HAS BEEN DESIGNED WITH A 12” G-12 V-TYPE SPEAKER

FOR THOSE WHO NEED EXCEPTIONAL TONE AND FLEXIBILITY. WITH RICH

FUNCTIONALITY INCLUDING THE ABILITY TO MOVE BETWEEN TWO SOUNDS

WITHIN EACH GAIN CHANNEL, PLAYERS CAN EXPERIMENT AND RELEASE

THEIR PERSONALITY THROUGH SOUND.

Warning! Safety instrucons 4

Country idencaon codes 5

DSL40CR exterior 6

Amp assembly 7

Amp assembly tables 9

Voltage and waveform tesng 10

Front panel funcons 12

Rear panel funcons 14

Rear panel PCB 15

Main PCB 18

Main PCB - g. A voltages 21

Main PCB - g. A waveforms 22

Main PCB - g. B voltages 23

Main PCB - g. B waveforms 24

Main PCB - g. C 26

Main PCB - g. D voltages 27

Main PCB - g. D waveforms DFX1 28

Main PCB - g. E voltages 29

Main PCB - g. E waveforms 30

Main PCB - g. F voltages 33

DFX1 module PCB 35

DFX1 PCBPs 36

Component idencaon PCBP 37

Component side track PCBP 38

Solder side track PCBP 39

Spares list DSL40CR 40

Revisions 41

CONTENTS

WARNING! SAFETY INSTRUCTIONS

PLEASE READ THE FOLLOWING NOTICE IN FULL BEFORE ATTEMPTING TO REPAIR, SERVICE OR DISMANTLE ANY ITEM OF MARSHALL AMPLIFICATION PLC.

MAINS INPUT & FUSE

The specic mains input voltage rang

that your amp has been manufactured for

is indicated on the rear panel of the amp.

Your amp is provided with a detachable

mains (power) lead, which should be

connected to the mains input socket on

the rear panel of the amp. The correct

value and type of mains fuse is specied

on the rear panel of the amp.

Never aempt to bypass the fuse or t

one of the incorrect value or type.

PLEASE NOTE THAT FAILURE TO OBSERVE

THE CONDITIONS SET OUT IN THIS NOTICE

MAY RESULT IN DEATH OR SERIOUS INJURY

TO YOURSELF AND/OR OTHERS. IT MAY

ALSO INVALIDATE THE MANUFACTURER’S

WARRANTY IN RESPECT OF THE ITEM OF

EQUIPMENT CONCERNED.

1. The informaon contained in this

Service Manual (and in all annexes,

diagrams and documents aached

to or accompanying this Service

Manual) is intended to be used by

authorised Marshall Amplicaon Plc

service centres or by approved waste

electrical and electronic equipment

reprocessing and recycling centres

only.

2. All repairs and servicing of Marshall

Amplicaon Plc equipment

(‘Marshall Equipment’) should only

be carried out by suitably trained and

qualied personnel at an authorised

Marshall Amplicaon Plc service

centre. For details of your nearest

authorised service centres please

contact the ‘Service Department’ at

Marshall Amplicaon Plc.

3. All reprocessing and recycling of

Marshall Equipment at the end of

its useful life should only be carried

out by suitably trained and qualied

personnel at properly approved waste

electrical and electronic equipment

reprocessing and recycling centres.

4. Marshall Equipment should always

be fully disconnected from the mains

electricity supply before aempng

to carry out any repair, servicing or

disassembly.

5. Even when Marshall Equipment has

been disconnected from the mains

electricity supply it may sll retain

high voltage electrical charges that

are potenally hazardous to life and

health. Marshall Equipment may

also contain parts that remain at a

high temperature for a considerable

period of me aer use. Extreme

cauon should always therefore be

exercised when carrying out any

repairs, servicing or disassembly of

any Marshall Equipment.

6. All Marshall Equipment (including

its component parts) conform and

comply with relevant laws applicable

at the me of manufacture (including

but not limited to laws relang to

electrical safety, electromagnec

compability and the presence of

hazardous substances.) Furthermore

all components are specic for their

intended use and have undergone

appropriate conformity approval.

