Page 1
Model 42lO
NER'S
HANDBOOT(
5OW.
1x 12
GOMBO
AMPLIFIER
SPLIT
GHANN
SWITGHING
SPEGIAL
1 All valve
R.M.S.
efficiency
specially manufactured
Footswitchable
2
giving
lead settings for maximum flexibility in
operation.
construction
output
80W. 12
individual
FEATURES
giving
power
split channel
into a high
inch loudspeaker,
control over
sOW.
Marshall.
for
facility
EL
rhythm
or
Each
amplifier chassis
from a minimum
precision
welded to
foundation,
knocks of the road. Industrial
cadmium
years
cut,
form
passivating
of rust-free operation.
of
punched,
a substantial,
strong enough
is constructed
16
S.W.G.
bent
and
to
ensures
steel,
seam-
rigid
take all
grade
many
the
Highly versatile tone
3
number of differing sounds from each
channel.
Extra long sustain and
4
capability.
Footswitch controlled, smooth
5
Hammond
in any situation.
Effects
6
allowing
between
designed to match most effects units in
operation
to their limits of unwanted distortion.
7 Super compact size, without any
compromise
rellability.
reverb for concert
send and
pedals
preamp
today, without
performance,
in
circuitry
powerful
return circuitry,
patched
be
to
and output
for
deep
hall
in
stages,
pushing
quality
any
overdrive
effects
and
them
or
All electronic
tested to
and
functions,
grades
Each
birch
for immense
cotton backed
stretched
indestructible
protectors
heavy
absorbing
Before leaving the factory,
has been
electronic engineers
available.
cabinet
ply,
duty
components are selected
out-perform their required
are
and
corner locked
and bonded
are riveted into
strap
feet
thoroughly
chosen
is
made
strength
P.V.C.
plastic
are screwed
from
and
covering is
on.
A.B.S.
handle
tested by a team
and musicians.
and r.f. bonded
and shock
from
the finest
finedt
longevity,
Virtually
position,
on.
your
quality
corner
a
Combo
and
of
Page 2
FRONT
PANEL
FUNCTIONS
Power
1
Switch
2 Standby
Switch
Jack Connects
lnput
3
Glean/Rhythm
Vof ume
4
Control
Treble Controls
5
Control
Bass
6
Controfs
Boost Ghannel
Boost
7
Channel
BAGK
Controls
amplifier.
Controls
valves, allows
heated
Ghannel
To set
playing
channels
Controls
channels
(right-handl
lndicates
L,E.D.lse/ected
PANEL
mains
total
H.T. supply
filaments
the
during
the
breaks.
instrument
(teft-handl
level of
styles.
increase
high
increase
low freguencY
red
via
normal or
or decrease
freguencY
or
Ghannel
when channel
footswitch.
FUNCTIONS
power
to amplifier
decrease of
to
remain
to
to amplifier.
rhythm
of
response.
response.
Facilities
is
the
the
10
11
12
13
14
Gain
Control
Volume
Control
Treble
Control
Middle
Control
Bass
Control
Master
Reverb
Master
volume
Controls
and the
Controls
channel.
Controls
of the
Controls
channel
also
Controls
the
effect
channel
modify
channel
Controls
in total sound output.
Controls
amplifier
amount
the
degree
the
the
the
and
the
the
the
of overdrive
loudness
high
output.
middle
high settings,
at
the treble
low freguency
output.
depth of the
overall
loudspeakers.
and
of boost
level of
frequency content
register of
and bass.
output
drive
reguired.
the
the
this will
content of
reverb
level of
I5
Mains
15
lnput socket
Mains
16
Fuse
HJ.
17
Mains
18
Selector
19
Output
Selector
Loudspeaker
2O
Fuse
l7
Connects
i.e.
20v.-73A.
|
CORRECT
TSOOnA. only.
slow
ONLY.
M
to
| 20/220/240V.
