PAGE 6
This is the A.C.’s ( Alternating Current ) main fuse and provides protection from outside A.C. fluctuations, as well as power tube failure
damage. Should the FUSE blow, replace it with the same rating in a slo-blo type package. The domestic U.S. version requires a 2
Amp SLO-BLO FUSE. A power tube short or failure is often the cause of a blown fuse...Follow the cold
start procedure mentioned in the ON / STANDBY switch section and watch the power tubes as you
flip the STANDBY to the ON position. If a power tube is going bad or is arcing you will see it! Flip the
STANDBY switch to STANDBY immediately and replace the faulty power tube and the fuse if necessary.
If you see nothing abnormal as you lift the STANDBY switch, it is possible that a power tube shorted
temporarily and blew the Fuse. If this is the case it may work again normally. To be extra safe you may
want to replace all power tubes in the “shotgun” troubleshooting tradition and save the replaced set as
spares. Carry along a few extra fuses for they too could be worth their weight in gold some day.
This jack provides direct-to-console interfacing for recording or sound reinforcement applications. It can also be used to power a set
of personal headphones which is a convenient way to practice day or night privately. It is a circuit dedicated to reproducing the roll off
that occurs in the output section with a speaker connected.
The send level strength is determined by the GAIN and MASTER controls. From this jack, adequate
signal level will be available to you for most of your recording needs and live performances.
These two 1/4" jacks are the patch point for external effects. The Effects Loop is wired in parallel with the normal signal. Connect the
SEND jack of the ROCKET 44 to your Effects Input jack. Connect the RETURN jack of the 44 to the Output jack of your effect
unit. The Effects Loop is a patch point between the pre-amp and power section.
Therefore, the RETURN jack can double as a “Power Amp Input” jack.
When the RETURN is used as an input, the ROCKET 44’s MASTER controls are
the only two controls being utilized regardless of which one of the three modes you
happen to be in. Also, while the RETURN is being used in this manner, all other
controls are inactive.
REAR PANEL:
HANDBUILT PETALUMA, CA
DYNA-WATT POWER
TM
8 OHM
4 OHM
4 OHM
SPEAKERS
RECORD / PHONES
STEREO OR MONO
FX
SEND
RETURN
FX MIX
10%
PREAMP PATENT
4,701,957
2A S.B.
F
U
S
E
F
U
S
E
1
0
0
%
SILENT RECORDING
MUTE SPKR ON
WARNING:
Unplug power
before replacing
fuse or removing
bolts mounting
chassis.
POWER FUSE
2 A
SLO
BLO
120 V~
50-60 Hz
2 A
FOOTSWITCH
SOCKET
BELOW
WARNING: To reduce risk of fire or
electric shock, replace fuse with
same type and rating only. Do not
expose this unit to rain or moisture.
CAUTION: To reduce risk of fire or electric
shock, do not remove cover. No user-
serviceable parts inside. Refer
servicing to qualified personnel.
FUSE:
RECORD / PHONES
STEREO OR MONO
2A S.B.
F
U
S
E
F
U
S
E
WARNING
:
Unplug power
before replacing
fuse or removing
bolts mounting
chassis.
POWER FUSE
2 A
SLO
BLO
120 V~
50-60 Hz
2 A
FOOTSWITCH
SOCKET
BELOW
RECORD / PHONES:
RECORD / PHONES
STEREO OR MONO
2A S.B.
WARNING
:
Unplug power
before replacing
fuse or removing
bolts mounting
chassis.
POWER FUSE
2 A
SLO
BLO
120 V~
50-60 Hz
2 A
FOOTSWITCH
SOCKET
BELOW
F
U
S
E
F
U
S
E
FX LOOP: SEND / RETURN:
RECORD / PHONES
STEREO OR MONO
2A S.B.
WARNING
:
Unplug power
before replacing
fuse or removing
bolts mounting
chassis.
POWER FUSE
2 A
SLO
BLO
120 V~
50-60 Hz
2 A
FOOTSWITCH
SOCKET
BELOW
F
U
S
E
F
U
S
E
FX
SEND
RETURN
FX MIX
10%
PREAMP PATENT
4,701,957
1
0
0
%
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