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1. Connect the DSP-59+ power input jack to a 12-16 VDC @ 1 Amp. power supply.
2. Connect a 4 - 8 ohm speaker to the speaker output jack. Alternatively, connect stereo
headphones to the front panel headphone jack.
3. Place all the front panel push-button switches in the out position and rotate both rotary
switches to the six o'clock position. Turn on the power with the power/Gain switch.
4. The normal overload lights will flash on and off alternately.
5. Depress the by-pass push-button. The DSP-59+ will produce a 500 Hz. tone.
6. Depress the AGC push-button. The tone will change to 2000 Hz.
7. Release the AGC pushbutton. The tone will change back to 500 Hz. The tone will change
to 2000 Hz. when any other push-button is depressed. Repeat this test until all the buttons
have been tested.
8. The front panel switch test is complete.
Self Test End
To end the self test , turn the power off with the volume control, rotate the rotary switches from
the six o’clock position, and turn the power back to normal operating mode.
Common Problems and Solutions.
"Normal" LED does not flash on audio peaks
.
1. Check power connection to DSP-59+.
2. Increase audio input level with receiver audio output level control until the "Normal" LED
flashes.
3. Bypass the DSP-59+ by turning it off. Verify the audio level out of the radio by listening
to the speaker. If nothing is heard, plug a set of
stereo
headphones into the front panel
headphone jack. If no audio is heard in the headphones or speaker, check audio input
connections from the receiver’s external speaker output to the DSP-59+. Make sure the
cable polarity is correct. See the audio input installation section.
"Overload" LED flashes on audio peaks
.
1. Check power connection to DSP-59+.
2. Reduce audio input level with receiver’s audio output volume control, audio levels into the
DSP-59+ are very important for distortion-free reception.
No audio output
1. Check power connection to DSP-59+.
2. Increase audio input level with receiver audio output level control until the "Normal" LED
flashes.
3. Turn the DSP-59+’s front panel audio level control clockwise.
4. Bypass the DSP-59+ by turning it off. Verify the audio level out of the radio by listening
to the speaker. If nothing is heard, plug a set of
stereo
headphones into the front panel
headphone jack. If audio is heard in the headphones, check the speaker connections. If no
audio is heard in the headphones or speaker, check audio input connections to the DSP-59+
from the receiver.
5. Check audio output device (speaker or headphones).
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