In the event that during the

repair or servicing of any Marshall

Equipment it is necessary to replace

any component, part or material,

it is therefore essenal that only

components, parts or materials that

have been approved by Marshall

Amplicaon Plc should be used.

7. Any safety warnings aached to

an item of Marshall Equipment

will comply with laws and industry

standards applicable at the me

such item of Marshall Equipment

was manufactured but may not

necessarily reect current law

or standards. No safety warning

aached to any item of Marshall

Equipment should be removed during

servicing or repair.

Save as set out below, Marshall

Amplicaon Plc accepts no responsibility

for any death, injury, loss or damage arising

from any non-observance of the above

condions.

Nothing in these condions shall limit

Marshall Amplicaon Plc’s liability for

death or injury to the extent that it

results from their direct negligence or its

employees.

4DSL40CR service manual

BOOK-80015-01 | M3390.069

COUNTRY IDENTIFICATION CODES

COUNTRY IDENTIFICATION CODES LISTED BELOW ARE USED THROUGHOUT THIS SERVICE MANUAL.

5DSL40CR service manual

BOOK-80015-01 | M3390.069

CODE COUNTRY CABLE (UK/VT) VOLTAGE POWER

A Australia, New Zealand CBLM-00007 / CBLM-90004 230V 50HZ

BBrazil CBLM-00011 / CBLM-90005 127V 60HZ

C Canada CBLM-00002 / CBLM-90003 120V 60HZ

DArgenna CBLM-00010 / CBLM-90007 220V 50HZ

EAndorra, Armenia, Austria, Bolivia, Bulgaria, Chile, Croaa, Cyprus, Czech Republic,

Gran Canaria, Egypt, Estonia, France, French Polynesia, Germany, Ghana., Greece,

Guadeloupe, Hungary, Iceland, India, Iran, Italy, Jordan, Kuwait, Lebanon, Malta,

Marnique, Netherlands, New Caledonia, Nigeria, Poland, Portugal, Reunion Island,

Russia, Singapore, Slovenia, South Africa, Spain, Tenerife, Thailand, Tunisia, Turkey,

Uruguay

CBLM-00003 / CBLM-90002 230V 50HZ

FColumbia, Costa Rica, Dominican Republic, Equador, El Salvador, Panama, Venezuela CBLM-00005 / CBLM-90003 120V 60HZ

HHome Market (UK), Ireland, Malaysia, Gibraltar, UAE, Bangladesh, Northern Cyprus CBLM-00006 / CBLM-90001 230V 50HZ

IIsrael CBLM-00015 / CBLM-90009 230V 50HZ

J Japan CBLM-00012 / CBLM-90010 100V 50/60HZ

K Korea CBLM-00014 / CBLM-90011 220V 60HZ

LIndonesia CBLM-00003 / CBLM-90002 230V 50HZ

M Mexico CBLM-00005 / CBLM-90003 130V 60HZ

Q China CBLM-00013 / CBLM-90013 220V 50HZ

S Semko Denmark, Sweden, Finland, Norway CBLM-00003 / CBLM-90002 230V 50HZ

T Taiwan CBLM-00009 / CBLM-90003 120V 60HZ

UUSA CBLM-00005 / CBLM-90003 120V 60HZ

X Hong Kong CBLM-00006 / CBLM-90001 220V 50HZ

DSL40CR EXTERIOR

PARTS LIST

ITEM QTY DESCRIPTION STOCK NO.

