BST UPA-120TU Manuel D'utilisation page 8

12. PEAK LED
If this le dis on, that means the signal is too high. You must to decrease it or the signal must be bad quality and the power amplifier or
speakers can be defect.
13. USB PLAYER
See explaination later
14. FM ANTENNA CONNECTOR
The USB player have a built-in radio. This socket is used to connect FM antenna
15. AM ANTENNA CONNECTOR
The USB player have a built-in radio. This socket is used to connect AM antenna
16. POWER SUPPLY SOCKET + FUSE
Plug the AC power cord on this socket. Before plugging this cord in, be sure the voltage of AC outlet is correct. ( 220V )
The fuse is used to protect your power amplifier from different kinds of ac problems. If the power amplifier is "on" and nothing lights, please
verify the fuse compartment. If fuse is broken, please read it and change with a new one of same size and value.
17. MONITOR SPEAKER CONNECTOR
You can plug a small monitor speaker on this output. Controls the level in using Aux/Cd level control or Mon level controlss ( 24 )
18. PRIORITY CONNECTOR
Short-circuit this socket and you enable the chime priority function. Taht means when you start the chime, you level of aux input will
automatically decrease
19. PHONE CONNECTOR
This socket is use to connect a phone signal. This signal have a priority function on all the other inputs
20. ZONE SPEAKER OUTPUT
These output are used to connect 100V speakers for each zone Z1, Z2, Z3 and Z4
21. DC POWER IN
This socket are use to connect a 24V DC power supply. When you have no AC power supply, the power amplifier will start automatically the
DC power supply.
22. SPEAKER OUTPUT
These output are used to connect low impedance speaker, 70V speaker or 100V speaker
23. PHONE LEVEL CONTROL
This control is used to adjust the level of phone signal
24. MONITOR SPEAKER CONTROL
This control is used to adjust the level of monitor speaker signal
25. AUX/CD INPUT LEVEL SELECTOR
When it is AUX the low signal is present , It is CD the high signal is present.
26. PRE OUT
This terminal output the mixed audio signals of all sources that are connected to the amplifier's inputs and can be utilized to feed an
external power amplifier, a signal processor (e.g. an equalizer), or any other external appliance. The unbalanced signal is affected by the
individual input controls. Before using the PRE OUT you have to remove the bridging strip between this binding post and the "AMP IN"
terminal (27).
27. AMP IN
After removing the bridging-strip between the "PRE OUT" and the "AMP IN" terminals you can include an external signal processor (e.g. an
equalizer) in the audio-chain between the preamplifier and the power output stage of the power amplifier. This opportunity provides a
proper solution whenever shaping or improving the audio signal is necessary (adjusting delay times, equalizing, eliminating the Larsen
effect, etc.).
28. REC OUTPUT
Connect on this ouput a record device ( as DVD recorder, tape recorder,... ).
29. AUX/CD INPUT
The "R" and "L" sockets permit input of the right ("R")and left ("L") channels of an audio source with a high-level output signal , such as an
AM/FM tuner, a cassette deck, a CD player, etc. Use input sensitivity switch (25),suitable for difference appliances. They are able to take
RCA-type coaxial connectors, and unbalanced signals.
30. INPUT 1 TO 4 LEVEL SELECTOR
By turning these switch onto the "LINE" position the"IN1", "IN2", "IN3", "IN4" input can be connected to an audio source with high level
signal output. By turning these switches onto the "MIC" position the "IN1","IN2","IN3", "IN4" input can be connected to a dynamic
microphone with low Impedance. By turning these switch onto the "24V" opsition connects "the 24V" phantom supply on XLR of pin2 and
pin3 of inputs "IN1","IN2","IN3","IN4", necessary to operate condenser type microphone which require this type of external supply. It is
recommended to use this switch with
31. THE GENERAL VOLUME SET ON MINIMUM.INPUT 1 TO 4
These three balanced/unbalanced combination type jack (XLR and 6.3mm) inputs, meant for the connection of condenser type microphone
that accepts 24V phantom power, dynamic microphone (30- 600 ohms) or a high level sound source (e.g. AM/FM tuner, cassette desk, CD
player, etc.). In case you are using, it is necessary to use the switch (30). "Input 1" has a "Voice Priority" function that excludes all the other
inputs as soon as a message is transmitted with a
32. MICROPHONE.MUTING LEVEL CONTROL
This knob can control the signals that be muted output level.
USB PLAYER :
© Copyright LOTRONIC 2018
UPA-120TU / UPA-240TU
Page 8