B&K TX4430 - Manual (Page 10)

Note: When turning equipment ‘off’, the amplifier should always be turned off first, then
the preamplifier. When turning equipment ‘on’, the preamplifier should always be
turned on
first, then the amplifier. Before turning anything on, ensure the preamplifier
is at a low volume level.
Diagram 1
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
I ATTENTION i
DANGER D'ELECTROCUTION
NE PAS OUVRIR
B&K Components, Ltd.
Buffalo, NY 14227-2725
A
A u d i o / V i d e o S y s t e m s
M a d e i n t h e U . S . A .
V.
FUSE
uirifti PAI coNì^Huea
PPSIPCriH lUUUfT wu
Df Fl|f IFPuUt fiPPLV mrH
VÙLTAtìi
A.C
SEN UG
WHEMSwrrcH
13 SFTTO
ENABLE,
THi AMPLIFIER
W^LLONLY
OPERATE WHILE
A6^V SIGNAL
IBAPPLIEO
TO CTRL IN
CTRL IN
ENA3LË
RIGHT
INPUT
CENTER
INPUT
LEFT
INPUT
Control muting
A control is provided on each TX4430 amplifier to allow remote switching of mute
on/off. The preamplifier’s control output, such as is provided with B&K AVP series
preamplifiers, can be utilized to provide a control signal to the TX4430. If more than
one amplifier Is being controlled, the control signal can be extended to include each
successive unit by simply running an RCA type audio cable from the CTRL OUT
connector of the first amplifier to the CTRL IN connector of the next unit (commonly
referred to as ‘daisy chaining’). An example of how to connect two amplifiers is
illustrated below.
If a source other than a B&K AVP series preamplifier is used to control multiple
amplifiers, only the control output voltage from the source Is critical. It must be within
the range, as indicated on the rear panel, 5-24 volts DC is required. The amplifier will
provide each successive amplifier with a control voltage of 12 volts DC for reliable
operation. The amplifiers control output may be used as a source of 12 VDC @125
mA for other user applications as well.
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