Marshall Amplification DSL40CR Service Manual

MAIN PCB - FIG. E WAVEFORMS
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
2 3
DSL40/100 MK2 Main PCB
DSL100M2-60-02
9
07/06/2018DSL100M2-60-02-v9 Page2.SchDoc
TITLE
DWG. No.
Date:File:
ISS Sheet
of
C MARSHALL AMPLIFICATION PLC
TEL (01908) 375411 FAX (01908) 376118
DENBIGH ROAD, BLETCHLEY, MILTON KEYNES, MK1 1DQ.
DSL100M2-60-02
DWG. No.
DIMENSIONS IN
TOLERANCE (UNLESS OTHERWISE STATED)
MODEL
mm
DSL40/100 MK2
MATERIAL
MATERIAL THICKNESS
DRAWN
CHECKED
APPROVED
AC / PGS
?
DATE
DATE
DATE
16.03.2016
?
ISS ECO NUMBER DATE
HOLE DIA = +/-
6
7
8
9
Value Changes ACS
RFC3854
C138 Changed to 160V
RFC3921
09-02-17
06-09-17
27-02-17
06.06.18
DIMENSIONAL = +/-
1
2
3
V4:1
ECC83
6
7
8
V4:2
ECC83
1
3
4
5
8
V6:1
EL34-2
1
3
4
5
8
V8:1
EL34-2
1W
R34
82k
1W
R35
100k
0W61%
R37
1M0
0W6 1%
R46
1M0
0W6 1%
R36
470R
0W61 %
R39
10k
0W6 1%
R40
4k7
400V
C41
22n
500V
C84
100p
0W61 %
R131
220k
0W61 %
R132
220k
0W6 1%
R127
5k6
AGND
PS_IN
5W
5W
R18
1k0
5W
5W
R48
1k0
0W61 %
R42
100R
63V
C35
100n
AGND
HT6 HT6
CT
SCRN
AGND
AGND
2W F P
R21
1R0
2W F P
R22
1R0
BIAS1 BIAS2
0W6 1%
R57
5k6
MT1
MT2 MT3 MT4
MT5 MT6
GND
AGND
PGND
DGND
PRESENCE
RESONANCE
1
3
4
5
8
V7:1
EL34-2
5W
5W
R47
1k0
0W6 1%
R130
5k6
1
3
4
5
8
V5:1
EL34-2
0W6 1%
R128
5k6
5W
5W
R19
1k0
CW
VR8:1
C5k
*
*
*
*
*
*
MT7 MT8
MT9
MT10
630V
C37
22n
630V
C38
22n
* = NOT FITTED ON 40W
FB
AGND
CN12
CN13
CN14
MT11
CW
VR9:1
C5k
0W61%
R41
100k
+
63V
C89
47u
100V
C40
100n
TR1
MPSA44
1W
R144
22k
0W6 1%
R146
100R
TR6
MPSA44
0W61 %
R148
1M0
0W61%
R147
100R
0W6 1%
R142
10k
0W6 1%
R143
100k
0W6 1%
R141
1M0
HT1
450V
+
C36
10u
200V
C139
47n
PGND
AGND
CN18:1
CN18:2
CN15:1
CN15:2
CN15:3
CN15:4
160V
+
C138
10u
J.E.M
06-06-18
Andy
Golding
2018.06.07
11:21:50
+01'00'
FIG E
K L
M
O
P
N
K - VALVE4 PIN2
L - VALVE4 PIN7
M - VALVE6 PIN1
N - VALVE7 PIN1
O - VALVE6 PIN3
P - VALVE7 PIN3
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT K (CL)
V4 PIN2 V(rms) 199mV and V(pp) 576mV
FREQUENCY:1kHz - “HIGH”
V4 PIN2 V(rms) 788mV and V(pp) 2.28V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT K (CR)
V4 PIN2 V(rms) 1.18V and V(pp) 3.38V
FREQUENCY:1kHz - “HIGH”
V4 PIN2 V(rms) 4.66V and V(pp) 13.4V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT K (OD1)
V4 PIN2 V(rms) 2.01V and V(pp) 7.44V
FREQUENCY:1kHz - “HIGH”
V4 PIN2 V(rms) 8.09V and V(pp) 35.2V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT L (CL)
V4 PIN7 V(rms) 58.2mV and V(pp) 172mV
FREQUENCY:1kHz - “HIGH”
V4 PIN7 V(rms) 139mV and V(pp) 404mV
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT L (CR)
V4 PIN7 V(rms) 307mV and V(pp) 896mV
FREQUENCY:1kHz - “HIGH”
V4 PIN7 V(rms) 811mV and V(pp) 2.32V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT L (OD1)
V4 PIN7 V(rms) 386mV and V(pp) 1.10V
FREQUENCY:1kHz - “HIGH”
V4 PIN7 V(rms) 988mV and V(pp) 2.68V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT M (CR)
V6 PIN1 V(rms) 3.54V and V(pp) 9.92V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT M (CR)
V6 PIN1 V(rms) 16.5V and V(pp) 40.4V
FREQUENCY:1kHz - “HIGH”
V6 PIN1 V(rms) 59.6V and V(pp) 146V
FREQUENCY:1kHz - “LOW”
RESULTS FOR TEST POINT M (OD1)
V6 PIN1 V(rms) 18.2V and V(pp) 49.2V
FREQUENCY:1kHz - “HIGH”
V6 PIN1 V(rms) 54.9V and V(pp) 154V
FREQUENCY:1kHz - “HIGH”
RESULTS FOR TEST POINT M (CR)
V6 PIN1 V(rms) 15.2V and V(pp) 44V
CL - Clean
CR - Crunch
OD1 - Overdrive 1
30DSL40CR service manual
BOOK-80015-01 | M3390.069

Marshall Amplification DSL40CR Specifications

General

Brand	Marshall Amplification
Model	DSL40CR
Category	Amplifier
Language	English