M atc
impedance
impedance,
loudspeaker
unless otherwise
loudspeaker chassis.
check
Parallel connected
lo u dspea ker c
Loudspeaker
t8
amplifier
19
to mains supply,
| 2ol22o/24ov.40/60
2 20
/240V.-72A.
VALUE
blow).
atches
the incoming
amplifier
hes am
to loudspeaker
with supplier.
FUSE ONLY.
(Note
USE CORRECT
power
mains
pl
ifier output
i.e. 4/8/l 6 ohm.
is normally | 6
stated on
iacks
o n n ectio
load must always be
20
Hz. | 75W.
U S E
"T"
denotes
FUSE
transformer
voltage,
ta nsform
load
lnternal
ohm,
lf in doubt,
for
n s.
i.e.
er
D.l.
21
Slave
D.l.
22
Slave
Effects
23
Return
Effects
24
Send
Footswitch
25
Jack
Footswitch
26
or
or
level
Jack
connected.
used, total
matched to
less than 4 ohm.
Controls
signal.
Jack
amplifier
of
connection
mixing
system.
Return
effects unit.
Signal
external
Connector
footswitch
Footswitch
Boost ChannelON/OFF.
lf one
impedance
volume
socket carrying
desks, or
jack
jack
to feed
effects
for boost/reverb
unit.
for reverb ONlOFF.
or both
must be
selector and
low level output
of
low levelversion
output,
to
from output of external
suitable
recording
into Slave
input
the
unit.
sockets are
not
must
for
and P.A.
amplifying
of
dual
be
Page 3
OPERATIONAL
FUNCTIONS
PLEASE
Ensure
connected
are
amplifier
Connect
b.
(251.
Connect
D.l./Slave equipment
appropriate
vof ume controls
Turn
d.
Check
e.
mains supply and connect
(1
Switch
t.
up
g.
Connect
h.
Switch
Turn boost channel
i.
on
that
5).
to working temperature.
with the
NOTE:
internal and/or
(20)
(1
9).
footswitch
external effects
sockets.
mains settings
power
standby
on
instrument to input
on
footswitch
BEFORE SWITCHING ON
LIVE_BROWN. NEUTRAL-BLUE.
I.E.
external
and
(26)
(21,22l-,
to
(1
and
)
(2),
off and
properly
to correct
units
zero
(26).
loudspeakers
matched to the
(23,
if in use, to
@,8,9,14l.
(1
correspond to
8)
to
amplifier
valves
allow
jack (3).
the normal
jack
24) and
at socket
to heat
socket
the
channel
THIS UNIT
EARTH_GREEN
Adjust normal
k.
controls
t.
Turn
by depressing
will
m'
Advance
(9)
low
overdriven
middle or
Adjust
n'
bass
that
during
Adjust
o.
effect,
function.
p.
To
boost channel,
and
output
(14).
lT MUST
boost channel
now light up.
for
gain
(12)
these tone
achieve
(9)
BE CORRECTLY
AND YELLOW.
channeltreble
for desired
boost
desired sound,
(8)
and
sounds,
high volume
boost channel
controls
high overdrive situations.
reverb control
using footswitch
maximum overdrive/sustain,
to maximum and
of the Combo
tones.
on and
footswitch
channelvolume
i.e. for a clean
volume
high
high
use
settings
treble
the desired tone,
for
controls
turn all
become less effective
(1
3)
(26)
the volume controls
using the
EARTHED'
(5)
normal
(26),
the red
(9)settings.
gain
(10),
for desired
to control
control the total
bass
and
channel off
L.E.D.
controls
sound, use
(8)
and
(9).
middle
but note
depth of
ON/OFF
master volume
(6)
(7)
(8)
and
For
low,
(1
1
),
use the
(8)
Advance volume controls
e-ls-Natgjst.ef
-deirc
-
d
lerv
normal volume
(1
settings
4).
VUAR
A. ATWAYS
plug,
conforming
standards.
