Rear Panel Controls - Adastra 952.916 Operation Manual

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REAR PANEL CONTROLS

1. FUSE HOLDER
Main fuse housing.
If blown, replace it with same type fuse as
specified below. If the fuse continuously
blows, refer servicing to qualified personnel.
VOLTAGE =
FUSE =
2. MAINS INPUT SOCKET
For connecting the power cable supplied with
the product.
3. ANTENNA TERMINAL
The purpose of this terminal is to connect the
antenna cable when the tuner is used
4. "AUX IN" AUX INPUT CONNECTOR
An auxiliary source can be connected to this
input (cassette player, CD....).
5. LINE OUTPUT CONNECTOR
The line output signal of this unit can be used
to connect up another amplifier, e.g., a
recorder or a signal processor, etc
6. INPUTS 1-4, MIC/LINE
These are XLR microphone/ line input
connectors with balanced electrical circuit.
7. INPUT GAIN SELECT
According to the input signal source, the gain
switches to MIC/LINE.
MIC (Microphone)
LINE (Deck, etc.) -12dB (250mV) 10kΩ
(3) (10)
(Fig. 4)
AC 230V
T1, 6A/250V
-54dB (2mV)
8. PHANTOM POWER SWITCH
This switch turns on the phantom power
supply for all channels. Use this switch when
you are using condenser microphones.
When this switch is turned on, DC +18V will
be supplied to pins 2 and 3 of each INPUT
socket. If you do not need phantom power,
be sure to leave this turned off.
9. VOX SWITCH (priority)
This switch can be used to switch the VOX
control (AUX priority) on and off.
control affects all four inputs 1- 4 and AUX
10. FM FREQUENCY SELECTION SWITCH
This switch permits selecting the tuning
frequencies according to European (FM 87.5-
108 MHz) or US standard (FM 87.5-107.9
MHz)
11. SPEAKER OUTPUT TERMINALS
Use speakers with the same or higher than the
nominal output impedance of the amplifier.
4Ω
22V
12. 24Vdc EMERGENCY POWER SUPPLY
These terminals permit connection of a 24Vdc
emergency power supply.
5
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8Ω 70V 100V
31V 40,8Ω 83,3Ω
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