B&K Phono10 Owner's Manual - Control I/o Connections
8
CONTROL I/O CONNECTIONS
A control input/output is provided on the Phono 10 preamplifier to remotely turn the unit on and off.A receiver or
preamplifiers control output, such as is provided with the B&K series, can be utilized to provide a control signal to
the Phono 10. If a B&K amplifier is also being used, the control signal can be extended to include each
successive component by simply running a 1/8 inch mini jack cable from the CONTROL OUT connector of the
Phono 10 to the CTRL IN connector of the amplifier. This is commonly referred to as “daisy chaining”. An example
of how to connect these components is illustrated in Figure 4.
If a source other than a B&K receiver or preamplifieris used to control the Phono 10, only the control output
voltage from the source is critical. It must be within the range, as indicated on the rear panel, 5 - 24V DC. The
Phono 10’s CONTROL OUT will provide each successivecomponent with a control voltage of 12V DC for reliable
operation. The Phono 10’s control output may be used as a source of 12V DC @ 35 mA for other user
applications as well. DO NOT POWER MOTORS WITH THIS CIRCUIT!
Figure 4
If the controlfunction is desired, each component in the system must remain connected at all times and the
control must be enabled. To enable the control function, the CONTROL ENABLE button must be out for each
controllable component in the system. For more information on the Phono 10’s output status under various control
conditions, refer to (Table 2).
Table 2
@ CTRL IN
Button Position
Output Status
@ CTRL OUT
Signal OUT Sound Signal
Signal IN Sound
Signal
No Signal
OUT
Mute
No Signal
No Signal
IN
Sound
Signal
NOTE: The control voltage is for muting control only. Each component must be connected to its own source of AC
power in order for it to operate.