1 2.0 WHITE PVC 5.0DIA X 13 PIPE-90002

2 1 SMALL WHITE LOGO LOGO-01204

3 1.0 BLACK FRET COVERING FRET-90027

4 1 HANDLE OVERMOULD WITH BLACK END CAPS HNDL-90014

5 1 12” SPEAKER (16OHM) V-TYPE SPKR-91009

6 1.0 BLACK ELEPHANT GRAIN CVER-90002

72.0 BLACK ELEPHANT GRAIN CVER-90002

8 4 90 DEGREE REAR CORNER CORN-91008

9 4 90 DEGREE FRONT CORNER CORN-91007

10 4 RUBBER FEET (BIG) FEET-90026

A A

B B

C C

D D

SHEET

DRAWN

CHECKED

MFG

APPROVED

MPoderys 23/01/2020

DWG NO

DSL40C-00-00-01 FOR SERVICE MANUAL

TITLE

SIZE

SCALE

REV

1:2.2

2.0

1.0

2.0

6DSL40CR service manual

BOOK-80015-01 | M3390.069

A A

B B

C C

D D

SHEET 1 OF 3

DRAWN

CHECKED

MFG

APPROVED

MPoderys 23/01/2020

DWG NO

MD175D-10-00 FOR SERVICE MANUAL

TITLE

SIZE

SCALE

REV

1:2

AMP ASSEMBLY

PARTS LIST

ITEM QTY DESCRIPTION STOCK NO.

1 1 ROCKER BLACK 6 PIN SWTM-90010

2 1 MAIN SWICH WITH LED REF. TABLE 6

3 1 IEC POWER SOCKET SKTM-90002

8 1 DSL40CR FRONT PANEL REF. TABLE 2

9 1 OUTPUT TRANSFORMER D2507 TXOP-91007

10 1 POWER TRANSFORMER MD175XX REF. TABLE 1

12 1 DSL40CR REAR PANEL REF. TABLE 3

15 2 POWER SOCKET LITTELFUSE TO FIT SKTM-90002 REF. TABLE 4

7DSL40CR service manual

BOOK-80015-01 | M3390.069

AMP ASSEMBLY (CONTINUED)

PARTS LIST

ITEM QTY DESCRIPTION STOCK NO.

15 1 MAIN PCB ASSEMBLY PCBA-90023

19 1 SPEAKER OUTPUT PCB ASSEMBLY PCBA-00025

26 2 BIAS KNOB 0 DEGREE, RED KNOB-00052

28 1 REAR PCB ASSEMBLY, DSL-100M2-61-00-V4A PCBA-90025

29 1 DXF1 MODULE DFXP-90004

40 5 PUSH SW KNOB D=7 SWTP-90021

41 13 BROWN BODY GOLD CAP KNOB REF. TABLE 5

42 1 TUBE SHIELD-1 2.4-50 SHORT SPRING VLVE-90108

1VACUUM TUBE ECC83 (V1,V2) REF. VALVE CHART

1VACUUM TUBE ECC83 (V3,V4) REF. VALVE CHART

1VACUUM TUBE EL34 II JJ (V5,V6) REF. VALVE CHART

A A

B B

C C

D D

SHEET

DRAWN

CHECKED

MFG

APPROVED

MPoderys 23/01/2020

DWG NO

MD175D-10-00 FOR SERVICE MANUAL

TITLE

SIZE

SCALE

REV

1:2

A A

B B

C C

D D

SHEET

DRAWN

CHECKED

MFG

APPROVED

MPoderys 23/01/2020

DWG NO

MD175D-10-00 FOR SERVICE MANUAL

TITLE

SIZE

SCALE

REV

1:2

129

126

8DSL40CR service manual

BOOK-80015-01 | M3390.069

AMP ASSEMBLY TABLES

TABLE 1 - MAINS TRANSFORMERS

VOLTAGE SPEC QTY DESCRIPTION STOCK NO.

A, D, E, H, I,K, L, Q,

S, X

1POWER TRANSFORMER MD173DE TXMA-91066

B, C, F, M, T, U 1POWER TRANSFORMER MD173DU TXMA-91067

J1POWER TRANSFORMER MD173DJ TXMA-91068

TABLE 2- FRONT PANELS

MODEL QTY DESCRIPTION STOCK NO.

