Fender Bassman 100T Instrucciones De Funcionamiento página 7

INPUT
120V 60Hz 350W TYPE: PR 1210
POWER
ON
OFF
F8A L
POWER STANDBY FUSE
250V
M. POWER SWITCH — Switches power on-off to the unit. Both the
POWER switch and the STANDBY {N} switch must be in the "ON"
position to play the amplifier. Switch to the "OFF" position to
completely shut off power to the amplifier.
♫
You can extend the life span of the amplifier tubes by keeping the
Standby switch in the "STANDBY" position for the first 60 seconds
each time you switch the Power to "ON."
N. STANDBY SWITCH — In the "STANDBY" position, high-voltage
power is turned off to the pre-amp and power-amp tubes,
extending their life and silencing the amplifier. Power is still
supplied to the tube filaments, keeping them warm and ready to
rock.
♫
Use STANDBY instead of switching the POWER off during short
breaks to extend tube life span and to avoid the tube warm-up
delay upon returning to play the amp.
O. POWER SOCKET — Connect to a grounded outlet in accordance
with the INPUT POWER voltage and frequency specified above the
power socket on your amplifier.
P. PRIMARY/MAINS FUSE — Protects the amplifier from electrical
faults. Replace a blown fuse only with the type and rating specified
below the fuse holder on your amplifier.
Q. OUTPUT POWER SWITCH —
• 100W - Loudest setting, for typical use. Tubes are supplied with
480Vdc, offering maximum output power.
• 25W - Quieter setting. The power supplied to the tubes is
reduced to 240Vdc, resulting in the same tube tone and
dynamics as the 100W setting, but at a lower volume level.
• SILENT RECORD - The amplifier output is disconnected from
the speakers {R} and is connected to an internal power soak
instead. The signal from the power amplifier is available at the
XLR jack {AA} with {Y} set to "POST."
R. MAIN SPEAKER / EXTENSION SPEAKER —
A speaker must ALWAYS be connected to the MAIN SPEAKER jack
!
when the amplifier is ON (except while in STANDBY or SILENT
RECORD) or damage may occur to the unit. Switch the amplifier
to STANDBY {N} while changing speaker connections.
Connect speaker enclosures, then set the SPEAKER IMPEDANCE
switch {S} accordingly.
S. SPEAKER IMPEDANCE — Set this switch to match the total load
impedance of the speakers you have connected, according to the
table below:
MAIN EXTENSION
SPEAKER SPEAKER
8Ω + None =
8Ω + 8Ω =
4Ω + 8Ω =
4Ω + None =
4Ω + 4Ω =
2Ω + None =
PARALLEL SPEAKER OUTPUTS
OUTPUT POWER
100W
100W 25W SILENT RECORD
25W
OPERATE SWITCHES WHILE IN STANDBY.
100W
SPEAKER IMPEDANCE
2Ω min TOTAL
SILENT RECORD
MAIN EXTENSION
TUBE FUSES
T100mA L SPEAKER SPEAKER TUBE SHORT
250V 8Ω 4Ω
IMPEDANCE
TOTAL SWITCH
IMPEDANCE SETTING
8Ω 8Ω
4Ω 4Ω
2.6Ω 4Ω
4Ω 4Ω
2Ω 2Ω
2Ω 2Ω
fender.com
Rear Panel Rear Panel
AUTOMATIC BIAS
WARM
ADJUST
NORMAL
2A 1A 1B 2B
COOL
OUTPUT TUBE STATUS
PATENT PENDING
2Ω
Switch the amplifier to STANDBY {N} while changing SPEAKER
!
IMPEDANCE settings.
T. AUTOMATIC BIAS — Monitors and adjusts the bias setting for
your amplifier's power output tubes. Please refer to the Fender
Automatic Bias section on the next page for greater detail.
U. FOOTSWITCH — Plug the included footswitch in here to enable
remote channel switching. When the footswitch is connected,
the front panel CHANNEL SELECT switch {D} is disabled, but the
channel indicator LEDs will operate normally.
V. TUNER — Connect your instrument tuner here.
W. PREAMP OUT / POWER AMP IN — Multi-functional input/output
jacks that can be used in a variety of configurations:
1) Effects Loop — Connect PREAMP OUTPUT to the input of your
effects device and connect PWR AMP INPUT to the output
jack of your effects device. The signal level here is nominally
line level (+4dBu) and is most suitable for professional rack-
style effects. MASTER {K} affects the send level, and the
effects device controls the return level.
2) Multiple Bassman® 100T Amps — Connect PREAMP OUTPUT
on the primary unit to PWR AMP INPUT on an auxiliary unit.
The knobs on the primary unit control the auxiliary unit.
X. LEVEL — Use to adjust the output level of the XLR OUT jack
{AA} to accommodate the input sensitivities of outboard sound
equipment.
Y. PRE / POST — Select "PRE" for a DIRECT tube driven signal,
unaffected by preamp controls.
The "POST" signal is taken at the power amplifier output, and is
affected by preamp adjustments {B-K} as well as power-amplifier
dynamics. The XLR level is automatically turned up or down to
compensate for the OUTPUT POWER {Q} mode selected, resulting
in the same XLR signal level for all three modes.
Z. GROUND / LIFT — Select "LIFT" to disconnect the ground
connection on the XLR OUT jack which may reduce hum or line
noise in some situations. Normally leave this button out, in the
"GND" (grounded) position.
AA. XLR OUT — A balanced, line level output for connection to mixing
consoles and recording equipment. Set the OUTPUT POWER switch
{Q} to "SILENT RECORD" to disable the speaker outputs during
recording.
BB. POWER TUBE SCREEN FUSES — These fuses protect the amplifier
from tube failures in the respective pair of power tubes. Replace
a blown fuse only with the type and rating specified on the rear
panel of your amplifier.
CC. TUBE SHORT INDICATOR — Sometimes power tubes will suffer
from temporary short-circuits that are not be severe enough to fail
and blow a fuse, but will cause cracking or popping noises in the
speaker. Any time a tube shorts, this light will illuminate and fade
off after the short-circuit is gone. If you hear popping noises from
your amplifier and this light is on, one of your power tubes is having
problems and may need to be replaced soon. However, in some
cases the tube may have a momentary short but then continue to
perform for many years after the short is gone. This light simply
aids in identifying where the popping noises are coming from, and
notifies you that you may need to buy a spare tube.
PRE
FOOT TUNER PREAMP PWR AMP
POST
SWITCH OUTPUT OUTPUT INPUT
LEVEL
GND
LIFT
XLR OUT
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