8 – Troubleshooting
8-2
March 6, 1997
"Normal" LED does not flash on audio peaks.
1.
Check power connection to DSP-599zx.
2.
Increase audio input level with receiver audio output level control until
the "Normal" LED flashes.
3.
Bypass the DSP-599zx 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 rear 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-599zx. Make
sure the cable polarity is correct. See the audio input installation sec-
tion.
"Overload" LED flashes constantly on audio peaks.
1.
Check power connection to DSP-599zx.
2.
Reduce audio input level with receiver’s audio output volume control,
audio levels into the DSP-599zx are very important for distortion-free
reception. Occasional flashes of the overload LED are usually not a
problem.
No audio output
1.
Check power connection to DSP-599zx.
2.
Increase audio input level with receiver audio output level control until
the "Normal" LED flashes.
3.
The speaker icon should be visible on the top line of the display. If it
is not visible, press
[Spkr]
to unmute the speaker.
4.
Verify that the radio is connected to the channel shown on the display.
5.
Turn the DSP-599zx’s front panel audio level control clockwise.
6.
Bypass the DSP-599zx by turning it off. Verify the audio level out of
the radio by listening to the speaker. If no audio is heard from the
speaker, check the speaker connections with the DSP-599zx and the
connections between the receiver and the DSP-599zx. If no audio is
heard in the headphones or speaker, check audio input connections to
the DSP-599zx from the receiver.
7.
Check audio output device (speaker or headphones).
Summary of Contents for DSP-599zx
Page 1: ...DSP 599zx Audio Noise Reduction Filter Operating Manual March 6 1997 TECHNOLOGY INC ...
Page 56: ...4 Voice Mode 4 8 March 6 1997 ...
Page 62: ...5 CW Mode 5 6 March 6 1997 ...
Page 92: ...8 Troubleshooting 8 4 March 6 1997 ...
Page 96: ...Appendix B Glossary A 4 March 6 1997 ...
Page 98: ...Appendix C Product Warranty A 6 March 6 1997 ...
Page 100: ...Appendix D Electromagnetic Interference A 8 March 6 1997 ...
Page 102: ...Appendix E Schematic Diagrams A 10 March 6 1997 ...
Page 103: ...DSP 599zx Audio Noise Reduction Filter March 6 1997 A 11 ...
Page 104: ...Appendix E Schematic Diagrams A 12 March 6 1997 ...
Page 105: ...DSP 599zx Audio Noise Reduction Filter March 6 1997 A 13 ...
Page 106: ...Appendix E Schematic Diagrams A 14 March 6 1997 ...
