Academy Audio Hi-End MUSES Podręcznik użytkownika - Strona 3
Przeglądaj online lub pobierz pdf Podręcznik użytkownika dla Jednostka sterująca Academy Audio Hi-End MUSES. Academy Audio Hi-End MUSES 5 stron. Electronic volume controls
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Refer to Figure 1 for mechanical dimensions and mounting holes location. To install multiple Volume
Control boards use at least 1.000" long spacers, and position the boards on top of each other.
3. Power Connection
The Volume Control board requires the following power sources to operate:
1. Digital power source of +5Vdc, 200mA (Including an optional MCU Control Module)
2. Clean analog bi-polar power source of Vcc=+12Vdc to +18Vdc, 100mA and Vee=-12Vdc to -
18Vdc, 100mA.
Use J14 and J15 connection points for Digital power. Use J1 – J3 connection points for Analog power.
Please note that the left bottom mounting hole of the board is connected to the digital GND. If this
connection is undesirable, remove the resistor R5.
When multiple boards are installed in a stack, use a 20AWG bus wire to connect the power in parallel
between the boards using the power pads center holes.
4. Control Signals Connection
The Volume Control board features a control connector J13 with the following connection points:
If an optional MCU Control Board is used, all control signals are provided through the connector J12.
For multiple boards installation the control signals may be paralleled using rigid pins installed in J13
pads.
5. Audio Signals Connection
Refer to Figure 1 for Audio signals connection. Note that the Left and Right common connections are
routed independently throughout the board, and connected to the analog ground by resistors R3 and
R4. It is recommended to use isolated ground audio connectors to ensure the lowest cross talk and
noise pick-up. Make sure the input signals do not exceed 9Vrms at +/-15V analog power.
6. Using the Volume Control
The volume Control Board has a quality dual opamp installed and is ready to use. Use the Volume
Control as a regular dual channel potentiometer based volume control. Use two boards for balanced
operation.
1. +5V
Digital Power for external controller
2. D_GND
Digital Ground for external controller
3. LATCH
LATCH MUSES Control Signal Input
4. DATA
DATA MUSES Control Signal Input
5. CLOCK
CLOCK MUSES Control Signal Input
6. MUTE
Mute Control Input. Active High – Mute Off
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