OPERATING THE TX190
Connecting the front panel to the TX190 board
The TX190 panel should be assembled to the TX190 main board.
connector.
Power source
The TX190 needs single power supply of 18V DC and at least 750mA to operate.
Maximum operating voltage is 24V, exceeding this voltage will cause overheating the main regulator.
The power supply must be a switching power mode with low ripple,
We do not recommend using a transformer power supply; it can make strong noises from the 50/60Hz AC line.
Power supply should be connected to the twisted black/red wires Red is positive (+) and Black is ground (–).
CAUTION – connecting the power supply in wrong polarity will damage the TX190.
Connecting the audio inputs
The TX190 has 2 XLR balanced inputs.
For balance audio source: Pin 1 is the Ground, pin 2 is the signal in normal polarity and pin 3 is the signal in inverted polarity.
For unbalance audio source: both pin 1 pin 3 connected to the audio source ground, pin 2 connects to the audio source live signal.
Note: 1. balanced signal has more immunity to external noises.
2. Most CD's and computer audio outputs are unbalanced.
not connecting both pins 1 and 3 together in case of unbalanced audio source will result in poor
audio or no audio at all.
1
3
2
RED LINE OF FLAT CABLE
One end goes to the bottom of the LCD and the other
to the left side of the LCD_SW connector
CAUTION!
1. Connecting the panel connector in wrong polarity or to a wrong connector will damage the LCD display.
2. Do not touch the "CONTROLLER" connector it is used for test equipment on
ly.
.
Image for illustrative purposes only
Summary of Contents for TX190
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