B. ALWAYS
to the colour
mains lead.
C. NEVER,
operate
earth.
D. NEVER
fuses or
value.
fit
wire the
under any circumstances,
the amplifier
attempt
fit
ones
(4)
N
a
high
and
I
good
to the
plug
(4)
a
,q
quality
(14)
and
sound
n
master volume
N
latest
according
code attached
without an
to bypass
of the
incorrect
to
se I ow
s, u
G
mains
B.S.l.
to the
the
REMEMBER
.
Funwm 16T cAREFauv
READ
HE
DO NOT
F.
amplifier
serviceablb
ALWAYS
G.
serviced
qualified personnel.
NEVER use an
H.
wet
DO NOT
t.
without the loudspeaker connected,
and ensure
selector
speaker or speakers.
Experiment
!
your
Marshall 4210 Combo,
achieve
performance.
its maximum
attempt
with
the controls
all
flexibility and
to remove the
chassis, there are
parts.
have this equipment
or repaired by competent
amplifier
in damp
conditions.
switch
the amplifier on
that the impedance
is
correctly
matched to the
on
to
no user
or
E. NEVER
valves
with the amplifier
to the mains.
ALWAYS
INSURE THAT
attempt
to replace
fuses
or
connected
PLEASE READ
J.
manual
on.
MARSHALL APPROVED COMPONENTS
instruction
this
carefully before switching
ARE USED AS
REPLACEMENTS.
Page 4
SPECI
FICATION
Ar 1 KHz.
(untessotherwisestated)
NORMAL
Sensitivity
Treble
Bass
Point - 8OO
Mid
BOOST
Sensitivity
Treble
Mid
Bass
EFFECTS
Level 30
CHANNEL:
-
Controls
1O KHz. - 30
-
1OO
GHANNEL:
-
Controls
O/L Gain
10 KHz. - 30
-
550
-
100
SEND
for full output.
mV.
POWER O/P:
R.M.S. into
sOW.
Full 55
O/L 300
Hz.-22
Hz.
Full
Full
Hz. - 15 dB.
Hz.-25 dB
AND
4,8,16 ohms
mV.
mV. O/L
dB.
dB.
.25 mV.
.25 mV. Gain
mid down
dB.
mid down
RETURN:
typical.
Flat
[1Oo
Flat M-4
4OO
T-10
B-6
- 1 -
rnu.
mV.
35
mV.
REVERB:
Hammond 2 Sec.
CHANNEL
Transistor
L.E.D. display
Logic
delay.
AND
REVERB SWITCHING:
for boost channel
D.I. OUTPUT:
Max O/P - 6
1V. R.M.S. into
I nfinitely variable
dBm. at Clipping
1O K
frequency compensated,
ohm
or
VALVE COMPLIMENT:
x ECC83.
5
2 x EL34 or
KT77.
MAINS INPUT:
12O/22O/24OV.
40/6,0 Hz.
FUSES:
Mains
H.T. T5OOmA.
22O/24OV.-T2A.
12OV.-T3A.
on.
into 6O0 ohm.
greater.
175W.
Input,qmp
!
rJff:,
---1p?
1.;t
1L_t
Gain Post Gain
O/P Bullel
M
-*'"rT5""
\
fit-{>+fl"^-
-l
fe +llE+'l
i
r<rr> a
+'-ztF
FUNCTION
,o"*,
il
-H-18,t,",
J**
DIAGRAM
*1-
g
i
i. ta
rq
=\*r;
I
.-r{
H""b-
e-lf
- i Fa
(
b\*f-t
c-99=
l
i
Voltage
Selector
120/220/240V
Mains
Transformer
d >d
.
H=
The equipment
damage whether consequently
is
supplied
by Jim
Marshall Products Limited who
or otherwise
howsoever arising
will not
whether from negligence or
be
liable
for
any
loss, iniury or
otherwise.
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