DSL40CR 1DSL40CR FRONT PANEL PANL-91096

TABLE 3 - REAR PANELS - COMBO

VOLTAGE SPEC QTY DESCRIPTION STOCK NO.

A, D, E, H, I,K, L, Q,

S, X

1DSL40CR REAR PANEL 230V PANL-91097

B, C, F, M, T, U 1DSL40CR REAR PANEL 120V PANL-91098

J1DSL40CR REAR PANEL 100V PANL-91099

DSL40CR (CCC) 1DSL40CR REAR PANEL (CCC) PANL-91100

TABLE 5 - KNOBS

MODEL QTY DESCRIPTION STOCK NO.

DSL40CR 1BROWN BODY GOLD CAP D FLAT D=19.5,

LINE OPP, FLAT TOL 5%

KNOB-90047

TABLE - 4 MAINS INPUT FUSES

VOLTAGE SPEC QTY DESCRIPTION STOCK NO.

A, D, E, H, I, K, L, Q,

S, X

1T1A 5X20 0219001.MXAP FUSE-90018

B, C, F, J, M, T, U 1T2A 5X20 0219002.MXAP FUSE-90017

TABLE 6 - MAIN SWITCHES

VOLTAGE SPEC QTY DESCRIPTION STOCK NO.

A, D, E, H, I, K, L, Q,

S, X

1MAIN SWITCH WITH RED LIGHT 220V SWTM-90009

B, C, F, J, M, T, U 1MAIN SWITCH WITH RED LIGHT 110V SWTM-90012

9DSL40CR service manual

BOOK-80015-01 | M3390.069

TO TEST VOLTAGES, SET AMPLIFIER TO:

1. Set all pots to maximum (10)

2. No tone shi

3. Output set to “Low”

4. No signal in inputs

5. Amplier plugged into an 16ohm load

6. Mains Switch “On”

7. Channel set to “Clean”

8. Loop set to “O”

Voltages 1 to 11 - Power Supply

Voltages 12 - BIAS Switching

Voltages 13 to 24 - PreAmp

Voltages 25 to 31 - PowerAmp

Voltages 32 to 33 - DXF1

Voltages 34 - Emulator

TO TEST SIGNAL, SET AMPLIFIER TO:

1. Set all pots to maximum (10)

2. Output set to “Low”

3. Amplier plugged into an 16ohm load

4. Signal generator set to 1kHz (9mV

rms or 25.46mV pp) sine wave

With signal 9mV rms or 25.46mV pp in

(T) JS206 (Return) signal on (T) JS201

(16ohm) = 941mV rms or 2.86V pp.

To get full output on (S) JS201 (16ohm)

Signal in Return (T) JS206 set to 90mV

rms or 255mV pp signal on (S) JS201

(16ohm)

= 9.1V rms or 25V pp (LOW)

= 19V rms or 58V pp (HIGH)

THROUGHOUT THIS SERVICE MANUAL

CL = CLEAN

CR = CRUNCH

OD = OVERDRIVE

B = BASE

E = EMITTER

C = COLLECTOR

TS = TONE SHIFT

MAINS TRANSFORMER SECONDARY WINDINGS

TEST POINT FEED(S) SUPPLIED VOLTAGE

CN 3/4 HT 1-5

CT, SCRN, HT6 “HIGH”

218V

CN 5/6 CT, SCRN, HT6 “LOW” 137V

CN 10/11 HEATERS (V2-8) 6.78V

CN 1/2 LT1, LT2, HEATER V1 15.2V

CN 21/22 BIAS1, BIAS2 108V

PLEASE NOTE: Due to possible variaons

in Mains voltages and component

tolerances, deviaon of up to 20% from

the readings is generally acceptable

parcularly with Waveform/signal

readings.

VOLTAGE AND WAVEFORM TESTING

TEST POINTS AND RELEVANT WIRING DIAGRAMS WITH RESULTS ALL DISPLAYED IN THE PAGES THAT FOLLOW.

Standby Switch O

10DSL40CR service manual

BOOK-80015-01 | M3390.069

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